DTC P0101: Notes
DTC P0101 [L3] DETECTION CONDITIONS AND POSSIBLE CAUSES
| DTC P0101 |
MAF sensor circuit range/performance problem |
| DETECTION CONDITION |
- When the conditions are as follows, the PCM compares the intake airflow amount with the estimated intake airflow amount (calculated from the barometric pressure, MAP sensor and throttle opening angle).
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 (Mode 2/Mode12) is available.
- DTC is stored in the PCM memory.
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| POSSIBLE CAUSE |
- MAF sensor connector or terminal malfunction
- MAF sensor malfunction
- Electrical corrosion in MAF RETURN circuit
- Voltage drops in ground circuit
- PCM connector or terminal malfunction
- PCM malfunction
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