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    Thread: Read and reset airbag fault codes and turn off warning lights without VAG 1551. Here’s how.

    1. Member dandydanny's Avatar
      Join Date
      Sep 20th, 2005
      Location
      Los Angeles, CA
      Posts
      748
      Vehicles
      92 Cabriolet Carat Triple White
      08-10-2010 02:47 AM #1
      Edits and Additions (Read here for recently updated information):

      2012/11/06: Updated airbag code table with supplemental information from 1990-1991 Porsche 911, 924 and 944 series cars.
      2012/05/15: Added scans of the official VW factory microfiche, section 68 (Cabriolet with airbag).
      2011/11/12: Added more codes obtained from the official VW Repair Manual Microfiche.
      2011/10/26: Adde partial trouble code list added, edited instructions to reflect recently obtained information.
      2010/10/15
      : Added link to the jumper-only code reset procedure courtesy of Dave (redcorradoguy).

      ***

      There have been some talks in the forum about the code read and warning light reset procedure for the airbag system equipped in the 1990-1993 VW Cabriolet. This thread contains instruction to read and reset airbag code and turn off warning lights.

      Quick history recap:

      The Federal Motor Vehicle Safety Standard 208 in the United States “require cars produced after April 1st 1989 to be equipped with a passive restraint for the driver.” VW met this requirement for the Cabriolet model by implementing a Siemens-based airbag system. An automatic seat belt would also meet the passive restraint requirement, but the owners of cars with automatic seat belts can vouch its awkwardness and inconvenience.

      According to the VW service literature I have, the airbag system won’t deploy if any one of the two red airbag warning lights in the instrument cluster is illuminated.

      The official VW tech literature, Tech Talk video # 225, and the Bentley service manual calls for the use VAG 1551 diagnostic tester and the factory service microfiche / microfilm.

      VAG 1551, despite being old and outdated, is hard to find and expensive to buy.

      VAG-COM / VCDS does not communicate with the airbag controller. Ross-Tech noted the incompatibility in their VW Issues & Problem page.

      The only 3rd party product I found that has direct mention of being compatible with the VW Cabriolet airbag controller is the old VWTool / VDS-Pro software.



      This thread will mostly deal with the use of the VWTool software to read and erase the airbag fault codes.


      ---


      Here are the parts of the airbag system we will be dealing with:

      The airbag diagnostic connector:



      Airbag warning lights:



      Why are the lights on?

      The left readiness indicator illuminates to indicate the system is not ready to deploy. The system may be in the process of charging the energy reserve capacitor (which takes about 5 seconds to complete), disabled due to stored fault code, or it’s in the process of communicating with the scan tool. It is also used for the blink code output.

      Left light on = system not ready.

      The right fault indicator illuminates to indicate there is / are trouble code(s) detected by the airbag controller. Most common reason that triggers this LED is due to component removal where the ignition switch is turned on without having the airbag module connected. On the similar Porsche 924 airbag system, the light is often triggered by low battery charge and the subsequent starting / jump starting attempts.

      Right light on = system detected a fault.


      ---



      Code-read and light-reset procedure:

      What I used:

      1. A generic serial* VAG-COM compatible OBD-II KKL cable
      2. VW/Audi 2x2 “OBD-I” adapter
      3. A PC with a real serial / 9-pin RS-232 port, running Windows (I used Windows XP). Note that USB to serial adapters, like the one built into the FTDI-based USB VAG-COM cable I own, does not work* with the airbag controller.
      4. VWTool / VDS-Pro software. I’m using an old version, version 2.0.9 (EDIT: Website appears to be defunct as of 2011/10/26. Google is your friend)

      *Addition (2010/12/7): I had the setup working with a generic USB VAG-COM cable, but it seems to be more finicky than the serial cable. VWTools can be run within Windows XP Mode under Windows 7 64-bit (Professional and up), although there seems to be periodic loss in communication to the airbag controller (but will re-establish communication after a few seconds).

      Prepare the computer:

      Connect the DB9 connector of the VAG-COM cable to a serial port on the computer.

      Install the VWTools software, configure the software to use the correct COM Port number, corresponding to the physical serial connector the VAG-COM cable is connected to. On serial port-equipped PCs, the ports are normally assigned to COM1 through COM3 and can be verified or reassigned in the XP device manager window.

      Connect the cables to the car:

      Lift up the shift boot / shift plate to reveal the diagnostic connectors. Federal-emission cars will have a black and a red connector, while the California-emission cars will have an additional white connector for the Digifant-I engine control unit.

      Connect the black plug to the black connector. This supplies power to the VAG-COM cable.
      Connect the white plug to the red connector. This is the communication line to the airbag controller.
      Connect the 2x2 adapter cable to the serial VAG-COM cable. The indicator light on the VAG-COM cable should now be lit.

      Performing code read:

      Turn the ignition switch to the on position. No need to start the car. You should see the two lit airbag warning lights in the instrument cluster.

      Launch the VWTool software.

      Click on the yellow “Audi-VW Tool Version 2.0.9” text. “Manual Address Entry” window should appear.
      In the address box, type in 57, then click Send Address.



      If the communication between the PC and the car is established, a “Receiving Data” text in blue should be blinking, and the airbag controller information will show in the yellow boxes.



      Click on Fault Codes.

      A list of fault codes should be listed in a window.

      Addition (2011/10/26): Make a note of your codes and compare them with the code list near the end of this post.

      If your code is not listed, lease take a note of this code and its descriptions, if available. Reply to this thread with your unknown codes.

      Performing code erase:

      Click Erase Error Codes button, and confirm code erasure in the next window. The right airbag warning light should turn off.

      Turn off the ignition and turn it back on. If the right airbag warning light stays off, the reset procedure is complete.

      If the light comes back on, there is likely a current fault that needs to be located and corrected. Look up the error code with the service information to aid in locating the problem. The repair procedure may be added to another thread once the official factory service information is located.

