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).
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