HV Charging System Ground Fault Interrupt (GFI) Trip
2012-2017 Buick Regal 2.4L I4 Hybrid
Description
The HV charging system ground fault interrupter has tripped during a charging session, indicating a potential current leak to ground.
Symptoms
- Charging session terminated immediately
- GFI fault displayed
- Unable to restart charging
- EVSE may also show fault
- Intermittent charge interruptions
Common Causes
- Moisture in charge port or HV connector
- HV cable insulation degradation
- Onboard charger internal ground fault
- EVSE ground fault sensitivity
- Home wiring ground/neutral issue
Diagnostic Steps
- Inspect charge port for moisture or debris
- Test HV system isolation resistance
- Try charging at different EVSE
- Check home electrical grounding
- Read OBC ground fault current data
Repair Notes
Dry and clean charge port. Test HV isolation. If vehicle-side fault confirmed, inspect HV cable insulation and onboard charger. Have electrician verify home wiring if fault only occurs at home.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P3293 on Other Vehicles
Common Questions
What does code P3293 mean on a 2012-2017 Buick Regal?
P3293 stands for "HV Charging System Ground Fault Interrupt (GFI) Trip". The HV charging system ground fault interrupter has tripped during a charging session, indicating a potential current leak to ground.
What are the symptoms of P3293 on a Buick Regal?
Common symptoms of P3293 include: Charging session terminated immediately, GFI fault displayed, Unable to restart charging, EVSE may also show fault, Intermittent charge interruptions.
What causes P3293 on a 2012-2017 Buick Regal?
Common causes of P3293 include: Moisture in charge port or HV connector, HV cable insulation degradation, Onboard charger internal ground fault, EVSE ground fault sensitivity, Home wiring ground/neutral issue.