OBD-II code · Network
U064C Lost Communication With Hybrid/EV Battery Pack Current Sensor C
The vehicle bus reports loss of communication with smart HV battery pack current sensor C. SoC and charge/discharge current limits switch to a substitute model.
Is it safe to drive with U064C?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyBus wiring open or shorted
- PossibleModule without power or ground
- PossibleModule failed
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
- 1–4 h
- Emissions test
- Usually unaffected
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Hv Battery Current Sensor C, Vehicle Bus Wiring
Related codes
- U064ALost Communication With Hybrid/EV Battery Pack Current Sensor A
- U064BLost Communication With Hybrid/EV Battery Pack Current Sensor B
- U0649Lost Communication With Coolant Pump D
- U064DLost Communication With Trailer Brake Control Switch
- U064ELost Communication With EGR Cooler Bypass Position Sensor Bank 1
- U064FLost Communication With Intake Manifold Runner Position Sensor Bank 1
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.