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P1540 Diagnostic Trouble Code Discussion for March 2013

Air Conditioning Refrigerant Over-Pressure - Air Conditioning Disabled


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Trouble Ticket Help Requests for DTC P1540
Help Request Posted
2000 Mazda Millenia 2.3L Cuts out, MIL Lamp on VIN: JM1TA2228Y
P1540: Air Bypass Valve System. ... belt, after a few short drives it went into limp mode with TCS, TCS OFF and check engine light, checked and found codes above, Checked ABV Valve and CAC Bypass Valve both working, checked vacuum hoses between valves and solenoids-ok, checked for power/grou...
March 05, 2013