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    ScannerDanner: Ford Explorer setting multiple output circuit codes

    April 15, 2022
    All codes set immediately on start-up or during bidirectional testing. Could we have yet another bad ECM?

    All codes set immediately on start-up or during bidirectional testing. Could we have yet another bad ECM? It is so hard to make a call on a bad module, especially when it has already been replaced! Join ScannerDanner as he attempts to do exactly that, to prove the fault and make the call.

    The circuit fault codes: P0135, P0141, P0155, P0161 are for the O2 heaters, P0403 is EGR valve, P0443 is EVAP purge valve, and P0645 is AC clutch relay.

    Paul Danner (aka ScannerDanner) is an ASE L1-certified Master Technician with nearly 30 years of field experience in electronic, electrical, and driveability diagnostics. For over 20 years he has been employed as an instructor at Rosedale Technical College, where he has taught Engine Performance Diagnostics and Electrical and Electronic Systems troubleshooting. 

    In addition to his popular YouTube content, Paul offers premium content on his site, ScannerDanner.com. We encourage you to check it out! You may also be interested in his book, "Engine Performance Diagnostics", available exclusively on AESWave.com.