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Cuts out after starting - intermittent immobiliser fault


 
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stevefleming
Newbie


Joined: 30 Oct 2014
Posts: 2
Location: United Kingdom

PostPosted: Thu Nov 12, 2015 13:35    Post subject: Cuts out after starting - intermittent immobiliser fault Reply with quote

My 05 Landcruiser LC5 D4D has developed a curious intermittent problem.
It started but then immediately turned the engine off.
The RAC diagnosed low voltage in the batteries and jumped it back to life.
He said the vehicle was sensitive to low voltage and had engaged the immobiliser.
All worked fine for a few months and then the problem recurred.
Low voltage blamed again so we replaced both batteries.
All fine again until today when the problem recurred again. Batteries are just a month old and both read 12.6 volts.
RAC disconnected both batteries, reconnected and then the car started just fine. He suggested it was an ECU fault and we effectively reset it by disconnecting the batteries. The car equivalent of turning it off and then back on again, like a computer I suppose.
Can anyone suggest what the underlying fault is here? And how I can cure it.
Any advice gratefully accepted.
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PostPosted: Thu Nov 12, 2015 13:35    Post subject: Google Ads keep this community free to join!


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marlot
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Joined: 27 Dec 2007
Posts: 1073
Location: worcester

PostPosted: Thu Nov 12, 2015 23:23    Post subject: Reply with quote

I'd start by checking the main battery connections at each end.  Especially the earth cables where they meet the body.  A little rust can cause voltage fluctuations and cause havoc.
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Franko
Newbie


Joined: 01 Oct 2016
Posts: 1
Location: Zambia

PostPosted: Sat Oct 01, 2016 13:00    Post subject: Reply with quote

Hi Steve,

I see you posted this query a while back so hope you are still active on the forum? I am having a similar problem with my 2006 LC4 Cruiser with D4D engine. Not got to the bottom of it yet. Did you ever get your issue sorted out?

Cheers,
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mike68
Newbie


Joined: 07 Feb 2020
Posts: 1
Location: WOKING

PostPosted: Fri Feb 07, 2020 15:04    Post subject: cut out on starting Reply with quote

had the same problem dissconected batteries and it reset and started not sure of cause of fault
any ideas?
thanks for the post it did enable me to get it started again
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