ESP family
ESP_a024_WSSReverseCurrent
ABS (anti-lock braking system) disabled
What does the ESP_a024_WSSReverseCurrent alert mean?
Reverse current at wheel speed sensor supply detected and the reverse protection switch is switched off.
What you'll see in your Tesla
- ABS (anti-lock braking system) disabled
- Drive with caution
What triggers it
Backward power supply of ECU via WSS supply line is detected. One of the WSS power supply lines is shorted to Ubat.
When it clears
Check WSS connection line for short circuits.
Potential impact
Will disable VDC/TC and degrade ABS
Affected models
Cybertruck
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
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