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Reply to "SACC Power Steering"

The Japanese units, made by Koyo or NSK,  have a fail safe built into the basic motor device that will go to what was programed into that chip as the assist necessary for 43mph.

For those you only need a three wire hook up for "basic operation". The 10 gauge black (-), red (+) and the white wire to the ignition switch "run position".



IF you want to dial down the assist automatically as speed increases, then you need the separate brain, i.e., the little separate box. It's only purpose is to dial down the boost according to vehicle speed.

I'm not sure why SACC uses the box unless the EPS CPU sees the potentiometer the same way as it sees the VSS?



The US GM versions will not operate without that original CPU box or the little aftermarket "patch in" box that fools the EPS motor.



I'll email Gerry Romack. I'm enjoying this discussion. It's fun and informative.

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