Pinpoint Test P : U0140:00: Notes
Normal Operation and Fault Conditions
Control system logic, 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 |
|---|---|---|
| U0140:00 | Lost Communication With Body Control Module: No Sub-Type Information | This Continuous Memory Diagnostic Trouble Code (CMDTC) sets in the HVAC control module if data messages received from the BCM over the CAN are missing for 5 seconds or more. |
Possible Sources
- Fuse(s)
- Wiring, terminals or connectors
- 12V battery voltage
- BCM
- HVAC control module