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?

--

Go to Step 2

Go to Power Door Locks System Check

2

  1. Disconnect the suspect door lock motor connector.
  2. Hold the left front door lock switch at UNLOCK.
  3. Measure the voltage between the motor connector terminal A and ground.

Does the voltage measure at the specified value?

B+

Go to Step 3

Go to Step 4

3

  1. Hold the left front door lock switch in the UNLOCK position.
  2. Measure the voltage between terminal A and terminal B.

Does the voltage measure at the specified value?

B+

Go to Step 5

Go to Step 6

4

Repair an open in CKT 294. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Power Door Locks System Check

--

5

Replace the suspect door lock motor.

Is the repair complete?

--

Go to Power Door Locks System Check

--

6

Repair an open in CKT 295. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Power Door Locks System Check

--