VW Electromechanical Power Steering Rack

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Revision as of 17:53, 9 January 2022 by Bigpie (talk | contribs) (→‎Wiring)
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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
1K2909144F VW Golf 2004 (MK5)
VW electric steering rack.jpg

Wiring

The rack can be used in failsafe mode, where by you just give it the high current 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

Rack Pins