GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the Remote Keyless Entry System Check preformed?

--

Go to Step 2

Go to Diagnostic System Check - Remote Keyless Entry

2

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

Do the power door locks operate properly?

--

Go to Step 3

Go to Diagnostic System Check - Power Door Systems

3

Is the LF door lock function inoperative from both transmitters?

--

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 Diagnostic System Check - Remote Keyless Entry

--

5

Replace the keyless entry transmitter. Refer to Transmitter Replacement

Is the repair complete?

--

Go to Diagnostic System Check - Remote Keyless Entry

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