VW Electromechanical Power Steering Rack
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VW and other VAG group Vehicles prior to switching to an electric steering column for assist had an electrically assisted steering rack. Golf MK5 for example.
| Part Number | Generation | Vehicle | Market |
|---|---|---|---|
| 1K2 909 144 F | MK5 | VW Golf | RHD |
| 1K1 909 144 L | MK5 | VW Golf | LHD |
Wiring
The rack can be used in failsafe mode, where by you just give it the high current (80 amp fuse)12v connections and 12v ignition on pin 4 though a 10 amp fuse.
There's a 2 pin connector with beefy pins, pin 2 connectors to a permanent 12v though an 80 amp fuse, pin 1 to ground.
If you want to use dynamic assist levels, you'll need to connect pin 1 to CAN-L and pin 2 to CAN-H, and send out the RPM on 0x280 where Bytes 2 and 3 are RPM*4. This must be above 600 for it to provide assistance.
The rack broadcasts 0x3D0 and 0x3D2
