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Home/Cars/Tesla/Model S/Plaid/Refresh (2021-present)/how to fix P0700 transmission code in Tesla Model S Plaid/Refresh (2021-present)

how to fix P0700 transmission code in Tesla Model S Plaid/Refresh (2021-present)

Tesla Model S Plaid/Refresh (2021-present)

Error Codes
Severity: highDifficulty: mediumError Code: P07002-4 hours
3 min read
520 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 Plaid. Step-by-step guide with diagnostic procedures and repair instructions.

Error Code
P0700
Affected Component
Transmission
Estimated Time
2-4 hours

Safety Warnings

  • ⚠Always disconnect the high-voltage battery before performing any repairs on electrical systems.
  • ⚠Ensure the vehicle is securely lifted and supported if working underneath.

Symptoms

  • •Check engine light illuminated
  • •Transmission slipping or erratic shifting
  • •Loss of power during acceleration
  • •Unusual noises from the transmission area
  • •Reduced efficiency or unexpected changes in battery consumption
  • •Limited or no ability to shift into certain gears

Diagnostic Steps

  1. 1Retrieve error codes using an OBD-II scanner compatible with Tesla vehicles.
  2. 2Inspect the transmission fluid level and condition (if applicable).
  3. 3Check for any software updates for the vehicle's firmware.
  4. 4Inspect wiring and connectors related to the transmission control module (TCM) for damage or corrosion.
  5. 5Test the TCM for proper operation using a multimeter.
  6. 6Review the vehicle's history for any previous transmission-related repairs or issues.

Solution

Solution

1. Preparation

  • Gather necessary tools and parts.
  • Disconnect the high-voltage battery for safety.
  • Ensure the vehicle is on a flat surface and secure it with wheel chocks.

2. Update the Firmware

  • Connect the vehicle to Wi-Fi.
  • Check for software updates in the Tesla interface and install any available updates.
  • Restart the vehicle after the update is complete.

3. Inspect and Repair Wiring

  • Visually inspect the wiring harness connected to the TCM.
  • Use a multimeter to test continuity and resistance across wires.
  • Repair or replace any damaged wiring or connectors found during the inspection.

4. Replace the Transmission Control Module (if necessary)

  • Remove any covers obstructing access to the TCM.
  • Disconnect the electrical connectors from the TCM.
  • Remove the TCM by unscrewing it from its mounting points.
  • Install the new TCM and reconnect all connectors securely.
  • Reinstall any covers that were removed.

5. Reconnect Battery and Clear Codes

  • Reconnect the high-voltage battery.
  • Use the OBD-II scanner to clear the P0700 code.
  • Start the vehicle and observe for any reoccurrence of the code.

6. Test the Transmission

  • Perform a test drive to ensure proper operation of the transmission.
  • Monitor for any new codes or symptoms during and after the test drive.

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
  • •Basic hand tools (screwdriver set, socket set)
  • •Torque wrench

Parts Required

  • •Transmission control module (if replacement is necessary)

Additional Information

Error Code
P0700
Affected Component
Transmission
Estimated Time
2-4 hours
Difficulty
medium
Severity
high
Tools Required
4 items
Parts Required
1 item

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