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psm/abs warning lights....

M

Mark Finn

New member
Joined
31 Jan 2005
Messages
23
I have a 2001 carrera 4

Occasionally my abs and psm off warning lights come on ! However if I turn the ignition off and restart the lights are off!!!

This has happened 4 times in the last 2 months......

Any comments??

Is it something to be concerned about??

Cheers....

Mark......


Migration info. Legacy thread was 32835
 
might possibly be related to the brake light switch - when the lights come on again get someone to check if you have brake lights or not -

Migration info. Legacy thread was 35019
 
worth a trip to the OPC to check the sensors or get a software check.....

Migration info. Legacy thread was 35052
 
this is possibly a maf sensor fault , dirt entering the air cleaner can cause these issues , also check tyre sizes , type , and tread depth , these are very important to abs

Migration info. Legacy thread was 40988
 
The same happened to me today in my 996 Targa. ABS lights and PSM off light came on, however went off when I started up again.

Mark what was the outcome with yours?

PS I used to have a 5 series BMW with I Drive that was forever telling me things like " You have a puncture" " Your nearside front door was fallen off" "A total non smoking ban will be introduced soon" and other such nonsense which I always ignored because it was such a regular thing. However with this car I am not so flippant when it comes to such warnings.


Migration info. Legacy thread was 45813
 
Probably an ABS sensor fault.

Migration info. Legacy thread was 45815
 
I have had an identical problem on my 996 C4 and the bad news is that it gets more frequent until you are switching ignition off to clear the two warning lights every couple of miles. The dealership "expert" told me there are a total of 7 sensors which plug into the PSM system and failure of any will cause the PSM and ABS warning lights to come on. My first experience was occassionally the lights came on and were reset by turning ignition off, then this increased in frequency - problem was "air mass analyser" an electronic sensory which clipped onto engine air inlet -it had become clogged and was malfunctioning(cost of new one £350 and 20 minutes to fit total cost £400). The second time was PSM light on all the time and was found to be a steering sensor (cost £120 for new part, but three hours to fit total £420!).

I am still waiting to experience the other five sensors malfunctioning but I can guess the repair cost for each!


Migration info. Legacy thread was 46416
 
Hi

Sorted the problem in the end with the help of jon mitchell at 9xx.co.uk

Transpired to be a faulty mass air flow sensor , the part was approx £300 my car had only done 24k so it can be a problem at any milage tho 2001 cars seem to suffer



Hope this helps!!


Migration info. Legacy thread was 46446
 
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