Pinpoint Test H : The A/C (Air Conditioning) Is Inoperative: Notes

Refer to AUTOMATIC CLIMATE CONTROL SYSTEM for schematic and connector information.

Normal Operation and Fault Conditions 

Control System Logic. REFER to: Climate Control System - Vehicles With: Dual Automatic Temperature Control (DATC) 

• Wiring, terminals or connectors
• A/C system discharged or low refrigerant charge
• Network concerns
• A/C pressure transducer
• Evaporator temperature sensor
• Electric cooling fan
• Intake Air Temperature (IAT) / Mass Air Flow (MAF) sensor
• Active grille shutters (if equipped)
• A/C compressor clutch air gap
• A/C compressor clutch field coil
• A/C clutch relay
• HVAC control module

Visual Inspection and Diagnostic Pre-checks 

• Inspect BJB fuses 23 (5A) and 27 (15A).
• Inspect the A/C clutch relay.