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

560 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

•Always disconnect the battery before working on electrical systems to prevent shocks.
•Ensure the vehicle is securely lifted and supported if working underneath.

Symptoms

•Check Engine Light illuminated
•Erratic shifting or inability to shift gears
•Loss of power during acceleration
•Unresponsive throttle
•Reduced regenerative braking capability
•Transmission overheating warning

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to retrieve additional codes related to the transmission.
2
Inspect the transmission fluid level and condition.
3
Check for any visible damage or loose connections in the wiring harness to the TCM.
4
Verify the functionality of the transmission control module by performing a self-test using manufacturer-specific diagnostic tools.
5
Inspect for mechanical issues within the transmission system such as worn components or clogs.
6
Review software updates or recalls related to the transmission system that may affect functionality.

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
•Transmission fluid dipstick or funnel
•Multimeter
•Basic hand tools
•Socket set
•Torque wrench

Parts Required

•Transmission fluid (as specified by Tesla)
•Transmission Control Module (if replacement is necessary)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to retrieve additional codes related to the transmission.
2
Inspect the transmission fluid level and condition.
3
Check for any visible damage or loose connections in the wiring harness to the TCM.
4
Verify the functionality of the transmission control module by performing a self-test using manufacturer-specific diagnostic tools.
5
Inspect for mechanical issues within the transmission system such as worn components or clogs.
6
Review software updates or recalls related to the transmission system that may affect functionality.

Solution

1. Preparation

Gather tools and parts.
Ensure the vehicle is parked on a level surface and the parking brake is engaged.
Disconnect the negative battery terminal to prevent electrical shorts.

2. Check Transmission Fluid

Tools Required: Transmission fluid dipstick or funnel (if applicable).
Inspect the transmission fluid level through the dipstick or fill port.
If fluid is low, add the recommended transmission fluid type as per Tesla specifications.
Check the fluid condition—if it is dark or smells burnt, consider changing the fluid.

3. Inspect Wiring and Connectors

Tools Required: Multimeter and basic hand tools.
Visually inspect the wiring harness and connectors leading to the TCM for any signs of damage or corrosion.
Use a multimeter to check for continuity in the wiring and ensure proper voltage is reaching the TCM.
Repair or replace any damaged wires or connectors.

4. Replace Transmission Control Module (if necessary)

Tools Required: Socket set and torque wrench.
Locate the TCM (usually found near the transmission).
Disconnect the electrical connectors from the TCM.
Remove the mounting bolts using the socket set and carefully take out the TCM.
Install the new TCM by reversing the removal steps and torque bolts to manufacturer specifications.

5. Reconnect Battery and Clear Codes

Reconnect the negative battery terminal.
Use an OBD-II scanner to clear the P0700 code and any related codes.
Start the vehicle and monitor for any error codes reappearing.