Possible Causes
- Wheel/tire assembly damaged
- Aggressive environmental conditions. For example, huge saltwater impact
- Air gap between the rear left wheel speed sensor and the reluctor ring is too great
- Assembly of the rear left wheel speed sensor or reluctor ring to hub
- Incorrect rear left reluctor ring installed
- Wheel bearing seal leaking causing the reluctor ring to deform
- Incorrect rear left wheel speed sensor installed
- Rear left speed sensor internal failure