Pinpoint Test K : The A/C (Air Conditioning) Is Inoperative: Notes
WARNING: This page is about a different car, the 2017 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
Refer to Manual Climate Control System for schematic and connector information.
Normal Operation and Fault Conditions
Refer to A/C Request. REFER to: Climate Control System - Vehicles With: Electronic Manual Temperature Control (EMTC) - System Operation and Component Description .
Possible Sources
- Wiring, terminals or connectors
- A/C system discharged or low refrigerant charge
- Network concerns
- A/C pressure transducer
- Evaporator temperature sensor
- In-vehicle temperature sensor
- Discharge air temperature sensors (if equipped)
- 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 for loose or corroded PCM and A/C clutch relay connection
- Verify BJB fuses 27 (15A) and 34 (10A) are OK.