Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Interior Lights Dimming Schematics Connector End View Reference: Master Electrical Component Listin Wiring Systems | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
2 |
Are all the I/P lamps on? | Go to Step 3 | Go to Step 5 |
3 | Are all of the class 2 dimming lamps inoperative? | Go to Step 17 | Go to Step 4 |
4 | Is one of the class 2 dimming lamp inoperative? | Go to Step 20 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems |
5 | Are all of the instrument panel lamps inoperative? | Go to Step 13 | Go to Step 6 |
6 | Are any of the steering wheel control lamps inoperative? | Go to Step 7 | Go to Step 15 |
7 | Is one steering wheel control switch illuminated? | Go to Step 9 | Go to Step 8 |
8 |
Does the test lamp illuminate a each supply circuit? | Go to Step 11 | Go to Step 10 |
9 |
Does the test lamp illuminate? | Go to Step 11 | Go to Step 10 |
10 | Test for a high resistance or an open in the I/P lamp supply voltage circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 23 | Go to Step 16 |
11 | Test for a high resistance or an open in the I/P lamp ground circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 23 | Go to Step 16 |
12 |
Do the instrument panel lamps turn on? | Go to Step 21 | Go to Step 22 |
13 | Inspect the instrument panel lamps dimming control circuit for a short to battery positive voltage. 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 |
14 | Inspect the I/P dimming reference voltage circuit and the I/P dimming return circuit for a short to battery positive. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 23 | Go to Step 12 |
15 | Inspect for a high resistance or an open in the inoperative instrument panel lamp supply voltage circuit or the ground circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 23 | Go to Step 20 |
16 | Inspect for a poor connection at the harness connector of the steering wheel control switches. 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 23 | Go to Step 19 |
17 | Test for a short to ground poor connection or an open in the CHMSL/Backup fuse circuit of the body control module (BCM). Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 23 | Go to Step 18 |
18 | Test for a short to ground in the I/P lamp supply voltage circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 23 | Go to Step 22 |
19 | Replace the inoperative switch. Refer to Steering Wheel Control Switch Assembly Replacement in Steering Wheel and Column. Did you complete the repair? | Go to Step 23 | -- |
20 | Replace the inoperative component or bulb. Did you complete the repair? | Go to Step 23 | -- |
21 | Replace the I/P dimming switch. Refer to Instrument Panel Lamp Dimmer Switch Replacement . Did you complete the repair? | Go to Step 23 | -- |
22 | Replace the BCM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? | Go to Step 23 | -- |
23 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 5 |
