Step | Action | Yes | No |
---|---|---|---|
Schematic Reference: Interior Lights Schematics | |||
1 | Did you perform the Lighting Diagnostic System Check? | Go to Step 2 | |
2 | Operate the courtesy lamps to verify the fault is present. Does the system operate normally? | Go to Testing for Electrical Intermittents in Wiring Systems | Go to Step 3 |
3 | Is only one lamp inoperative? | Go to Step 4 | Go to Step 6 |
4 | Test the courtesy lamps supply voltage circuit of the inoperative lamp a high resistance, an open, or a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 28 | Go to Step 5 |
5 | Test the ground circuit of the inoperative lamp 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 28 | Go to Step 15 |
6 |
Does the scan tool display the switch status as OFF? | Go to Step 8 | Go to Step 7 |
7 |
Does the scan tool display the switch status as OFF? | Go to Step 16 | Go to Step 14 |
8 |
Does the scan tool display the switch status as Active? | Go to Step 11 | Go to Step 9 |
9 |
Does the scan tool display the switch status as Active? | Go to Step 17 | Go to Step 10 |
10 |
Does the scan tool display the switch status as Active? | Go to Step 21 | Go to Step 13 |
11 |
Do the courtesy lamps light? | Go to Step 18 | Go to Step 12 |
12 |
Do the courtesy lamps light? | Go to Step 19 | Go to Step 20 |
13 | Test the door jamb switch signal circuit between the mini wedge and the body control module (BCM). Refer to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 28 | Go to Step 20 |
14 | Test the interior lamp defeat switch signal circuit of the BCM for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 28 | Go to Step 20 |
15 | Inspect for poor connections at the harness connector of the courtesy lamp. 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 28 | Go to Step 22 |
16 | 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 28 | Go to Step 23 |
17 | Inspect for poor connections at the harness connector of the mini wedge. 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 28 | Go to Step 24 |
18 | Inspect for poor connections at the harness connector of the courtesy lamp relay. 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 28 | Go to Step 25 |
19 | Inspect for poor connections at the harness connector of the inadvertent power relay. 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 28 | Go to Step 26 |
20 | Inspect for poor connections at the harness connector of the 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 28 | Go to Step 27 |
21 | Repair the open in the ground circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 28 | -- |
22 | Replace the inoperative courtesy lamp. Did you complete the repair? | Go to Step 28 | -- |
23 | Replace the headlamp and panel dimmer switch. Refer to Headlamp Switch Replacement . Did you complete the replacement? | Go to Step 28 | -- |
24 | Replace the appropriate mini wedge (door jamb switch). Refer to Front Side Door Lock Actuator Replacement in Doors. Did you complete the replacement? | Go to Step 28 | -- |
25 | Replace the courtesy lamp relay. Did you complete the replacement? | Go to Step 28 | -- |
26 | Replace the inadvertent power relay. Did you complete the replacement? | Go to Step 28 | -- |
27 |
Important: Perform the setup procedure for the body control module. Replace the body control module. Refer to Body Control Module Replacement in Body Control System. Did you complete the replacement? | Go to Step 28 | -- |
28 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
Step | Action | Value(s) | Yes | No |
---|---|---|---|---|
Schematic Reference: Interior Lights Schematics | ||||
1 | Did you perform the Lighting Diagnostic System Check? | Go to Step 2 | ||
2 | Operate the courtesy lamps to verify the fault is present. Does the system operate normally? | Go to Testing for Electrical Intermittents in Wiring Systems | Go to Step 3 | |
3 | Is only one lamp inoperative? | Go to Step 4 | Go to Step 6 | |
4 | Test the courtesy lamps PWM supply voltage circuit of the inoperative lamp for high resistance, an open, or a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 35 | Go to Step 5 | |
5 | Test the ground circuit of the inoperative lamp 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 35 | Go to Step 21 | |
6 |
Does the scan tool display the switch status as expected? | Go to Step 9 | Go to Step 7 | |
7 |
Does the scan tool display the switch status as OFF? | Go to Step 8 | Go to Step 20 | |
8 | Test the ground circuit to the headlamp switch for 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 35 | Go to Step 22 | |
9 |
Does the scan tool display ON? | Go to Step 11 | Go to Step 10 | |
10 | Test the courtesy lamps on signal circuit of the headlamp switch for a short to voltage, short to ground, 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 35 | Go to Step 22 | |
11 |
Does the scan tool display the switch status as Active? | Go to Step 14 | Go to Step 12 | |
12 |
Does the scan tool display the switch status as Active? | Go to Step 23 | Go to Step 13 | |
13 |
Does the scan tool display the switch status as Active? | Go to Step 27 | Go to Step 19 | |
14 | Test the courtesy lamps PWM supply voltage circuit of the courtesy lamps module for a high resistance, an open, or a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 35 | Go to Step 15 | |
15 |
Does the test lamp illuminate? | Go to Step 16 | Go to Step 18 | |
16 |
Does the voltage measure near the specified voltage? | 0 Volts | Go to Step 24 | Go to Step 17 |
17 | Test the courtesy lamps low control circuit of the courtesy lamps module for a high resistance, an open, or a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 35 | Go to Step 26 | |
18 |
Do the courtesy lamps light? | Go to Step 25 | Go to Step 28 | |
19 | Test the door jamb switch signal circuit between the mini wedge and the body control module (BCM). Refer to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 35 | Go to Step 26 | |
20 | Test the interior lamp defeat switch signal circuit of the BCM for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 35 | Go to Step 26 | |
21 | Inspect for poor connections at the harness connector of the courtesy lamp. 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 35 | Go to Step 29 | |
22 | 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 35 | Go to Step 30a | |
23 | Inspect for poor connections at the harness connector of the mini wedge. 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 35 | Go to Step 31 | |
24 | Inspect for poor connections at the harness connector of the courtesy lamp module. 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 35 | Go to Step 32 | |
25 | Inspect for poor connections at the harness connector of the inadvertent power relay. 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 35 | Go to Step 33 | |
26 | Inspect for poor connections at the harness connector of the 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 35 | Go to Step 34 | |
27 | Repair the open in the ground circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 35 | -- | |
28 | Repair the inadvertent power supply voltage or ground circuits of the courtesy lamp module. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 35 | -- | |
29 | Replace the inoperative courtesy lamp. Did you complete the repair? | Go to Step 35 | -- | |
30 | Replace the headlamp and panel dimmer switch. Refer to Headlamp Switch Replacement . Did you complete the replacement? | Go to Step 35 | -- | |
31 | Replace the appropriate mini wedge, door jamb switch. Refer to Front Side Door Lock Actuator Replacement in Doors. Did you complete the replacement? | Go to Step 35 | -- | |
32 | Replace the courtesy lamp module. Refer to Lamp Control Module Replacement . Did you complete the replacement? | Go to Step 35 | -- | |
33 | Replace the inadvertent power relay. Did you complete the replacement? | Go to Step 35 | -- | |
34 |
Important: Perform the setup procedure for the body control module. Replace the body control module. Refer to Body Control Module Replacement in Body Control System. Did you complete the replacement? | Go to Step 35 | -- | |
35 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |