just realised the pump doesnt run whyen you turn the ignition on, the 4 fuses are ok in the boot, what else can cause it to stop working, is it common for the pump itself to die...?

ive check the ralays and fuses, all ok, and pulled themultiplug off the pump, there isn't any voltage there when you swicth the ignition on,, could it be the abs ecu thats fooked ...?

 

bttt

 

Hi,

If you hav'nt 12 volts on pump multiplug, pump is not faulty.
You can check the pump with direct 12 volts feed.

May be ABS ECU or earth connection.
Have you disconnected your battery recently ?

Regards.

 

YEP, THE BATTERY HAS BEEN BEEN COMPLETELY FLAT, AND RECHARGED WITH A TRICKLE CHARGER IN SITU...

 

The pump will work perfectly fine even without ABS ECU from what I know.

 

the relays and fuses int eh boot are ok, and energise, what would stop the pump having voltage to its connector if these are ok when the system is flay and SHOULD be pressurising?

 

Pressure switch?

 

is that the green bit on the front of the unit...? if i short it out should it make the pump run..?

 

It's the tubular thing sticking out of the pump below the fluid tank. (I don't know if RHD is exactly identical). I think you would have to short terminals on the multiplug but I am not sure and won't advice it as you can brake something.

 

but as it already broken.... ill give it a try

 

If you have Cossie manuals or Microcat you have different pump parts named there.

I had this switch failed on mine. It just broke off.

 

i have both

it hasnt broken off, but nothing to say that it hasn't got stuck, or the contacts welded ...

 

The only tuner who knows about Cossie a bit here says that he never ever encountered ABS pump failure exept from mechanical damage from outside. I know because I asked couple of wweeks ago when I had brakes problems. But maybe it's that swtch. There is procedure for changing it described in manual.


Also I had problems with the plug socket on pump motor but if you don't get live feed when ignition on it is not the case. In my case the socket was completly rotten on the inside. Had to remove plastic covers on pump motor and solder it properly.

 

will check 2nite when i get in, thanks

 

Hi,

Check if all wire are connected on your battery (all negative brown)
May be you have one less.

Regards

 

working again.!!..it was alaong those lines...

started tracing the main cables from the pump bck after i proved that it works with a direct feed.

got to the battery, there are 2 fairly heavy cables (2.5mm2) that are in their own red sheath... one of these, the actual conductor had snapped inside the insucation, right at the end where yuo have to waggle them to get the abttery charger croc clips on, re crimped the end witha nice new eyelet and hey presto , brakes again.

cheers guys for the help

 

Dave, I wish you were my neighbour. Would be much easier to have an Escos...