1994 chevy p/u 4/4 4l60e trans.cannot clear code81


Asked by Jun 26, 2015 at 02:12 AM

Question type: Maintenance & Repair

I have replace b sol.

1 Answer


Have you checked the wiring? Double check all the connections for corrosion, you may have to open up the wiring loom to locate the problem, if you have other codes it maybe an indication of a failing sensor ground. If all else fails you should call around to shops and see if they have the break out box for OBD1 GM, they can put it between the ECM and the vehicle and measure each individual circuit and locate your problem that way, but it won't be cheap at today's labor rates.

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