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 the Body Control Module (PZM) on the scan tool.
3. Operate the inoperative door lock cylinder switch.

Does the PZM receive the door lock cylinder input?

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Go to Step 3

Go to Step 4

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

Did you complete the repair?

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Go to Power Door Locks System Check

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1. Disconnect the inoperative door lock cylinder switch.
2. Connect a digital multimeter (DMM) to terminal A and terminal B of the inoperative door lock switch.
3. Using the door key, rotate the door lock switch to the UNLOCK position.

Does the resistance measure within the specified range?

0-5 ohms

Go to Step 6

Go to Step 5

Replace the door lock cylinder switch. Refer to Door Lock Cylinder Replacement .

Did you complete the repair?

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Go to Power Door Locks System Check

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Test one of the following circuits for an open or short to ground:

Is the circuit OK?

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Go to Step 8

Go to Step 7

Repair the open or short to ground in one of the following circuits:

Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

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Go to Power Door Locks System Check

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Repair the open in one of the following circuits:

Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

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Go to Power Door Locks System Check

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