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Home >> Mazda >> 2007 >> 5 Touring, 2.3 L >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic [Engine Control System L3) >> DTC P0102 >> Notes
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DTC P0102: Notes

DTC P0102 DETECTION CONDITION AND POSSIBLE CAUSES

DTC P0102 MAF sensor circuit low Input
DETECTION CONDITION 
  • The PCM monitors input voltage from the MAF sensor when the engine running. If the input voltage at PCM terminal 1AC is below 0.21 V  , the PCM determines that the MAF circuit has malfunction.

    • Diagnostic support note 

  • This is a continuous monitor (CCM).
  • MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
  • FREEZE FRAME DATA is available.
  • DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • MAF sensor malfunction
  • Connector or terminal malfunction
  • Short to ground in wiring harness between MAF/IAT sensor terminal C and PCM terminal 1 AC
  • Open circuit in wiring harness between MAF/IAT sensor terminal C and PCM terminal 1AC
  • Open circuit in wiring harness between main relay and MAF/IAT sensor terminal A
  • PCM malfunction
G04315699
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