Step | Action | Yes | No | ||||||
|---|---|---|---|---|---|---|---|---|---|
DEFINITION: One or all of the following park lamps are inoperative: taillamps, headlamps position lamps. license lamps | |||||||||
1 | Did you perform the Lighting System Diagnostic System Check? | Go to Step 2 | |||||||
2 | Place the headlamp/IP Dimmer switch to the PARK position. Are the park lamps operating properly? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 | ||||||
3 | Are all of the park lamps inoperative? | Go to Step 7 | Go to Step 4 | ||||||
4 | Is only one of the park lamps inoperative? | Go to Step 10 | Go to Step 5 | ||||||
5 | Determine which of the following park lamps are inoperative.
Are the taillamps inoperative? | Go to Step 11 | Go to Step 6 | ||||||
6 | Determine which of the following park lamps are inoperative.
Are the headlamp position lamps inoperative? | Go to Step 12 | Go to Step 13 | ||||||
7 | Inspect the PARK LP fuse. Is the fuse open? | Go to Step 20 | Go to Step 8 | ||||||
8 |
Did the test lamp light? | Go to Step 19 | Go to Step 9 | ||||||
9 | Use a test light in order to backprobe the headlamp/IP lamp dimmer switch harness connector between terminal O and ground. Did the test lamp light? | Go to Step 17 | Go to Step 18 | ||||||
10 | Test for an open or a high resistance in the inoperative park lamp power supply circuit or ground supply circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition. | Go to Step 22 | Go to Step 21 | ||||||
11 | Test for an open, high resistance, or short to ground in the tailamps power supply circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition. | Go to Step 22 | Go to Step 14 | ||||||
12 | Test for an open or high resistance in the headlamp position lamps power supply circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition. | Go to Step 22 | Go to Step 15 | ||||||
13 | Test for an open or high resistance in the rear license lamps power supply circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition. | Go to Step 22 | Go to Step 16 | ||||||
14 | Repair an open or high resistance in the tailamps ground supply circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Is the repair complete? | Go to Step 22 | -- | ||||||
15 | Repair an open or high resistance in the headlamp position lamps ground supply circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Is the repair complete? | Go to Step 22 | -- | ||||||
16 | Repair an open or high resistance in the rear license lamps ground supply circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Is the repair complete? | Go to Step 22 | -- | ||||||
17 | Replace the headlamp/IP lamp dimmer switch. Refer to Headlamp Switch Replacement . Is the repair complete? | Go to Step 22 | -- | ||||||
18 | Repair an open or high resistance in the headlamp and IP lamp dimmer switch battery positive voltage circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Is the repair complete? | Go to Step 22 | -- | ||||||
19 | Repair an open or high resistance in the park lamp supply voltage circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Is the repair complete? | Go to Step 22 | -- | ||||||
20 | Repair a short to ground in battery positive voltage circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Is the repair complete? | Go to Step 22 | -- | ||||||
21 | Replace the inoperative parklamp. Refer to the appropriate procedure.
Is the repair complete? | Go to Step 22 | |||||||
22 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 | ||||||
