Opel Power Steering Pump

Pump:


Harness:


Usage:

From Arber333:

So here is how the pump works. - Connect thick red wire on live 12V via 80A fuse. - Connect thick brown wire to car chassis as negaitve lead. - Driver provides ignition 12V and pump should get this signal via thin Black wire. - starts engine and pump gets the signal from live alternator voltage via thin blue/white wire.

In former case pump will spool up at once and provide steady pressure. It will draw some 6A of current with no delta pressure at the steering end. You can connect both thin wires to 12V at the same time too however. In that case pump will start, but will spool up really slowly.

Normally i use one 12V relay in a car to signal 12V ignition live to other support elements inside car. I connect there coolant water pump, DCDC enable signal, power to inverter , precharge relay, vacuum pump and of course EHPAS pump black wire. When i turn to start the car i have one latching (or two) relay to provide "engine on" signal for car computer. I connect blue/white wire here nd as soon as i start inverter power steering is on!