P0D78
A/C Compressor Control Module Output Driver Temperature Sensor Circuit Low
P0D78 is an OBD-II diagnostic trouble code meaning: A/C Compressor Control Module Output Driver Temperature Sensor Circuit Low. Common causes: open or short circuit in the sensor circuit, poor contact in connectors. Estimated repair cost: $17–56.
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
Error P0D78 by Vehicle Brand
FAQ
What does the P0D78 code mean?
P0D78 is an OBD-II diagnostic trouble code that indicates: A/C Compressor Control Module Output Driver Temperature Sensor Circuit Low
What causes a P0D78 error code?
The most common causes of P0D78 include: Open or short circuit in the sensor circuit; Poor contact in connectors; Temperature sensor malfunction; Problems with the compressor control module.
How do I fix a P0D78 diagnostic trouble code?
To fix P0D78: Check the continuity of the temperature sensor circuit. Inspect and clean connector contacts. Check the resistance of the temperature sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0D78?
Yes, but get it checked soon
How much does it cost to fix P0D78?
The estimated repair cost for P0D78 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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