Did you perform the Power Door Lock System Check?

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Go to Step 2

Go to Power Door Locks System Check

1. Connect a scan tool to the data link connector (DLC).
2. Select BCM, special functions, door lock test.
3. Command the driver door unlock, unlock all door, door lock from ON to OFF.

Does the command state match the output?

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Go to Step 4

Go to Step 5

Replace the body control module (PZM). Refer to Body Control Module Replacement in Body Control Systems.

Is the repair complete?

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Go to Power Door Locks System Check

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1. Remove the left front door unlock relay from the rear compartment relay center 3.
2. Connect a J 39200 digital multimeter (DMM) between terminal B4 and ground.

Is the voltage within the specified range?

10-15 V

Go to Step 6

Go to Step 5

Repair the open or the short to ground in CKT 2040 (ORN). Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

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Go to Power Door Locks System Check

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Connect a J 39200 DMM between the left front door unlock relay terminal B6 and ground.

Does the voltage measure within the specified range?

10-15 V

Go to Step 8

Go to Step 7

Repair the open or the short to ground in CKT 2040 (ORN). Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

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Go to Power Door Locks System Check

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1. Connect a J 39200 DMM between the left front door unlock relay terminals B4 and A6.
2. Move the power door lock to unlock.

Is the voltage within the specified range?

10-15 V

Go to Step 9

Go to Step 12

Test CKT 1391 (LT GRN) for an open or a short to ground.

Is the circuit OK?

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Go to Step 11

Go to Step 10

Repair CKT 1391 (LT GRN). Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

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Go to Power Door Locks System Check

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1. Inspect the PZM connectors for cleanliness and tightness.
2. If the connectors are OK, replace the PZM. Refer to Body Control Module Replacement in Body Control Systems.

Is the repair complete?

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Go to Power Door Locks System Check

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Connect a 3-amp fused jumper between the left front door unlock relay terminal B6 and terminal A4.

Did the left front door lock unlock?

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Go to Step 13

Go to Step 14

Replace the left front door unlock relay.

Is the replacement complete?

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Go to Power Door Locks System Check

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1. Install the left front door unlock relay into the rear compartment relay center 3.
2. Disconnect the left front door lock actuator connector.
3. Connect a J 39200 DMM between the actuator connector terminal A and terminal B.
4. Move the door lock switch to UNLOCK.

Is the voltage within the specified range?

10-15 V

Go to Step 15

Go to Step 16

1. Inspect the left front door lock actuator for poor terminal contact.
2. If the terminal contact is OK, replace the left front door lock actuator. Refer to Door Lock Actuator Replacement .

Is the repair complete?

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Go to Power Door Locks System Check

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1. Connect a J 39200 DMM between the left front door lock actuator terminal A and ground.
2. Move the power door lock switch to UNLOCK.

Is the voltage within the specified range?

10-15 V

Go to Step 17

Go to Step 18

Repair the open in CKT 295 (GRY). Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

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Go to Power Door Locks System Check

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Repair the open or the short to ground in CKT 694 (TAN). Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

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Go to Power Door Locks System Check

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