      The descriptions of the airbag fault codes are mostly unknown as the system is not well-documented. Although, it is possible that the official factory service microfiches contain this information. Please contact me if you have access to the factory microfiches. (EDIT 2011/11/12: Official VW Repair Manual Microfiche located, post edited to reflect available information)

      If you don’t have the cables but would like to read the codes, please refer to the (EDIT 2011/10/26) airbag page on Cabby-Info. Note: on the spare controller I'm testing on, code reset involves grounding pin 1 for about 10 seconds after reaching the end-of-code sequence; replace step 8 with "ground pin 1 for 10 seconds, disconnect jumper, then switch off the ignition."

      Will these old airbag systems still deploy?

      Numerous YouTube videos of rigged airbag deployments suggest the gas generator in old cars do work. A functional airbag system relies on proper gas generator operation, good connectivity between components, as well as proper sensor and controller operation. I believe if the controller is capable of detecting faults of various components and setting fault codes (other than the “airbag controller fault” error), the controller is functional and there is a good chance the airbag will deploy in a severe frontal collision.

      I hope this information would be useful to fellow cabby owners


      Update (2012/11/6): Partial Trouble Code List / Definitions:

      With a spare airbag controller, associated components, plus some trial-and-error, I was able to replicate some fault conditions and record the trouble codes, both the VWTools hex code and the jumper blink code. A partial code list is included below.


