Body Control Module (BCM)
BODY CONTROL MODULE (BCM)
| Refer to COMPONENT INDEX . |
When the DAB trim cover is pressed, the closed horn switch circuit provides a ground signal sense to the SCCM, which then, using a HSD, pulls the control coil of the horn relay located within the PDC to battery voltage. The horn relay is continuously connected to ground. The horn relay then controls the output to the horns accordingly through a fuse in the PDC.
Inputs
- Horn request from horn switch
- Accessory blink request; FOBIK safe unlock all request
- Remote start chirp
- Panic request; FOBIK RF request
- IPC setup for horn sound during lock and remote start
- Alarm system horn request
Outputs
- Horn command to horn relayNOTE:
If the horn switch is activated for more than 30 seconds, the internal timer to the BCM will deactivate the horn for a 23 second cool down period. For all other horn request functions, the timer in the BCM will not effect the horn activation function.