Fuel Volume Regulator Control Circuit/Open
2007-2007 Cadillac CTS 3.2L V6
The 2007 Cadillac CTS is equipped with a 3.2L V6 engine. Below you'll find detailed p0001 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
The PCM detected an open circuit in the fuel volume regulator control circuit. This regulator controls fuel pressure in the high-pressure fuel system.
Symptoms
- Check Engine Light
- Hard starting
- Reduced power
- Poor fuel economy
Common Causes
- Faulty fuel volume regulator
- Damaged wiring or connectors
- PCM failure
- Corroded terminals
Diagnostic Steps
- Read freeze frame data
- Inspect wiring to fuel volume regulator
- Test regulator resistance
- Check fuel pressure
- Test PCM output
Repair Notes
Replace faulty fuel volume regulator or repair wiring.
Related Codes
Other Powertrain Codes
- 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
- P0016Crankshaft Position/Camshaft Position Correlation Bank 1 Sensor A
P0001 on Other Vehicles
Common Questions
What does code P0001 mean on a 2007-2007 Cadillac CTS?
P0001 stands for "Fuel Volume Regulator Control Circuit/Open". The PCM detected an open circuit in the fuel volume regulator control circuit. This regulator controls fuel pressure in the high-pressure fuel system.
What are the symptoms of P0001 on a Cadillac CTS?
Common symptoms of P0001 include: Check Engine Light, Hard starting, Reduced power, Poor fuel economy.
What causes P0001 on a 2007-2007 Cadillac CTS?
Common causes of P0001 include: Faulty fuel volume regulator, Damaged wiring or connectors, PCM failure, Corroded terminals.
Last updated: March 2026