Pinpoint Test W: U0166:87: Notes
U0166:87
Normal Operation and Fault Conditions
REFER to: Communications Network - System Operation and Component Description . RHVAC
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0166:87 | Lost Communication With Auxiliary Heater Control Module: Missing Message | Sets in the BCM if messages from the RHVAC through the GWM are missing. |
Possible Sources
- Communication network concern
- Battery voltage concern
- GWM concern
- RHVAC
- BCM