OBD-II code · Network
U0297 Lost Communication with Hybrid Powertrain Control Module
The hybrid CAN has lost the hybrid powertrain control module. Hybrid operation is disabled and the vehicle defaults to combustion-only mode if available.
Is it safe to drive with U0297?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyHybrid module unpowered
- Less likelyGateway module routing CAN messages incorrectly
- Less likelyCAN terminating resistor (120 Ω) drifted out of spec
Symptoms
- Multiple warning lights may illuminate
- Affected modules may go into limp mode or shut down
- Specific functions inoperative depending on module
- Diagnostic tools may show communication faults
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–8 h
- Emissions test
- Usually unaffected
- Parts involved
- Hybrid Powertrain Module, Hv Can Wiring
Related codes
- U0294Lost Communication with Powertrain Control Module B
- U0295Lost Communication with Power Steering Control Module
- U0296Lost Communication With AC/DC Converter Control Module A
- U0298Lost Communication With DC/DC Converter Control Module A
- U0299Lost Communication With DC/DC Converter Control Module B
- U029ALost Communication With Hybrid/EV Battery Pack Sensor Module
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.