P0D78

A/C Compressor Control Module Output Driver Temperature Sensor Circuit Low

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Air conditioner doesn't work
Intermittent operation of the air conditioner
Hot air from ventilation
Check Engine light comes on
Noise from the air conditioning compressor

Causes

Open or short circuit in the sensor circuit
Poor contact in connectors
Temperature sensor malfunction
Problems with the compressor control module
Contact corrosion

How to Fix

Check the continuity of the temperature sensor circuit
Inspect and clean connector contacts
Check the resistance of the temperature sensor
If necessary, replace the temperature sensor
Check the operation of the compressor control module

Related codes

P0D79 P0D77 P0532