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 mass intake air amount is above 50 l/s
for 5 s
and engine speed is below 2, 000 RPM
with engine running PCM determines that detected mass intake air flow amount is too high.
- If mass intake air flow amount is below 8-59 l/s , 6-58 l/s
(The value depends on engine speed). for 5 s
and engine speed is above 1, 000 RPM
with engine running and throttle opening angle is above 50%,
PCM determines that detected mass intake air flow amount is too low.
Diagnostic support note
- This is a continuous monitor (CCM).
- MIL illuminates if PCM detects above malfunction condition in two consecutive drive cycles or in one drive cycle while DTC for the same malfunction has been stored in PCM.
- PENDING CODE is available if PCM detects the above malfunction condition during first drive cycle.
- FREEZE FRAME DATA is available.
- DTC is stored in the PCM memory.
|
| POSSIBLE CAUSE |
- MAF sensor malfunction
- Electrical corrosion in MAF RETURN circuit
- Voltage drops in GND circuit
|