GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Diagnostic System Check for the Keyless Entry system?

--

Go to Step 2

Go to Diagnostic System Check - Remote Keyless Entry

2

Verify the fault is present.

Does the system operate normally?

--

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3

Do the horns or lights turn on and off when the panic button is pressed?

--

Go to Step 4

Go to Step 6

4

Do the horns sound when the panic button is pressed?

--

Go to Step 5

Go to Diagnostic System Check - Horns in Horns

5

Go to Diagnostic System Check - Lighting Systems in Lighting Systems.

Did you find and correct the condition?

--

Go to Step 7

Go to Symptoms

6

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

Did you complete the repair?

--

Go to Step 7

--

7

Operate the system in order to verify the repair.

Did you find and correct the condition?

--

System OK

Go to Step 2