ABS Warning Light Staying On!!
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ABS Warning Light Staying On!!
HELP!!!!
I have just driven home from town and my ABS warning light came on and now will not go out!!!
On looking in the Xantia's Owners Handbook it says - 'if the ABS light stays on or lights when driving, the ABS computer has detected a fault and has disconnected the ABS system. this does not affect the normal braking system, the function of which is the same as a vehicle without ABS. Nevertheless, it is recommended that the vehicle be taken to a Citroen dealer as soon as possible.'
They is no way I'm going to a Citroen dealer about this so they can charge me a fortune!!
Any advice please?
Cheers guys
I have just driven home from town and my ABS warning light came on and now will not go out!!!
On looking in the Xantia's Owners Handbook it says - 'if the ABS light stays on or lights when driving, the ABS computer has detected a fault and has disconnected the ABS system. this does not affect the normal braking system, the function of which is the same as a vehicle without ABS. Nevertheless, it is recommended that the vehicle be taken to a Citroen dealer as soon as possible.'
They is no way I'm going to a Citroen dealer about this so they can charge me a fortune!!
Any advice please?
Cheers guys
Brady
Citroen C8 2.2 HDI Exclusive 2006/06
Previous French cars -
Renault Megane Tourer 2004/54 1.9 DCI Privilege
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Renault Laguna Sports Tourer Dymanique 2001/51
Citroen Saxo VTR 2000/W
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Previous French cars -
Renault Megane Tourer 2004/54 1.9 DCI Privilege
Citroen Xantia 1998/S 2.0 16v Exclusive Automatic
Renault Laguna Sports Tourer Dymanique 2001/51
Citroen Saxo VTR 2000/W
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Check fuses (including any in the engine bay) , unlikely but if one of the fuses supplying the ABS unit failed, it may count that as a fault.
Next step would be to find someone with a diagnostic machine who could read the real fault (Lexia I'd guess) and then work from there.
It may be something simple such as a damaged sensor (or full of junk etc) or a wire to said sensor. Diag check will confirm the reason.
Next step would be to find someone with a diagnostic machine who could read the real fault (Lexia I'd guess) and then work from there.
It may be something simple such as a damaged sensor (or full of junk etc) or a wire to said sensor. Diag check will confirm the reason.
Andy.
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A common ABS problem with Xantias is poor connections to the sensor. If you take the car to a garage, the ABS ECU will probably show a wheel sensor fault; garage changes expensive wheel sensor - problem may or may not be fixed. Even if it is, there may well not be anything wrong with the faulty sensor, just unplugging and cleaning the sensor connection fixed the fault.
It's likely to cost you around £50 just to get the fault diagnosed.
However, in my limited experience, the O/S/F sensor is the most common culprit. the cheap test is to unplug the ABS ECU (ignition OFF!), and measure the resistance of each sensor with a multi-meter. The high one will be the faulty connection. At the same time check the multi-plug connections too!
If you search the forum, you will find lots of threads on the subject.
It's likely to cost you around £50 just to get the fault diagnosed.
However, in my limited experience, the O/S/F sensor is the most common culprit. the cheap test is to unplug the ABS ECU (ignition OFF!), and measure the resistance of each sensor with a multi-meter. The high one will be the faulty connection. At the same time check the multi-plug connections too!
If you search the forum, you will find lots of threads on the subject.
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1995 Xantia Estate SX 1.9TD in Vert Vega "The Green Lady" - after 11 years now owned by XanTom
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Thanks for the advice spider I've checked the fuses and they are fine. It looks like I may be contacting Citrojim and asking to borrow his Lexiaspider wrote:Check fuses (including any in the engine bay) , unlikely but if one of the fuses supplying the ABS unit failed, it may count that as a fault.
Next step would be to find someone with a diagnostic machine who could read the real fault (Lexia I'd guess) and then work from there.
It may be something simple such as a damaged sensor (or full of junk etc) or a wire to said sensor. Diag check will confirm the reason.
