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DTC P0108: Notes

DTC P0108 (LF, L3) DETECTION CONDITION AND 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 is above 4.92 V, the PCM determines that the MAP sensor circuit has malfunction.

    MONITORING CONDITIONS 

    • Calculated load: 13-32 % 

Diagnostic support note 
  • This is a continuous monitor (CCM).
  • The MIL illuminates if the PCM detects the above malfunction condition during first drive cycle.
  • PENDING CODE is available if the PCM detects the above malfunction condition.
  • FREEZE FRAME DATA is available.
  • DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • MAP sensor malfunction
  • Connector or terminal malfunction
  • Open circuit in wiring harness between MAP sensor terminal A and PCM terminal 2AY(1), 2AA(2), 2P(3)
  • Open circuit in wiring harness between MAP sensor terminal D and PCM terminal 2AG(1)(3), 2AL(2)
  • MAP sensor signal circuit shorts to constant voltage supply circuit
  • PCM malfunction
G04954279Courtesy of MAZDA MOTORS CORP.
(1) California emission regulation applicable model
(2) Except for California emission regulation applicable model with LF ATX
(3) Except for California emission regulation applicable model with LF MTX, L3