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SteveSarre · Dec 11th, 2019, 18:19

Hello Dippydog

Maybe you are hearing the ABS kicking in? It sounds like a buzz.

You could rule it out by unplugging the power cable to the ABS module (between the battery and firewall).

I dont have a picture to hand, but the cable has about 4 wires and goes to half way down the front side of the ABS module and pump unit.

If it is kicking in when it doesn't need to, most likely is a faulty ABS wheel sensor. Also possible but slightly less likely is a faulty ABS module. Is the speedo behaving normally?

What year is your car?

I guess you don't have a code reader?

HTH
Steve

Dec 11th, 2019, 18:19	#3
SteveSarre Premier Member Last Online: Yesterday 21:13 Join Date: Oct 2004 Location: London/West Country	Hello Dippydog Maybe you are hearing the ABS kicking in? It sounds like a buzz. You could rule it out by unplugging the power cable to the ABS module (between the battery and firewall). I dont have a picture to hand, but the cable has about 4 wires and goes to half way down the front side of the ABS module and pump unit. If it is kicking in when it doesn't need to, most likely is a faulty ABS wheel sensor. Also possible but slightly less likely is a faulty ABS module. Is the speedo behaving normally? What year is your car? I guess you don't have a code reader? HTH Steve __________________ V70 2.5 Turbo AWD Man. 1999 Red V70 2.5 10V Auto 1998 Green C70 T 20V Auto Conv. 2001 Blue, C70 T5 Auto Conv. 2000 Blue V70 2.5 Turbo AWD Auto 1998 Green, V70 2.5 10V Auto BiFuel 1999 Red (scrapped) V70 20v Auto 1999 Green (scrapped)