Friday, September 09, 2011 - 10:13 am, by: Mick Arnett(Barney318)
I have a uzz31 that i am doing up and the electric brake booster pump runs all the time even with the ignition off . If the pressure is low is it normal for the pump to operate with the ignition off The master cylinder , accumulator and all other parts look like new but the pump won't stop I have bled the system with no change Can someone please tell me where i can get a wiring diagram from for the brake system . Thanks Mick
Friday, September 09, 2011 - 10:54 pm, by: Dave Rose(Sand_groper)
Mick, sounds like the pump relay has stuck in (should not run with ign off),the points inside can get welded together if the pumps been running all the time(with ign on),the cause is the accumulator has run low on gas. Have a search in SC for more info.
Friday, September 30, 2011 - 05:07 pm, by: Mick Arnett(Barney318)
Runs for around 15 seconds when key first turned on then it only runs for around 10 sec after pumping the brake pedal 4 to 5 times Everything looks new Guessing it has all been replaced but previous owner didn't find welded relay