P00A4

DTC P00A4, sometimes indicated as P00A400 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 air/fuel mixture causing charge air cooler temperature sensor circuit intermittent/erratic bank 2.

This code may be caused by a number of things, including a faulty charge air cooler temperature sensor, a short or open circuit in the wiring, a faulty ECM, or a problem with the charge air cooler itself.
If the charge air cooler temperature sensor is at fault, it may need to be replaced. If there is a short or open circuit in the wiring, the wiring should be checked and repaired as necessary. If the ECM is at fault, it may need to be replaced. If there is a problem with the charge air cooler, it may need to be repaired or replaced.

• P00A4: Charge Air Cooler Temperature Sensor Circuit Intermittent/Erratic Bank 2
• P00A4: Charge Air Cooler Temperature Sensor Circuit Intermittent/Erratic
• P00A4: Turbocharger (TC) intercooler temperature sensor – circuit intermittent/erratic, bank 2
• P00A4 00: Turbocharger (TC) intercooler temperature sensor - circuit intermittent/erratic, bank 2