Air Conditioning System Performance Check

When a failure symptom has been reproduced, refer to the symptom chart. After completing a repair, the air conditioning performance check should be repeated to confirm that the repair is successful.

1. Close the valves on the air conditioning station
2. Connect the air conditioning station to the vehicle charging ports
3. Check that the gauges register pressure
4. Open all doors and the tailgate
5. Start the engine
6. Set the temperature to the lowest setting (all zones)
7. Set the blower speed to maximum
8. Set the recirculate switch to on
9. Set the air conditioning to on and check that the air conditioning compressor clutch engages and that the gauges register a change in pressure
10. Insert a temperature probe into the center air vent
11. Raise engine speed to 1500rpm and maintain this speed for 5 minutes
12. Check the pressure gauge readings

1. Check the temperature reading