      <table cellspacing="0" cellpadding="3" border="1"> <tr> <td bgcolor="#FFCCFF">Current Fault (31, h70)</td> <td bgcolor="#FFCCFF">&nbsp;</td> <td bgcolor="#CCFFFF">Stored Fault (32, hB0)</td> <td bgcolor="#CCFFFF">&nbsp;</td> <td>&nbsp;</td> <td>&nbsp;</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#CCCCCC"><strong>Blink Code</strong></td> <td bgcolor="#CCCCCC"><strong>VWTool Code</strong></td> <td bgcolor="#CCCCCC"><strong>Blink Code</strong></td> <td bgcolor="#CCCCCC"><strong>VWTool Code</strong></td> <td bgcolor="#CCCCCC"><strong>Description (Porsche)</strong></td> <td bgcolor="#CCCCCC"><strong>Description (VW Cabriolet)</strong></td> <td bgcolor="#CCCCCC"><strong>Notes &amp; Observations</strong></td> </tr> <tr> <td>3000</td> <td>&nbsp;</td> <td>&nbsp;</td> <td>&nbsp;</td> <td>Fault memory read out complete</td> <td>All faults read</td> <td>Blinked after all other codes are displayed, blinked as 3</td> </tr> <tr> <td bgcolor="#FFCCFF">3111</td> <td bgcolor="#FFCCFF">0B_70</td> <td bgcolor="#CCFFFF">3211</td> <td bgcolor="#CCFFFF">0B_B0</td> <td>Left Crash Sensor: Closed One Time</td> <td>&nbsp;</td> <td>Close = triggered, activated</td> </tr> <tr> <td bgcolor="#FFCCFF">3112</td> <td bgcolor="#FFCCFF">0C_70</td> <td bgcolor="#CCFFFF">3212</td> <td bgcolor="#CCFFFF">0C_B0</td> <td>Left Crash Sensor: Closed Several Times</td> <td>&nbsp;</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3113</td> <td bgcolor="#FFCCFF">0D_70</td> <td bgcolor="#CCFFFF">3213</td> <td bgcolor="#CCFFFF">0D_B0</td> <td>Right Crash Sensor: Closed One Time</td> <td>&nbsp;</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3114</td> <td bgcolor="#FFCCFF">0E_70</td> <td bgcolor="#CCFFFF">3214</td> <td bgcolor="#CCFFFF">0E_B0</td> <td>Right Crash Sensor: Closed Several Times</td> <td>&nbsp;</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3115</td> <td bgcolor="#FFCCFF">0F_70</td> <td bgcolor="#CCFFFF">3215</td> <td bgcolor="#CCFFFF">0F_B0</td> <td>Left Crash Sensor: Closed 2 Seconds (2)</td> <td>&nbsp;</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3116</td> <td bgcolor="#FFCCFF">10_70</td> <td bgcolor="#CCFFFF">3216</td> <td bgcolor="#CCFFFF">10_B0</td> <td>Right Crash Sensor: Closed More Than 2 Seconds (2)</td> <td>&nbsp;</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3117</td> <td bgcolor="#FFCCFF">11_70</td> <td bgcolor="#CCFFFF">3217</td> <td bgcolor="#CCFFFF">11_B0</td> <td>Left Crash Sensor: Resistance To Voltage</td> <td>&nbsp;</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3118</td> <td bgcolor="#FFCCFF">12_70</td> <td bgcolor="#CCFFFF">3218</td> <td bgcolor="#CCFFFF">12_B0</td> <td>Right Crash Sensor: Resistance To Voltage</td> <td>&nbsp;</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3119</td> <td bgcolor="#FFCCFF">13_70</td> <td bgcolor="#CCFFFF">3219</td> <td bgcolor="#CCFFFF">13_B0</td> <td>Left Crash Sensor: Resistance To Ground</td> <td>&nbsp;</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3120</td> <td bgcolor="#FFCCFF">14_70</td> <td bgcolor="#CCFFFF">3220</td> <td bgcolor="#CCFFFF">14_B0</td> <td>Right Crash Sensor: Resistance To Ground</td> <td>&nbsp;</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3121</td> <td bgcolor="#FFCCFF">15_70</td> <td bgcolor="#CCFFFF">3221</td> <td bgcolor="#CCFFFF">15_B0</td> <td>Left Crash Sensor: Short To Voltage</td> <td>&nbsp;</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3122</td> <td bgcolor="#FFCCFF">16_70</td> <td bgcolor="#CCFFFF">3222</td> <td bgcolor="#CCFFFF">16_B0</td> <td>Right Crash Sensor: Short To Voltage</td> <td>&nbsp;</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3125</td> <td bgcolor="#FFCCFF">19_70</td> <td bgcolor="#CCFFFF">3225</td> <td bgcolor="#CCFFFF">19_B0</td> <td>Left Crash Sensor: Excessive Ground Resistance</td> <td>Left crash sensor not grounded</td> <td>Connected, but case not bolted to car body</td> </tr> <tr> <td bgcolor="#FFCCFF">3126</td> <td bgcolor="#FFCCFF">1A_70</td> <td bgcolor="#CCFFFF">3226</td> <td bgcolor="#CCFFFF">1A_B0</td> <td>Right Crash Sensor: Excessive Ground Resistance</td> <td>Right crash sensor not grounded</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3127</td> <td bgcolor="#FFCCFF">1B_70</td> <td bgcolor="#CCFFFF">3227</td> <td bgcolor="#CCFFFF">1B_B0</td> <td>Left Crash Sensor: Open Circuit</td> <td>Left crash sensor disconnected</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3128</td> <td bgcolor="#FFCCFF">1C_70</td> <td bgcolor="#CCFFFF">3228</td> <td bgcolor="#CCFFFF">1C_B0</td> <td>Right Crash Sensor: Open Circuit</td> <td>Right crash sensor disconnected</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3129</td> <td bgcolor="#FFCCFF">1D_70</td> <td bgcolor="#CCFFFF">3229</td> <td bgcolor="#CCFFFF">1D_B0</td> <td>Left Crash Sensor: High Wire Resistance</td> <td>?</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3130</td> <td bgcolor="#FFCCFF">1E_70</td> <td bgcolor="#CCFFFF">3230</td> <td bgcolor="#CCFFFF">1E_B0</td> <td>Left Crash Sensor: High Wire Resistance</td> <td>?</td> <td>Seems to be common, blinked as 3-1-3</td> </tr> <tr> <td bgcolor="#FFCCFF">3133</td> <td bgcolor="#FFCCFF">21_70</td> <td bgcolor="#CCFFFF">3233</td> <td bgcolor="#CCFFFF">21_B0</td> <td>Driver-Side Air Bag: Capacity Insufficient (3)</td> <td>&nbsp;</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3135</td> <td bgcolor="#FFCCFF">23_70</td> <td bgcolor="#CCFFFF">3235</td> <td bgcolor="#CCFFFF">23_B0</td> <td>Driver-Side Air Bag: Capacity Excessive (3)</td> <td>&nbsp;</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3137</td> <td bgcolor="#FFCCFF">25_70</td> <td bgcolor="#CCFFFF">3237</td> <td bgcolor="#CCFFFF">25_B0</td> <td>Driver-Side Air Bag: Contact Resistance To Voltage</td> <td>&nbsp;</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3140</td> <td bgcolor="#FFCCFF">28_70</td> <td bgcolor="#CCFFFF">3240</td> <td bgcolor="#CCFFFF">28_B0</td> <td>Driver-Side Air Bag: Short To Voltage</td> <td>Driver airbag short to 12v</td> <td>Blinked as 3-1-4, green wire short to 12v</td> </tr> <tr> <td bgcolor="#FFCCFF">3143</td> <td bgcolor="#FFCCFF">2B_70</td> <td bgcolor="#CCFFFF">3243</td> <td bgcolor="#CCFFFF">2B_B0</td> <td>Driver-Side Air Bag: Contact Resistance To Ground</td> <td>&nbsp;</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3146</td> <td bgcolor="#FFCCFF">2E_70</td> <td bgcolor="#CCFFFF">3246</td> <td bgcolor="#CCFFFF">2E_B0</td> <td>Driver-Side Air Bag: Short To Ground</td> <td>Driver airbag short to ground</td> <td>Grounding either wire will produce trigger this code</td> </tr> <tr> <td bgcolor="#FFCCFF">3149</td> <td bgcolor="#FFCCFF">31_70</td> <td bgcolor="#CCFFFF">3249</td> <td bgcolor="#CCFFFF">31_B0</td> <td>Driver-Side Air Bag: Break (3)</td> <td>Driver airbag disconnected</td> <td>Nothing connected to airbag connector</td> </tr> <tr> <td bgcolor="#FFCCFF">3152</td> <td bgcolor="#FFCCFF">34_70</td> <td bgcolor="#CCFFFF">3252</td> <td bgcolor="#CCFFFF">34_B0</td> <td>Driver-Side Air Bag: Resistance Insufficient (3)</td> <td>Driver airbag resistance too low</td> <td>Airbag connector shorted with jumper</td> </tr> <tr> <td bgcolor="#FFCCFF">3155</td> <td bgcolor="#FFCCFF">37_70</td> <td bgcolor="#CCFFFF">3255</td> <td bgcolor="#CCFFFF">37_B0</td> <td>Driver-Side Air Bag: Excessive Resistance (3)</td> <td>Driver airbag resistance too high</td> <td>10 ohm resistor across airbag connector</td> </tr> <tr> <td bgcolor="#FFCCFF">3158</td> <td bgcolor="#FFCCFF">3A_70</td> <td bgcolor="#CCFFFF">3258</td> <td bgcolor="#CCFFFF">3A_B0</td> <td>Warning Light: Short To Voltage</td> <td>Left readiness lamp short to 12v</td> <td>12v into connector