Circuit/System Testing
- Ignition OFF, disconnect the X1 harness connector at the rear differential clutch control module.
- Ignition ON, verify a test lamp does not illuminate between the control circuit terminals listed below and ground:
- terminal 5
- terminal 3
- If the test lamp illuminates, test the appropriate control circuit for a short to voltage.
- Ignition OFF, test for infinite resistance between the control circuit terminals listed below and ground:
- terminal 5
- terminal 3
- If less than the specified value, test the appropriate control circuit for a short to ground.
- Test for less than 5 ohms between the control circuit terminal 5 and control circuit terminal 3.
- If greater than the specified range, test both control circuits for an open/high resistance. If the circuits test normal, replace the differential clutch drum assembly.
- If all circuits test normal, replace the rear differential clutch control module.