Schematic Reference: Interior Lights Schematics and Door Control Module Schematics and Door Lock/Indicator Schematics in Doors.

Connector End View Reference: Master Electrical Component List in Wiring Systems

1

Did you perform the Lighting Systems Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Lighting Systems

1. Close all the doors and the rear compartment lid.
2. Turn OFF the courtesy lamp switch.
3. Turn ON the ignition, with the engine OFF.

Are the courtesy lamps ON?

Go to Step 3

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

1. Turn OFF the ignition.
2. Install a scan tool.
3. Turn ON the ignition, with the engine OFF.
4. Close all the doors and the rear compartment lid.
5. With a scan tool, observe the Door Jamb Sw. parameters in each of the door modules inputs data list.
6. With a scan tool, observe the Liftgate Lighting Switc parameter in the rear integration module (RIM) inputs data list.

Does the scan tool indicate that the Door Jamb Sw. and Liftgate Lighting Switc parameters are all OFF?

Go to Step 4

Go to Step 6

1. Ensure the Courtesy Lamp Switch is OFF.
2. With a scan tool, observe the Courtesy Lamp Switch parameter in the dash integration module (DIM) Inputs data list.

Does the scan tool display OFF?

Go to Step 9

Go to Step 5

1. Turn OFF the ignition.
2. Disconnect the I/P dimmer switch.
3. Turn ON the ignition, with the engine OFF.
4. With a scan tool, observe the Courtesy Lamp Switch parameter.

Does the scan tool display OFF?

Go to Step 10

Go to Step 8

1. Turn OFF the ignition.
2. Disconnect the inoperative door lock actuator or door latch assembly - liftgate.
3. Turn on the ignition, with the engine OFF.
4. With a scan tool, observe the appropriate Door Jamb Switch or Liftgate Lighting Switc parameter.

Does the scan tool indicate that the Door Jamb Sw. or Liftgate Lighting Switc parameter is OFF?

Go to Step 11

Go to Step 7

Test the appropriate door open switch signal circuit of the inoperative door lock actuator or the rear compartment lid ajar switch circuit of the door latch assembly - liftgate 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 20

Go to Step 12

Test the courtesy lamp on 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 20

Go to Step 13

Test the courtesy lamp 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 20

Go to Step 14

Inspect for poor connections at the harness connector of the I/P dimmer 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 20

Go to Step 15

Inspect for poor connections at the harness connector of the appropriate door lock actuator or door latch assembly - liftgate. 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 20

Go to Step 16

Inspect for poor connections at the harness connector of the appropriate door module or RIM. 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 20

Go to Step 17

Inspect for poor connections at the harness connector of the DIM. 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 20

Go to Step 18

Inspect for poor connections at the harness connector of the RIM. 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 20

Go to Step 19

Replace I/P dimmer switch. Refer to Instrument Panel Lamp Dimmer Switch Replacement .

Did you complete the replacement?

Go to Step 20

--

Replace the appropriate door lock actuator or door latch assembly - liftgate. Refer to Front Side Door Latch Replacement or Rear Side Door Latch Replacement in Doors and Liftgate Latch Replacement in Body Rear End.

Did you complete the replacement?

Go to Step 20

--

Important:: Perform the setup procedure for the RIM.

Replace the inoperative door module or the RIM. Refer to Door Control Module Replacement in Doors or Rear Integration Body Control Module Replacement in Body Control System.

Did you complete the replacement?

Go to Step 20

--

Important:: Perform the setup procedure for the DIM.

Replace the DIM. Refer to Dash Integration Module Replacement in Body Control System.

Did you complete the replacement?

Go to Step 20

--

Important:: Perform the setup procedure for the RIM.

Replace the RIM. Refer to Rear Integration Body Control Module Replacement in Body Control System.

Did you complete the replacement?

Go to Step 20

--

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2