Schematic Reference: Door Lock/Indicator Schematics

Connector End View Reference: Power Door Systems Connector End Views

Did you perform the Door Systems Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Door Systems

Verify that the power door locks inoperative fault is present.

Does the power door locks system operate normally?

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

Go to Step 3

1. Install a scan tool.
2. Turn the ignition ON, with the engine OFF.
3. With a scan tool, observe the door unlock switch parameter in the Body Control Module data list.
4. Activate the driver door lock switch to the UNLOCK position.
5. Activate the front passenger door lock switch to the UNLOCK position.

Does the scan tool display Active for both switches?

Go to Step 5

Go to Step 4

1. Turn OFF the ignition.
2. Disconnect the appropriate door lock switch.
3. Turn the ignition ON, with the engine OFF.
4. With a scan tool, observe the door unlock switch parameter in the Body Control Module data list.
5. Connect a 3 amp fused jumper wire between the driver door lock switch unlock signal circuit of the appropriate door lock switch harness connector and the ground signal of the appropriate door lock switch harness connector.

Does the scan tool display Active?

Go to Step 12

Go to Step 7

Are all of the door locks inoperative?

Go to Step 8

Go to Step 6

Is the driver door lock the inoperative lock?

Go to Step 9

Go to Step 10

Test the ground circuit of the appropriate door lock switch for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 18

Go to Step 11

Test the door lock actuator lock control circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 18

Go to Step 13

Test the driver door lock actuator unlock control circuit of the driver door lock for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 18

Go to Step 14

Test the door lock actuator unlock control circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 18

Go to Step 14

Test the driver door lock switch unlock signal circuit for a short to voltage or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 18

Go to Step 13

Inspect for poor connections at the harness connector of the appropriate door lock 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 18

Go to Step 15

Inspect for poor connections at the harness connectors of the body control 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 18

Go to Step 16

Inspect for poor connections at the harness connector of 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 18

Go to Step 17

Replace the appropriate door lock switch. Refer to Door Lock Switch Replacement .

Did you complete the replacement?

Go to Step 18

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1. Perform the setup procedure for the body control module. Refer to Body Control Module (BCM) Programming/RPO Configuration in Body Control Systems.
2. Replace the body control module. Refer to Body Control Module Replacement in Body Control Systems.

Did you complete the replacement?

Go to Step 18

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Replace the appropriate door lock actuator. Refer to Front Side Door Lock Actuator Replacement or Rear Side Door Lock Actuator Replacement .

Did you complete the replacement?

Go to Step 18

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2