Schematic Reference: Door Lock/Indicator Schematics

DEFINITION: Diagnosis of one of the following DIC messages:

1

Did you perform the Door Systerms Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Door Systems

Verify that the Door Ajar Indicator Malfunction complaint is present.

Does the Door Ajar Indicator system operate as described in the system description and operation?

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

Go to Step 3

1. Install a scan tool.
2. Turn ON the ignition, with the engine OFF.
3. Close all doors.
4. With the scan tool, observe the parameter of each door ajar switch in the Driver Door Module Data Display Inputs list:

•	Driver Door Ajar Sw.

•	Passenger Door Ajar Sw.

•	Left Rear Door Ajar Sw.

•	Right Rear Door Ajar Sw.

Does the scan tool indicate that the Door Ajar Sw. parameter is in the OFF state for all doors?

Go to Step 4

Go to Step 5

1. Open all of the vehicle doors.
2. With the scan tool, observe the parameter of each door ajar switch in the Driver Door Module Data Display Inputs list:

•	Driver Door Ajar Sw.

•	Passenger Door Ajar Sw.

•	Left Rear Door Ajar Sw.

•	Right Rear Door Ajar Sw.

Does the scan tool indicate that the Door Ajar Sw. is in the ON state for all doors?

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

Go to Step 6

1. Turn OFF the ignition.
2. Disconnect the suspect door lock actuator.
3. Turn ON the ignition, with the engine OFF.
4. With the scan tool, observe the appropriate Door Ajar Switch parameter.

Does the scan tool display OFF?

Go to Step 11

Go to Step 9

1. Turn OFF the ignition.
2. Disconnect the suspect door lock actuator.
3. Connect a 3   amp fused jumper between the door ajar switch signal circuit and the ground circuit of the door lock actuator harness connector.
4. Turn ON the ignition, with the engine OFF.
5. With the scan tool, observe the appropriate Door Ajar Switch parameter.

Does the scan tool display ON?

Go to Step 11

Go to Step 7

Test the ground circuit of the door lock actuator for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 14

Go to Step 8

Test the door ajar switch signal circuit of the door lock actuator for the following conditions:

Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 14

Go to Step 10

Test the door ajar signal circuit of the 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 14

Go to Step 10

Inspect for poor connections at the harness connector of the suspect 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 14

Go to Step 12

Inspect for poor connections at the harness connector of the 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 14

Go to Step 13

Replace the suspect door module. Refer to Door Control Module Replacement .

Did you complete the replacement?

Go to Step 14

--

Replace the suspect door lock actuator. Refer to Front Side Door Latch Replacement or Rear Side Door Latch Replacement .

Did you complete the replacement?

Go to Step 14

--

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2