Pinpoint Test F : B1A63:11, B1A63:15, B1A64:11, B1A64:15: Notes
WARNING: This page is about a different car, the 2017 Lincoln Navigator and 2017 Ford Expedition. 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
The sunload sensor is grounded. As the intensity of light to the sensor changes, the HVAC control module detects the change through the passenger side and driver side feedback circuits.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B1A63:11 | Right Solar Sensor: Circuit Short to Ground | This DTC sets when the HVAC control module senses lower than expected voltage on the passenger side sensor feedback circuit, indicating a short to ground. |
| B1A63:15 | Right Solar Sensor: Circuit Short to Battery or Open | This DTC sets when the HVAC control module senses greater than expected voltage on the passenger side sensor feedback circuit, indicating a short to voltage or an open circuit or sensor. |
| B1A64:11 | Left Solar Sensor: Circuit Short to Ground | This DTC sets when the HVAC control module senses lower than expected voltage on the driver side sensor feedback circuit, indicating a short to ground. |
| B1A64:15 | Left Solar Sensor: Circuit Short to Battery or Open | This DTC sets when the HVAC control module senses greater than expected voltage on the driver side sensor feedback circuit, indicating a short to voltage or an open circuit or sensor. |
Possible Sources
- Wiring, terminals or connectors
- Sunload sensor
- HVAC control module