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 Posted: Sat Jan 01, 2011 10:21 am |
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Joined: Jan 01, 2011
Posts: 6
Trade Rating: 0
Location: BERKSHIRE
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Hi
Got a 2002 xsi, wont start and is coming up with immobiliser fault on display!
RAC came out and got in started for me the other day but is now coming up with the same fault and won't start again!
Anyone else had the same problem and got the solution?
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Posted: Sat Jan 01, 2011 10:23 am |
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Joined: Nov 27, 2010
Posts: 11520
Trade Rating: +10
Location: What's it to you? ? ?
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Reboot the BSI unit 
OR
Try the spare key.
OR
Lock the car with the remote, then unlock with remote, then try again.
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Posted: Sat Jan 01, 2011 10:25 am |
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Joined: Feb 07, 2010
Posts: 13077
Trade Rating: +65
Location: England
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| Lee wrote: |
Q) My car won't start
A) If your car won't start then it could be due to your vehicle's immobiliser system.
The following is the best way to isolate the problem:-
* Check the VERY obvious but sometimes overlooked first - Is there petrol in the vehicle? Is the battery flat? Are the connections to the battery loose?
* If the engine occasionally splutters as if it is just about to start but doesn't fire up fully, starts and keeps cutting out or turns over very slowly then this is likely not related to the immobilser.
* If the engine won't turn over at all (no sound when turning key) or the starter motor just continues to turn but the engine won't fire you may have immobilser issues. Many modern vehicles do have an immobiliser warning light on the dashboard (usually a sillhouette of a key) - check your manual. But some vehicles will not have this warning light. And if the immobiliser is not factory fitted then the light will not come on.
* Do the following:-
- Lock up the vehicle using the remote if equipped and open again. This may reset the immobiliser. Then try and start the vehicle
- Check the fuel cut off button if you have one, it is located to the back of the battery normally either red or black. Normal procedure is to press the button.
- Next, find any spare keys and try them. This will rule out any problems with the transponder chip within your key. Although this does not rule out problems with the transponder aerial.
- Disconnect the vehicle's battery for 5 to 10 minutes, reconnect and then try starting the vehicle. Again this may reset the immobiliser/ECU. Follow the relevant procedure further up in this thread.
- If all this fails then further investigation will be required by a specialist.
Immobilsers work in several ways:
- disconnect voltage to HT leads/coil pack and subsequently stop spark plugs from firing
- disconnect voltage from fuel pump
- disconnect voltage from starter motor
Depending on the vehicle the immobiliser system may employ any combination or all of the above.
If the starter motor is turning then the usual course of action an engineer would take is to see if the plugs are sparking or that fuel is being pumped and then work back to the cause of any irregularity.
Of course the problem could be totally unrelated to the immobiliser and be a faulty fuel pump or ignition system or just a wire unplugged but most engineers would still go about diagnosing the fault in this way. Alternatives are diagnostic fault code reading systems which an engineer would plug into the vehicle's diagnostic socket with specialist equipment and then be able to check all systems in the vehicle as well as any fault codes that may have been logged. These diagnostic systems can make fault tracing easier.
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Posted: Sat Jan 01, 2011 10:27 am |
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Joined: Nov 27, 2010
Posts: 11520
Trade Rating: +10
Location: What's it to you? ? ?
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Its gonna be sulky BSI software or the com2000 unit on its way out
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Posted: Sat Jan 01, 2011 10:29 am |
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Joined: Jan 01, 2011
Posts: 6
Trade Rating: 0
Location: BERKSHIRE
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How do I reboot the BSI unit?
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Posted: Sat Jan 01, 2011 10:32 am |
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Joined: Feb 07, 2010
Posts: 13077
Trade Rating: +65
Location: England
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Posted: Sat Jan 01, 2011 10:49 am |
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Joined: Jan 01, 2011
Posts: 6
Trade Rating: 0
Location: BERKSHIRE
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If I cant get the BSI to reboot and solve the problem what sort of dough am I looking at to replace the unit? & will I have to go to a main dealer?
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Posted: Sat Jan 01, 2011 10:54 am |
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Joined: Nov 27, 2010
Posts: 11520
Trade Rating: +10
Location: What's it to you? ? ?
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Try the reboot first then report back
It might just want a software update.
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Posted: Sun Jan 02, 2011 9:46 am |
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Joined: Jan 01, 2011
Posts: 6
Trade Rating: 0
Location: BERKSHIRE
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onHi All
Just tried to reboot but still the same immobilser fault!
How do I get a software update?
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Posted: Sun Jan 02, 2011 9:50 am |
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Joined: Feb 07, 2010
Posts: 3666
Trade Rating: +59
Location: Scotland
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| BLUEPUG206 wrote: |
onHi All
Just tried to reboot but still the same immobilser fault!
How do I get a software update? |
Take it to a Dealership
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| '98 Nile Blue 306 GTi 6
'04 Obsidian Black 206 GTi 138 | |
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Posted: Sun Jan 02, 2011 9:59 am |
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Joined: Jan 01, 2011
Posts: 6
Trade Rating: 0
Location: BERKSHIRE
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I'd love to but cant get it started to take it there! lol
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Posted: Sun Jan 02, 2011 10:01 am |
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Joined: Feb 07, 2010
Posts: 3666
Trade Rating: +59
Location: Scotland
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Have you tried what MrBSI suggested also suggested?
If that doesn't work then you'll need to get a tow to the Dealership.
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| '98 Nile Blue 306 GTi 6
'04 Obsidian Black 206 GTi 138 | |
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