Toyota Celica ABS light on

It's most likely a wheel sensor, but could be wiring or the ABS ECU, ABS ECUs are a little pricy. The ABS mechanism itself (valveblock etc) is usually very reliable.

-- James

Friend of mine had an ABS unit go on his Nissan

Of course you can still drive with faulty ABS, it's just that the antilock system doesn't function.

Al

And you'll fail the MOT :-)

Pete.

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True. Apparently they check that the ABS light comes on, then goes off again, so you can't even take out the bulb. (That would be a fairly stupid thing to do anyway!)

I definitely wouldn't purchase a car with an undiagnosed ABS fault.

Al

That all depends on how cheap the car is.

At worst it might need a new ABS actuator or a new ECU or a new wheel sensor, and a diagnostic fault code reader would be able to tell you which, since the system obviously knows it a has fault somewhere.

-- James

Toyota electrohydraulic unit ('valve block') is something over £2000 I think, and secondhand units will be hard to come by - so be careful. You may have found the reason the car is at auction!

However , not the most common fault . Course if when you read the fault codes that is the problem you can always chuck it back in tje auction.

I had a similar problem on a Porsche 944 a few years ago - the light would sometimes do what you describe, other times it came on when driving. Porsche dealer replaced wheel-sensors ~700quid, then they took the dash apart to check wiring ~700 quid, then they wanted to replace the ABS computer. I gave up on them at this point and the garage I bought it from and myself tracked it down to a dodgy relay. While waiting for it to arrive, I took the old relay apart and found a dry-joint inside. I resoldered it and the problem was cured.

You could be looking at a very cheap, or very expensive solution - a bit of a gamble.

Aaron.