P1794moderate severityPowertrain
System Voltage Sensing Circuit
on 2023 Chevrolet Bolt EUV 65 kWh Single Motor FWD · FWD
What this code means
The PCM detected a fault in the system voltage sensing circuit. Voltage readings used for control may be inaccurate.
Symptoms
- Erratic operation
- Warning lights on
- Charging concerns
Common causes
- Poor power or ground connection
- Wiring fault in sensing circuit
- Charging system fault
- Faulty PCM
Diagnostic steps
- Measure battery and system voltage
- Inspect sensing circuit wiring
- Check charging system output
- Repair wiring or replace PCM
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