CVT Ratio Control System Stuck
2021-2024 Dacia Spring Electric 🇩🇪
Description
The CVT ratio control system is unable to change the transmission ratio. The pulleys may be mechanically seized or the stepper motor has failed.
Symptoms
- Check Engine Light
- Engine revs stay constant regardless of speed
- No ratio change during acceleration
- Sudden RPM changes
- Vehicle feels stuck in one gear
- Harsh engagement from stop
Common Causes
- Stepper motor failure
- Pulley guide rail damage
- Hydraulic valve body stuck
- Belt/chain jammed
- Foreign object in pulley mechanism
Diagnostic Steps
- Monitor CVT ratio PID during driving
- Command ratio change with scan tool
- Check stepper motor operation
- Inspect hydraulic valve body operation
- Check for metallic debris in fluid
Repair Notes
CVT likely requires removal and disassembly. Stepper motor or valve body replacement. Severe cases require transmission replacement.
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
P3024 on Other Vehicles
Dacia Bigster
2025-2025 1.2L I3 Turbo TCe 130
Dacia Bigster
2025-2025 1.6L I4 Hybrid 155
Dacia Duster
2017-2024 1.0L I3 TCe
Dacia Duster
2017-2024 1.3L I4 TCe
Dacia Duster
2017-2024 1.5L I4 dCi
Dacia Duster
2024-2025 1.0L I3 TCe 100 LPG
Dacia Duster
2024-2025 1.2L I3 Hybrid TCe 130
Dacia Duster PL
2018-2025 1.0L I3 Turbo TCe 100
Common Questions
What does code P3024 mean on a 2021-2024 Dacia Spring?
P3024 stands for "CVT Ratio Control System Stuck". The CVT ratio control system is unable to change the transmission ratio. The pulleys may be mechanically seized or the stepper motor has failed.
What are the symptoms of P3024 on a Dacia Spring?
Common symptoms of P3024 include: Check Engine Light, Engine revs stay constant regardless of speed, No ratio change during acceleration, Sudden RPM changes, Vehicle feels stuck in one gear, Harsh engagement from stop.
What causes P3024 on a 2021-2024 Dacia Spring?
Common causes of P3024 include: Stepper motor failure, Pulley guide rail damage, Hydraulic valve body stuck, Belt/chain jammed, Foreign object in pulley mechanism.