Pinpoint Test H : The A/C (Air Conditioning) Is Always On - A/C (Air Conditioning) Mode Always Commanded On: Notes
WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.
Refer to Wiring Diagram Automatic Climate Control System for schematic and connector information.
Normal Operation and Fault Conditions
Control System Logic REFER to: Climate Control System - System Operation and Component Description .
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| P1464 | A/C Demand Out Of Self Test Range | This DTC sets when the PCM senses an A/C request during a PCM self-test. |
Possible Sources
- A/C clutch relay
- Wiring, terminals or connectors
- A/C pressure transducer
- FCIM
- PCM