GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

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Schematic Reference: Theft Deterrent System Schematics

1

Did you review the Theft Deterrent Description and Operation and perform the necessary inspections?

Go to Step 2

Go to Symptoms - Theft Deterrent

2

Verify that the lights are inoperative in Alarm mode.

Does the system operate normally?

Go to Testing for Electrical Intermittents

Go to Step 3

3

With the alarm in alarm mode, Test cavity 8 of the Theft Deterrent Module for continuity to ground. Refer to Circuit Testing .

Is continuity to ground present?

Go to Step 4

Go to Step 5

4

Repair the open in the hazard lamp signal circuit between cavity 8 of the Theft Deterrent Module and splice 216. Refer to Wiring Repairs .

Did you complete the repair?

Go to Step 6

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5

Replace the Theft Deterrent Control Module. Refer to Theft Deterrent Module Replacement .

Did you complete the repair?

Go to Step 6

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6

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3