Pinpoint Test P : B105A:00, B1A61:00, B1A69:00, C1B14:00: Notes
WARNING: This page is about a different car, the 2018 Ford Focus. 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
In-vehicle temperature and humidity 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 |
|---|---|---|
| B105A:00 | Cabin Temperature Sensor Fan: No Sub Type Information | This Continuous Memory Diagnostic Trouble Code (CMDTC) sets when the HVAC control module senses no voltage or unexpected voltage on the circuit for the cabin temperature sensor fan. |
| B1A61:00 | Cabin Temperature Sensor: No Sub Type Information | This Continuous Memory Diagnostic Trouble Code (CMDTC) sets when the HVAC control module senses erratic voltages from the cabin temperature sensor. |
| B1A69:00 | Humidity Sensor: No Sub Type Information | This Continuous Memory Diagnostic Trouble Code (CMDTC) sets when the HVAC control module senses erratic voltages from the humidity sensor. |
| C1B14:00 | Sensor Supply Voltage A: No Sub Type Information | This Continuous Memory Diagnostic Trouble Code (CMDTC) sets when the HVAC control module senses no voltage or unexpected voltage on the circuit for the cabin temperature sensor fan. |
Possible Sources
- Fuse
- Wiring, terminals or connectors
- In-vehicle temperature and humidity sensor
- HVAC control module
Visual Inspection and Diagnostic Pre-checks
- Verify BCM fuse 71 (10A) is OK.