C0520
AWD Coupling Control Circuit
2021-2024 Dodge Durango SRT Hellcat 6.2L V8 Supercharged
High SeverityChassisGeneric (SAE)
Description
Malfunction in the electronically controlled AWD coupling that distributes torque between axles.
Symptoms
- AWD warning light
- Reduced traction in AWD mode
- Vehicle operates in 2WD only
- Burning smell from coupling area
Common Causes
- Electromagnetic coupling failure
- Coupling overheated
- Wiring damage to coupling
- Control module driver failure
Diagnostic Steps
- Test coupling solenoid resistance
- Command coupling engagement with scan tool
- Check for overheating signs
- Inspect wiring and connector
- Monitor coupling temperature if sensor equipped
Repair Notes
Replace AWD coupling unit. Check fluid level in coupling if applicable.
Related Codes
Other Chassis Codes
- C0021LF Wheel Speed Sensor Range/Performance
- C0022RF Wheel Speed Sensor Range/Performance
- C0023LR Wheel Speed Sensor Range/Performance
- C0024RR Wheel Speed Sensor Range/Performance
- C0025LF Wheel Speed Sensor Circuit Intermittent
- C0026RF Wheel Speed Sensor Circuit Intermittent
- C0027LR Wheel Speed Sensor Circuit Intermittent
- C0028RR Wheel Speed Sensor Circuit Intermittent
- C0035Left Front Wheel Speed Sensor Circuit
- C0036Left Front Wheel Speed Signal Erratic
C0520 on Other Vehicles
Common Questions
What does code C0520 mean on a 2021-2024 Dodge Durango SRT Hellcat?
C0520 stands for "AWD Coupling Control Circuit". Malfunction in the electronically controlled AWD coupling that distributes torque between axles.
What are the symptoms of C0520 on a Dodge Durango SRT Hellcat?
Common symptoms of C0520 include: AWD warning light, Reduced traction in AWD mode, Vehicle operates in 2WD only, Burning smell from coupling area.
What causes C0520 on a 2021-2024 Dodge Durango SRT Hellcat?
Common causes of C0520 include: Electromagnetic coupling failure, Coupling overheated, Wiring damage to coupling, Control module driver failure.