P00A1 OBD II Trouble Code Charge Air Cooler Temperature Sensor Circuit Range Performance Bank 2
How to diagnose, repair, and info on causes of a P00A1 engine code which involves the bank 2 charge air cooler temperature sensor circuit, which has malfunctioned. Also includes links to relevant forum topics on the code.
Symptoms of P00A1 OBD II Trouble Code
- Illuminated check engine light
- Poor engine performance
- Decreased fuel economy
- Vehicle stuck in "limp" mode
- Diesel particulate filter regeneration inhibited (if equipped)
Common Causes of P00A1 OBD II Trouble Code
- Faulty sensor
- Wiring problems
- Failed or restricted charge air cooler
- Faulty PCM
Severity of P00A1 OBD II Trouble Code
The severity of these codes is moderate.