Engine Immobiliser Fault

Talk about the 406's electrical system, what wires do what, how to add extra functionality, etc.

Moderator: Moderators

GingerMagic
3.0 24v
Posts: 3579
Joined: Fri Apr 06, 2012 9:02 pm
Location: Bournemouth

Re: Engine Immobiliser Fault

Post by GingerMagic »

Good work indeed..!

Check the bottom of the door to see if the drain holes are clear - then check the door seal itself. Mine looked fine on my O/S/R door but water was pouring in. Donor cars door seal is now fitted and has sorted it....
2003 2.2hdi estate - mine
1998 Volvo 940 auto estate - also mine
2019 Citroen C3 something - the wife's
PP2000 user, can help with faults / diagnostics in the Bournemouth area.
User avatar
Doggy
Mod with a 2.2 HDi, De-Fapped!
Posts: 10710
Joined: Mon Oct 13, 2008 11:49 pm
Location: Northants

Re: Engine Immobiliser Fault

Post by Doggy »

Great news! :cheesy:

Blocked sunroof drains, (if fitted), are another common cause of water ingress.
2002 HDi 2.2 Exec Estate, (2008-12) (wonderful)
2003 HDi 2.2 6-speed Exec Estate (2012-19) (also a gem)
2009 Citroen C5 2.0 HDi VTR+ Estate (godawful heap)
2008 BMW E91 330i touring (great fun - murdered by a reversing SUV)
2007 BMW E91 325i touring (slower smoother quieter)
reconoistre
Newbie
Posts: 7
Joined: Mon Sep 29, 2014 9:15 pm

Re: Engine Immobiliser Fault

Post by reconoistre »

now I have abs light problem replced sensor fitted new rear hub still the light comes on where to now?
User avatar
steve_earwig
Moderator
Posts: 19812
Joined: Thu Oct 04, 2007 6:09 pm
Location: Jastrebarsko, Croatia http://www.jastrebarsko.hr/lokacija/

Re: Engine Immobiliser Fault

Post by steve_earwig »

Possibly another casualty of the corroded connectors?

Also, the ABS units do go wrong, it's not common but...
Unskilled meddling sin©e 2007

The submitted form was invalid. Try submitting again.
exec406
2.0 16v
Posts: 136
Joined: Thu Jan 24, 2008 7:52 pm

Re: Engine Immobiliser Fault

Post by exec406 »

I had an intermittent start/non start issue.

Couldn't be traced for a while and then eventually it was traced to the high pressure fuel pump not generating the required 300bar.

Starts fine now and the acceleration seems better.
2003, '03' 406 Executive 2.2hdi 136.
PeterN
3.0 24v
Posts: 1673
Joined: Sun Mar 04, 2012 6:04 pm
Location: Charmouth, Dorset

Re: Engine Immobiliser Fault

Post by PeterN »

I had this problem and the first thing that happened was that the instruments went haywire. I thought the fuel sensor was faulty as when I cornered it went from full to empty but it was actually caused by half an inch of water slopping about under the carpet.

Peter
Post Reply