Rear Wiper/Washer Switch Malfunction

Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the S82 Windshield Wiper/Washer Switch. It may take up to 11 min for all vehicle systems to power down.
Test for less than 10 Ω between the low reference circuit terminal 2 and ground.
- If 10 Ω or greater
1. Ignition OFF.
2. Test for less than 2 Ω in the low reference circuit end to end.
  - If 2 Ω or greater, repair the open/high resistance in the circuit.
  - If less than 2 Ω, replace the K9 Body Control Module.
- If less than 10 Ω
Ignition ON.
Test for greater than 8 V between the signal circuit terminal 4 and ground.
- If less than 8 V
1. Ignition OFF, disconnect the harness connector at the K9 Body Control Module.
2. Test for infinite resistance between the signal circuit and ground
  - If less than infinite resistance, repair the short to ground on the circuit.
  - If infinite resistance
3. Test for less than 2 Ω in the signal circuit end to end.
  - If 2 Ω or greater, repair the open/high resistance in the circuit.
  - If less than 2 Ω, replace the K9 Body Control Module.
- If 8 V or greater
Ignition OFF, disconnect the X2 harness connector at the K9 Body Control Module, ignition ON.
Test for less than 1 V between the S82 Windshield Wiper/Washer Switch signal circuit terminal 4 and ground.
- If 1 V or greater
  Repair the short to voltage on the circuit.
- If less than 1 V
Test or replace the S82 Windshield Wiper/Washer Switch.