OBD Guide

B2653

Electric Compressor Thermo Failure

B2653 is an OBD-II diagnostic trouble code meaning: Electric Compressor Thermo Failure. Common causes: open or short circuit in wiring harness, compressor temperature sensor malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Air conditioning system failure
  • Reduced cooling efficiency
  • Hot air from ducts
  • Malfunction indicator lamp on the dashboard

Causes

  • Open or short circuit in wiring harness
  • Compressor temperature sensor malfunction
  • Problems with the HVAC control unit
  • Poor contact in connectors

How to Fix

  1. Diagnosing error codes with an OBD-II scanner
  2. Checking the temperature sensor resistance
  3. Inspection of the condition of the wiring harness and connectors
  4. Replacing the temperature sensor if necessary
  5. Flashing/replacing the HVAC control unit if a malfunction is detected

Related codes

FAQ

What does the B2653 code mean?

B2653 is an OBD-II diagnostic trouble code that indicates: Electric Compressor Thermo Failure

What causes a B2653 error code?

The most common causes of B2653 include: Open or short circuit in wiring harness; Compressor temperature sensor malfunction; Problems with the HVAC control unit; Poor contact in connectors.

How do I fix a B2653 diagnostic trouble code?

To fix B2653: Diagnosing error codes with an OBD-II scanner. Checking the temperature sensor resistance. Inspection of the condition of the wiring harness and connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2653?

Yes, but get it checked soon

How much does it cost to fix B2653?

The estimated repair cost for B2653 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat