Pinpoint Test P : B105A:12, B105A:14, B1A61:11, B1A61:15, B1A69:12, B1A69:14: Notes
WARNING: This page is about a different car, the 2016 Ford F-150. 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
In-Vehicle Temperature and Humidity Sensor, REFER to: Climate Control System - Vehicles With: Electronic Manual Temperature Control (EMTC) - System Operation and Component Description .
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B105A:12 | Cabin Temperature Sensor Fan: Circuit Short To Battery | This DTC sets when the module senses higher than expected voltage on the in-vehicle temperature and humidity sensor fan motor circuit. The in-vehicle temperature and humidity sensor fan motor is inactive. |
| B105A:14 | Cabin Temperature Sensor Fan: Circuit Short To Ground or Open | This DTC sets when the module senses no voltage on the in-vehicle temperature and humidity sensor fan motor circuit, indicating an open or a short directly to ground. The in-vehicle temperature and humidity sensor fan motor is active. |
| B1A61:11 | Cabin Temperature Sensor: Circuit Short to Ground | This DTC sets when the module senses lower than expected voltage on the in-vehicle temperature and humidity sensor feedback circuit, indicating a short to ground. |
| B1A61:15 | Cabin Temperature Sensor: Circuit Short to Battery or Open | This DTC sets when the module senses greater than expected voltage on the in-vehicle temperature and humidity sensor feedback circuit, indicating a short to voltage or an open circuit or sensor. |
| B1A69:12 | Humidity Sensor: Circuit Short To Battery | This DTC sets when the module senses greater than expected voltage on the in-vehicle temperature and humidity sensor humidity input circuit, indicating a short to voltage. |
| B1A69:14 | Humidity Sensor: Circuit Short To Ground or Open | This DTC sets when the module senses no voltage on the in-vehicle temperature and humidity sensor humidity input circuit, indicating a short to ground or an open circuit or sensor. |
Possible Sources
- Fuse
- Wiring, terminals or connectors
- In-vehicle temperature and humidity sensor
- FCIM
Visual Inspection and Diagnostic Pre-checks
- Make sure the in-vehicle temperature and humidity sensor harness is not chaffed.