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Old 10-11-2012, 09:50 PM
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KarTek KarTek is offline
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Join Date: Jun 2007
Location: Bahama/Eno Twp, NC
Posts: 3,249
If by "back" you mean the part facing the rear of the car as opposed to the other "back" that faces the engine, then the wire you see there contains the rack positioning circuit and the rack position feedback circuit.

Essentially, ECU says "rack move forward" and the feedback tells the ECU "yep, it moved".

Now, it is possible to run the car with the side cover off the IP. This way, you can verify that the rack is indeed moving. It should do a full cycle when you switch the key on then settle down to a position about 6mm from the resting position.
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