will do, thanks.Test the rear sensors with a voltmeter. Set it to resistance and measure in ohms. Measure each sensor and see what you get.
I do not know the acceptable value offhand, but open would indicate a bad sensor. They frequently bulge due to moisture/corrosion.
There are also tests for the modules. I believe there might be one such procudeute in the link above
i think the testing of the sensors will be sufficient, im having a hard time believing the module went bad by coincidence.
if both sensors seem ok, then i may believe it