Circuit/System Testing
- Ignition OFF, disconnect the appropriate harness connector at the appropriate inoperative lamp listed below:
- E13L Headlamp Assembly - Left
- E13R Headlamp Assembly - Right
- E43L Tail Lamp - Left
- E43R Tail Lamp - Right
- E98 Light cluster - rear
- Test for less than 5 Ω between the appropriate ground circuit harness connector terminal listed below and ground.
- E13L Headlamp Assembly - Left terminal 1
- E13R Headlamp Assembly - Right terminal 1
- E43L Tail Lamp - Left connection 3
- E43R Tail Lamp - Right connection 3
- E98 Light cluster - rear connection 1
- If greater than the specified range, test the ground circuit for an open circuit/high resistance.
- Connect a test lamp between the appropriate control circuit harness connector terminal listed below and ground:
- E13L Headlamp Assembly - Left terminal 4
- E13R Headlamp Assembly - Right terminal 4
- E43L Tail Lamp - Left connection 1
- E43R Tail Lamp - Right connection 1
- E98 Light cluster - rear connection 2
- Command the appropriate Park Lamp test with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states.
- If the test lamp is always ON, test the control circuit for a short to voltage. If the test shows that the circuit is normal, replace the body electronic module K9.
- If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the test shows that the circuit is normal, replace the body electronic module K9.
- If all circuits test normal, replace the appropriate inoperative lamp.