pin 6</td> </tr> <tr> <td bgcolor="#FFCCFF">3159</td> <td bgcolor="#FFCCFF">3B_70</td> <td bgcolor="#CCFFFF">3259</td> <td bgcolor="#CCFFFF">3B_B0</td> <td>Warning Light: Break In Circuit</td> <td>Left readiness lamp resistance too high</td> <td>Burn out lamp, disconnected wiring, ignition switched on without instrument cluster connected</td> </tr> <tr> <td bgcolor="#FFCCFF">3160</td> <td bgcolor="#FFCCFF">3C_70</td> <td bgcolor="#CCFFFF">3260</td> <td bgcolor="#CCFFFF">3C_B0</td> <td>Diagnosing Unit Unit Faulty (2)</td> <td>&nbsp;</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3161</td> <td bgcolor="#FFCCFF">3D_70</td> <td bgcolor="#CCFFFF">3261</td> <td bgcolor="#CCFFFF">3D_B0</td> <td>Firing Order Correct After Crash</td> <td>&nbsp;</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3162</td> <td bgcolor="#FFCCFF">3E_70</td> <td bgcolor="#CCFFFF">3262</td> <td bgcolor="#CCFFFF">3E_B0</td> <td>Ignition Current Correct After Crash</td> <td>&nbsp;</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3165</td> <td bgcolor="#FFCCFF">41_70</td> <td bgcolor="#CCFFFF">3265</td> <td bgcolor="#CCFFFF">41_B0</td> <td>Deployment After Crash</td> <td>&nbsp;</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3167</td> <td bgcolor="#FFCCFF">43_70</td> <td bgcolor="#CCFFFF">3267</td> <td bgcolor="#CCFFFF">43_B0</td> <td>Control Unit Unit Faulty</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3168</td> <td bgcolor="#FFCCFF">44_70</td> <td bgcolor="#CCFFFF">3268</td> <td bgcolor="#CCFFFF">44_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3169</td> <td bgcolor="#FFCCFF">45_70</td> <td bgcolor="#CCFFFF">3269</td> <td bgcolor="#CCFFFF">45_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3170</td> <td bgcolor="#FFCCFF">46_70</td> <td bgcolor="#CCFFFF">3270</td> <td bgcolor="#CCFFFF">46_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3171</td> <td bgcolor="#FFCCFF">47_70</td> <td bgcolor="#CCFFFF">3271</td> <td bgcolor="#CCFFFF">47_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3172</td> <td bgcolor="#FFCCFF">48_70</td> <td bgcolor="#CCFFFF">3272</td> <td bgcolor="#CCFFFF">48_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3173</td> <td bgcolor="#FFCCFF">49_70</td> <td bgcolor="#CCFFFF">3273</td> <td bgcolor="#CCFFFF">49_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3174</td> <td bgcolor="#FFCCFF">4A_70</td> <td bgcolor="#CCFFFF">3274</td> <td bgcolor="#CCFFFF">4A_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3175</td> <td bgcolor="#FFCCFF">4B_70</td> <td bgcolor="#CCFFFF">3275</td> <td bgcolor="#CCFFFF">4B_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3176</td> <td bgcolor="#FFCCFF">4C_70</td> <td bgcolor="#CCFFFF">3276</td> <td bgcolor="#CCFFFF">4C_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3177</td> <td bgcolor="#FFCCFF">4D_70</td> <td bgcolor="#CCFFFF">3277</td> <td bgcolor="#CCFFFF">4D_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3178</td> <td bgcolor="#FFCCFF">4E_70</td> <td bgcolor="#CCFFFF">3278</td> <td bgcolor="#CCFFFF">4E_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3181</td> <td bgcolor="#FFCCFF">51_70</td> <td bgcolor="#CCFFFF">3281</td> <td bgcolor="#CCFFFF">51_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3182</td> <td bgcolor="#FFCCFF">52_70</td> <td bgcolor="#CCFFFF">3282</td> <td bgcolor="#CCFFFF">52_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3183</td> <td bgcolor="#FFCCFF">53_70</td> <td bgcolor="#CCFFFF">3283</td> <td bgcolor="#CCFFFF">53_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3184</td> <td bgcolor="#FFCCFF">54_70</td> <td bgcolor="#CCFFFF">3284</td> <td bgcolor="#CCFFFF">54_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3185</td> <td bgcolor="#FFCCFF">55_70</td> <td bgcolor="#CCFFFF">3285</td> <td bgcolor="#CCFFFF">55_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3186</td> <td bgcolor="#FFCCFF">56_70</td> <td bgcolor="#CCFFFF">3286</td> <td bgcolor="#CCFFFF">56_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3187</td> <td bgcolor="#FFCCFF">57_70</td> <td bgcolor="#CCFFFF">3287</td> <td bgcolor="#CCFFFF">57_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3189</td> <td bgcolor="#FFCCFF">59_70</td> <td bgcolor="#CCFFFF">3289</td> <td bgcolor="#CCFFFF">59_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3190</td> <td bgcolor="#FFCCFF">5A_70</td> <td bgcolor="#CCFFFF">3290</td> <td bgcolor="#CCFFFF">5A_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3192</td> <td bgcolor="#FFCCFF">5C_70</td> <td bgcolor="#CCFFFF">3292</td> <td bgcolor="#CCFFFF">5C_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3193</td> <td bgcolor="#FFCCFF">5D_70</td> <td bgcolor="#CCFFFF">3293</td> <td bgcolor="#CCFFFF">5D_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3194</td> <td bgcolor="#FFCCFF">5E_70</td> <td bgcolor="#CCFFFF">3294</td> <td bgcolor="#CCFFFF">5E_B0</td> <td>&nbsp;</td> <td>?</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3195</td> <td bgcolor="#FFCCFF">5F_70</td> <td bgcolor="#CCFFFF">3295</td> <td bgcolor="#CCFFFF">5F_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3196</td> <td bgcolor="#FFCCFF">60_70</td> <td bgcolor="#CCFFFF">3296</td> <td bgcolor="#CCFFFF">60_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3197</td> <td bgcolor="#FFCCFF">61_70</td> <td bgcolor="#CCFFFF">3297</td> <td bgcolor="#CCFFFF">61_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3198</td> <td bgcolor="#FFCCFF">62_70</td> <td bgcolor="#CCFFFF">3298</td> <td bgcolor="#CCFFFF">62_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">3199</td> <td bgcolor="#FFCCFF">63_70</td> <td bgcolor="#CCFFFF">3299</td> <td bgcolor="#CCFFFF">63_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">?</td> <td bgcolor="#FFCCFF">64_70</td> <td bgcolor="#CCFFFF">?</td> <td bgcolor="#CCFFFF">64_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">?</td> <td bgcolor="#FFCCFF">65_70</td> <td bgcolor="#CCFFFF">?</td> <td bgcolor="#CCFFFF">65_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">?</td> <td bgcolor="#FFCCFF">66_70</td> <td bgcolor="#CCFFFF">?</td> <td bgcolor="#CCFFFF">66_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">?</td> <td bgcolor="#FFCCFF">67_70</td> <td bgcolor="#CCFFFF">?</td> <td bgcolor="#CCFFFF">67_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">?</td> <td bgcolor="#FFCCFF">68_70</td> <td bgcolor="#CCFFFF">?</td> <td bgcolor="#CCFFFF">68_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#FFCCFF">?</td> <td bgcolor="#FFCCFF">69_70</td> <td bgcolor="#CCFFFF">?</td> <td bgcolor="#CCFFFF">69_B0</td> <td>&nbsp;</td> <td>Replace airbag control unit*</td> <td>&nbsp;</td> </tr> <tr> <td>33XX</td> <td>&nbsp;</td> <td>&nbsp;</td> <td>?</td> <td>Downtime (XX indicates amount of time since first fault occurrence)</td> <td>?</td> <td>&nbsp;</td> </tr> <tr> <td>3500</td> <td>&nbsp;</td> <td>&nbsp;</td> <td>&nbsp;</td> <td>No faults present</td> <td>&nbsp;</td> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#CCCCCC"><strong>Footnote:</strong></td> <td bgcolor="#CCCCCC">&nbsp;</td> <td bgcolor="#CCCCCC">&nbsp;</td> <td bgcolor="#CCCCCC">&nbsp;</td> <td bgcolor="#CCCCCC">&nbsp;</td> <td bgcolor="#CCCCCC">&nbsp;</td> <td bgcolor="#CCCCCC">&nbsp;</td> </tr> <tr> <td colspan="5">* VW Microfiche info</td> <td>&nbsp;</td> <td>&nbsp;</td> </tr> <tr> <td colspan="5">(2) Code 60 is also displayed for Code 15 or 16. Repair the cause for Code 15 or 16, erase fault memory and repeat diagnosis.</td> <td>&nbsp;</td> <td>&nbsp;</td> </tr> <tr> <td colspan="5">(3) For additional diagnosis, see AIR BAG UNIT DIAGNOSIS.</td> <td>&nbsp;</td> <td>Revised 2012/11/06</td> </tr> </table>



