GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Remote Keyless Entry Diagnostic System Check?

--

Go to Step 2

Go to Diagnostic System Check - Remote Keyless Entry

2

With the keyless entry transmitter, attempt to operate the panic function.

Do both the horns and park lamps pulse on and off?

--

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

3

Do any of the panic functions operate?

--

Go to Step 4

Go to Keyless Entry System Inoperative

4

Do the park lamps pulse on and off?

--

Go to Diagnostic Starting Point in Horns

Go to Diagnostic Starting Point in Lighting Systems