P041F

DTC P041F, sometimes indicated as P041F00 is an OBD diagnostic trouble code indicating a generic fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the auxiliary emissions system causing secondary air injection system switching valve "a" circuit low.

This code means that the PCM has detected a low voltage condition in the secondary air injection system switching valve "A" circuit.
Possible causes of this code include a defective switch valve, a wiring problem, a bad PCM, or a defective air pump.
If you have this code, check the switch valve, the wiring, and the air pump for defects. If everything looks good, then you may need to have the PCM replaced.

• P041F: Secondary Air Injection System Switching Valve "A" Circuit Low
• P041F: Secondary air injection (AIR) switching valve A – circuit low
• P041F 00: Secondary air injection (AIR) switching valve A - circuit low