Circuit/System Testing

Ignition OFF, disconnect the X2 and X4 connectors at the K9 Body Control Module, Ignition ON.
Test for less than 1 V between signal circuit terminal 13 X2 and ground.
- If 1 V or greater
  Repair the short to voltage on circuit 5737.
- Go to next step: If less than 1 V
Ignition OFF
Test for infinite resistance between signal circuit terminal 13 X2 and ground.
- If less than infinite resistance
1. Test circuit 5737 for a short to ground.
  - If a short to ground is found, repair the fault on the circuit.
  - Go to next step: If a short to ground is not found
2. Replace the S70L Cruise Control Switch.
- Go to next step: If infinite resistance
Test for 14.0 k to 14.5 kΩ between signal circuit terminal 13 X2 and low reference circuit terminal 3 X4.
- If not between 14.0 k and 14.5 kΩ
1. Test circuit 5737 for an open/high resistance.
  - If an open/high resistance is found, repair the fault on the circuit.
  - Go to next step: If an open/high resistance is not found
2. Test circuit 1449 for an open/high resistance.
  - If an open/high resistance is found, repair the fault on the circuit.
  - Go to next step: If an open/high resistance is not found
3. Replace the S70L Cruise Control Switch.
- Go to next step: If between 14.0 k and 14.5 kΩ
Test for 3.3 k to 3.7 kΩ between signal circuit terminal 13 X2 and low reference circuit terminal 3 X4 while pressing and holding the adaptive cruise control gap switch.
- If not between 3.3 k and 3.7 kΩ
  Replace the S70L Cruise Control Switch.
- Go to next step: If between 3.3 k and 3.7 kΩ
Replace the K9 Body Control Module.