Vehicle & Technical > Discovery

Another ABS issue ???

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Range Rover Blues:
Wiring fault or relay fault IIRC.  I had one with a similar fault.

BigA:

--- Quote from: "Range Rover Blues" ---Wiring fault or relay fault IIRC.  I had one with a similar fault.
--- End quote ---


OK, i can start there thanks, relay cant be that expensive, and worth a try, wiring??? now that could be more of a challenge  :?

Range Rover Blues:
I was just diving in to that myself as I had a strange fault with my ABS light on a car I've just bought.

Turned out that rather than fix the ABS some t** had connected the warning light to the alternator light to fool the MOT man, never mind the brakes didn't work :shock:

Skutter:
Sounds like the front wheel sensors have given up the ghost. Best way to check them is to disconnect them at the connector in the engine bay and put a multimeter across the two cables in the connector leading down to the sensor, you should be reading about 900ohms across the sensor. If this is the case, with the multimeter still connected waggle the flexible cable (by the swivel joint) coming from the sensor, if the reading goes up and down then the conductors inside the flexible cable from the sensor have broken. Then the only thing to do is an expensive replacement. If the readings do not change check to see if there is any swarf on the sensor (undo the brake pipe bracket and prise out the sensor). Clean it off and push it back in fully (driving will reset the air gap). Failing that it may be the ABS control module which i don't know how to check!  :roll:  :roll:

Range Rover Blues:
An intermittant sensor fault would sho up on the blink test.  The things that casue the light to not go out at all are the relay that controls it (most likley) the pressure switch on the ABS pump or the ECU.  Otherwise it's wiring.

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