Step | Action | Yes | No | ||||||
|---|---|---|---|---|---|---|---|---|---|
Schematic Reference: Interior Lights Schematics Connector End View Reference: Master Electrical Component List in 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 |
Do the courtesy lamps illuminate as expected? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 | ||||||
3 | Is only one lamp inoperative? | Go to Step 4 | Go to Step 5 | ||||||
4 | Test the power and ground circuits of the inoperative courtesy lamp for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 21 | Go to Step 17 | ||||||
5 | Are all courtesy lamps inoperative at all times? | Go to Step 6 | Go to Step 9 | ||||||
6 | Is the INT/LAMP fuse in the instrument panel (I/P) fuse block open? | Go to Step 7 | Go to Step 8 | ||||||
7 | Test the following circuits for a short to ground:
Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the concern? | Go to Step 21 | Go to Step 14 | ||||||
8 | Test the courtesy lamp high control and battery positive voltage (from the INT/LAMP fuse) circuits for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the concern? | Go to Step 21 | Go to Step 14 | ||||||
9 | Are the courtesy lamps inoperative form the I/P switch? | Go to Step 10 | Go to Step 11 | ||||||
10 |
Do the courtesy lamps illuminate? | Go to Step 15 | Go to Step 16 | ||||||
11 | Test the courtesy lamps switch off signal circuit of the headlamp switch for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the concern? | Go to Step 21 | Go to Step 12 | ||||||
12 | Test the door/liftgate open switch signal circuit and ground circuit of the switch that does not illuminate the courtesy lamps properly for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 21 | Go to Step 13 | ||||||
13 | Inspect for a poor connections at the harness connector of the inoperative door lock switch. 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 21 | Go to Step 14 | ||||||
14 | Inspect for poor connections at the harness connector of the body control module (BCM). 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 21 | Go to Step 16 | ||||||
15 | Inspect for poor connections at the harness connector of the headlamp switch. 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 21 | -- | ||||||
16 | Repair the high resistance or open in the courtesy lamps switch on signal circuit of the headlamp switch. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 21 | -- | ||||||
17 | Replace the inoperative courtesy lamp bulb. Did you complete the replacement? | Go to Step 21 | -- | ||||||
18 | Replace the inoperative switch. Refer to the following:
Did you complete the replacement? | Go to Step 21 | -- | ||||||
19 | Replace the I/P dimmer switch. Refer to Headlamp Switch Replacement . Did you complete the repair? | Go to Step 21 | -- | ||||||
20 | 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 21 | -- | ||||||
21 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 | ||||||
