Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Exterior Lights Schematics | |||
1 | Did you perform the Lighting Diagnostic System Check? | Go to Step 2 | |
2 | Place the headlamp and panel dimmer switch in the ON position. Does the system operate normally? | Go to Testing for Electrical Intermittents in Wiring Systems | Go to Step 3 |
3 | Are all park lamps inoperative? | Go to Step 7 | Go to Step 4 |
4 | Is only one lamp inoperative? | Go to Step 5 | Go to Step 6 |
5 | Is it a rear lamp that is inoperative? | Go to Step 12 | Go to Step 9 |
6 | Are both front lamps inoperative? | Go to Step 11 | Go to Step 17 |
7 | Test the battery positive voltage circuit of the headlamp and panel dimmer switch for high resistance, an open, or a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 21 | Go to Step 8 |
8 | Test the park lamp switch signal circuit of the headlamp and panel dimmer switch for high resistance, an open, or a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 21 | Go to Step 16 |
9 | Remove and inspect the inoperative lamp. Is the lamp OK? | Go to Step 10 | Go to Step 14 |
10 | Test the front park lamp supply voltage circuit of the inoperative lamp for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 21 | Go to Step 17 |
11 | Test the front park lamp supply voltage circuit of the engine wiring harness junction block for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 21 | Go to Step 17 |
12 | Remove and inspect the inoperative lamp Is the lamp OK? | Go to Step 13 | Go to Step 15 |
13 | Test the rear park lamps supply voltage circuit of the inoperative lamp for high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 21 | Go to Step 17 |
14 | Inspect for poor connections at the harness connector of the front bulb. 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 21 | Go to Step 18 |
15 | Inspect for poor connections at the harness connector of the rear bulb. 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 21 | Go to Step 19 |
16 | Inspect for poor connections at the harness connector of the headlamp and panel dimmer 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 21 | Go to Step 20 |
17 | Repair the park lamps ground circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 21 | -- |
18 | Replace the parking lamp. Refer to Parking and Turn Signal Lamp Replacement . Did you complete the replacement? | Go to Step 21 | -- |
19 | Replace the parking lamp. Refer to Tail/Turn Signal Lamp Replacement . Did you complete the replacement? | Go to Step 21 | -- |
20 | Replace the headlamp and panel dimmer switch. Refer to Headlamp Switch Replacement . Did you complete the replacement? | Go to Step 21 | -- |
21 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
