Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the Lighting Systems Diagnostic System Check? | -- | Go to Step 2 | |
2 | Verify that the instrument cluster illumination lamps do not dim. Do the instrument cluster illumination lamps operate normally? | -- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Are all of the other dimmable instrument panel component lamps operating correctly? | -- | Go to Step 7 | Go to Step 4 |
4 | Remove the ILLUM fuse 12 in the IP Fuse Block. Do the affected lamps remain on? | -- | Go to Step 5 | Go to Step 8 |
5 | Test CKT 1220 (GRY) for short to voltage. Refer to Circuit Testing in Wiring Systems. Was a problem found? | -- | Go to Step 6 | Go to Step 7 |
6 | Repair the short to voltage in CKT 1220 (GRY). Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 11 | -- |
7 | Replace the Instrument Cluster. Refer to Instrument Cluster Replacement in Instrument Panel, Gauges and Console. Is the repair complete? | -- | Go to Step 11 | -- |
8 | Remove the IP Dimmer Switch. Do the affected lamps remain on? | -- | Go to Step 9 | Go to Step 10 |
9 | Repair the short to voltage in CKT 44 (DK GRN). Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 11 | -- |
10 | Replace the IP Dimmer Switch. Is the repair complete? | -- | Go to Step 11 | -- |
11 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 3 |
