Hi, have a Peugeot with edc15. The car lost a ground wire and blew the ecu. New ecu fitted and immo chip swapped and car runs fine.
Obd diagnostics works fine but anything more advanced will not read the ecu at all (pp2000 etc) Kline and l line have no voltage on them. There is good continuity to the ecu pins 38 and 10 to pin 6 etc on diag port for the two lines. They don't seem to be shorted either. Ecu has all powers and grounds.
Have tried multiple ECUs and all read using generic OBD2 but nothing else, have tried autel, launch scanners that used to read the same car.