GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Content Theft Deterrent (CTD) System Check?

--

Go to Step 2

Go to Content Theft Deterrent (CTD) System Check

2

Does the horn operate properly?

--

Go to Step 3

Go to Horns System Check

3

Test for an open in CKT 28 (BLK).

Is an open present in CKT 28?

--

Go to Step 4

Go to Step 5

4

Repair the open in CKT 28. Refer to Wiring Repairs

Did you complete the repair?

--

Go to Content Theft Deterrent (CTD) System Check

--

5

Replace the Remote Function Actuator (RFA) module. Refer to Remote Control Door Lock Receiver Replacement in Keyless Entry.

Did you complete the repair?

--

Go to Content Theft Deterrent (CTD) System Check

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