Electric Motor/Generator Position Sensor (Resolver) Fault
2012-2017 Buick Regal 2.4L I4 Hybrid
Description
The resolver sensor that determines rotor position in the motor/generator is reporting erratic or no signal. Accurate position data is critical for motor control.
Symptoms
- Vehicle may be immobile
- Motor control erratic
- Harsh vibration from motor
- No electric drive
- Hybrid system warning
- Unexpected motor behavior
Common Causes
- Resolver sensor failure
- Resolver wiring damage
- Electromagnetic interference
- Resolver air gap incorrect
- Resolver excitation circuit failure
Diagnostic Steps
- Read resolver angle data via scan tool
- Check for resolver signal noise
- Inspect resolver wiring and connectors
- Measure resolver excitation voltage
- Test resolver output signals
Repair Notes
Replace resolver sensor. Perform rotor position calibration after replacement. Some designs require motor removal for resolver access.
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
P3224 on Other Vehicles
Common Questions
What does code P3224 mean on a 2012-2017 Buick Regal?
P3224 stands for "Electric Motor/Generator Position Sensor (Resolver) Fault". The resolver sensor that determines rotor position in the motor/generator is reporting erratic or no signal. Accurate position data is critical for motor control.
What are the symptoms of P3224 on a Buick Regal?
Common symptoms of P3224 include: Vehicle may be immobile, Motor control erratic, Harsh vibration from motor, No electric drive, Hybrid system warning, Unexpected motor behavior.
What causes P3224 on a 2012-2017 Buick Regal?
Common causes of P3224 include: Resolver sensor failure, Resolver wiring damage, Electromagnetic interference, Resolver air gap incorrect, Resolver excitation circuit failure.