RCU_a051_ESPReRWSSLInvalid

Rear right wheel speed sensor signal is invalid.

Live incidence rate

<0.01% (Extremely rare)

Vehicle messages

None displayed

Impact

There may be an issue with the transmitting Electronic Control Unit (ECU), the Integrated Dynamic Brake (IDB).

Description

Rear right wheel speed sensor signal is invalid.

Cause

The RCU receives the ESP_wheelSpeedReR as Signal Not Available (SNA) for 100 milliseconds.

Clear condition

The Redundant Control Unit (RCU) receives a valid ESP_wheelSpeedReR signal for 100 milliseconds while the vehicle is parked.

Models

Model Y 2025+

Visibility

service-fix

Want to track your firmware alerts, trips and more?

Sign up for Tessie. Try it free for 14 days. Happiness guaranteed.