Turn Signal Relay:
Green/Black wire to D1 + E3
Black/Green wire to D12
third prong is ground.
Load Reduction Relay (X Relay):
Only one connection to the harness, Black/Yellow to D7.
Main difference in the horn relay wiring is the change in polarity for the relay. The horn relay in the cabby closes the ground connection - the horns have constant 12V, the horn relay terminal 86 is powered from D5, the horn switch connects between horn relay terminal 85 and ground, ground wire from horn goest to relay terminal 87, and relay terminal 30 goes to ground. The westy wiring puts the relay in the supply side of the horn. The horn switch still brings the control side of the relay to ground.
Black/Yellow is power to horn, A11.
Brown/Blue is connection to horn switch, E11.
Ground from horn is A7
Note that as an optimization, it would be possible to just gound the horns to their mounting bracket and spare the wiring back to the interior. Not sure why they didn't just do that.
E20 and E7 where originally bridged in the harness. E7 is not connected to anything, only E20.
From the F. Wiper fuse is a Black/Gray wire. It is connected to the Black/Gray wire leading to the wiper relay (left prong) as well as to C13 + E15 (+ D5). Since D5 powered the horn relay and we've already covered that, I'll leave D5 unconnected - hence the parentheses.
The picture of the terminals isn't great, but here's where things go:
Middle prong, Green/Black to C9
Bottom prong, Green/Red, two wires from this terminal, one each to C17 and E20.
Right prong, Green/Black to E16
Top-right prong (small), Brown/Black to E8
Black/Yellow from fuse to E13
The cabby doesn't have AC, but this is the pin that burnt out (see first post in thread for pictures). This is the whole reason for all this work.
Black/Red from fuse to D19
Black/Green from fuse to D14.
Red/Gray from fuse to F14.
Two wires from fuse:
Red/Yellow to A14 (stop lights)
Red/White to D21 (hazards)
Green/Blue from fuse to A15
Park Lamps (and side markers and tail lights)
There are two wires from this one. I couldn't figure out where the second one went (the Red/Black one). I will eliminate it or connect it and the other one in parallel (in case I figure out where it goes later).
Gray/Red from fuse to D3.
Note that this is a change from how the cabby is originally wired. The original wiring has unfused power through D3 to the light switch, and then return from the light switch to the fuse box to the fuses for the left and right tail light fuses (S13, 14). The westy fusebox has the fuse before feeding power to the light switch, and no fuse inline to either side. The wires that connected to/from the original fuses are bridged, but I'll get to all the bridged connections later (I have a table of these).
From left to right, top to bottom:
1: Bridged to 3.
2: Ignition switch (Brown/Red). Connects to 'su' terminal
3: To seatbelt switch (White/Violet)
4: Red/Black, to A10 + C10. Note jumper to 10
5: To ground
7: Black, to circuit 15 (switched power)
8: Brown/Gray, to door switch
9: White/Purple, to seatbelt light in dash
10: Red/Black, to E17. Note jumper to 4.
For those of you with seatbelt interlock relays, jumpering 4 to 10 bypasses the interlock relay.
Normally, the fuel pump relay is on a separate relay holder that clips into the top of the fuse panel. There's a relay spot with the same pin locations on the fuse panel for the oil pressure warning relay. Since the cabby doesn't have one of these, I decided to consolidate and put the fuel pump relay in this location.
Note that the pin layout is rotated 90 degrees clockwise from the way the fuel pump relay normally sits. I just moved the wires from the modular relay plug to this location. From left to right, top to bottom:
2: Red wire from fuel pump fuse
4: Red/Black, to C19 + D15
6: Black, circuit 15
7: Black/Green. Two wires, one to A8 (fuel pump), the other to the Aux Air Regulator and Controp Pressure Regulator.
Note: the german fuse box has pin 4 go to A3, which loops to A5, which then connects to C19 through the fusebox. The above setup removes connections to A3 and A5.
D15 is the tach, so cars without a tach may not have a connection there.
The Aux Air regulator and CPR connectors in the cabby have a T-connector from A8. I eliminate the T and use one of the two wire to connect directly.
Black/Blue from fuse to D20
Ok, next up is the table of all the circuits wires from each harness plug...
Modified by ftillier at 12:09 AM 9-29-2006