DTC P0102 [LF]: Notes
DTC P0102 (LF) DETECTION CONDITION AND POSSIBLE CAUSE
| DTC P0102 |
MAF sensor circuit low input |
| DETECTION CONDITION |
- The PCM monitors input voltage from the MAF sensor when the engine running. If the input voltage is below 0.21 V
, the PCM determines that the MAF sensor circuit has a malfunction.
Diagnostic support note
- This is a continuous monitor (CCM).
- The MIL illuminates if the PCM detects the above malfunction condition during first drive cycle.
- FREEZE FRAME DATA (Mode 2/Mode 12) is available.
- The DTC is stored in the PCM memory.
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| POSSIBLE CAUSE |
- MAF/IAT sensor connector or terminals malfunction
- Open circuit or short to ground in MAF sensor power supply circuit
- Short to ground in wiring harness between main relay and MAF/IAT sensor terminal A
- MAF sensor power supply circuit related fuse malfunction
- Open circuit in wiring harness between main relay and MAF/IAT sensor terminal A
- MAF sensor malfunction
- Short to ground in wiring harness between MAF/IAT sensor terminal C and PCM terminal 1 AK
- PCM connector or terminals malfunction
- Open circuit in wiring harness between MAF/IAT sensor terminal C and PCM terminal 1 AK
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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