OBD Guide

U355C

Charge Air Cooler Outlet Temperature Sensor Circuit

U355C is an OBD-II diagnostic trouble code meaning: Charge Air Cooler Outlet Temperature Sensor Circuit. Common causes: temperature sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.

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

  1. Check the integrity of the temperature sensor
  2. Check the resistance and voltage in the sensor circuit
  3. Inspect connectors and contacts for damage
  4. Clean contacts from corrosion
  5. If necessary, replace the temperature sensor

Related codes

Error U355C by Vehicle Brand

FAQ

What does the U355C code mean?

U355C is an OBD-II diagnostic trouble code that indicates: Charge Air Cooler Outlet Temperature Sensor Circuit

What causes a U355C error code?

The most common causes of U355C include: Temperature sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in connectors; Contact corrosion.

How do I fix a U355C diagnostic trouble code?

To fix U355C: Check the integrity of the temperature sensor. Check the resistance and voltage in the sensor circuit. Inspect connectors and contacts for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U355C?

Limited driving only, diagnose soon

How much does it cost to fix U355C?

The estimated repair cost for U355C is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat