GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

DEFINITION: This table checks the power driver's door unlock function of the transmitters.

1

Check the power door lock function by using the door mounted switch.

Does the power door unlock function properly?

--

Go to Step 2

Go to Diagnostic System Check - Power Door Systems

2

Press the power door lock button on the transmitter once.

Does the driver's doors unlock?

--

Go to Remote Keyless Entry System Check

Go to Step 3

3

Check the function with known good transmitter.

Does driver's doors unlock?

--

Go to Step 5

Go to Step 4

4

Replace the RKE Module. Refer to Remote Control Door Lock Receiver Replacement .

Is the repair complete?

--

Go to Remote Keyless Entry System Check

--

5

Replace the RKE Transmitter. Refer to Transmitter Replacement .

Is the repair complete?

--

Go to Remote Keyless Entry System Check

--