Code Enable Criteria
- Engine is cranking for 0.5 second or running for one second.
- Engine speed is more than 50 RPM.
- Ignition 1 signal is greater than 8 volts.
- Idle Air Control (IAC) position is more than 5 counts.
- All these conditions are present for greater than one second.
DTC sets when MAF sensor frequency signal is less than 1200 Hz for more than 12 seconds.