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    Thread: Double check my diagnosis; having immobilizer issues & I think it's the door lock module

    1. Member Yurko's Avatar
      Join Date
      Nov 10th, 2005
      Overland Park, KS
      2000 NB GLX
      09-07-2012 10:13 PM #1
      This is a 2000 NB GLX (1.8T; APH), ATM

      I've been dealing with immobilizer issues off and on for a while now, without having completely diagnosed them. Usually the car wouldn't start, I would fiddle around with the key, let it sit for a few minutes, and then it would start. This happened most often in the late summer, usually when it was most humid and hot.

      It started happening again this past week or so, and then a couple days back it just stopped wanting to start altogether. Unfortunately it's in the parking garage at work, and I didn't have time to take my laptop up there and run a scan until tonight. After some reading and a conversation with a guy at a local shop, I decided it might be caused by the door lock module.

      I cleared all the codes again, and it still wouldn't start, so I looked at the door lock stuff, and it was reading the driver door as locked all the time (even when it was unlocked), but it was showing it opening and closing. the passenger door was reading accurately.

      I was looking at the DIY to fix all the solders and microswitches, but that's more than I would like to deal with time-wise, so I'm planning on replacing the door lock assembly in the morning.

      Here's my Autoscan (my SAI is going out, hence the emissions codes):

      VCDS Version: Release 11.11.4
      Data version: 20120807


      Chassis Type: 1C - VW New Beetle
      Scan: 01 02 03 08 15 17 19 22 25 26 29 35 37 39 46 54 56 65 75

      Mileage: 235970km/146624miles
      Address 01: Engine Labels: 06A-906-032-AVC.lbl
      Part No: 06A 906 032 A
      Component: 1.8l 5VT NB AT G 3157
      Coding: 00003
      Shop #: WSC 00066
      VCID: 1C29036E8CD149F8DDD

      7 Faults Found:
      18058 - Powertrain Data Bus
      P1650 - 35-10 - Missing Message from Instrument Cluster - Intermittent
      17524 - Oxygen (Lambda) Sensor Heating; B1 S1
      P1116 - 35-00 - Open Circuit
      16839 - EVAP System
      P0455 - 35-00 - Large Leak Detected
      17978 - Engine Start Blocked by Immobilizer
      P1570 - 35-00 -
      16518 - Oxygen (Lambda) Sensor B1 S1
      P0134 - 35-00 - No Activity
      16684 - Random/Multiple Cylinder Misfire Detected
      P0300 - 35-10 - - Intermittent
      16688 - Cylinder 4
      P0304 - 35-10 - Misfire Detected - Intermittent
      Readiness: 0010 1101

      Address 02: Auto Trans Labels: 01M-927-733.lbl
      Part No: 01M 927 733 FB
      Component: AG4 Getriebe 01M 4609
      Coding: 00000
      Shop #: WSC 00000
      VCID: 75FF36CA4FBBB8B0023

      No fault code found.

      Address 03: ABS Brakes Labels: 1J0-907-37x-ABS.lbl
      Part No: 1J0 907 379 AF
      Component: ASR 20 IE CAN 0001
      Coding: 13204
      Shop #: WSC 02334
      VCID: 75FF36CA4FBBB8B0023

      No fault code found.

      Address 15: Airbags Labels: 6Q0-909-605-VW5.lbl
      Part No: 6Q0 909 605 A
      Component: 06 AIRBAG VW5 0003
      Coding: 12342
      Shop #: WSC 00066
      VCID: 357FF6CA0F3BF8B0C23

      No fault code found.

      Address 17: Instruments Labels: 1C0-920-xx0.lbl
      Part No: 1C0 920 901 G
      Component: KOMBI+WEGFAHRS. M73 V02
      Coding: 07202
      Shop #: WSC 24313
      VCID: 2051379EA0B96D18015

      Subsystem 1 - Part No: Ident
      Component: Nr. Wegfahrs.:VWZ5Z0X9195128
      Ident.-Nr. Wegfahrs.:VWZ5Z0X9195128

      1 Fault Found:
      01176 - Key
      65-10 - Unauthorized - Intermittent

      Address 19: CAN Gateway Labels: 6N0-909-901-19.lbl
      Part No: 6N0 909 901
      Component: Gateway KCAN V022
      Coding: 00007
      Shop #: WSC 00066
      VCID: F0F187DEB0D91D98515

      No fault code found.

