IDB_a018_WSSGenericFault
ABS (anti-lock braking system) disabled
What does the IDB_a018_WSSGenericFault alert mean?
A wheel speed sensor has experienced an issue or has an incorrect air gap with the tone ring.
What you'll see in your Tesla
- ABS (anti-lock braking system) disabled
- Drive with caution
What triggers it
3 wheel speeds are below 0.25 kph while the remaining wheel speed is greater than 10 kph for 20 seconds while all wheel speed sensor wiring normal.
When it clears
All wheel speed signals correlate normally with eachother. If the issue persists, a wheel speed sensor issue requiring repair or replacement is possible.
Potential impact
Only brake boost may be available. Electronic Brake Distribution (EBD), Anti-lock Brake System (ABS), Brake Traction Control (BTC), Vehicle Stability Control (VDC), Panic Brake Assist (PBA), Hydraulic Fade Compensation (HFC), Controlled Deceleration via Parking Brake (CDP), Brake Disc Wipe (BDW), External Brake Request (EBR), and Secondary Collision Mitigation (SCM) may be unavailable. The vehicle should be driven with extreme caution.
Affected models
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