Pinpoint Test P : B105A:00, B1A61:00, B1A69:00, C1B14:00: Notes
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)
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.