how to fix P0700 code on 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

532 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 issue 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 inspecting the transmission.

Symptoms

•Check engine light illuminated
•Transmission may enter limp mode
•Erratic shifting behavior or delayed engagement
•Reduced acceleration performance
•Unusual noises from the transmission during operation

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to retrieve related transmission codes.
2
Inspect the transmission fluid level and condition, looking for contamination or burning smell.
3
Check the battery voltage to ensure it is within the normal operating range.
4
Inspect the wiring harness and connectors to the transmission for damage or corrosion.
5
Perform a visual inspection of the transmission control module (TCM) for signs of damage or overheating.

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
•Torque wrench
•Transmission fluid pump
•Screwdrivers

Parts Required

•Transmission fluid (Tesla-recommended type)
•Any damaged wiring or connectors (as needed)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to retrieve related transmission codes.
2
Inspect the transmission fluid level and condition, looking for contamination or burning smell.
3
Check the battery voltage to ensure it is within the normal operating range.
4
Inspect the wiring harness and connectors to the transmission for damage or corrosion.
5
Perform a visual inspection of the transmission control module (TCM) for signs of damage or overheating.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is off.
Disconnect the battery to ensure safety while working on electrical components.

2. Check and Replace Transmission Fluid

Sub-steps:
- Locate the transmission dipstick or fluid fill port.
- Remove the dipstick and check fluid level and quality. If low or burnt, proceed to replace the fluid.
- Use a proper transmission fluid as specified by Tesla (typically Tesla's own brand).
- Drain the old fluid completely by removing the drain plug.
- Refill the transmission with the new fluid through the fill port, ensuring the correct amount is added (refer to the owner’s manual for specifications).

3. Inspect and Repair Wiring

Sub-steps:
- Locate the wiring harness connected to the TCM.
- Inspect for any signs of wear, fraying, or corrosion.
- If damaged, repair or replace the affected wiring and connectors.
- Ensure all connections are secure and free of dirt or moisture.

4. TCM Inspection and Reset

Sub-steps:
- Locate the TCM, usually found near the transmission.
- Inspect for physical damage or signs of overheating.
- If no damage is found, use an OBD-II scanner to clear the P0700 code and any related codes.
- Reconnect all components and the battery.