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Home >> Mazda >> 2009 >> 5 Touring, 2.3 L >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic [Engine Control System L3] >> DTC P0108 [L3] >> Notes

DTC P0108 [L3]: Notes

DTC P0108 (L3) DETECTION CONDITION & POSSIBLE CAUSES

DTC P0108 MAP sensor circuit high input
DETECTION CONDITION 
  • The PCM monitors the input voltage from the MAP sensor when the intake air temperature is above -10°C {14°F}  . If input the voltage at PCM terminal 2AG is above 4.92 V  for 5s, the PCM determines that the MAP sensor 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 
  • MAP sensor connector or terminal malfunction
  • MAP sensor signal circuit shorts to constant voltage supply circuit
  • MAP sensor malfunction
  • Open circuit in wiring harness between MAP sensor terminal A and PCM terminal 2AV
  • Open circuit in wiring harness between MAP sensor terminal D and PCM terminal 2AG
  • PCM malfunction
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