Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Exterior Lights Schematics Connector End View Reference: Lighting Systems Connector End Views or Computer/Integrating Systems Connector End Views in Computer/Integrating Systems | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
2 |
Do either the marker, license or tail lamps remain illuminated? | Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems |
3 | With a scan tool, observe the Park Lamp parameter in the dash integration module (DIM) inputs data list. Does the scan tool indicate that the Park Lamp parameter is off? | Go to Step 4 | Go to Step 7 |
4 | With a scan tool, observe the Park Lamp Relay Output parameter in the DIM outputs data list. Does the scan tool indicate that the Park Lamp Relay Output parameter is off? | Go to Step 5 | Go to Step 15 |
5 |
Did the lamps turn off? | Go to Step 6 | Go to Step 8 |
6 | Connect a test lamp between the supply voltage circuit of the PRK LP relay coil and the control circuit of the PRK LP relay. Does the test lamp illuminate? | Go to Step 12 | Go to Step 14 |
7 |
Does the scan tool indicate that the Park Lamp parameter is off? | Go to Step 13 | Go to Step 11 |
8 |
Does the test lamp illuminate? | Go to Step 19 | Go to Step 9 |
9 |
Do any of the lamps powered by the LP PK R fuse remain on? | Go to Step 16 | Go to Step 10 |
10 | Disconnect the LP PK L fuse. Do any of the lamps powered by the LP PK L fuse remain on? | Go to Step 17 | Go to Step 18 |
11 | Test for a short to ground in the park lamp switch on signal circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 23 | Go to Step 15 |
12 | Test for a short to ground in the park lamp relay control circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 23 | Go to Step 15 |
13 | Inspect for poor connections at the harness connector of the headlamp switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 23 | Go to Step 20 |
14 | Inspect for poor connections at the PRK LP relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 23 | Go to Step 21 |
15 | Inspect for poor connections at the harness connector of the DIM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 23 | Go to Step 22 |
16 | Repair a short to voltage in the right park lamp supply voltage circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 23 | -- |
17 | Repair a short to voltage in the left park lamp supply voltage circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 23 | -- |
18 | Repair a short to voltage in the instrument panel lamp fuse supply voltage 1 circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 23 | -- |
19 | Repair a short to battery positive voltage in the backlight lamps control circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 23 | -- |
20 | Replace the headlamp switch. Refer to Headlamp Switch Replacement . Did you complete the replacement? | Go to Step 23 | -- |
21 | Replace the PRK LP relay. Refer to Relay Replacement in Wiring Systems. Did you complete the replacement? | Go to Step 23 | -- |
22 | Replace the DIM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? | Go to Step 23 | -- |
23 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
