how to check the fuse for my Tesla Model S Original (2012-2020) power locks

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

30 minutes to 1 hour

Time

medium

Difficulty

medium

Severity

3 min read

486 words

Problem Statement

Learn how to check the fuse for power locks in Tesla Model S (2012-2020). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

30 minutes to 1 hour

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is off before working on the electrical system.
•Handle fuses carefully to avoid electrical shock or damage.

Symptoms

•Power locks do not engage or respond
•Key fob does not unlock or lock the doors
•Interior lock/unlock buttons are unresponsive
•No sound from locking mechanisms when attempting to lock/unlock

Diagnostic Steps

1
Locate the fuse box inside the vehicle, typically found under the dashboard on the driver's side.
2
Refer to the owner's manual for the specific fuse diagram related to the power locks.
3
Visually inspect the fuse associated with the power locks for any signs of damage or breakage.
4
Use a multimeter to test the continuity of the power lock fuse if visual inspection is inconclusive.
5
Check other related fuses to rule out any additional issues that might be affecting the power locks.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•Multimeter
•Fuse puller
•Needle-nose pliers

Parts Required

•Replacement fuse (appropriate amperage for power locks)

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Diagnostic Steps

1
Locate the fuse box inside the vehicle, typically found under the dashboard on the driver's side.
2
Refer to the owner's manual for the specific fuse diagram related to the power locks.
3
Visually inspect the fuse associated with the power locks for any signs of damage or breakage.
4
Use a multimeter to test the continuity of the power lock fuse if visual inspection is inconclusive.
5
Check other related fuses to rule out any additional issues that might be affecting the power locks.

Solution

1. Preparation

Gather necessary tools: multimeter, fuse puller, or needle-nose pliers.
Ensure the vehicle is in the off position and parked.

2. Access the Fuse Box

Open the driver-side door to access the dashboard area.
Remove the plastic cover from the fuse box by gently prying it off with your fingers or a trim removal tool.

3. Inspect the Fuse

Locate the fuse corresponding to the power locks using the fuse diagram found in the owner's manual.
Carefully pull the fuse out using a fuse puller or needle-nose pliers.
Inspect the fuse visually for a broken filament or discoloration.

4. Test the Fuse

Set the multimeter to continuity mode.
Touch the probes to each end of the fuse to check for continuity; a reading indicates the fuse is good, while no reading indicates it is blown.
If the fuse is blown, replace it with a new fuse of the same amperage rating.

5. Reassemble and Test

Reinsert the new or tested good fuse back into the fuse box.
Replace the plastic cover of the fuse box.
Test the power locks with the key fob and interior buttons to ensure functionality.