Originally Posted by
XRSTI
yup that didnt sort it either
has to be a way of puttin a diagnostic on it surely ?
Nope, Teves Mark 2 has no diagnostic output.
If it's 2wd, you have 3 relays to check - the orange one in position VII in the fusebox which is an inhibitor to stop the hydraulic pump running while the engine's being started (4x4s have this integrated in the ECU), there's a green one behind the glovebox which powers the system, and there's a purple one behind it which runs the hydraulic pump. The latter two relays are fused - the hydraulic pump etc can run independantly of the rest of the system, so if the fuse for the green relay's popped (cutting the system off), you'll still have power assistance for the brakes.
As already mentioned, a running wheel sensor fault can only be detected above 5mph. A disconnected wheel sensor is detected immediately - check they're actually connected on the chassis rails for the front, and under the rear bench, and not worked loose. The resistance for the wheel sensors isn't as important as the AC voltage that comes out of them. Resistance only tells you a sensor's connected, the AC voltage tells you the signal's strong enough for the ECU to use as a reference.
Leave the two pin connector on the reservoir bridged while you're diagnosing it - this will rule out the switch in the float column.
Only things you really have after that are the solenoids in the valve block (check this has the relevant earths and multiplug attached), and the pressure switch in the hydraulic unit, which are unlikely to have failed if they've not been meddled with.