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P3293

HV Charging System Ground Fault Interrupt (GFI) Trip

2012-2017 Buick Regal 2.4L I4 Hybrid

High SeverityPowertrainGeneric (SAE)

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

  1. Inspect charge port for moisture or debris
  2. Test HV system isolation resistance
  3. Try charging at different EVSE
  4. Check home electrical grounding
  5. 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

P3400Onboard Charger (OBC) Internal FaultP3404Onboard Charger Ground Fault Detected

Other Powertrain Codes

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.

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