Charge Air Cooler Temperature Sensor Circuit Range/Performance Bank 1
Charge air cooler temperature sensor reading on bank 1 is electrically valid but implausible — does not match expected behavior under load, ambient conditions or after long soak.
Affected components
- Cac temperature sensor
- Intercooler
Common causes
- High likelihood: Sensor reading drifted
- Low likelihood: Sensor element aged beyond calibration window
- Low likelihood: Sensor mounting loose - signal damping
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.