Tail, Marker and License Lamps Inoperative
Tail, Marker and License Lamps Inoperative
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Exterior Lights Schematics Connector End View Reference: Lighting Systems Connector End Views or Data Communication Connector End Views |
|||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle |
| 2 | Verify that the tail, marker and license lamps are inoperative. Do the tail, marker and license lamps operate normally? |
Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
| 3 |
|
Go to Step 8 | Go to Step 4 |
| 4 | Use the scan tool to check the body control module (BCM) park lamp switch input data. Does the scan tool indicate a park lamps ON request signal? |
Go to Step 7 | Go to Step 5 |
| 5 | Test for an open or high resistance in the park lamp switch signal circuit. Refer to Circuit Testing
and Wiring Repairs
. Did you find and correct the condition? |
Go to Step 11 | Go to Step 6 |
| 6 | Inspect for poor connections at the harness connector of the headlamp switch. Refer to Circuit Testing
and Wiring Repairs
. Did you find and correct the condition? |
Go to Step 11 | Go to Step 9 |
| 7 | Inspect for poor connections at the harness connector of the BCM. Refer to Circuit Testing
and Wiring Repairs
. Did you find and correct the condition? |
Go to Step 11 | Go to Step 10 |
| 8 | Replace the park lamp relay. Refer to Relay Replacement (Attached to Wire Harness)
or Relay Replacement (Within an Electrical Center)
. Did you complete the repair? |
Go to Step 11 | - |
| 9 | Replace the headlamp switch. Refer to Headlamp Switch Replacement . Did you complete the repair? |
Go to Step 11 | - |
| 10 | Replace the BCM. Refer to Control Module References
for replacement, setup and programming. Did you complete the replacement? |
Go to Step 11 | - |
| 11 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 3 |