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. Connect a scan tool.
2. Turn the ignition ON, with the engine OFF.
3. With a scan tool, observe the door lock switch parameter in the Body Control Module (BCM) data list.

Does the scan tool display Inactive?

Go to Step 4

Go to Step 9

With a scan tool, observe the door unlock switch parameter in the BCM data list.

Does the scan tool display Inactive?

Go to Step 5

Go to Step 10

1. With a scan tool, observe the door lock switch parameter in the BCM data list.
2. Activate the driver door lock switch, then the front passenger door lock switch to the LOCK position.

Does the scan tool display Active when the switches are activated?

Go to Step 6

Go to Step 11

1. With a scan tool, observe the door unlock switch parameter in the BCM data list.
2. Activate the driver door lock switch, then the front passenger door lock switch to the UNLOCK position.

Does the scan tool display Active when the switches are activated?

Go to Step 7

Go to Step 12

Are all of the door locks inoperative?

Go to Step 14

Go to Step 8

Is the driver door lock the only inoperative lock?

Go to Step 15

Go to Step 16

Test the driver door lock switch lock signal circuit of the appropriate door lock switch harness connector 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 17

Test the driver door lock switch unlock signal circuit of the appropriate door lock switch harness connector 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 17

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

Did you find and correct the condition?

Go to Step 23

Go to Step 13

Test the driver door lock switch unlock signal circuit of the appropriate door lock switch harness connector for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 23

Go to Step 13

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

Did you find and correct the condition?

Go to Step 23

Go to Step 17

1. Test the door lock actuator lock and unlock control circuits for a short to ground or an open.
2. Test the driver door lock actuator unlock 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 18

1. Test the driver door lock actuator unlock control circuit for an open.
2. Test the door lock actuator lock control circuit to the driver door lock actuator for an open.

Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 23

Go to Step 19

Test the door lock actuator lock and 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 23

Go to Step 19

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 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 appropriate door lock. 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 appropriate door lock switch. Refer to Front Side Door Window Switch Replacement .

Did you complete the replacement?

Go to Step 23

--

Replace the BCM. Refer to Body Control Module Replacement in Body Control System.

Did you complete the replacement?

Go to Step 23

--

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

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