DTC P0662:00: Notes

DTC P0662:00	Variable intake air solenoid valve circuit high input
DETECTION CONDITION	The PCM monitors the variable intake air solenoid valve control signal. If the PCM turns variable intake air solenoid valve on but current at PCM terminal still remains high, the PCM determines that the variable intake air solenoid valve circuit has malfunction. Diagnostic support note This is a continuous monitor (other). The check engine light does not illuminate. FREEZE FRAME DATA (Mode 2)/Snapshot data is not available. The DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION	-
POSSIBLE CAUSE	Variable intake air solenoid valve connector or terminals malfunction Variable intake air solenoid valve malfunction PCM connector or terminals malfunction Short to power supply in wiring harness between variable intake air solenoid valve terminal A and PCM terminal 2J PCM malfunction
Courtesy of MAZDA MOTORS CORP.