Step | Action | Yes | No | ||||||
|---|---|---|---|---|---|---|---|---|---|
Schematic Reference: Interior Lights Schematics Connector End View Reference: Master Electrical Component List | |||||||||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |||||||
2 |
Do the courtesy lamps illuminate as expected? | Go to Testing for Intermittent Conditions and Poor Connections | 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 . 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 10 amp 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 . 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 . 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 . 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 . 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 . 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 . 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 . 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 . Did you complete the repair? | Go to Step 21 | -- | ||||||
17 | Replace the appropriate inoperative courtesy lamp bulb. Refer to the following: 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 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 | ||||||
