oconnorcal

New Member
hi on my p38 i have a warning come up anout a alarm fault. any idea what it could be of it it has a fuse i could check?
 
Probably have the alarm function disabled in the becm...that will throw up "Alarm Fault" for a split second sometimes when switching the ignition on.
 
yeah the car starts, when i set the alarm the horn sounds like it does when i leave a door open or something. what is becm??
 
Could be a dodgy connection at the harness to the door outstation which is a "Handshake" to the BECM (Body Electric Control Module) . The BECM is the main ECU on the car and is interfaced with every other ecu.
 

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