      *ADDITION 2011/11/12: Information obtained from the official VW Repair Manual Microfiche


      • If you have blink codes that starts with "31" (VWTools codes that ends in "70"), the problem is current. Warning light will turn back on after code erase, unless the problem is corrected.
      • If you have blink codes that starts with "32" (VWTools codes that ends in "B0"), the problem was previously detected and not happening at the moment. Code erase should keep the lights off.


      *ADDITION 2012/05/15:

      PDF scan of the original VW factory microfiche, section 68, Cabriolet with airbag (5MB)



      PDF scan of the VW Service Training Self Study Information on the Cabriolet Airbag (1.71MB)




      Please visit the airbag page on Cabby-Info for a nicely illustrated blink code reset procedure.


      Disclaimer:


      You are responsible for your own safety. Follow all published safety procedures.
      I am not guaranteeing the airbag system in your car will function as intended.
      I am not responsible for any injuries or damages arising from the use of this information.
      Drive defensively, don’t drink and drive, don’t text and drive.
      Always buckle up.
      Always backup your important data.
      Fruits and vegetables are good for you.



      Further reading:


      Kammy's airbag page on Cabby-Info.
      Jumper-only code reset procedure courtesy of Dave.
      Old blink code read procedure post.
      Federal Motor Vehicle Safety Standard 208.
      Ross-Tech VW Issues & Problem page.
      Description of the Porsche 944 airbag system in Automatic Occupant Protection Systems publication.

      Technical information on the VW diagnostic protocol used by the VAG 1551.
      Last edited by dandydanny; 11-07-2012 at 01:30 AM. Reason: Additional Information

    2. Member Moljinar's Avatar
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      08-10-2010 08:49 AM #2
      Bravo!!!!!

    3. 08-10-2010 10:23 AM #3
      Is there any place more local to buy the cables?

    4. Member sehaare's Avatar
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      08-10-2010 05:39 PM #4
      great write up,

      But I'll freely admit that I'm stupid if you tell me what all software I need to download from the linked page

      Steve
      Enjoy every sandwich - Warren Zevon

    5. Member dandydanny's Avatar
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      08-10-2010 08:48 PM #5
      Quote Originally Posted by Moljinar View Post
      Bravo!!!!!
      :bows:

      Hooray for bier!

      Quote Originally Posted by rbarb1111 View Post
      Is there any place more local to buy the cables?
      Not that I'm aware of, no. The serial cable is of an old design, not many vendors still have it for sale, and the current ones Ross Tech sells are much more intelligent (and unfortunately, cost more) and may not be compatible with the old VWTools software.

      Schematics exist on the web for you to build your own if you're so inclined. I remember it consists of a RS232 transceiver, TTL level shifter, transistors, and some passives.

      eBay is a good source.

      Quote Originally Posted by sehaare View Post
      great write up,

      But I'll freely admit that I'm stupid if you tell me what all software I need to download from the linked page

      Steve
      Danke!

      It's the first link: 1.VWTool, FOR KKL VAG INTERFACE

      There are two files in the RAR archive: Release4091us.exe (old VAG-COM) and VWTool.EXE (archive that contains VWTool). Double click on VWTool.EXE to extract the setup up files to a temporary location (c:\temp by default), and run the setup file inside the temporary folder.

    6. 08-10-2010 09:11 PM #6
      ok thanks i'll just order the one from extreme

      Thanks Again

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      08-11-2010 12:35 AM #7
      Excellent! Cabby-Info'd!

