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DTC P0108: Notes

DTC P0108[L3 WITH TC] DETECTION CONDITION AND POSSIBLE CAUSES

DTC P0108 MAP sensor circuit high Input
DETECTION CONDITION 
  • PCM monitors input voltage from the MAP sensor when the intake air temperature is above -10 °C {14 °F}.  If the input voltage is above 4.9 V,  the PCM determines that MAP sensor circuit has a 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.
  • DTCs are stored in the PCM memory.
POSSIBLE CAUSE 
  • MAP sensor malfunction
  • Connector or terminal malfunction
  • Open circuit in the wiring harness between MAP sensor terminal A and PCM terminal 2AV
  • Open circuit in the wiring harness between MAP sensor terminal D and PCM terminal 2AG
  • MAP sensor signal circuit short to the constant voltage supply circuit
  • PCM malfunction
G04859365Courtesy of MAZDA MOTORS CORP.
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