P0231
Fuel Pump Secondary Circuit Low
2000-2005 Chevrolet Impala 3.8L V6
High SeverityPowertrainGeneric (SAE)
Description
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.
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
P0231 on Other Vehicles
Chevrolet Astro
1995-2005 4.3L V6 Vortec
Chevrolet Avalanche
2002-2006 5.3L V8 Vortec
Chevrolet Avalanche
2002-2006 8.1L V8 Vortec
Chevrolet Avalanche
2007-2013 5.3L V8 Vortec
Chevrolet Avalanche
2007-2013 6.0L V8 Vortec
Chevrolet Aveo
2012-2018 1.6L I4
Chevrolet Beat
2018-2021 1.2L I4
Chevrolet Beretta
1990-1996 2.2L I4
Common Questions
What does code P0231 mean on a 2000-2005 Chevrolet Impala?
P0231 stands for "Fuel Pump Secondary Circuit Low". Low voltage in the fuel pump secondary (output) circuit.
What are the symptoms of P0231 on a Chevrolet Impala?
Common symptoms of P0231 include: Engine stalling, No start, Loss of power at high RPM.
What causes P0231 on a 2000-2005 Chevrolet Impala?
Common causes of P0231 include: Fuel pump failing, Corroded connector, High resistance wiring, Weak battery during cranking.