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P1540 Diagnostic Trouble Code Discussion for March 2010

Air Conditioning Refrigerant Over-Pressure - Air Conditioning Disabled

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Trouble Ticket Help Requests for DTC P1540
Help Request Posted
1996 Mazda Millenia S 2.3L MIL Lamp on VIN: JM1TA2229T
P1540: Air Bypass Valve System. ... some light on this supercharger system and what is the criteria for the vehicle to go into limp mode/overboost protection mode. Let me start from the beginning.Vehicle first came in with oil leaking, TCS lamp & TCS off lamp illuminated intermittently, ...
March 30, 2010