Park, License, and Tail Lamps Always On
Park, License, and Tail Lamps Always On
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Exterior Lights Schematics Connector End View Reference: Master Electrical Component List |
|||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle |
| 2 |
|
Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
| 3 | Disconnect the lamp switch assembly. Are the park lamps illuminated? |
Go to Step 4 | Go to Step 11 |
| 4 | Test for a short to ground in the park lamp ON signal circuit. Refer to Circuit Testing
and Wiring Repairs
. Did you find and correct the condition? |
Go to Step 13 | Go to Step 5 |
| 5 | Test for the following in the exterior lamps OFF input circuit:
Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? |
Go to Step 13 | Go to Step 6 |
| 6 | The PK LP relay is located on the reverse side of the I/P fuse block. Remove the PK LP relay. Do the park lamps turn OFF? |
Go to Step 7 | Go to Step 10 |
| 7 |
|
Go to Step 8 | Go to Step 9 |
| 8 | Test for a short to ground in the park lamp relay control circuit. Refer to Circuit Testing
and Wiring Repairs
. Did you find and correct the condition? |
Go to Step 13 | Go to Step 12 |
| 9 | Replace the PK LP relay. Refer to Relay Replacement (Attached to Wire Harness)
or Relay Replacement (Within an Electrical Center)
. Did you complete the replacement? |
Go to Step 13 | - |
| 10 | Repair a short to battery positive voltage in the park lamp voltage supply circuit. Refer to Circuit Testing
and Wiring Repairs
. Did you complete the repair? |
Go to Step 13 | - |
| 11 | Replace the lamp switch assembly. Refer to Headlamp Switch Replacement (Impala) or Headlamp Switch Replacement (Monte Carlo) . Did you complete the repair? |
Go to Step 13 | - |
| 12 | Replace the body control module (BCM). Refer to Control Module References
for replacement, setup, and programming. Did you complete the replacement? |
Go to Step 13 | - |
| 13 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 3 |