Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Mazda >> 2008 >> 3 Mazdaspeed, 2.3 L >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic [Engine Control System L3 With TC] (2 Of 5) >> DTC P0102 [L3 With TC] >> Notes

DTC P0102 [L3 With TC]: Notes

DTC P0102 [L3 WITH TC] DETECTION CONDITION AND POSSIBLE CAUSE

DTC P0102 MAF circuit low input
DETECTION CONDITION 
  • PCM monitors input voltage from the MAF sensor when engine is running. If the input voltage is below 0.21 V  , the PCM determines that the MAF 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 
  • MAF sensor malfunction
  • Connector or terminal malfunction
  • Short to ground in the wiring harness between MAF/IAT sensor terminal C and PCM terminal 1 AK
  • Open circuit in the wiring harness between MAF/IAT sensor terminal C and PCM terminal 1 AK
  • Open circuit in the wiring harness between main relay and MAF/IAT sensor terminal A
G04954360Courtesy of MAZDA MOTORS CORP.
scientia non olet · About Mike's Workshop Manuals