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

1. Turn ON the ignition, with the engine OFF.
2. Open and close all of the doors.
3. Turn the courtesy lamp switch ON and OFF.

Do the courtesy lamps operate properly?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

1. Turn OFF the ignition.
2. Install a scan tool.
3. Turn OFF the courtesy lamp switch.
4. Turn ON the ignition, with the engine OFF.
5. With a scan tool observe the Courtesy Switch parameter in the body control module (BCM) Inputs data list.

Does the scan tool display an OFF status?

Go to Step 4

Go to Step 6

With a scan tool, observe the Auxiliary Lighting parameter in the BCM Inputs data list.

Does the scan tool display an OFF status?

Go to Step 5

Go to Step 7

1. Close all of the doors.
2. With a scan tool observe all of the Dome/Buzzer Sw. parameters in the driver door module (DDM) Inputs data list.

Does the scan tool display an OFF status for all doors?

Go to Step 12

Go to Step 8

1. Turn OFF the ignition.
2. Disconnect the headlamp switch.
3. Turn ON the ignition, with the engine OFF.
4. With a scan tool, observe the Courtesy Switch parameter in the BCM Inputs data list.

Does the scan tool display an OFF status?

Go to Step 13

Go to Step 9

1. Turn OFF the ignition.
2. Disconnect the remote control door lock receiver (RCDLR) module.
3. Turn ON the ignition, with the engine OFF.
4. With a scan tool observe the Auxiliary Lighting parameter in the BCM Inputs data list.

Does the scan tool display an OFF status?

Go to Step 17

Go to Step 10

1. Turn OFF the ignition.
2. Disconnect the inoperative door lock actuator.
3. Turn ON the ignition, with the engine OFF.

Does the scan tool display OFF for the inoperative door Dome/Buzzer Switch input?

Go to Step 14

Go to Step 11

Test the courtesy lamp switch signal circuit 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 23

Go to Step 16

Test the courtesy lamp relay control circuit 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 23

Go to Step 16

Test the inoperative door lock actuator door latch switch signal circuit 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 23

Go to Step 15

Test the courtesy lamp low control circuit and a short to ground. 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

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 23

Go to Step 18

Inspect for poor connections at the harness connector of the inoperative door lock actuator. 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

Inspect for poor connections at the harness connector of the inoperative door 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 23

Go to Step 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 23

Go to Step 21

Inspect for poor connections at the harness connector of the RCDLR 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 23

Go to Step 22

Replace the headlamp switch assembly. Refer to Headlamp Switch Replacement .

Did you complete the replacement?

Go to Step 23

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Replace the inoperative door lock actuator. Refer to Front Side Door Latch Replacement or Rear Side Door Latch Replacement in Doors.

Did you complete the replacement?

Go to Step 23

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Replace the inoperative door control module. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.

Did you complete the replacement?

Go to Step 23

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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

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Replace the RCDLR module. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.

Did you complete the replacement?

Go to Step 23

--

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2