P0D79

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

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

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
If necessary, replace the temperature sensor
Check and reflash the compressor control module

Related codes

P0D7A P0D78 P0D77