C0351low severityChassis
Headlight Leveling Motor Circuit
on 2018 Mazda Mazda3 2.5L I4 · FWD
What this code means
Malfunction in a headlight leveling actuator motor.
Symptoms
- One headlight aimed incorrectly
- Headlight leveling warning
- Beam pattern asymmetric
Common causes
- Leveling motor failure
- Motor connector corroded
- Wiring harness damage
- Motor gear stripped internally
Diagnostic steps
- Test motor by applying direct voltage
- Check connector for corrosion
- Inspect wiring harness
- Command motor with scan tool
- Listen for motor operation
Repair notes
Replace headlight leveling motor. Re-aim headlights after replacement.
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