OBD Guide

P2D29

A/C Compressor Motor Stalled

P2D29 is an OBD-II diagnostic trouble code meaning: A/C Compressor Motor Stalled. Common causes: mechanical blocking of the compressor, compressor motor malfunction. Estimated repair cost: $56–278.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–278 (est.)

Symptoms

  • Air conditioner doesn't work
  • Increased noise from the compressor before shutting down
  • Hot air from ventilation
  • Check Engine light comes on
  • Reduced cooling efficiency before complete failure

Causes

  • Mechanical blocking of the compressor
  • Compressor motor malfunction
  • Problems with wiring or connectors
  • Faulty relays or fuses
  • Climate control unit error

How to Fix

  1. Check fuses and compressor relays
  2. Diagnose the motor power supply circuit
  3. Check the mechanical condition of the compressor
  4. Test the compressor motor
  5. Check control unit software

Related codes

Error P2D29 by Vehicle Brand

FAQ

What does the P2D29 code mean?

P2D29 is an OBD-II diagnostic trouble code that indicates: A/C Compressor Motor Stalled

What causes a P2D29 error code?

The most common causes of P2D29 include: Mechanical blocking of the compressor; Compressor motor malfunction; Problems with wiring or connectors; Faulty relays or fuses.

How do I fix a P2D29 diagnostic trouble code?

To fix P2D29: Check fuses and compressor relays. Diagnose the motor power supply circuit. Check the mechanical condition of the compressor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2D29?

Yes, but get it checked soon

How much does it cost to fix P2D29?

The estimated repair cost for P2D29 is $56–278. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat