DTC P0103: Notes
DTC P0103 DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P0103 |
MAF circuit high input |
| DETECTION CONDITION |
- PCM monitors input voltage from MAF sensor when engine is running. If input voltage at PCM terminal 1AK is above 4.9 V
, PCM determines that MAF circuit has a malfunction.
Diagnostic support note
- This is a continuous monitor (CCM).
- MIL illuminates if PCM detects the above malfunction condition during first drive cycle.
- PENDING CODE is available if PCM detects the above malfunction condition.
- FREEZE FRAME DATA is available.
- DTC is stored in the PCM memory.
|
| POSSIBLE CAUSE |
- MAF sensor malfunction
- Connector or terminal malfunction
- Short to power supply in wiring harness between MAF/IAT sensor terminal C and PCM terminal 1AK
- Open circuit in MAF/IAT sensor ground circuit
- PCM malfunction
|
 Courtesy of MAZDA MOTORS CORP.
|