DTC P0101: Notes
DTC P0101 DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P0101 |
MAF circuit range/performance problem |
| DETECTION CONDITION |
- PCM monitors the mass intake air flow amount when the engine is running.
- If the mass intake air amount is above 71.8 l/s for 6 s
and engine speed is below 2, 00 RPM
with the engine running, the PCM determines that detected mass intake air flow amount is too high.
- If the mass intake air flow amount is below 9.7-87.3 l/s
(The value depends on engine speed). for 6 s
and the engine speed is above 1, 00
RPM with engine running and the throttle opening angle is above 50%,
the PCM determines that the detected mass intake air flow amount is too low.
Diagnostic support note
- This is a continuous monitor (CCM).
- MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
- PENDING CODE is available 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
- Electrical corrosion in MAF RETURN circuit
- Voltage drops in the ground circuit
|