DTC P0103: Notes
DTC P0103 [AJ] DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P0103 |
MAF circuit high input |
| DETECTION CONDITION |
- PCM monitors input voltage from MAF sensor when engine running. If input voltage at PCM terminal 11 is above 4.8 V
, PCM determines that MAF circuit has a malfunction.
Diagnostic support note
- This is a continuous monitor (CCM).
- The MIL illuminates if the PCM detects the above malfunction condition in the 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.
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| POSSIBLE CAUSE |
- MAF sensor malfunction
- Connector or terminal malfunction
- Short to power in wiring between MAF/IAT sensor terminal E and PCM terminal 11
- Open circuit in wiring between MAF/IAT sensor terminal D and PCM terminal 10
- Open circuit in MAF/IAT sensor ground circuit
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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