Pop ignition to position 2 (but engine not running!). Stick it in reverse and listen to the sensors. They should be quietly clicking/ticking. Any which don't are either broken, or their wiring back to the control!box is broken. You can test the wiring with a multimeter.
I put plenty of contact cleaner on the connections behind the bumper (the big multi plug), those into the control box, and the ends of the cable which go to each sensor. Oh, and I replaced one sensor with a compatible one from eBay. Works lovely now!
|