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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1427 (Theft Deterrent System & Anti-Theft System) >> Diagnostic Information and Procedures >> Theft Deterrent Alarm Inoperative

Theft Deterrent Alarm Inoperative

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IMPORTANT: Before attempting to diagnose the Theft Deterrent Alarm, insure that the ASM Part A, and ASM Part B are enabled in the Dash Integration Module (DIM) Set Options menu.
Theft Deterrent Alarm Inoperative

Step Action Values Yes No
Schematic Reference: Theft Deterrent System Schematics
Connector End View Reference: Theft Deterrent System Connector End Views
DEFINITION: THE Theft Deterrent Alarm does not sound when the CTD system is in alarm mode, Or: The Theft Deterrent Alarm sounds when the CTD system is not in alarm mode.
1 Did you perform the Theft Deterrent System Diagnostic System Check? - Go to Step 2  Go to Diagnostic System Check - Theft Deterrent
2 Were you sent here from Content Theft Deterrent (CTD) Alarm Mode Inoperative? - Go to Step 3  Go to Content Theft Deterrent (CTD) Alarm Mode Inoperative
3 Does the Theft Deterrent Alarm sound when the CTD system is not in alarm mode? - Go to Step 4  Go to Step 5 
4 Does the Theft Deterrent Alarm sound when the ignition is ON? - Go to Step 6  Go to Step 7 
5 Disconnect the Theft Deterrent Alarm harness connector.
Does the Theft Deterrent Alarm sound?
- Go to Step 8  Go to Step 9 
6
  1. Turn the ignition ON.
  2. Probe the Ignition 1 voltage circuit at the Theft Deterrent Alarm harness connector with a test lamp that is connected to a good ground.
Does the test lamp illuminate?
- Go to Step 9  Go to Step 13 
7 Measure the voltage of the hazard switch signal circuit at the Theft Deterrent Alarm harness connector.
Is the voltage near the specified value?
12 V Go to Step 9  Go to Step 11 
8 Test the Theft Deterrent Alarm hazard switch signal circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
- Go to Step 18  Go to Step 12 
9 Test the Theft Deterrent Alarm ground circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
- Go to Step 18  Go to Step 10 
10 Test the Theft Deterrent Alarm battery positive voltage circuit for an open or a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
- Go to Step 18  Go to Step 14 
11 Test the Theft Deterrent Alarm hazard switch signal circuit for an open or a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
- Go to Step 18  Go to Step 15 
12 Repair the short to voltage on the Theft Deterrent Alarm Ignition 1 voltage circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you complete the repair?
- Go to Step 18  -
13 Repair the short to ground or the open in the Theft Deterrent Alarm Ignition 1 voltage circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you complete the repair?
- Go to Step 18  -
14 Inspect for a loose or poor connection at the harness connector of the Theft Deterrent Alarm. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
- Go to Step 18  Go to Step 16 
15 Inspect for a loose or poor connection at the harness connector of the Body Control Module (BCM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
- Go to Step 18  Go to Step 17 
16 Replace the Theft Deterrent Alarm. Refer to Theft Deterrent Alarm Replacement  .
Did you complete the repair?
- Go to Step 18  -
17 Replace the BCM. Refer to Body Control Module Replacement in Body Control System.
Did you complete the repair?
- Go to Step 18  -
18 Operate the system in order to verify the repair.
Did you correct the condition?
- System OK Go to Step 3