Any ideas why the ABS warning light would be on and how to test for possible issues.

The cars been in the air for 9 months with the battery disconnected and there wasn’t an issue before it went up.

To the best of my knowledge I haven’t touched anything to do with the brakes and the car passed its MOT yesterday (the light may have been on yesterday as you can hardly see the warning light in the bright sun).

The fluid level is spot on and the ABS fuse in the engine bay is fine. The car also drives fine and brakes well although I obviously haven’t hit them hard enough for the ABS to need to kick in. 

Thanks,

Chris.

There is a test function you can perform. The ABS ECU is inside the off-side rear interior panel - essentially behind your seat-belt. Gently pull the trim away, you'll see the rectangle box - it has an LED which flashed to indicate the fault code.

Give me a mo and I'll dig out the link Andrew sent me.....

Here you go.....

 

 

Thanks Richard. I’ll get on that next time she comes out the stable. ?

6 flashes, right front rotor sensor circuit.

Im assuming this is the ABS sensor. Anyone have previous experience changing these? I’ll go and try to find a how to. ?

Have you got a multimeter for reading resistance?

In the meantime, check the sensor harness in the wheel well for signs of damage.

BR-25.pdf

The whole thing looks like this:

Edited May 14, 20205 yr by AndrewG

2 hours ago, Chris300 said:

6 flashes, right front rotor sensor circuit.

Im assuming this is the ABS sensor. Anyone have previous experience changing these? I’ll go and try to find a how to. ?

Mine was near side rear - and sadly no experience of changing it.... Jimmer did the honours for me

I do, thanks for the advise Andrew. ?

 

Thanks Richard. I might have to put a list together for Jim to price up. ?

Looking for the plug (of the type in the picture above) measure the resistance as below: