P0627
Fuel Pump A Control Circuit/Open
2007-2007 Cadillac CTS 3.2L V6
High SeverityPowertrainGeneric (SAE)
The 2007 Cadillac CTS is equipped with a 3.2L V6 engine. Below you'll find detailed p0627 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
Open circuit in fuel pump control circuit.
Symptoms
- No start
- No fuel pump prime sound
- Stalling
Common Causes
- Fuel pump relay failure
- Wiring open
- PCM driver failure
- Inertia switch tripped
Diagnostic Steps
- Check fuel pump relay
- Test wiring
- Check inertia switch
- Test PCM output
Repair Notes
Replace relay 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
P0627 on Other Vehicles
Common Questions
What does code P0627 mean on a 2007-2007 Cadillac CTS?
P0627 stands for "Fuel Pump A Control Circuit/Open". Open circuit in fuel pump control circuit.
What are the symptoms of P0627 on a Cadillac CTS?
Common symptoms of P0627 include: No start, No fuel pump prime sound, Stalling.
What causes P0627 on a 2007-2007 Cadillac CTS?
Common causes of P0627 include: Fuel pump relay failure, Wiring open, PCM driver failure, Inertia switch tripped.
Last updated: March 2026