C121Ahigh severityChassis
ESP Malfunction
on 2023 Chrysler 300 5.7L V8 HEMI · RWD
What this code means
The electronic stability program has detected a general fault and disabled itself. Vehicle stability assistance is not available until repaired.
Symptoms
- ESP warning light on
- Traction control disabled
- Reduced stability assist
Common causes
- Wheel speed sensor fault
- Steering angle sensor fault
- Yaw/lateral sensor fault
- Faulty ABS/ESP module
Diagnostic steps
- Scan all stability codes
- Check related sensor inputs
- Inspect wiring and connectors
- Test ABS/ESP module
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Other Chassis codes on this vehicle
C0021
LF Wheel Speed Sensor Range/Performance
C0022
RF Wheel Speed Sensor Range/Performance
C0023
LR Wheel Speed Sensor Range/Performance
C0024
RR Wheel Speed Sensor Range/Performance
C0025
LF Wheel Speed Sensor Circuit Intermittent
C0026
RF Wheel Speed Sensor Circuit Intermittent
C0027
LR Wheel Speed Sensor Circuit Intermittent
C0028
RR Wheel Speed Sensor Circuit Intermittent
C0035
Left Front Wheel Speed Sensor Circuit
C0036
Left Front Wheel Speed Signal Erratic