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DTC P0662 [LF]: Notes

DTC P0662 (LF) DETECTION CONDITION AND POSSIBLE CAUSE

DTC P0662 Variable intake air solenoid valve circuit high input
DETECTION CONDITION 
  • The PCM monitors the variable intake air solenoid valve control signal at PCM terminal. If the PCM turns variable intake air solenoid valve on but voltage at PCM terminal still remains high, the PCM determines that the variable intake air solenoid valve circuit has a malfunction.

Diagnostic support note 
  • This is a continuous monitor (other).
  • The MIL does not illuminate.
  • FREEZE FRAME DATA (Mode 2/Mode 12) is available.
  • The DTC is stored in the PCM memory.
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 B and PCM terminal 2J
  • PCM malfunction
G06149992Courtesy of MAZDA MOTORS CORP.
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