P00A4

Charge Air Cooler Temperature Sensor Circuit Intermittent/Erratic Bank 2

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Unstable engine operation
Power reduction
Increased fuel consumption
Check Engine Light Illuminates

Causes

Damage to the wiring or sensor connector
Charge air cooler temperature sensor malfunction
Short circuit or open circuit in the sensor circuit
Circuit Grounding Problems

How to Fix

Check the integrity of the sensor wiring and connectors
Check the resistance of the charge air cooler temperature sensor
Check voltage and grounding in the sensor circuit
Replace charge air cooler temperature sensor if necessary
Clear error codes and check if error is returned

Related codes

P00A3 P00A5 P00A6