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fasterthanjesus
23-07-2012, 08:21
No rear brake activity

Brake bias valve is fine.

suspected abs unit

anybody had any similar experiences?
northy
23-07-2012, 10:17
Ive had that and it turned out to be my rear bias valve which was broken.
fasterthanjesus
24-07-2012, 02:05
Ive had that and it turned out to be my rear bias valve which was broken.

so am i right in thinking that (with my limited knowledge) that there should be brake activity regardless of wether the abs
is working or not. i.e. that if the fuse was taken out then there would be brakes front and rear (depending on wether the bias valve is set right).

i dont believe the explanation that there is a fault in the abs, which is why there is no rear brake activity.

all help appreciated !
northy
24-07-2012, 07:55
The abs only works when it senses a wheel isn't spinning and it will reduce braking effort to that side until it spins again.

I would recommend a new bias valve
fasterthanjesus
24-07-2012, 08:06
The abs only works when it senses a wheel isn't spinning and it will reduce braking effort to that side until it spins again.

I would recommend a new bias valve

do you know if the part number is different for abs / non abs

and if

http://www.partsbase.net/part/trw-gpv1195

is any good ?