GM OBD Trouble Code 69
A/C Clutch Relay circuit error (open circuit indicated)
A/C High Pressure switch error
- Depending on the model, code 69 can refer to two different systems.
- Please choose from one of the above links for specific information on each system.
A/C Clutch Relay circuit error (open circuit indicated)
The ECM monitors the A/C compressor relay control circuit. If the control circuit is open the ECM will set code 69 and the A/C compressor operation will be disabled.
Fault Code Description
- 69 - A/C clutch relay circuit error (open circuit indicated)
Symptoms
- Poor A/C performance
Common Problems
- Open wiring to A/C compressor relay
- Faulty A/C compressor relay
A/C High Pressure switch error
The ECM monitors the A/C system pressure. If the system pressure becomes to high code 69 will set and the A/C compressor operation will be disabled.
Fault Code Description
- 69 - A/C High Pressure switch error
Symptoms
- Poor A/C performance
Common Problems
- Faulty A/C Pressure switch
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