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Discussion Starter · #1 ·
Been having an issue lately where my alarm will go off, usually only about 15-30minutes after I park it and only when it’s in my driveway in the arvo. Never happens at work or down the shops etc.
It’ll start with the horn just blaring constantly until I unlock it, then once I lock it again about 15minutes later it will make more of a typical alarm chirping sound, totally different to the first time where it’s just the horn.
I’ve tried deactivating the alarm by pressing lock on the key fob until it beeps but it doesn’t work, alarm will still go off.
It’s throwing the code B1A3C which is ‘intruder transceiver module’ but I can’t really find much information on it.
Anyone else had a similar issue?

2014 Sport 4X4 FD2 Off-road, Falken Wildpeak A/T, All weather & convienance group, EVIC, ATC, Hitch
2,212 Posts
Here's what I found. Hope it helps.

B1A3C code possible causes
Vehicle stored with no battery voltage for an extended period of time
Faulty Siren
Siren harness is open or shorted
Siren circuit poor electrical connection

How do I fix code B1A3C code?
Check the "Possible Causes" listed above.
Visually inspect the related wiring harness and connectors.
Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Read more: B1a3c Code - Internal Siren Battery
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