      Address 46: Central Conv. Labels: 1J0-959-799.lbl
      Part No: 1J0 959 799 AJ
      Component: 5X Zentral-SG Komf. 0001
      Coding: 00256
      Shop #: WSC 00066
      VCID: 861DC106A25D23289B9

      Subsystem 1 - Part No: 1J2959802C
      Component: 5X Tõrsteuerger. FS0002r

      Subsystem 2 - Part No: 1J2959801D
      Component: 5X Tõrsteuerger. BF0002r

      4 Faults Found:
      01329 - Convenience System Data Bus in Emergency Mode
      35-00 - -
      00943 - Heated Exterior Mirror; Driver Side (Z4)
      35-00 - -
      00912 - Window Regulator Switch; Front Left (E40)
      28-00 - Short to Plus
      00944 - Heated Exterior Mirror; Passenger Side (Z5)
      35-00 - -

      Address 54: Rear Spoiler Labels: 1C0-959-733.lbl
      Part No: 1C0 959 733 B
      Component: Heckspoiler 0002
      VCID: 2A45D5B6D685A7485F1

      No fault code found.

      End ---------------------------------------------------------------------

      Also, I looked at blocks 3 & 6 in central convenience. At the time, both doors were closed, and both unlocked:

      Address 46: Central Conv. (1J0 959 799 AJ)

      20:09:06 Group 003: Central Locking (Driver Door)
      Not Oper. Central Locking Key Switch Drv.
      0 1 Rotary Latch & Thermal-Protection
      Locked Central Locking Feedback Driver
      Safe Safe Feedback Driver Door

      20:09:06 Group 006: Central Locking (Passenger Door)
      Not Oper. Central Locking Key Switch Pass.
      0 1 Rotary Latch & Thermal-Protection
      Unlocked Central Locking Feedback Pass.
      Safe Safe Feedback Passenger Door

    2. Member OddJobb's Avatar
      Join Date
      Nov 6th, 2004
      Greenville SC
      2004.5 Jetta GLI, 1995 Golf III City
      09-07-2012 10:31 PM #2
      I doubt it is the door lock module. With all the other codes showing up it looks like you have wiring/electrical issues. You need to start here:

      Look them all up and it will give you leads as to what may be going on here.
      Quote Originally Posted by LG6R View Post
      I never understood this and don't take it personally because people come on here and say that all the time. But if you don't know what it is or what it does, why don't you leave it the hell alone?

    3. Member Yurko's Avatar
      Join Date
      Nov 10th, 2005
      Overland Park, KS
      2000 NB GLX
      09-07-2012 10:47 PM #3
      yeah, however the combi pump (SAI) has been going out for a while, hence all the emissions codes.

      I replaced the power mirror switch with a heated mirror switch when I got the car 6 years ago (and a couple years before the immobilizer issue started), but I don't have heated mirrors, that covers those.

      I had to replace a coil pack last year, and it isn't the bolt-down kind, so it gets loose every once in a while, that covers the miss-fires.

      that leaves 18058, 17978, 01176, and 01329.

      after I cleared the codes the only one that recurred was 01176.

    4. 09-08-2012 05:54 AM #4
      Hello Yurko,

      Thank you for the scan data.

      Last edited by Jack@European Parts; 07-30-2014 at 02:09 PM.

    5. Member Yurko's Avatar
      Join Date
      Nov 10th, 2005
      Overland Park, KS
      2000 NB GLX
      09-08-2012 09:50 AM #5
      wow, thanks, that's super helpful. I'm glad I checked this before I went to buy a new door lock module.

      I did have to replace the heater core a few years back, and that preceded the immobilizer issues, so coolant damaging the harness would make sense.

      I did look at the key measuring blocks as well, and it said the key was readable, but not programmed to the immobilizer, but that there are 2 keys saved. I assumed this was because the immobilizer was blocking startup, but now that you make the point about the door lock module, that conclusion might be incorrect.

      I haven't replaced the batteries in the switchblades in a while, could that address the issue?

      I had looked into the Immo delete (in fact I emailed you about doing it the other day). What additional security features are you referring to?

      Also, regarding the SAI, I've thrown codes for that in the past, so that's where that came from.
      Last edited by Yurko; 09-08-2012 at 10:32 AM.

    6. 09-08-2012 11:43 AM #6
      Last edited by Jack@European Parts; 07-30-2014 at 02:09 PM.

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