Repair of Rear Wiring Harness

Repair Of Rear Wiring Harness

NOTE:
- The combination wires for ABS and BVA (brake-pad wear indicator) are integrated in the wiring harness. In the event of damage, the integrated wires can be removed and replaced by repair wires. The disconnection point is plug connector X 2/2 for the passenger compartment/rear end (yellow) or connector points in the rear luggage compartment.
- After repair, the following function tests must be performed:
- ABS: Test with the Porsche System Tester 2.
- BVA: The indicator light must go out with the engine running and the brake linings intact.







- Plug connection X 2/2, -(arrow)- passenger compartment/rear end: Install preassembled contacts or join wires at connection points.

Removing Rear Wiring Harness
1. Disconnect the battery and cover terminal or battery.
2. Undo combination wire in the area of the rear wheel housing. Remove lining for rear wall of the convertible top compartment
3. Disconnect the plug connections
4. Detach control unit and retaining bracket for the plug connections on the rear wall of the convertible top compartment and expose the combination wires.
5. Carefully remove insulating tape from the combination wire as far as plug connector X 2/2 (do not damage any other wire).

Install Rear Wiring Harness
1. Install repair wire in the wheel housing and route it to plug connection X 2/2.
2. Join wires at the connection points using a crimp connector and crimping tool. Install preassembled contacts in plug connection X 2/2.
3. Colour coding of left and right hand sides of wires:
- Wire 1 - br/gn
- Wire 2 - br/bk
- Wire 3 - br
- Wire 4 - br/bl
- Wire 5 - br/wt
- br - brown
- bk - black
- bl- blue
- wt - white
- gn - green







4. -Unlocking tool- to unlock the old contacts in the plug connection.
5. Unlock the old contacts of the combination wire with the unlocking tool, and remove. Install new contacts of the repair wire in the same location.







6. -Plug connection X 2/2- (yellow).
7. Combination wire, rear left:
- Combination wire ABS and BVA in plug connection x 2/2 (yellow)
- br/wt in pin 1 (ABS)
- br/bl in pin 2 (ABS)
- br/bk in pin 3 (BVA)

8. Combination wire, rear right:
- br/wt in pin 6 (ABS)
- br/bl in pin 5 (ABS)
- br/bk in pin 4 (BVA)

9. The ground leads of the combination wires (brown) are the same on both right and left. Connection point No. 44 as shown in circuit diagram.
- Strip 10 mm of insulation off the wires.
- Push on heat-shrinking tube.
- Using a crimp connector, join brown wire of combination wire to brown wire of rear-end wiring harness
- Shrink heat-shrinking tube with a hot-air gun so that wires are watertight.

10. Brake pad wear indicator wires of the combination wire (brown/green) are identical on the left and right sides. Connection point No. 43 as shown in circuit diagram.
- Strip 10 mm of wire.
- Push on heat-shrinking tube.
- Using a crimp connector, join brown/green wire of combination wire to brown/green wire of rear-end wiring harness.
- Shrink heat-shrinking tube with a hot-air gun so that wires are watertight.

11. Wind commercially available PVC tape around wires.