P0541

DTC P0541, sometimes indicated as P054100 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 engine idling stability causing intake air heater "a" circuit low.

The Intake Air Heater "A" Circuit Low may be caused by a defective Intake Air Heater "A" Circuit, a defective Intake Air Heater "A" Control, a defective Intake Air Heater "A" Sensor, a defective Intake Air Heater "A" Switch, or a defective wiring harness.
The Intake Air Heater "A" Circuit Low may also be caused by a defective Engine Control Module (ECM), a defective Powertrain Control Module (PCM), or a defective Vehicle Control Module (VCM).

• P0541: Intake Air Heater A Circuit Low
• P0541: Intake Air Heater "A" Circuit Low
• P0541: Intake Air Heater "A" Circuit Low 1
• P0541: Intake air heater A – circuit low
• P0541 00: Inlet air heater control system - low signal
• P0541 00: Intake air heater A - circuit low