      Considering the Cabriolet was the only VW of the early '90s to get an airbag, I'm not surprised there isn't much info regarding fault codes and such.
      Cabby-Info.com -- Your online guide to the VW Cabriolets
      Old Blue's Blog -- The adventures of a 1990 Westfalia
      "Fashion is a waste of money that could be better spent on, say, maintaining your car." ~James May

    8. Member CajunSpike's Avatar
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      08-11-2010 12:54 AM #8
      Cables ordered, software downloaded.....can I paypal the guy who figured this out...if it works for my THREE cars?
      Last edited by CajunSpike; 08-11-2010 at 12:59 AM.

    9. Member dandydanny's Avatar
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      08-11-2010 08:53 PM #9
      Quote Originally Posted by kamzcab86 View Post
      Excellent! Cabby-Info'd!

      Considering the Cabriolet was the only VW of the early '90s to get an airbag, I'm not surprised there isn't much info regarding fault codes and such.
      Thank you Kammy I feel honored to be able to contribute to Cabby-Info. I was so happy when Ron included a link to my 24-hour clock modification thread in his NeoBentley+ last time. It's like being included in the hall of fame.

      I think all there is left to find out is the meaning of the trouble codes / blink codes. It is possible that the description is listed only within the VAG 1551 diagnostic tool, but I really hope there's a complete listing in the factory microfiche / eBahn CD.

      Quote Originally Posted by CajunSpike View Post
      Cables ordered, software downloaded.....can I paypal the guy who figured this out...if it works for my THREE cars?
      Moneeeyyy

      Wow, 3 cars? That's a potential treasure trove of stored airbag fault codes. Maybe you can list yours here?

      Oh, and any words about the airbag controller from your contacts at Siemens?

    10. Member redzone98's Avatar
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      08-12-2010 10:46 AM #10
      Sticky !

    11. Member CajunSpike's Avatar
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      08-12-2010 12:07 PM #11
      I sent emails to 6 different people in the company...nobody took the time to answer.

      Would you like me to do the blink codes before i try the reset while waiting for the cables come in?

      Oh, and I'm working on a 90 for a friend, that the airbag lights are OFF...can you believe that?

    12. Member egranlund's Avatar
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      08-12-2010 01:52 PM #12
      Holy crap. Bravo Danny!

      Another cabby mystery solved

    13. Member dandydanny's Avatar
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      08-12-2010 02:46 PM #13
      Quote Originally Posted by redzone98 View Post
      Sticky !


      Quote Originally Posted by CajunSpike View Post
      I sent emails to 6 different people in the company...nobody took the time to answer.
      Thank you for taking the time to make contact with the 6 at Siemens. I have not attempted to contact VWoA; do you think they may be willing to digging out old airbag tech info in their vault?

      Quote Originally Posted by CajunSpike View Post
      Would you like me to do the blink codes before i try the reset while waiting for the cables come in?
      Would you please? We can match the blink code outputs to the fault code numbers and descriptions (if provided within VWTool).

      Quote Originally Posted by CajunSpike View Post
      Oh, and I'm working on a 90 for a friend, that the airbag lights are OFF...can you believe that?
      I can believe that. My airbag fault light didn't light up until June of this year. I was replacing the tie rods on my cabby and turned the steering wheel without power assist. Tugging on it pretty hard and somehow it triggered a fault at the next start up.

      Quote Originally Posted by egranlund View Post
      Holy crap.
      Haha those were my exact words when I got the fault light to shut off at 3AM.

      Quote Originally Posted by egranlund View Post
      Another cabby mystery solved
      I don't think it's quite solved yet, not until we get our hands on the meaning of trouble codes.
      It is then I'll move on to bigger and better things
      Last edited by dandydanny; 08-12-2010 at 03:07 PM.

    14. Member CajunSpike's Avatar
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      08-12-2010 05:01 PM #14
      I sent an email to VWOA thru their website asking for the code list..fingers crossed.

      Blink test to be done asap.

      Did you know about the VWTOOLS already? I think I ran across it while net searching.

    15. Member dandydanny's Avatar
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      08-13-2010 06:17 AM #15
      Quote Originally Posted by CajunSpike View Post
      I sent an email to VWOA thru their website asking for the code list..fingers crossed.

      Blink test to be done asap.

      Did you know about the VWTOOLS already? I think I ran across it while net searching.
      I remember looking up cabby airbag information about 2 years ago. After reading the general consensus here that the airbag system service/reset is dealer-only and generally shrouded in mystery, I attempted to find more information about it.

      Information came from here and there: Porsche 944 steering wheels that looked almost identical (did an interlibrary loan of "Automatic Occupant Protection Systems" book that talked about the system), Ron's airbag circuit thread that talked about VAG 1551, VAG-COM's incompatibility page, and eventually stumbling upon the VWTool PDF manual. Last year Erik linked the VW Tech Talk #225 off YouTube which provided more information.

      Back then my airbag system was (presumably) working so there wasn't a real incentive for me to test it out, but when the warning light finally came on this summer I decided to get the cables and give the software a try.

      I hope VWoA would send some info to you. I look forward in seeing them.

    16. 08-23-2010 03:39 PM #16
      Got my cables today and tried to reset the air bag. I received the error code 1d_70 unknown error code consult the handbook. Erased the codes and the light goes off. When i restart the car it stays off for a minute and then comes back on. Looks like i will have to disable it
      Last edited by rbarb1111; 08-23-2010 at 05:54 PM.

    17. Member dandydanny's Avatar
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      08-24-2010 02:42 AM #17
      Quote Originally Posted by rbarb1111 View Post
      ...it stays off for a minute and then comes back on. Looks like i will have to disable it
      Would you try the blink code read procedure and post the result here before you dismantle the system?

