P0231high severityPowertrain
Fuel Pump Secondary Circuit Low
on 2017 Chevrolet Impala 2.5L I4 Ecotec · AWD
What this code means
Low voltage in the fuel pump secondary (output) circuit.
Symptoms
- Engine stalling
- No start
- Loss of power at high RPM
Common causes
- Fuel pump failing
- Corroded connector
- High resistance wiring
- Weak battery during cranking
Diagnostic steps
- Test voltage at pump connector
- Check connector
- Measure current draw
Repair notes
Replace fuel pump or repair wiring.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1