Circuit/System Verification

WARNING: This page is about a different car, the 2017 Chevrolet Spark. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Check for bulletins before proceeding.

Ignition ON.
Verify the A/C compressor and the recirculation door are not both inoperative.
- If the A/C compressor and the recirculation door are both inoperative
  Refer to System/Circuit Testing.
- If the A/C compressor and the recirculation door are not both inoperative
Verify the blower motor operates properly with the blower motor switch in each speed position.
- If the blower motor does not operate properly in each speed position
  Refer to Blower Motor Malfunction .
- If the blower motor operates properly in each speed position
Verify the air inlet door works properly when commanded.
- If the air inlet door does not work properly
  Refer to Air Recirculation Malfunction .
- If the air inlet door does work properly
Install the J43600 ACR Air Conditioning Service Center, ignition ON.
Verify the high side pressure reading on the Air Conditioning Service Center is within 10% of the scan tool BCM A/C High Side Pressure Sensor parameter.
- If the reading is not within 10%
  Refer to DTC P0532 or P0533 .
- If the reading is within 10%
Verify the scan tool A/C High Side Pressure Sensor parameter is between 269-2929 kPa (39-425 PSI).
- If the reading is not between 269-2929 kPa (39-425 PSI)
  Refer to Air Conditioning (A/C) System Performance Test .
- If the reading is between 269-2929 kPa (39-425 PSI)
Verify the scan tool BCM A/C Evaporator Temperature Sensor parameter listed is within 10% of ambient temperature.
- If not within 10% of ambient temperature
  Refer to DTC B3933 .
- If within 10% of ambient temperature
Engine ON, A/C system ON
Verify cool air flows from the ducts with the temperature control in the coldest position.
- If the air is not cool
1. Verify the Q2 A/C Compressor Clutch is engaged.
  - If the Q2 A/C Compressor Clutch is not engaged, refer to Air Conditioning Compressor Malfunction .
  - If the Q2 A/C Compressor Clutch is engaged, refer to Air Conditioning (A/C) System Performance Test .
- If the air is cool
Verify warm air flows from the ducts with the temperature control in the warmest position.
- If the air is not warm
  Refer to Symptoms - Engine Cooling .
- If the air is warm
All OK.