U355C

Charge Air Cooler Outlet Temperature Sensor Circuit

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–56 (est.)

Symptoms

Reduced engine power
Increased fuel consumption
Check Engine Light Is On
Unstable engine operation at high speeds
Turbocharging is ineffective

Causes

Temperature sensor malfunction
Open or short circuit in the sensor circuit
Poor contact in connectors
Contact corrosion
Problems with the ECU

How to Fix

Check the integrity of the temperature sensor
Check the resistance and voltage in the sensor circuit
Inspect connectors and contacts for damage
Clean contacts from corrosion
If necessary, replace the temperature sensor

Related codes

U355B U355D U355A