100 series immobiliser
Submitted: Tuesday, Oct 04, 2016 at 08:17
ThreadID:
133553
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4
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Graham B23
Hi everyone, I'm looking for some help, I have a 2006 sahara diesel that has had to have a new heater core which I did myself with the help of a Gregorys manual and a couple of days, it is all back together but now it wont start. I have read quite a lot about programming and registering keys and tried the different methods suggested without any success. I have pulled everything apart again and checked every connector, I think the problem revolves around having no security light at all, does this mean the immobiliser is dead? Any help would be greatly appreciated.
Reply By: Member - William B (The Shire) - Tuesday, Oct 04, 2016 at 11:25
Tuesday, Oct 04, 2016 at 11:25
Hello Graham B23,
I would be checking all fuses as a first thing.
My motto when trouble shooting faults is to start at the easy things first.
Did you disconnect the battery, did 1 of the power wires come off?
The security light has to come on.
Check every fuse and fusible link, a
test light makes easier.
William
AnswerID:
604877
Follow Up By: Graham B23 - Tuesday, Oct 04, 2016 at 16:05
Tuesday, Oct 04, 2016 at 16:05
Thanks William B,
I've checked every fuse and fusible link today with the multimeter and they all checked OK. I had the battery disconnected for the whole time I was replacing the heater core, it was the last thing I reconnected. I have looked at the wiring diagram and it looks like the immobiliser is part of the BCM above the lcd screen, I have rechecked connections again and still no security light.
FollowupID:
874673
Reply By: Malcom M - Wednesday, Oct 05, 2016 at 11:57
Wednesday, Oct 05, 2016 at 11:57
Presume it is turning over but just wont fire?
There's a electronic module mounted on the passengers side of the engine bay called a 'Spill Valve Controller'. This sucker has no wired earth and relies on the mechanical earth connection from bolting it down. Any sort of crap mounting results in no motor firing.
Extremely common problem so search Lcool for "Spill Valve" so you can ID the thing.
Should that not be teh problem then you should run an earth cable from its mounting bolt to the battery negative anyway as it'll get you sooner or later.
AnswerID:
604914