U1803
Lost Communication with Hybrid Powertrain Control Module 2
DTC U1803, sometimes indicated as U180300 is an OBD diagnostic trouble code indicating a manufacturer-specific fault with the vehicle user network.
- U1803 00: Lost Communication with Hybrid Powertrain Control Module 2
DTC Trouble Code Search
Bulletins
Bulletins are notices put out by manufacturers in conjunction with the NHTSA to notify the public of manufacturing issues or changes.
- A23-043 - ELECTRICAL SYSTEM
HONDA: Service bulletin - some customers experience the following errors: dtc U1803 and code tt06. A software issue is causing an internal ethernet error in the can gateway unit (cgw).