OBD Guide

P0D79

A/C Compressor Control Module Output Driver Temperature Sensor Circuit Intermittent/Erratic

P0D79 is an OBD-II diagnostic trouble code meaning: A/C Compressor Control Module Output Driver Temperature Sensor Circuit Intermittent/Erratic. Common causes: open or short circuit in wiring harness, oxidized or damaged connector contacts. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Intermittent operation of the air conditioner
  • The air conditioning compressor suddenly turns off
  • Reduced cooling efficiency
  • Hot air from ducts
  • The air conditioning indicator is flashing

Causes

  • Open or short circuit in wiring harness
  • Oxidized or damaged connector contacts
  • Faulty control module temperature sensor
  • Problems with the compressor control module
  • Poor circuit grounding

How to Fix

  1. Check the integrity of the wiring and connectors in the sensor circuit
  2. Clean the contacts from corrosion and ensure a reliable connection
  3. Test the temperature sensor with a multimeter
  4. If necessary, replace the temperature sensor
  5. Check and reflash the compressor control module

Related codes

Error P0D79 by Vehicle Brand

FAQ

What does the P0D79 code mean?

P0D79 is an OBD-II diagnostic trouble code that indicates: A/C Compressor Control Module Output Driver Temperature Sensor Circuit Intermittent/Erratic

What causes a P0D79 error code?

The most common causes of P0D79 include: Open or short circuit in wiring harness; Oxidized or damaged connector contacts; Faulty control module temperature sensor; Problems with the compressor control module.

How do I fix a P0D79 diagnostic trouble code?

To fix P0D79: Check the integrity of the wiring and connectors in the sensor circuit. Clean the contacts from corrosion and ensure a reliable connection. Test the temperature sensor with a multimeter. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0D79?

Yes, but get it checked soon

How much does it cost to fix P0D79?

The estimated repair cost for P0D79 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat