Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Exterior Lights Schematics Connector End View Reference: Lighting Systems Connector End Views | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
2 | Place the headlamp switch in the PARK or HEADLAMP position. Do the park lamps illuminate? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
3 |
Does the test lamp illuminate? | Go to Step 4 | Go to Step 12 |
4 | Connect a fused jumper wire between the tail lamp relay switch side voltage input circuit and switch side voltage output circuit. Do the park lamps illuminate? | Go to Step 6 | Go to Step 5 |
5 | Does the fuse in the jumper wire open? | Go to Step 13 | Go to Step 14 |
6 | Probe the tail lamp relay coil side voltage supply circuit with a test lamp that is connected to ground. Does the test lamp illuminate? | Go to Step 7 | Go to Step 15 |
7 |
Does the test lamp illuminate? | Go to Step 10 | Go to Step 8 |
8 |
Does the test lamp illuminate? | Go to Step 9 | Go to Step 16 |
9 | Connect a test lamp between the tail lamp relay coil side control circuit and the ground circuit at the headlamp switch connector. Does the test lamp illuminate? | Go to Step 11 | Go to Step 17 |
10 | Inspect for poor connections at the tail lamp relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 20 | Go to Step 18 |
11 | Inspect for poor connections at the headlamp switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 20 | Go to Step 19 |
12 | Repair an open or short to ground in the tail lamp relay switch side voltage supply circuit. Refer to Circuit Testing and Wiring Repairs . Did you complete the repair? | Go to Step 20 | -- |
13 | Repair a short to ground in the park lamps voltage supply circuit. Refer to Circuit Testing and Wiring Repairs . Did you complete the repair? | Go to Step 20 | -- |
14 | Repair an open in the park lamps voltage supply circuit. Refer to Circuit Testing and Wiring Repairs . Did you complete the repair? | Go to Step 20 | -- |
15 | Repair an open in the tail lamp relay coil side voltage supply circuit. Refer to Circuit Testing and Wiring Repairs . Did you complete the repair? | Go to Step 20 | -- |
16 | Repair an open in the tail lamp relay coil side control circuit. Refer to Circuit Testing and Wiring Repairs . Did you complete the repair? | Go to Step 20 | -- |
17 | Repair an open in the headlamp switch ground circuit. Refer to Circuit Testing and Wiring Repairs . Did you complete the repair? | Go to Step 20 | -- |
18 | Replace the tail lamp relay. Refer to Relay Replacement . Did you complete the replacement? | Go to Step 20 | -- |
19 | Replace the headlamp switch. Refer to Headlamp Switch Replacement . Did you complete the replacement? | Go to Step 20 | -- |
20 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
