Pinpoint Test P : B1B71:11, B1B71:15: Notes
WARNING: This page is about a different car, the 2019 Ford F-550 Super Duty, 2019 Ford F-450 Super Duty, 2019 Ford F-350 Super Duty, and 2019 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
B1B71:11, B1B71:15
Refer to Automatic Climate Control System for schematic and connector information.
Normal Operation and Fault Conditions
Evaporator Temperature Sensor, 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 |
|---|---|---|
| B1B71:11 | Evaporator Temperature Sensor: Circuit Short To Ground | The module senses excessive voltage drop on the sensor reference voltage circuit, indicating a short directly to ground. The module defaults to calculated evaporator temperature and the compressor is shut off. |
| B1B71:15 | Evaporator Temperature Sensor: Circuit Short To Battery or Open | The module senses no voltage drop on the sensor reference voltage circuit, indicating a short directly to voltage or an open circuit or sensor. The module defaults to calculated evaporator temperature and the compressor is shut off. |
Possible Sources
- Wiring, terminals or connectors
- Evaporator temperature sensor
- FCIM