how to fix P0700 code in Tesla Model S Original (2012-2020)

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

Error Code: P0700

3 min read

570 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix P0700 transmission control issues in Tesla Model S (2012-2020). Step-by-step guide with diagnostic procedures and repair instructions.

Error Code

P0700

Affected Component

Transmission

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the vehicle to cool before checking transmission fluid levels.

Symptoms

•Check engine light illuminated
•Transmission slipping or harsh shifting
•Inability to engage in gear
•Reduced acceleration or power
•Unusual noises from the transmission area
•Error messages on the dashboard related to transmission

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to confirm P0700 and any associated codes.
2
Inspect the transmission fluid level and condition; look for signs of contamination or burning.
3
Check for loose or damaged wiring and connectors related to the transmission control module (TCM).
4
Perform a visual inspection of the transmission for leaks or physical damage.
5
Verify the operation of the transmission range sensor (neutral safety switch).
6
Update the vehicle's software to the latest version, as updates can resolve software-related issues.

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

•OBD-II scanner
•Fluid pump
•Multimeter
•Socket set
•Torque wrench
•Screwdrivers

Parts Required

•Transmission fluid (OEM recommended type)
•Transmission range sensor (if faulty)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to confirm P0700 and any associated codes.
2
Inspect the transmission fluid level and condition; look for signs of contamination or burning.
3
Check for loose or damaged wiring and connectors related to the transmission control module (TCM).
4
Perform a visual inspection of the transmission for leaks or physical damage.
5
Verify the operation of the transmission range sensor (neutral safety switch).
6
Update the vehicle's software to the latest version, as updates can resolve software-related issues.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and set the parking brake.
Disconnect the vehicle's 12V battery to avoid electrical shorts.

2. Inspect and Replace Transmission Fluid

Tools Required: Fluid pump, torque wrench, funnel, transmission fluid (OEM recommended type).
Remove the transmission fluid drain plug and allow the fluid to fully drain into a suitable container.
Inspect the old fluid for debris or burning smell.
Reinstall the drain plug and torque to manufacturer's specifications.
Fill the transmission with new fluid through the fill port until it reaches the correct level.

3. Check and Repair Wiring and Connectors

Tools Required: Multimeter, wire crimping tool.
Inspect all wiring harnesses connected to the TCM for fraying or corrosion.
Use a multimeter to check for continuity in the wiring.
Repair or replace any damaged wiring or connectors as necessary.

4. Replace Transmission Range Sensor

Tools Required: Socket set, screwdrivers, torque wrench.
Locate the transmission range sensor on the transmission housing.
Remove the electrical connector and unbolt the sensor.
Install the new transmission range sensor, ensuring it is properly aligned.
Reconnect the electrical connector and secure it.

5. Reconnect Battery and Clear Codes

Reconnect the 12V battery and ensure all connections are secure.
Use the OBD-II scanner to clear the P0700 code and any related codes.
Start the vehicle and check for any reoccurring error codes.