Fuel Pump Speed Primary Circuit Malfunction
2003-2014 Volvo XC90 3.2L I6
Description
The ECM detected a malfunction in the fuel pump speed control primary circuit. Volvo uses a variable-speed fuel pump system, and the speed feedback signal is outside expected parameters.
Symptoms
- Check Engine Light
- Loss of power
- Hard starting
- Engine stalling
- Reduced fuel pressure
Common Causes
- Faulty fuel pump
- Fuel pump control module failure
- Wiring fault to fuel pump
- Corroded fuel pump connector
- Fuel pump relay failure
Diagnostic Steps
- Test fuel pressure at rail
- Check fuel pump speed signal
- Test fuel pump control module
- Inspect wiring and connector at fuel pump
- Test fuel pump relay
Repair Notes
Replace the fuel pump or fuel pump control module.
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
P1233 on Other Vehicles
Common Questions
What does code P1233 mean on a 2003-2014 Volvo XC90?
P1233 stands for "Fuel Pump Speed Primary Circuit Malfunction". The ECM detected a malfunction in the fuel pump speed control primary circuit. Volvo uses a variable-speed fuel pump system, and the speed feedback signal is outside expected parameters.
What are the symptoms of P1233 on a Volvo XC90?
Common symptoms of P1233 include: Check Engine Light, Loss of power, Hard starting, Engine stalling, Reduced fuel pressure.
What causes P1233 on a 2003-2014 Volvo XC90?
Common causes of P1233 include: Faulty fuel pump, Fuel pump control module failure, Wiring fault to fuel pump, Corroded fuel pump connector, Fuel pump relay failure.