I've had this message for a couple of weeks and I suspect this to be a faulty sensor.
This is what I've tried so far
I have tried leaving the ignition on, PDC on, put my ear close to each sensor for a faint clicking noise - don't hear any thing.
I have checked the PDC control unit for water etc. but it's all nice and dry.
I have disconnected and reconnected the PDC contronl unit - again no change.
I bought a new sensor removed the rear bumper and tried switching all four of them with no joy.
Finally bought a OBD cable from Cable-Shack did some diagnostics (INPA 5.0) and attached image is the only error message I get.
I was really hoping that INPA would show me exactly which sensor had failed.
Am I missing something here?
The only thing that's left I guess is to swap the front sensors and the PDC control unit.
Will INPA indicate if the PDC Control Unit had failed?
Any advise much appreciated.