OBD Guide

U350E

Control Module Cooling Fan Circuit High

U350E is an OBD-II diagnostic trouble code meaning: Control Module Cooling Fan Circuit High. Common causes: cooling fan malfunction, wiring harness damage. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Control module overheating
  • Unstable engine operation
  • Check Engine Light Illuminates
  • Reduced vehicle performance
  • Cooling fan noise

Causes

  • Cooling fan malfunction
  • Wiring harness damage
  • Short circuit in the circuit
  • Control module malfunction
  • Fan relay problems

How to Fix

  1. Check the condition of the cooling fan
  2. Inspect the wiring harness for damage
  3. Check fan relay
  4. Diagnose the control module
  5. Replace faulty components

Related codes

Error U350E by Vehicle Brand

FAQ

What does the U350E code mean?

U350E is an OBD-II diagnostic trouble code that indicates: Control Module Cooling Fan Circuit High

What causes a U350E error code?

The most common causes of U350E include: Cooling fan malfunction; Wiring harness damage; Short circuit in the circuit; Control module malfunction.

How do I fix a U350E diagnostic trouble code?

To fix U350E: Check the condition of the cooling fan. Inspect the wiring harness for damage. Check fan relay. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U350E?

Limited driving only, diagnose soon

How much does it cost to fix U350E?

The estimated repair cost for U350E is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat