OBD Guide

U355B

Charge Air Cooler Outlet Pressure Sensor 2 Circuit

U355B is an OBD-II diagnostic trouble code meaning: Charge Air Cooler Outlet Pressure Sensor 2 Circuit. Common causes: open or short circuit in the sensor circuit, malfunction of the pressure sensor itself. Estimated repair cost: $28–89.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Unstable engine idling
  • Increased fuel consumption
  • Turbocharging does not work correctly

Causes

  • Open or short circuit in the sensor circuit
  • Malfunction of the pressure sensor itself
  • Poor contact in the sensor connector
  • Wiring harness damage
  • Problems with the engine ECU

How to Fix

  1. Check the integrity of the sensor wires and connectors
  2. Test the pressure sensor with a multimeter
  3. Check for breaks and short circuits in the circuit
  4. Replace the faulty sensor if necessary
  5. Reset error code after repair

Related codes

Error U355B by Vehicle Brand

FAQ

What does the U355B code mean?

U355B is an OBD-II diagnostic trouble code that indicates: Charge Air Cooler Outlet Pressure Sensor 2 Circuit

What causes a U355B error code?

The most common causes of U355B include: Open or short circuit in the sensor circuit; Malfunction of the pressure sensor itself; Poor contact in the sensor connector; Wiring harness damage.

How do I fix a U355B diagnostic trouble code?

To fix U355B: Check the integrity of the sensor wires and connectors. Test the pressure sensor with a multimeter. Check for breaks and short circuits in the circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U355B?

Limited driving only, diagnose soon

How much does it cost to fix U355B?

The estimated repair cost for U355B is $28–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat