L322 Alarm randomly going off

arcadenut · Feb 11, 2023

My 2012 L322 Rangerover alarm goes off randomly. Is there anyway of finding out which sensor has caused the alarm condition? Thanks.

kermit_rr · Feb 11, 2023

Probably need a code reader for that, but check the battery voltage, that can do funny things to the alarm

DanClarke · Feb 11, 2023

arcadenut said:
My 2012 L322 Rangerover alarm goes off randomly. Is there anyway of finding out which sensor has caused the alarm condition? Thanks.

Yes. Proper LR specific diagnostics should provide sufficient clues.

marjon · Feb 11, 2023

Start with the bonnet switch.
Can just be unplugged or bridged, cant remember which right now but easy to check.

J

arcadenut · Feb 11, 2023

kermit_rr said:
Probably need a code reader for that, but check the battery voltage, that can do funny things to the alarm

Thanks will check that.

arcadenut · Feb 11, 2023

DanClarke said:
Yes. Proper LR specific diagnostics should provide sufficient clues.

Trying that now. Ta

arcadenut · Feb 11, 2023

marjon said:
Start with the bonnet switch.
Can just be unplugged or bridged, cant remember which right now but easy to check.

J

I’ll try to find causing it but will try that first

Mark Piercy · Feb 12, 2023

The bonnet switches are a good call as they get filthy and with continuous land rover repairs the bonnet is always slammed down