Circuit/System Verification

Ignition - On/Vehicle - In Service Mode
Verify no other DTCs are set.
- If any other DTCs are set
  Diagnose other DTCs first.
- Go to next step: If no other DTCs are set
Verify DTC P0072, P0073, P0074 is not set.
- If DTC P0072, P0073, P0074 is set
  Refer to: Circuit/System Testing
- Go to next step: If DTC P0072, P0073, P0074 is not set
Install the special tool: GE-50300 ACR Air Conditioning Service Center
Verify the high side pressure reading on the Air Conditioning Service Center is within 10% of the scan tool Hybrid/EV Powertrain Control Module 2 A/C High Side Pressure Sensor parameter.
- If not within 10% of each other
  Refer to: DTC P0532 or P0533
- Go to next step: If within 10% of each other
Verify the scan tool parameter: Ambient Air Temperature = -40 to 88°C (-40 to 190°F) and changes
- If not between -40 and 88°C (-40 and 190°F) or does not change
  Refer to: Circuit/System Testing
- Go to next step: If between -40 and 88°C (-40 and 190°F) and changes
Refer to: Air Conditioning (A/C) System Performance Test