2006 Mazda MX-5 Miata BaseFACTORY OEM SERVICE PROCEDURE

DTC P0108: Notes

DETECTION CONDITION AND POSSIBLE CAUSE (DTC P0108)

DTC P0108 MAP sensor circuit high input
DETECTION CONDITION 
  • The PCM monitors the input voltage from the MAP sensor when 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 a 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.
  • The 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 2AV
  • Open circuit in wiring harness between MAP sensor terminal D and PCM terminal 2AG
  • MAP sensor signal circuit shorts to constant voltage supply circuit
  • PCM malfunction
G04317701Courtesy of MAZDA MOTORS CORP.
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