Step | Action | Yes | No | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Schematic Reference: Theft Deterrent System Schematics DEFINITION: The horn does not sound when the content theft deterrent (CTD) system is in alarm mode. | |||||||||||||||||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |||||||||||||||
2 | Perform one of the following to activate the content theft deterrent (CTD) Alarm Mode:
Do all of the alarm mode functions activate, the lights flash and the horn pulses? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 | ||||||||||||||
3 | Are only the horns inoperative? | Go to Step 4 | |||||||||||||||
4 | Operate the horns from the horn pad. Do the horns operate properly? | Go to Step 5 | Go to Horns Inoperative | ||||||||||||||
5 | Test the control circuit of the horn relay for an open between the body control module (BCM) and the horn relay. Refer to Circuit Testing. Did you find and correct the condition? | Go to Step 8 | Go to Step 6 | ||||||||||||||
6 | Inspect for poor connections at the BCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs. Did you find and correct the condition? | Go to Step 8 | Go to Step 7 | ||||||||||||||
7 | Replace the BCM. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement? | Go to Step 8 | -- | ||||||||||||||
8 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 | ||||||||||||||
