Retrofitting auto-pilot system wiring harness - AN82.61-P-1001-01C

Model 170

Modify auto-pilot system wiring harness (1) according to figure (tie out all wires not required).
Auto-pilot system schematic

Fig 1: Auto-Pilot System Schematic
Prepare auto-pilot system (1) wiring harness as shown in figure

Fig 2: Connection Schematic For Auto Pilot System
Route wiring harness along existing wires in vehicle as shown in figure.

Fig 3: Identifying Existing Wires Route In Vehicle
Route auto-pilot system wiring harness (1) along existing wires in trunk as shown in figure.
Connect brown wire to ground (right wheelhouse in trunk) (W7).

Fig 4: Identifying Route Auto-Pilot System Wiring Harness With Existing Wires In Trunk
Install new terminal on red/yellow wire (rt/ge) (circuit 30) from wiring harness (1) and connect to fuse 23 in fuse box in trunk (F4).
Solder gray/yellow wire (gr/ge) for back-up lamp signal from wiring harness (1) to gray/yellow wire (gr/ge) for right taillamp using solder connector.

Fig 5: Identifying Gray/Yellow Wire
Route wiring harness (1) through rear wall on right forward in cable duct below passenger seat to right foot support.

Fig 6: Identifying Wiring Harness Route
Route yellow (ge), blue (bl) and black/yellow wires (sw/ge) from auto-pilot system wiring harness (1) from right foot support to module box.

Fig 7: Identifying Auto-Pilot System Wiring Harness
Open data link connector (X 11/4).
Insert blue wire (bl) into chamber 32 on data link connector (X11/4).
Close data link connector (X11/4).
Disconnect the smaller of the two connectors (2) from the traction system control module and open at rear.
Install new terminal on yellow wire (ge) and insert into free chamber 2 on connector (2).
Solder black/yellow wire (sw/ge) to green/white wire (gn/ws) from chamber 1 in connector (2) using solder connector.

Fig 8: Identifying Data Link Connector
Jack up vehicle at front until front wheels can be turned.
Connect battery, switch on ignition.
Use multimeter to measure DC voltage between yellow wire (ge), black/yellow wire (sw/ge) and ground. The yellow wire (ge) is for the right front wheel signal. The black/yellow wire (sw/ ge) is for the left front wheel signal with wheel standing still "0 V or 12 V" and with wheel turning approx. "6 V". A pulse signal should be measurable when wheel is turning (rectangular signal).

Fig 9: Measuring DC Voltage Between Yellow Wire Black/Yellow Wire Ground
Switch off ignition, disconnect battery.
Route tie-out to radio and navigation operating unit (APS) in radio shaft.
Solder black/gray/red wire (sw/gr/rt) to pink/green wire (rs/gn) from radio connector (3) with solder connector (circuit 15 R).

Fig 10: Identifying Auto Pilot System Wiring Harness And Connector