Mazda DTC P0045

DTC P0045 Variable boost control (VBC) solenoid valve control circuit open
DETECTION CONDITION
•  The PCM monitors the input voltage from the VBC solenoid valve. If the voltages at PCM terminal 104 remain low or high, the PCM determines that the there is a VBC solenoid valve circuit problem.
POSSIBLE CAUSE
•  VBC solenoid valve malfunction
•  Connector or terminal malfunction
•  Open circuit in the wiring harness between PCM control relay and VBC solenoid valve terminal B
•  Open circuit in the wiring harness between VBC solenoid valve terminal A and PCM terminal 104
•  PCM malfunction