Brady
Citroen C8 2.2 HDI Exclusive 2006/06
Previous French cars -
Renault Megane Tourer 2004/54 1.9 DCI Privilege
Citroen Xantia 1998/S 2.0 16v Exclusive Automatic
Renault Laguna Sports Tourer Dymanique 2001/51
Citroen Saxo VTR 2000/W
Citroen C8 2.2 HDI Exclusive 2006/06
Previous French cars -
Renault Megane Tourer 2004/54 1.9 DCI Privilege
Citroen Xantia 1998/S 2.0 16v Exclusive Automatic
Renault Laguna Sports Tourer Dymanique 2001/51
Citroen Saxo VTR 2000/W
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Don't trust the Haynes BOL for that! Mk1 and Mk2 have different pinout. A search of the archives here should fine the info.Peter.N. wrote:You can check which sensor is not connected from the plug into the ECU, the Hains book should tell you the connections.
Does the ABS light flicker a second or two after turning on the ignition, and then stay on? That usually means a sensor resistance fault has been detected. If it doesn't flicker, it could mean a fuse or ECU problem.
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"Should", but doesn't - Haynes' Xantia BoL is a 'Service and Repair Manual' not a 'Workshop Manual' - an excuse for being incomplete?Peter.N. wrote:You can check which sensor is not connected from the plug into the ECU, the Hains book should tell you the connections.
However someone did post diagram and and a photo some time ago.
2011 Grand C4 Picasso VTR+ 1.6HDi in Kyanos Blue
1995 Xantia Estate SX 1.9TD in Vert Vega "The Green Lady" - after 11 years now owned by XanTom
1998 Xantia 2.1 VXD Estate in Mauritius Blue - R.I.P. (terminal tin-worm)
1995 Xantia Estate SX 1.9TD in Vert Vega "The Green Lady" - after 11 years now owned by XanTom
1998 Xantia 2.1 VXD Estate in Mauritius Blue - R.I.P. (terminal tin-worm)
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The ABS light stays on. The fuses look fine also. Looks like it could be the ECUxantia_v6 wrote:Don't trust the Haynes BOL for that! Mk1 and Mk2 have different pinout. A search of the archives here should fine the info.Peter.N. wrote:You can check which sensor is not connected from the plug into the ECU, the Hains book should tell you the connections.
Does the ABS light flicker a second or two after turning on the ignition, and then stay on? That usually means a sensor resistance fault has been detected. If it doesn't flicker, it could mean a fuse or ECU problem.
Brady
Citroen C8 2.2 HDI Exclusive 2006/06
Previous French cars -
Renault Megane Tourer 2004/54 1.9 DCI Privilege
Citroen Xantia 1998/S 2.0 16v Exclusive Automatic
Renault Laguna Sports Tourer Dymanique 2001/51
Citroen Saxo VTR 2000/W
Citroen C8 2.2 HDI Exclusive 2006/06
Previous French cars -
Renault Megane Tourer 2004/54 1.9 DCI Privilege
Citroen Xantia 1998/S 2.0 16v Exclusive Automatic
Renault Laguna Sports Tourer Dymanique 2001/51
Citroen Saxo VTR 2000/W
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Good topic Colin thank you. Only thing is I have to confess I'm a bit of a novice when it comes to cars and from looking at the pics it looks a bit too technical for me to be tackling!!!
Give me a computer any day and I'm well away ha ha!
Brady
Citroen C8 2.2 HDI Exclusive 2006/06
Previous French cars -
Renault Megane Tourer 2004/54 1.9 DCI Privilege
Citroen Xantia 1998/S 2.0 16v Exclusive Automatic
Renault Laguna Sports Tourer Dymanique 2001/51
Citroen Saxo VTR 2000/W
Citroen C8 2.2 HDI Exclusive 2006/06
Previous French cars -
Renault Megane Tourer 2004/54 1.9 DCI Privilege
Citroen Xantia 1998/S 2.0 16v Exclusive Automatic
Renault Laguna Sports Tourer Dymanique 2001/51
Citroen Saxo VTR 2000/W
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Well, I know its right for my car because I have used it.brmartyn wrote:The ABS light stays on. The fuses look fine also. Looks like it could be the ECUxantia_v6 wrote:Don't trust the Haynes BOL for that! Mk1 and Mk2 have different pinout. A search of the archives here should fine the info.Peter.N. wrote:You can check which sensor is not connected from the plug into the ECU, the Hains book should tell you the connections.
Does the ABS light flicker a second or two after turning on the ignition, and then stay on? That usually means a sensor resistance fault has been detected. If it doesn't flicker, it could mean a fuse or ECU problem.