GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Power Door Locks System Check?

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Go to Step 2

Go to Power Door Locks System Check

2

  1. Use a digital multimeter (DMM) in order to backprobe the inoperative door lock actuator connector between terminal A and ground.
  2. Press the front power door lock switch to the LOCK position.

Does the voltage measure within the specified range?

10-15V

Go to Step 4

Go to Step 3

3

Repair the open in CKT 294 (TAN) between the door lock actuator connector terminal A and S302. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Power Door Locks System Check

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4

  1. Use a DMM in order to backprobe the inoperative door lock actuator connector between ground and terminal B.
  2. Press the front power door lock switch to the UNLOCK position.

Does the voltage measure within the specified range?

10-15V

Go to Step 6

Go to Step 5

5

Repair the open in CKT 295 (GRY) between the door lock actuator connector terminal B S303. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Power Door Locks System Check

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6

Inspect for poor terminal contact at the door lock actuator connector. Refer to Intermittents and Poor Connections Diagnosis in Wiring Systems.

Is the terminal contact OK?

--

Go to Step 8

Go to Step 7

7

Repair the terminal contact at the door lock actuator connector. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Power Door Locks System Check

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8

Replace the inoperative door lock actuator. Refer to Door Lock Replacement .

Is the repair complete?

--

Go to Power Door Locks System Check

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