    18. Member dandydanny's Avatar
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      08-24-2010 02:44 AM #18
      Quote Originally Posted by rbarb1111 View Post
      ...it stays off for a minute and then comes back on. Looks like i will have to disable it
      Would you try the blink code read procedure and post the result here before you dismantle the system?

      Compare your blink code with this list see if yours match:

    19. 08-24-2010 07:33 AM #19
      Not sure if it is 322 or 229 !!! The light blinks 3 times then twice then twice then 9 times and repeats this pattern
      Last edited by rbarb1111; 08-24-2010 at 03:31 PM.

    20. Member jason92300's Avatar
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      08-30-2010 06:22 PM #20
      Got my cables today to try this out. However I just realized my labtop doesn't have a serial 9 plug on it, just usb's. They make a adapter plug that goes from usb to the 9pin serial at radio shack, but does anyone know if the cables and program will work with that extra plug set that I would need?

    21. Member CajunSpike's Avatar
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      08-30-2010 11:25 PM #21
      Got my cables as well. I'm going to setup a small desktop on a cart and wheel it out to the car(s) next few days.

    22. Member dandydanny's Avatar
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      08-31-2010 01:41 AM #22
      Quote Originally Posted by jason92300 View Post
      does anyone know if the cables and program will work with that extra plug set that I would need?
      The USB to Serial adapter will probably not work for the airbag controller (it didn't work for me. I have the blue USB VAG-COM cable that has the same guts as most generic USB to Serial adapters).

      However, that blue USB VAG-COM cable did communicate with my California Digifant I ECU.

      Never hurt to try though; if it does work, let us know what brand / model of the adapter you used. If not, return the adapter for a refund.

      Quote Originally Posted by CajunSpike View Post
      Got my cables as well. I'm going to setup a small desktop on a cart and wheel it out to the car(s) next few days.
      Haha I also used a non-portable computer for mine. I had to bring the computer, monitor, keyboard, and mouse to the car, and ran an extension cable to power the whole mess.

      The airbag light is behaving normally in my car so far *knock on wood*

    23. Member jason92300's Avatar
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      08-31-2010 10:31 AM #23
      Got my cables as well. I'm going to setup a small desktop on a cart and wheel it out to the car(s) next few days.
      I went ahead and did this as well. Unfortionaly it did not work for me, kept saying "no response from controller".
      Now when I got my car the first thing I did was cut and splice the 2 small black wires at the connector below the fuse panel to turn the dash lights off. Today I just simply hooked them back up.
      I also tryed the flash code method as well with no luck. It would blink one time and then nothing.
      Any one know if there is a hidden fuse or relay to the airbag system? Beings the car has 90k on it now i don't wanna rule out the controller being bad just yet.
      Last edited by jason92300; 08-31-2010 at 01:36 PM.

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      09-11-2010 06:17 PM #24
      One of the people I sent emails in europe a couple of weeks ago, finally answered. I need to send him the model number of the controller and he'll do some research.

      Going try to reset today.

      Update:
      91 Etienne, reset worked, airbag light stays off.
      92 Carat, reset worked, airbag light came back on. I'll post the code.
      I do have a parts car if we can figure out what the code means.
      Second 91 etienne is in body shop, no access to the car at this point.

      Saved the error codes from both cars..when I get the pc back inside, I"ll post them.
      The program and cable works flawlessly. Just depends if there is an actual problem with the system or not, if the light comes back on or not.
      Last edited by CajunSpike; 09-13-2010 at 01:19 AM.

    25. Member vwpoorboy's Avatar
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      09-12-2010 09:37 PM #25
      jason92300
      Got my cables as well. I'm going to setup a small desktop on a cart and wheel it out to the car(s) next few days.
      I went ahead and did this as well. Unfortionaly it did not work for me, kept saying "no response from controller".
      Now when I got my car the first thing I did was cut and splice the 2 small black wires at the connector below the fuse panel to turn the dash lights off. Today I just simply hooked them back up.
      I also tryed the flash code method as well with no luck. It would blink one time and then nothing.
      Any one know if there is a hidden fuse or relay to the airbag system? Beings the car has 90k on it now i don't wanna rule out the controller being bad just yet.
      well i am in the same boat ^

      HOWEVER... I do have access to a VAG 1551

      If anyone has information as to what this code means or some type of diagnostic flow chart with possibilities this would be a great help.

      If I can get my light cleared then I could be of assistance by comparing blink codes to VAG 1551 codes and we can get some headway on this mystery.

    26. Member CajunSpike's Avatar
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      09-13-2010 01:10 AM #26
      On another board, they have a member who works at a dealer in the parts department. He said he would look around for anything we need, information wise. I asked for a code/reason list for the airbag system.
      I will also ask this of the person in europe who replied to one of my notes.
      The email direct to VW went nowhere..they said to talk to the dealer.

      Thanks for offering to help with the VAG1551. We'll get this figured!.

      Just for the record, the cables on my car(s) were never cut....so I'm working with an original setup.

      This is a photo of the airbag controller, if anybody is curious.
      http://cajun.dyndns.org:81/images/vw/airbag.jpg

      I agree the usb cables will probably not work. That VWTOOLS program appears to be an old visual basic program. Its coded to talk directly to a COM port on the pc(I'm a computer guy). I don't think its capable of understanding a serial cable plugged into a usb port, since that didn't exist when it was written(probably).
      Last edited by CajunSpike; 09-13-2010 at 01:22 AM.

    27. Member dandydanny's Avatar
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      09-13-2010 02:29 AM #27
      Quote Originally Posted by vwpoorboy View Post
      If I can get my light cleared then I could be of assistance by comparing blink codes to VAG 1551 codes and we can get some headway on this mystery.
      Looking forward in reading your code and descriptions.

      Quote Originally Posted by CajunSpike View Post
      On another board, they have a member who works at a dealer in the parts department. He said he would look around for anything we need, information wise. I asked for a code/reason list for the airbag system.
      I will also ask this of the person in europe who replied to one of my notes.
      The email direct to VW went nowhere..they said to talk to the dealer.
      Thanks you Bill for doing all the leg work. The more information we have the closer we are to solving this mystery and benefit fellow cabby owners.

