C0027moderate severityChassis
LR Wheel Speed Sensor Circuit Intermittent
on 2018 Lincoln MKX 2.7L EcoBoost V6 · AWD
What this code means
The left rear wheel speed sensor signal is intermittent.
Symptoms
- Intermittent ABS warning
- Rear ABS function inconsistent
- Stability control intermittent fault
Common causes
- Wiring damaged along rear axle
- Connector exposed to road spray
- Sensor loose in mounting boss
- Broken wire inside insulation
Diagnostic steps
- Monitor rear sensor signals during road test
- Inspect wiring along rear axle or trailing arm
- Check connector seals and pins
- Verify sensor retention
- Perform wiggle test
Repair notes
Repair damaged wiring. Replace connector seals. Re-secure sensor.
Other Chassis codes on this vehicle
C0021
LF Wheel Speed Sensor Range/Performance
C0021
LF Wheel Speed Sensor Range/Performance
C0022
RF Wheel Speed Sensor Range/Performance
C0022
RF Wheel Speed Sensor Range/Performance
C0023
LR Wheel Speed Sensor Range/Performance
C0023
LR Wheel Speed Sensor Range/Performance
C0024
RR Wheel Speed Sensor Range/Performance
C0024
RR Wheel Speed Sensor Range/Performance
C0025
LF Wheel Speed Sensor Circuit Intermittent
C0025
LF Wheel Speed Sensor Circuit Intermittent