Circuit/System Testing

Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the S70R Steering Wheel Controls Switch - Right, ignition ON.
Test for 11.8-12.2 V between the reference voltage circuit terminal 1 and ground.
- If less than 11.8 V
1. Ignition OFF, disconnect the harness connector at the K9 Body Control Module.
2. Test for infinite resistance between the reference voltage 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 reference voltage 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 greater than 12.2 V
1. Ignition OFF, disconnect the harness connector at the K9 Body Control Module, ignition ON.
2. Test for less than 1 V between the reference voltage circuit and ground.
  - If 1 V or greater, repair the short to voltage on the circuit.
  - If less than 1 V, replace the K9 Body Control Module.
- If between 11.8-12.2 V
Test for 11.8-12.2 V between the reference voltage circuit terminal 1 and signal circuit terminal 2.
- If not between 11.8-12.2 V
1. Ignition OFF, disconnect the harness connector at the K9 Body Control Module.
2. Test for less than 1 V between the signal circuit and ground.
  - If 1 V or greater, repair the short to voltage on the circuit.
  - If less than 1 V
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 between 11.8-12.2 V
Test or replace the S70R Steering Wheel Controls Switch - Right.