Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Interior Lights Schematics | |||
1 | Did you review the Lighting System Description and Operation and perform the necessary inspections? | Go to Step 2 | |
2 | Verify the dome lamps are inoperative. Does the system operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Test C3 cavity 4 of the instrument panel fuse block for battery positive voltage. Refer to Circuit Testing in Wiring Systems. Is voltage present? | Go to Step 7 | Go to Step 4 |
4 | Test C4 cavity 7 of the instrument panel fuse block for battery positive voltage. Refer to Circuit Testing in Wiring Systems. Is voltage present? | Go to Step 5 | Go to Step 6 |
5 | Replace the instrument panel wiring harness. Refer to Instrument Panel Wiring Harness Replacement in Instrument Panel, Gages and Console. Did you complete the replacement? | Go to Step 20 | -- |
6 | Repair open or high resistance in the dome lamp supply voltage circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 20 | -- |
7 | Test cavity 2 of the front dome lamp for battery positive voltage. Refer to Circuit Testing in Wiring Systems. Is voltage present? | Go to Step 9 | Go to Step 8 |
8 | Repair open or high resistance in the Dome Lamp supply voltage circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 20 | -- |
9 | With 1 of the doors open, test C2 cavity 7 of the left instrument panel junction block for continuity to ground. Refer to Circuit Testing in Wiring Systems. Is a ground present? | Go to Step 11 | Go to Step 10 |
10 | Replace the instrument panel wiring harness. Refer to Wiring Repairs in Wiring Systems. Did you complete the replacement? | Go to Step 20 | -- |
11 | With 1 of the doors open, test cavity 1 of the instrument panel lamp dimmer for continuity to ground. Refer to Circuit Testing in Wiring Systems. Is a ground present? | Go to Step 13 | Go to Step 12 |
12 | Repair the open in the ground circuit between cavity 1 of the instrument panel dimmer and C2 cavity 7 of the left instrument panel junction block. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 20 | -- |
13 | Test cavity 8 of the instrument panel lamp dimmer for continuity to ground. Refer to Circuit Testing in Wiring Systems. Is a ground present? | Go to Step 14 | Go to Step 15 |
14 | Test C7 cavity 3 of the instrument panel fuse block for continuity to ground. Refer to Circuit Testing in Wiring Systems. Is a ground present? | Go to Step 16 | Go to Step 17 |
15 | Replace the instrument panel dimmer switch. Refer to Instrument Panel Lamp Dimmer Switch Replacement . Did you complete the repair? | Go to Step 20 | -- |
16 | Test C3 cavity 6 of the instrument panel fuse block for continuity to ground. Refer to Circuit Testing in Wiring Systems. Is a ground present? | Go to Step 19 | Go to Step 10 |
17 | Repair the open or high resistance between C7 cavity 3 of the instrument panel fuse block and cavity 8 of the instrument panel lamp dimmer. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 20 | -- |
18 | Repair open or high resistance between cavity 1 of the dome lamp and C3 cavity 6 of the instrument panel fuse block. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 20 | -- |
19 | Repair open or high resistance between C3 cavity 6 of the instrument panel fuse block and cavity 1 of the dome lamp assembly. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | 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 |
