2002 mini cooper s power steering fault

[digi-dash]

the above car had no power steering so the customer fitted new pump. the problem is the pump continues when engine turned off and drains battery. the pump plugs and harnes look good and not burned out. obviously the fuse under fusebox must be ok for pump to have power to run. i am thinking the new pump must be faulty but would like a second opinion before condeming it. i know the control unit gets a "message" that the engine is running but i cannot find a diagram relating to the 3 wire plug and where this message comes from, thanks steve

[Meat-Head]

some folks just arn't pleased, does the customer want pas or not!

[digi-dash]

never met the owner of car...ill ask garage that has it to call him just incase. thanks steve

[smirnoff_rules]

Can't u just change the power supply to ignition and not constant feed at the motor on the pump


Sent from my iPhone using Tapatalk

[Liteace]

Does it not get its power from the alternator when engine is running, similar to the Merc A class system where the power steering contol module is built in the pump

[digi-dash]

Can't u just change the power supply to ignition and not constant feed at the motor on the pump


Sent from my iPhone using Tapatalk

could fit a relay but as garage has bought a new pump if its faulty may as well return and get a working one. they have a known issue with the pump running on but as its a new pump wondered if anything else could cause the same prob, thanks steve

[digi-dash]

Does it not get its power from the alternator when engine is running, similar to the Merc A class system where the power steering contol module is built in the pump

yes module is in pump but wanted wiring diagram to trace 3 wires from module before replacing pump, thanks steve

[Liteace]

yes module is in pump but wanted wiring diagram to trace 3 wires from module before replacing pump, thanks steve


i may be wrong (I am a lot of the time + div) would the 3 not be +12 feed, earth & +12 (engine running) feed from alternator

[digi-dash]

i may be wrong (I am a lot of the time + div) would the 3 not be +12 feed, earth & +12 (engine running) feed from alternator

will check tomorrow. sounds plausible but i "thought" it may be comms from/to ecu. suppose ill have to stop being lazy and follow/test the wires. thanks steve

[teuton]

here ya go with the diagram. cheers.

[digi-dash]

thanks teuton, thats what i needed. wires check out ok so told customer to buy another new pump. thanks again, steve

[digi-dash]

also liteace looks like we were both right...eng running and comms, thanks steve

[digi-dash]

2nd new pump fitted now fixed.faulty pump supposed to be brand new not recon!!! thanks everyone, steve