P0034moderate severityPowertrain
Turbocharger/Supercharger Bypass Valve Control Circuit Low
on 2023 Chevrolet Bolt EUV 65 kWh Single Motor FWD · FWD
What this code means
The computer sees low voltage in the turbo/supercharger bypass valve circuit. This usually indicates a short to ground or failed valve affecting boost.
Symptoms
- Low boost pressure
- Poor acceleration
- Check engine light on
Common causes
- Short to ground in wiring
- Faulty bypass valve solenoid
- Damaged connector
- Failed control module
Diagnostic steps
- Retrieve fault codes
- Check wiring for short to ground
- Test valve resistance
- Verify control circuit voltage
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Other Powertrain codes on this vehicle
P0005
Fuel Shutoff Valve A Control Circuit/Open
P0006
Fuel Shutoff Valve A Control Circuit Low
P0007
Fuel Shutoff Valve A Control Circuit High
P0008
Engine Position System Performance - Bank 1
P0009
Engine Position System Performance - Bank 2
P0026
Intake Valve Control Solenoid Circuit Range/Performance Bank 1
P0027
Exhaust Valve Control Solenoid Circuit Range/Performance Bank 1
P0028
Intake Valve Control Solenoid Circuit Range/Performance Bank 2
P0029
Exhaust Valve Control Solenoid Circuit Range/Performance Bank 2
P0033
Turbocharger/Supercharger Bypass Valve Control Circuit