P0101 Volume air flow circuit range/performance problem
DTC SET CONDITIONS:
Check Conditions:
a) Throttle position sensor output voltage is 1.5 volts or higher. Engine speed is higher than 2,000 r/min.
Judgement Criteria
Volume airflow sensor output frequency has continued to be 60 Hz or lower for 2 seconds.
b) Throttle position sensor output voltage is 2 volts or lower. Engine speed is lower than 2,000 r/min.
Judgement Criteria
Volume airflow sensor output frequency has continued to be 800 Hz or higher for 2 seconds.
TROUBLESHOOTING HINTS
(The most likely causes for this code to be set are)
- Volume airflow sensor failed.
- Open or shorted volume airflow sensor circuit, or loose connector.
- PCM failed.
- Air leak between volume airflow sensor and throttle body.
DTC SET CONDITIONS:
Check Conditions:
a) Throttle position sensor output voltage is 1.5 volts or higher. Engine speed is higher than 2,000 r/min.
Judgement Criteria
Volume airflow sensor output frequency has continued to be 60 Hz or lower for 2 seconds.
b) Throttle position sensor output voltage is 2 volts or lower. Engine speed is lower than 2,000 r/min.
Judgement Criteria
Volume airflow sensor output frequency has continued to be 800 Hz or higher for 2 seconds.
TROUBLESHOOTING HINTS
(The most likely causes for this code to be set are)
- Volume airflow sensor failed.
- Open or shorted volume airflow sensor circuit, or loose connector.
- PCM failed.
- Air leak between volume airflow sensor and throttle body.