Pinpoint Test D : B1A61:00, B1A69:00, B105A: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) - System Operation and Component Description .
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B1A61:00 | Cabin Temperature Sensor: No Sub Type Information | This DTC sets when the HVAC control module senses unexpected voltage on the circuit for the cabin temperature sensor. |
| B1A69:00 | Humidity Sensor: No Sub Type Information | This DTC sets when the HVAC control module senses unexpected voltage on the circuit for the humidity sensor. |
| B105A:00 | Cabin Temperature Sensor Fan: No Sub Type Information | This DTC sets when the HVAC control module senses unexpected voltage on the circuit for the cabin temperature sensor fan. |
Possible Sources
- Wiring, terminals or connectors
- In-vehicle temperature and humidity sensor
- HVAC control module
Visual Inspection and Diagnostic Pre-checks
- Make sure the in-vehicle temperature and humidity sensor harness is not chaffed.
- Make sure BCM fuse 85 (7.5A) is OK.