goodevening all, recently my abs warning light has came on and it's not going off i suspect it's a sensor, but is there a way to tell what one is at fault ?

oh and is there any place where i could get a manual on these warning lights and possible causes

Edited 16 March, 201115 yr by sesachc

goodevening all, recently my abs warning light has came on and it's not going off i suspect it's a sensor, but is there a way to tell what one is at fault ?

oh and is there any place where i could get a manual on these warning lights and possible causes

You need to have the car scanned.

Four sensors, a pump and a computer with associated wiring could mean that any combination of a hundred or so codes could be recorded.

A simple check in the absence of anything meaningful would be to look at the condition of the fusebox on the battery for signs of overheating at where the main alternator cable is connected. It wouldn't do any harm to replace the green 30 Amp blade fuses and clean the wiring contacts for them as one of these supplies power to part of the ABS system and they deteriorate with age/use.

You can test each sensor with a multimeter for resistance and output and also do wiring continuity checks at the ABS unit, but it'll take a fair amount of time, may involve wheel removal, you may need some help and the results may not be conclusive, it's alot easier to get the codes read.