Too Hot In Vehicle - Primary
TOO HOT IN VEHICLEDIAGNOSTIC AIDS
- The condition may be intermittent.
- The air temperature actuators can be calibrated.
TEST DESCRIPTION
Steps 1-4:
Steps 5-8:
Steps 9-11:
Steps 12-13:
Step 14:
Steps 15-19:
Steps 20-24:
Steps 25-31:
The numbers below refer to the step numbers on the diagnostic table.
6. The ambient air temperature display must be above 5°C (40°F) in order for this A/C compressor test to be run. Refer to Ambient Air Temperature Update Procedure if display reads less than 5°C (40°F).
8. This step ensures that the lower air temperature sensors operate properly. The LH and RH Heater Duct Actual parameter count values should lower as the air temperature of the ducts get warmer. If there is a high resistance in either of the air temperature sensors circuits or the sensor itself then the count value of the effected sensor would remain high.
9. This step ensures that the upper air temperature sensors operate properly. The LH and RH AC Duct Actual parameter count values should lower as the air temperature of the ducts get warmer. If there is a high resistance in either of the air temperature sensors circuits or the sensor itself then the count value of the effected sensor would remain high.
11. This action ensures that the internal fan of the inside air temperature sensor assembly is providing air flow across the internal sensor.
14. Use the following table to determine that the recorded scan tool values are within range for the recorded probe temperatures of the J 43600 ACR Air Conditioning Service Center.