how to fix P0700 transmission 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

581 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 code 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 12V battery before working on electrical systems.
•Allow the vehicle to cool down before checking or replacing transmission fluid.

Symptoms

•Check engine light illuminated
•Erratic shifting or difficulty engaging gears
•Reduced acceleration or power loss
•Decreased efficiency or poor fuel economy
•Transmission overheating warning (if applicable)

Diagnostic Steps

1
Connect an OBD-II scanner to retrieve any additional diagnostic trouble codes (DTCs) stored in the system.
2
Inspect the transmission fluid level and condition; look for signs of contamination or burning.
3
Check for any visible leaks in the transmission system.
4
Examine the wiring and connectors related to the transmission control module for damage or corrosion.
5
Review software updates from Tesla to ensure the vehicle’s software is current, as updates can resolve transmission-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
•Socket set
•Transmission fluid
•Funnel
•Cleaning materials

Parts Required

•Tesla-approved transmission fluid
•Replacement wiring (if damaged)

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Diagnostic Steps

1
Connect an OBD-II scanner to retrieve any additional diagnostic trouble codes (DTCs) stored in the system.
2
Inspect the transmission fluid level and condition; look for signs of contamination or burning.
3
Check for any visible leaks in the transmission system.
4
Examine the wiring and connectors related to the transmission control module for damage or corrosion.
5
Review software updates from Tesla to ensure the vehicle’s software is current, as updates can resolve transmission-related issues.

Solution

1. Preparation

Tools Required: OBD-II scanner, socket set, transmission fluid, funnel, cleaning materials
Ensure the vehicle is parked on a level surface and the parking brake is engaged. Disconnect the 12V battery to avoid electrical shorts during repairs.

2. Fluid Check and Replacement

Sub-steps:
1. Remove the transmission fluid fill plug using the socket set.
2. Insert the OBD-II scanner to check the transmission fluid temperature (if applicable) and ensure it is at the correct level.
3. If low, add the appropriate Tesla-approved transmission fluid using a funnel until it reaches the proper level.
4. If the fluid appears contaminated or burnt, drain the existing fluid from the transmission pan by removing the drain plug, and replace it with new fluid.
5. Reinstall the drain plug and torque it to the manufacturer's specification.

3. Electrical Inspection and Repairs

Sub-steps:
1. Inspect the wiring harness connected to the transmission control module for any signs of wear or damage.
2. Clean any corroded connectors with electrical contact cleaner and reassemble them securely.
3. If damaged wiring is found, repair or replace the affected wiring sections.

4. Software Update

Sub-steps:
1. Connect the vehicle to a Wi-Fi network and check for available software updates in the Tesla interface.
2. If an update is available, follow the on-screen prompts to install the latest software version related to the transmission system.

5. Clear Codes and Test Drive

Sub-steps:
1. Use the OBD-II scanner to clear the P0700 code and any related codes that were retrieved.
2. Reconnect the 12V battery and perform a test drive to monitor transmission behavior and ensure the check engine light does not reappear.