The cable [ wires] harness for the sensors has an in-line plug that kinda looks like an in-line fuse fixture . It is made like that so you can unplug them and put a scope or ohm meter across the plugs pins for diagnosis..if you can't find them, just follow the cable from the sensors up thru the inner fender well panel and you will come to the plugs...You only have to unplug one sensor for disable, or you can test each one at the plug w/meter...

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A Dalton