Pinpoint Test K : The A/C (Air Conditioning) Is Inoperative: Notes
WARNING: This page is about a different car, the 2018 Lincoln MKC. However, it is still accessible from the selected car via links, so may be relevant.
Refer to Automatic Climate Control System for schematic and connector information.
Normal Operation and Fault Conditions
Refer to A/C Request. Refer to: Climate Control System - System Operation and Component Description .
Possible Sources
- Wiring, terminals or connectors
- Communication network
- Ambient Air Temperature (AAT) sensor
- A/C pressure transducer
- Evaporator temperature sensor
- Electric cooling fan
- Intake Air Temperature (IAT) / Mass Air Flow (MAF) sensor
- Active grille shutters (if equipped)
- FCIM
Visual Inspection and Diagnostic Pre-checks
- Inspect for loose or corroded PCM and A/C clutch relay connection
- Verify BJB fuses 25 (10A) and 34 (15A) are OK.