Is your Telsa ABS light on due to a fault ABS wheel speed sensor? Learn how to fix the problem by replacing your Tesla’s ABS wheel speed sensor. This guide provides step-by-step instructions on how to replace a Tesla’s ABS wheel speed sensor. Replacing the ABS wheel speed sensor on a Tesla is easy and takes less than one hour.
A Tesla’s bad ABS wheel speed sensor will lead to several systems getting disabled. On the touchscreen, you may get the following warning messages:
- ABS warning light / ABS disabled message / ABS inactive
- Traction light / traction control disabled message
- Stability control light / Stability disabled message
- AEB Disabled error message
- Regenerative Braking disabled,
- Emergency Braking disabled
- Regenerative Brake System Indicators (RBS) disabled
- Message to contact service advisor.
If you get any of these warnings, try rebooting the system first. If any warning lights come on, perform a diagnostic of the ABS. Most of these warning messages are sometimes due to a faulty ABS wheel speed sensor.
What you will need
- ABS Wheel Speed Sensor
- Tesla Jack Pad Adapters
- Floor Jack
- Jack Stands
- 10mm wrench
- Flathead screwdriver
How to change the ABS wheel speed sensor on a Tesla.
- Park the Tesla on a level ground
- Loosen the lug nuts at the wheel, where you will change the ABS sensor.
- Jack up the vehicle. We recommend using jack pad adapters to avoid damage to the battery.
- Secure the vehicle with jack stands.
- Remove the wheel from the vehicle.
- Locate the ABS wheel speed sensor. The ABS wheel speed sensor is mounted on the knuckle behind the rotor.
- Remove the 10mm bolt and pull out the sensor from the wheel hub.
- Remove the ABS wheel speed sensor from the connector by the car frame.
- Unhook the ABS wheel speed sensor wire from the car.
- Install the new ABS wheel speed sensor in reverse order.
It is important to diagnose the vehicle before replacing any part. The ABS wheel speed sensor is not the only component that can fail or cause the warning and symptoms we describe here.
Other possible issues include:
- eFuse for iBooster
- ABS Modulator Assembly / ABS Pump
The pictures in this guide are based on a 2018 Tesla Model 3, but the procedure is the same for Model S and Model Y. Ensure the ABS wheel speed sensor is for your particular Tesla model. While it is possible to drive a Tesla with a failed ABS wheel speed sensor, keep in mind that several safety systems will be disabled. Do not drive the vehicle if the brakes do not function properly.
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