2010 Ford Fiesta non runner

This Ford was brought in to us with intermittent non start issues. When the fault was apparent it was dead on the key and the immobliser light flashed quickly.  Through experience of these faults we knew this signified that there was a communication issue between the GEM module and the ECU in the engine bay.

Accurate wiring diagrams and test procedures are key to finding these kind of faults. Through proven test procedures the fault was traced to a damaged plug in the engine bay. The plug repaired and a test drive later all was well