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

519 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 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 to prevent shocks or shorts.
•Allow the vehicle to cool before inspecting the transmission to avoid burns.

Symptoms

•Check engine light illuminated
•Erratic shifting or inability to shift gears
•Transmission overheating
•Decreased acceleration performance
•Unusual noises from the transmission area

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any additional transmission-related codes.
2
Check the transmission fluid level and condition; look for signs of contamination or burning smell.
3
Inspect the wiring and connectors related to the transmission control module for damage or corrosion.
4
Test the transmission control module (TCM) for proper function using a multimeter.
5
Perform a visual inspection of the transmission for leaks or physical damage.
6
Review the vehicle’s service history for any previous transmission repairs or 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
•Multimeter
•Wire strippers/crimpers
•Funnel
•Clean lint-free cloth

Parts Required

•Transmission fluid (as specified in the owner's manual)
•Replacement wiring/connectors (if damaged)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any additional transmission-related codes.
2
Check the transmission fluid level and condition; look for signs of contamination or burning smell.
3
Inspect the wiring and connectors related to the transmission control module for damage or corrosion.
4
Test the transmission control module (TCM) for proper function using a multimeter.
5
Perform a visual inspection of the transmission for leaks or physical damage.
6
Review the vehicle’s service history for any previous transmission repairs or issues.

Solution

1. Preparation

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

2. Check Transmission Fluid

Sub-steps:
1. Locate the transmission fluid dipstick.
2. Remove the dipstick and wipe it clean with a lint-free cloth.
3. Reinsert the dipstick, remove it again, and check the fluid level.
4. If low, add the appropriate type of transmission fluid as specified in the owner’s manual.
Tools Required: Clean lint-free cloth, funnel

3. Inspect Wiring and Connectors

Sub-steps:
1. Visually inspect the wiring harness and connectors for signs of wear, damage, or corrosion.
2. If damaged, repair or replace the affected wiring or connectors.
Tools Required: Wire strippers/crimpers, electrical tape

4. Test Transmission Control Module

Sub-steps:
1. Connect a multimeter to the TCM’s power and ground terminals.
2. Measure the voltage; it should match the specifications in the service manual.
3. If voltage is incorrect, check the power supply circuit for issues.
Tools Required: Multimeter

5. Clear Codes and Test Drive

Sub-steps:
1. Use the OBD-II scanner to clear the P0700 code and any related codes.
2. Test drive the vehicle to monitor for any reoccurrence of the check engine light or transmission issues.
Tools Required: OBD-II scanner