OBD Guide

U02C0

Lost Communication With Active Radiator Air Flow Control Module A

U02C0 is an OBD-II diagnostic trouble code meaning: Lost Communication With Active Radiator Air Flow Control Module A. Common causes: open or short circuit in the module power supply circuit, damage to the wiring harness to the module. Estimated repair cost: $28–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$28–167 (est.)

Symptoms

  • Check Engine Light Is On
  • Possible problems with engine cooling
  • Reduced cooling system efficiency
  • Incorrect engine temperature readings
  • Errors in climate control operation

Causes

  • Open or short circuit in the module power supply circuit
  • Damage to the wiring harness to the module
  • Radiator control module malfunction
  • Problems with the CAN bus
  • ECU software errors

How to Fix

  1. Check fuses associated with the module
  2. Inspect the wiring harness for damage
  3. Check the power supply and ground of the module
  4. Scan the CAN bus for errors
  5. If necessary, replace the control module

Related codes

Error U02C0 by Vehicle Brand

FAQ

What does the U02C0 code mean?

U02C0 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Active Radiator Air Flow Control Module A

What causes a U02C0 error code?

The most common causes of U02C0 include: Open or short circuit in the module power supply circuit; Damage to the wiring harness to the module; Radiator control module malfunction; Problems with the CAN bus.

How do I fix a U02C0 diagnostic trouble code?

To fix U02C0: Check fuses associated with the module. Inspect the wiring harness for damage. Check the power supply and ground of the module. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U02C0?

Limited driving only, diagnose soon

How much does it cost to fix U02C0?

The estimated repair cost for U02C0 is $28–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat