Diagnostic Procedure
DIAGNOSTIC INFORMATION AND PROCEDURES CHART (PANEL DIMMING INOPERATIVE)
| TEST | ACTION | APPLICABILITY |
|---|---|---|
| 1 |
NOTE:
Ensure that the Park/Headlamps operate properly before continuing with this test.
NOTE:
Ensure that other Instrument Cluster functions operate properly before continuing with this test. Turn the ignition on.With the DRBIII®, select Body, Electro/Mech Cluster, read DTCs.Does the DRBIII® display PANEL DIMMER OPEN?Yes --> Refer to PANEL DIMMER OPEN .Perform BODY VERIFICATION TEST - VER 1 .No --> Go To 2 |
All |
| 2 | Turn the ignition off. Disconnect the Instrument Cluster C1 harness connector. Check connectors - Clean/repair as necessary. Turn the Park lamps on. Measure the voltage between the Park Lamp Feed circuit and ground. Is the voltage above 10.5 volts? Yes --> Go To 3 No --> Repair the Park Lamp Feed circuit for an open. Perform BODY VERIFICATION TEST - VER 1 . |
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| 3 | Turn the ignition off. Disconnect the Instrument Cluster C1 harness connector. Check connectors - Clean/repair as necessary. Remove and inspect the inoperative illumination bulb(s). Is the illumination bulb filament open? Yes --> Replace the Instrument Cluster Illumination Bulb(s) in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1 . No --> Replace the Instrument Cluster in accordance with the Service Information. Perform BODY VERIFICATION TEST - VER 1 . |
All |