how to troubleshoot P0700 transmission issue 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

566 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 troubleshoot 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 components
•Ensure the vehicle is powered off and the keys are removed during repairs

Symptoms

•Check engine light illuminated
•Erratic shifting behavior
•Slow acceleration or loss of power during driving
•Transmission overheating (overheating warning message)
•Reduced regenerative braking capability
•Unusual noises from the transmission area

Diagnostic Steps

1
Scan for error codes using OBD-II scanner
2
Inspect transmission fluid level and condition
3
Check for TCM updates
4
Inspect connectors and wiring related to the transmission for damage
5
Take the vehicle for a test drive to replicate the symptoms
6
Check the voltage levels of the high-voltage battery

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 extractor
•Fluid funnel
•Basic hand tools (sockets, wrenches)

Parts Required

•Transmission fluid (manufacturer-recommended type)
•Electrical connectors (if damaged)

Related Faults

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Solution

1. Preparation

Ensure the vehicle is parked on a flat surface and the parking brake is engaged.
Gather necessary tools and parts for the repair.

2. Address Fluid Issues

Check Fluid Level:
- Locate the transmission fluid reservoir.
- Ensure the vehicle is at the correct operating temperature.
- Use the dipstick to check fluid level and top off if low with the specified transmission fluid.
Fluid Replacement (if necessary):
- Drain old fluid using a fluid extractor.
- Replace with manufacturer-recommended transmission fluid.
- Recheck fluid level and ensure it’s within specified range.

3. Update TCM Software

Connect a diagnostic tool that can access Tesla’s software.
Follow the prompts to check for and install any TCM updates available.

4. Repair Wiring and Connectors

Inspect and Repair:
- Remove the TCM connector and inspect for corrosion or damage.
- Repair or replace any damaged wiring or connectors.
- Reconnect the TCM ensuring a secure fit.

5. Test Drive and Monitor

After making the necessary repairs, take the vehicle for a test drive.
Monitor for any transmission-related warning messages or erratic behavior.