old del boy wrote:The ABS light is on because you have a fault in the ABS system , this is not the cause of the pump running continuously , this could be a faulty accumulator , faulty combined pressure switch [ on top of the pump colored blue or maybe a faulty pump relay [ black base in the drivers side footwell ] .
The ABS fault no 27 [ outlet valve ] could just be a bad connection or a fault in the wiring to it or it may be stuck , the warning light just warns you the ABS is disabled , this does not affect normal brake operation these are just my opinions and what i would check but maybe you need to give this to an expert in your area .
My accumulator is new, I thought replacing the accumulator would cure this issue at the beginning. But, the problem is still existing.
So, about pressure switch.. I have searched it on internet and it seems hard to find and expensive?
(any substitution do you know?)
I might have to replace the pump relay first as it's cheaper try!
do you know which relay? I found 3 relay for ABS pump.
+ Reverse inhibit relay DAC7687
+ Main relay DAC7151
+ Relay DAC4506
This relay can cure both symptoms(ABS light and pumping continuously) this time. This is possible, right?
And could you recommend which connections and wires to look at?
There aren't any expert here in South Korea. I have visited a Jaguar official service center and a jaguar specialist who have 25years experience. But they both don't know what to do.