What does code P00AC mean?

Q: What does code P00AC mean?

Intake Air Temperature Sensor 1 Circuit Low Bank 2. P00AC means the engine control module has detected an abnormally low voltage signal from the intake air temperature sensor on bank 2, which is the sensor that measures the temperature of the air entering that bank of the engine. The computer expects the sensor's signal voltage to stay within a calibrated range, and a low voltage typically indicates a short to ground, a faulty sensor, or a wiring problem.

DTC codes / P00xx · Fuel and air metering and auxiliary emission controls / P00AC

P00ACIntake Air Temperature Sensor 1 Circuit Low Bank 2

P00AC means the engine control module has detected an abnormally low voltage signal from the intake air temperature sensor on bank 2, which is the sensor that measures the temperature of the air entering that bank of the engine. The computer expects the sensor's signal voltage to stay within a calibrated range, and a low voltage typically indicates a short to ground, a faulty sensor, or a wiring problem.

SystemPowertrain

Code typeGeneric (all makes)

SeverityLow

Fix difficultyIntermediate

AreaFuel and air metering and auxiliary emission controls

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.