OBD Guide

P15C8

Electric A/C Compressor Data Message Counter Incorrect

P15C8 is an OBD-II diagnostic trouble code meaning: Electric A/C Compressor Data Message Counter Incorrect. Common causes: problems with the wiring harness to the compressor, electrical air conditioning compressor malfunction. Estimated repair cost: $167–500.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$167–500 (est.)

Symptoms

  • Air conditioner doesn't work
  • Hot air from vents
  • Check Engine light comes on
  • Reduced cooling efficiency
  • Possible noise from the compressor

Causes

  • Problems with the wiring harness to the compressor
  • Electrical air conditioning compressor malfunction
  • Problems with the engine control unit
  • Corrosion or poor contact in connectors
  • Software error in ECU

How to Fix

  1. Check the integrity of the wiring harness to the compressor
  2. Diagnose the condition of the electric compressor
  3. Check connections and connectors for corrosion
  4. Update ECU software
  5. If necessary, replace the air conditioning compressor

Related codes

FAQ

What does the P15C8 code mean?

P15C8 is an OBD-II diagnostic trouble code that indicates: Electric A/C Compressor Data Message Counter Incorrect

What causes a P15C8 error code?

The most common causes of P15C8 include: Problems with the wiring harness to the compressor; Electrical air conditioning compressor malfunction; Problems with the engine control unit; Corrosion or poor contact in connectors.

How do I fix a P15C8 diagnostic trouble code?

To fix P15C8: Check the integrity of the wiring harness to the compressor. Diagnose the condition of the electric compressor. Check connections and connectors for corrosion. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P15C8?

Yes, but get it checked soon

How much does it cost to fix P15C8?

The estimated repair cost for P15C8 is $167–500. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat