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DTC P2101 [LF]: Notes

DTC P2101 (LF) DETECTION CONDITION AND POSSIBLE CAUSE

DTC P2101 Throttle valve actuator circuit range/performance problem
DETECTION CONDITION 
  • The PCM monitors the input voltage from the drive-by-wire relay when the PCM turns the drive-by-wire relay on. If the input voltage is less than 5.0 V  , the PCM determines that the drive-by-wire relay control circuit voltage is low.
  • The PCM monitors the input voltage from the drive-by-wire relay when the PCM turns the drive-by-wire relay off. If the input voltage is more than 5.0 V  the PCM determines that the drive-by-wire relay control circuit voltage is high.

Diagnostic support note 
  • This is a continuous monitor (CCM).
  • The MIL illuminates if the PCM detects the above malfunction conditions during the first drive cycle.
  • FREEZE FRAME DATA (Mode 2/Mode 12) is available.
  • The DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • Main relay and/or drive-by-wire relay malfunction
  • PCM connector or terminals malfunction
  • Main relay related fuse malfunction
  • Main relay related wiring harness malfunction
  • Drive-by-wire relay related wiring harness malfunction
  • Throttle body connector or terminals malfunction
  • TP sensor No. 1/No. 2 related wiring harness malfunction
  • TP sensor No. 1/No. 2 malfunction
  • PCM malfunction
G06150002Courtesy of MAZDA MOTORS CORP.
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