      Quote Originally Posted by CajunSpike View Post
      I agree the usb cables will probably not work. That VWTOOLS program appears to be an old visual basic program. Its coded to talk directly to a COM port on the pc(I'm a computer guy). I don't think its capable of understanding a serial cable plugged into a usb port, since that didn't exist when it was written(probably).
      The blue USB VAG-COM compatible cables install a virtual COM port on the host computer, so in theory, software written to communicate with COM ports (running within Windows) should be able to use this virtual COM port and have the USB-Serial chip spit out proper signals.

      Two weeks ago I was playing with that blue USB VAG-COM cable with VWTools to poke around the Digifant I ECU (it does work with Digifant I and VWTools reliably). Later I attempted to communicate with the airbag controller using the USB cable, and somehow it started to work!

      Now, in my previous attempts, I have not been able to get the VWTools and the airbag controller to communicate with the blue USB VAG-COM compatible cable at all.

      It only worked one time however, and afterward the cable seems to be dead: VWTool was not able to get responses from the control unit, and VAG-COM reported no interface detected.

      Maybe the USB VAG-COM compatible cable I have is of a crummy design, or perhaps it does not conform to the exact signal requirements of the airbag controller. I'm waiting for my RMA'd cable to arrive and will update when I have more information.

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      09-24-2010 02:32 AM #28
      Originally Posted by vwpoorboy
      If I can get my light cleared then I could be of assistance by comparing blink codes to VAG 1551 codes and we can get some headway on this mystery.
      Looking forward in reading your code and descriptions.
      this is my problem though... i have a fault but i have no idea where to start looking for the cause
      it's a fault that says no communication or no response from the controller... i can't remember as it was 3months ago.

      PLEASE HELP so i can return help

    29. Member dandydanny's Avatar
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      09-24-2010 04:13 AM #29
      Quote Originally Posted by vwpoorboy View Post
      no communication or no response from the controller
      VWTools displayed that error to me when it's not able to talk to the airbag controller. In my case it was a configuration issue with the COM port.

      The issue could be:
      Incorrect COM port settings (disabled, wrong baud settings, etc. I used the default windows settings)
      Incorrect COM port wiring (in case of white-box desktop PCs)
      Bad cable
      Faulty airbag diagnostic connector wiring
      Faulty airbag controller
      etc

      The quickest test would perhaps be connecting the VAG 1551 to the airbag diagnostic connector and see if they are able to communicate first.

      To check the functionality of the computer / software / cable setup, you can use the VAG-COM software (included in the downloaded file) to check if the computer is able to detect the VAG-COM compatible cable. In VAG-COM, click on "Options," select the correct COM Port, then click "Test."

      You can then try to use VAG-COM to poke address 57. While VAG-COM is not able to talk to the airbag controller in cabbys, it should sense a response and give you an "controller uses unknown protocol" error instead of simply timing out.

      You can also try the computer / software / cable setup on another VW to see if you can establish communication with the ECU (address 01).

      Blink code read out procedure didn't work for you also?

    30. Member vwpoorboy's Avatar
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      09-25-2010 01:45 AM #30
      The quickest test would perhaps be connecting the VAG 1551 to the airbag diagnostic connector and see if they are able to communicate first.
      I got the error/fault message by using the VAG 1551

      Blink code read out procedure didn't work for you also?
      I have yet to try this... i'll try to get to it this weekend

      Faulty airbag diagnostic connector wiring
      Faulty airbag controller
      etc
      this is what i've been thinking too

    31. Member cabrio2k's Avatar
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      10-12-2010 10:03 AM #31
      Wow! Amazing writeup and very informative...Will definitely be buying those cables and trying this!

      Thank you Danny...

      I will report what I find when I do this...

    32. Member CajunSpike's Avatar
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      10-12-2010 03:43 PM #32
      Cabrio2k...read this. You may not have to buy those cables.



      http://forums.vwvortex.com/showthrea...-lights!-SWEET!

    33. Junior Member cooties's Avatar
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      10-14-2010 04:08 AM #33
      Hi all,

      I've also got some airbag fault or other on my '92 Cabriolet. I managed, however, to have a lot of luck with a generic eBay OBD-II USB cable and a genuine Ross-Tech OBD-I "2x2" adaptor Hooked right into my Acer Aspire One running VWTool v2.0.9. Hookup seems quite repeatable and also works fine with the Cali-spec Digifant-I ECU.

      Screenshots:

      The airbag controller reported no less than six fault codes! (1E _70 - 60 _B0 - 2E _B0 - 1D _B0 - 4A _B0 - 48 _B0) I've no idea what the previous owner has done, having just got the car a few weeks back, but there were battery and dashboard shenanigans from what I can see.

      Either way, clearing down the fault codes with VWTool got everything down to just one code; "1E _70". I've no idea what this is, though, but it will come back again and again I'm going to try to do the blink-code thing tomorrow and see if I can cross-reference the blinks to the two hex codes above. I tried deciphering the codes using the Siemens/Porsche list above but nothing really seems to fit.

      More tomorrow ....

      -- Allie

    34. Member cabrio2k's Avatar
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      10-14-2010 06:24 AM #34
      Quote Originally Posted by CajunSpike View Post
      Cabrio2k...read this. You may not have to buy those cables.



      http://forums.vwvortex.com/showthrea...-lights!-SWEET!
      Yes, Thanks again Cajun! That worked and I did not have to buy any cables!

    35. Member CajunSpike's Avatar
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      10-14-2010 12:54 PM #35
      Thats pretty much the same thing that happened to my 92 when I tried clearing the codes.
      Got them all gone cept that same code you have. Hope you can figure it out cuz I'll be right behind you.

      Interesting you got it working with a usb cable as well.
      Last edited by CajunSpike; 10-14-2010 at 01:05 PM.

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