Can anyone with access to VAG wiring diagrams tell me what the three connectors are for on a Polo 9N power steering pump? I'm thinking of using one in the Mk1. http://www.ebay.co.uk/itm/VW-Polo-M...arts_Vehicles_CarParts_SM&hash=item566410aec5
Two way is (thick!) battery power and ground, three way is the angle sensor, four way is ignition live and Canbus pair. PM'ing you a link to a jpg in my dropbox, having trouble with photobucket this morning.
okiedokie! T2a 1 - red/blk - permanent live 2 - brn - earth T4r 1 - org/brn - CAN-LOW 2 - org/blk - CAN-HIGH 4 - black/yellow - Ignition live Last plug goes to the PAS sensor, looking at the diagram its either a 3 pin if rack is a TRW unit or 4 pin if SIMI-KOYO manufactured. This might be an issue using it on a mk1, the steering sensor is mounted on the steering rack so I'd assume it wont work without?
Is there any chance to get the PAS pump working without steering sensor and without CAN-Connection? For example to be able to fit it at a MK3 Golf?
i think the important part is the steering sensor, can-bus i imagine isnt important. but i cant say for sure unfortunately I've not seen anyone else try! you can find similar units off earlier cars without any fancy gubbins though worst case. not just VAG other makes have similar setups
Pretty much as per ^ From a very recent post on Briskoda.net, by a guy called sepulchrave who tends to know what he's on about: "The steering pump is completely self-contained with it's own little on-board ECU which takes the input from the steering angle sensor and translates it into power assistance. No coding or reprogramming of the main ECU is required, the pump is connected to the vehicles CAN-bus which is how it communicates with the diagnostic socket, the vehicle speed sensor and the warning light." So it sounds like you could get something going if you could mount a compatible steering angle sensor and something for it to read onto the column; but even then you'd end up with a system that wouldn't be speed-sensitive. I'm not sure how important that might be.
