Schematic Reference: Interior Lights Schematics and Door Control Module 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.
2. Turn OFF the interior 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 of the doors.
5. With a scan tool, observe the Door Jamb Switch parameters in each of the door modules inputs data list.

Does the scan tool indicate that the Door Jamb Switch parameter is OFF for all the doors?

Go to Step 4

Go to Step 6

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

Does the scan tool display OFF?

Go to Step 9

Go to Step 5

1. Turn OFF the ignition.
2. Disconnect the instrument panel (I/P) dimmer switch.
3. Turn ON the ignition, with the engine OFF.
4. With a scan tool, observe the Interior Lamp Switch parameter in the dash integration module (DIM) data list.

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.
3. Turn on the ignition, with the engine OFF.
4. With a scan tool, observe the Door Jamb Switch parameter in the appropriate door module inputs data list.

Does the scan tool indicate that the Door Jamb Switch parameter is OFF?

Go to Step 11

Go to Step 7

Test the door open switch signal circuit of the inoperative door lock actuator 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 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 appropriate 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 20

Go to Step 16

Inspect for poor connections at the connector of the appropriate 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 20

Go to Step 17

Inspect for poor connections at the 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 connector of the rear integration module (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

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Replace the appropriate 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 20

--

Replace the inoperative door module. Refer to Door Control Module Replacement in Doors.

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