Pinpoint Test G : The A/C (Air Conditioning) Is Inoperative: Notes
WARNING: This page is about a different car, the 2020 Ford F-150. 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
Control System Logic REFER to: Climate Control System - Vehicles With: Dual Automatic Temperature Control (DATC) - System Operation and Component Description .
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| P145B | A/C Demand Not Activated During Self Test | This DTC sets when the PCM does not sense an A/C request during a PCM self-test. |
Possible Sources
- 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) or other temperature sensors
- Active grille shutters (if equipped)
- A/C compressor clutch air gap
- A/C compressor clutch field coil
- A/C clutch relay [non-serviceable, part of BJB]
- FCIM
Visual Inspection and Diagnostic Pre-checks
- Inspect BJB fuses 36 (10A) and 32 (10A).