2024 Tesla Model 3 RH Front Wheel Speed Sensor TSB

Tesla has released Service Bulletin SB-24-33-006 to address a condition in certain 2024 Model 3 vehicles. This bulletin focuses on the RH front Wheel Speed Sensor (WSS) and its associated harness, which may be improperly routed.

The bulletin, classified as a campaign bulletin, provides technicians with recommended procedures for inspecting and, if necessary, repairing the affected components. It's important for owners of affected vehicles to understand this potential issue with their Tesla Model 3 wheel speed sensor.

Why This Matters

The RH front Wheel Speed Sensor (WSS) harness, if misrouted, is susceptible to damage. While the bulletin states this is a non-safety-related condition, a damaged wheel speed sensor can impact vehicle systems that rely on accurate wheel speed data, such as the anti-lock braking system (ABS) and traction control. Addressing this proactively helps maintain the vehicle's intended performance and reliability.

Condition Description

On some 2024 Tesla Model 3 vehicles, the RH front Wheel Speed Sensor (WSS) harness might have been misrouted during assembly. This improper routing can lead to the harness coming into contact with other vehicle components, potentially causing chafing, pinching, or other forms of damage to the WSS harness itself.

Diagnosis and Inspection

To diagnose this condition, technicians are instructed to inspect the vehicle for any symptoms related to the potential harness damage. The primary step involves a thorough visual inspection of the RH front WSS harness for any indications of damage. This includes checking the harness for wear, cuts, or abrasions that would suggest contact with other parts.

Additionally, the inspection extends to the three clips that secure the RH front WSS harness. Technicians must verify that these clips are properly installed and securely fastened to prevent the harness from moving and becoming misrouted. If the clips are found to be incorrectly installed, they must be re-secured.

Repair Procedure Summary

The repair process outlined in Service Bulletin SB-24-33-006 involves several key steps:

1. Wheel Assembly Removal: The RH front wheel assembly must first be removed. This step references Service Manual procedure 34015001.
2. Harness Inspection: A detailed inspection of the RH front WSS harness is performed to check for any signs of damage. This includes examining the harness itself and its securing clips.
3. Clip Fastening: If the harness clips are found to be improperly installed, they are to be fastened correctly to ensure the harness is routed away from moving suspension components. A push-pull check is performed on each clip to confirm secure attachment.
4. WSS Replacement (If Damaged): If damage to the RH front WSS harness is present, the RH front Wheel Speed Sensor is replaced. This replacement procedure refers to Service Manual procedure 3310030002.
5. Wheel Assembly Installation: After any necessary repairs or replacements, the RH front wheel assembly is reinstalled, again referencing Service Manual procedure 34015001.
6. Correction Code Closeout: The repair is then closed out using the appropriate correction code based on the actions performed.

Required Parts and Labor Codes

If the RH front Wheel Speed Sensor requires replacement due to harness damage, the following part may be necessary:

• Part Number: 1344764-00-D
• Description: WHEEL SPEED SENSOR, FR, RH - PERFORMANCE
• Quantity: 1 (If Necessary)

Tesla provides specific correction codes for tracking the service actions related to this bulletin:

• S012433006: SB-24-33-006 Not Applicable (0.00 hours)
• S022433006: Inspect RH Front Wheel Speed Sensor; No Repair Needed (0.06 hours)
• S032433006: Inspect RH Front Wheel Speed Sensor; Resecure Harness Clips (0.06 hours)
• S042433006: Inspect And Replace RH Front Wheel Speed Sensor (0.24 hours)

Important Warnings

Technicians performing this service are advised to exercise caution during the repair process:

• "CAUTION: Ensure the harness is routed correctly to avoid contact with moving suspension components."
• "CAUTION: Perform a push-pull check on each clip to make sure they are fully attached to the upper control arm and knuckle."

These warnings underscore the importance of proper harness routing and secure clip installation to prevent recurrence of the issue with the Tesla Model 3 wheel speed sensor.

What Owners Should Do

Owners of 2024 Tesla Model 3 vehicles should be aware of Service Bulletin SB-24-33-006. If you have concerns about your Tesla Model 3 wheel speed sensor or suspect any related issues, it is recommended to contact your authorized Tesla service center. They can determine if your vehicle is affected and perform the necessary inspection and repairs according to the bulletin's guidelines.

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Source: NHTSA ID: 11009776