Conditions for Setting the DTCs

P00F4 

The ECM detects that the humidity sensor signal is less than or equal to 5% for greater than 5s.

P00F5 

The ECM detects that the humidity sensor signal is greater than or equal to 95% for greater than 5s.

P00F6 

The ECM monitors the humidity sensor signal every 0.1s, to determine if the signal has changed more than 80 %. The DTC fails when the condition exists for longer than 4s.