Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Exterior Lights Schematics | |||
1 | Did you perform the Lighting System Diagnostic System Check? | Go to Step 2 | |
2 | Place the headlamp switch in the PARK position. Do the park lamps illuminate? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Is only one lamp inoperative? | Go to Step 4 | Go to Step 5 |
4 |
Does the test lamp illuminate? | Go to Step 12 | Go to Step 13 |
5 | Are all of the park lamps inoperative? | Go to Step 6 | Go to Step 7 |
6 |
Does the scan tool display the Park Lamp Input parameter as On? | Go to Step 14 | Go to Step 10 |
7 | Are the front park lamps inoperative? | Go to Step 8 | Go to Step 9 |
8 | Test for an open or high resistance in the park lamp supply voltage circuit between splice 216 and the front park lamps. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 18 | Go to Step 15 |
9 | Test for an open or high resistance in the park lamp supply voltage circuit between splice 216 and the rear park lamps. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 18 | Go to Step 16 |
10 | Test the park lamp supply voltage circuit for an open or high resistance between the headlamp switch and splice 216. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 18 | Go to Step 11 |
11 | 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 18 | Go to Step 17 |
12 | Repair an open or high resistance in the ground circuit of the inoperative lamp. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 18 | -- |
13 | Repair an open, high resistance, or short to ground in the park lamp supply voltage circuit of the inoperative lamp. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 18 | -- |
14 | Repair an open or high resistance in the park lamp supply voltage circuit at splice 216. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 18 | -- |
15 | Repair an open or high resistance in the ground circuit of the front park lamps. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 18 | -- |
16 | Repair an open or high resistance in the ground circuit of the rear park lamps. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 18 | -- |
17 | Replace the headlamp switch. Refer to Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle in Steering Wheel and Column - Standard or Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle in Steering Wheel and Column - Tilt. Did you complete the repair? | Go to Step 18 | -- |
18 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
