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

how to fix P0700 code on my 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
511 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 control issues 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

  • ⚠Disconnect the battery before working on electrical systems to avoid shock.
  • ⚠Allow the vehicle to cool before working on the transmission to prevent burns.

Symptoms

  • •Check engine light illuminated
  • •Abnormal shifting behavior or delay
  • •Loss of power during acceleration
  • •Transmission overheating warning
  • •Reduced efficiency or increased energy consumption

Diagnostic Steps

  1. 1Scan the vehicle's onboard diagnostics using an OBD-II scanner to confirm the P0700 code and check for any additional codes.
  2. 2Inspect the transmission fluid level and condition; ensure it is at the recommended level and not contaminated.
  3. 3Check the wiring and connectors leading to the transmission control module for signs of damage, corrosion, or loose connections.
  4. 4Validate the operation of the transmission control module by running a diagnostic test through the vehicle's software.
  5. 5Review any recent software updates for the vehicle that may affect TCM performance.

Solution

Solution

1. Preparation

  • Gather necessary tools and parts.
  • Ensure the vehicle is parked on a level surface and secured with wheel chocks.
  • Disconnect the 12V battery for safety.

2. Inspect and Replace Transmission Fluid

  • Sub-steps:
    • Remove the transmission fluid drain plug using a socket set.
    • Drain the old transmission fluid into a suitable container.
    • Inspect the drain fluid for metal shavings or discoloration.
    • Replace with manufacturer-recommended transmission fluid (check owner's manual for specifications).
    • Reinstall the drain plug and torque to specified values (refer to service manual).

3. Check and Repair Wiring/Connectors

  • Sub-steps:
    • Visually inspect the wiring harness connected to the TCM.
    • Use a multimeter to test for continuity and proper voltage at the TCM connector.
    • Repair or replace damaged wires or connectors as necessary.

4. Update Transmission Control Module Software

  • Sub-steps:
    • Connect the Tesla diagnostic tool to the vehicle's diagnostic port.
    • Access the TCM software update section.
    • Follow the prompts to download and install any available updates.

5. Reconnect Battery and Test

  • Sub-steps:
    • Reconnect the 12V battery.
    • Start the vehicle and allow it to idle for a few minutes.
    • Conduct a test drive to verify normal operation and shifting behavior.

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
  • •Multimeter
  • •Tesla diagnostic tool

Parts Required

  • •Manufacturer-recommended transmission fluid
  • •Replacement wiring/connectors (if damaged)

Additional Information

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

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