Climate Control System

Climate Control System

Inspection and Verification

NOTE: All Air Conditioning (A/C) related tests should be run in an ambient temperature of at least 10 degrees C (50 degrees F).

1. Verify the customer concern by operating the system.
2. Visually inspect for obvious signs of damage and system integrity.

Mechanical Electrical
Coolant level Fuse(s)
Refrigerant leaks (UV lamp) Circuit
Drive belt Blower motor
Compressor Electrical connector(s)
Cooling fan Compressor
Control flap(s) Cooling fan
Duct(s) Actuators
Register(s) Climate control assembly
Cabin air filter
Coolant pump

3. Listen for any unusual noises during climate control system operation.
4. Inspect the refrigerant system with an ultraviolet (UV) lamp for traces of UV sensitive leak trace dye.
5. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
6. If the cause is not visually evident, verify the symptom and refer to the manufacturer approved diagnostic system.