J1939 SPN
SPN 520942

Wheel Speed Sensor Erratic, Right Rear

What it means

This code indicates that the right rear wheel speed sensor is providing erratic or implausible data to the ABS module. This can lead to incorrect braking decisions. The likely root cause is a damaged sensor, wiring, or a dirty tone ring.

Sign in to view symptoms, probable causes, diagnostic steps, severity, and related codes