ABS sensors
11-06-2012, 02:48 PM
#1
Rennlist Member
Thread Starter
ABS sensors
I have the ABS light on. Do I need to clean the sensors at the whell? Is there some other problem I should be looking for? TIA.
11-06-2012, 07:48 PM
#2
I would get a code reader to see what's causing the abs light on. A standard OBD2 reader is $40 at auto supply store. Any repair shop can also scan it for you and give you an estimate on the repair.
Generally, it could be sensor, wiring, abs relay, abs pump, air in brake line.
Generally, it could be sensor, wiring, abs relay, abs pump, air in brake line.
11-06-2012, 08:30 PM
#3
Race Director
What car is this on? Cayenne?
You can try cleaning the sensors but if it's anything like my '97 M3 it's not going to do much good.
The standard OBDII reader is only going to tell you it's a sensor problem (if they even tell you that), you need the specific shop reader to tell you which sensor is failing.
On my M3 one of the forums has the pin readings to check on one of the modules to figure out which sensor is bad but I haven't done it yet.
On the M3 it can also be caused by one of the pedal switches.
You can try cleaning the sensors but if it's anything like my '97 M3 it's not going to do much good.
The standard OBDII reader is only going to tell you it's a sensor problem (if they even tell you that), you need the specific shop reader to tell you which sensor is failing.
On my M3 one of the forums has the pin readings to check on one of the modules to figure out which sensor is bad but I haven't done it yet.
On the M3 it can also be caused by one of the pedal switches.
11-07-2012, 05:00 PM
#4
Rennlist Member
Thread Starter
Yes it is the Cayenne. I put the OBD2 on it and it read nothing. It did this before when I parked on a sidehill in the yard. But it cleared itself the next day. All fluids are full and it happened when I bumped the curb so that is why I think it's a sensor. Thanks
