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Home/Cars/Tesla/Model S/Plaid/Refresh (2021-present)/what does error code P0700 mean for my Tesla Model S Original (2012-2020)

what does error code P0700 mean for my Tesla Model S Original (2012-2020)

Tesla Model S Plaid/Refresh (2021-present)

Error Codes
Severity: highDifficulty: mediumError Code: P07002-4 hours
3 min read
468 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 malfunction 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

  • ⚠Disconnect the battery before working on electrical systems.
  • ⚠Allow the vehicle to cool before inspecting the transmission.

Symptoms

  • •Check engine light illuminated
  • •Unusual transmission behavior (e.g., slipping or harsh shifting)
  • •Inability to engage gears properly
  • •Reduced acceleration or power delivery
  • •Possible regenerative braking issues

Diagnostic Steps

  1. 1Scan for error codes using an OBD-II scanner to identify additional codes.
  2. 2Inspect transmission fluid level and condition; look for contamination.
  3. 3Check the wiring and connectors related to the Transmission Control Module for damage or corrosion.
  4. 4Test the TCM for proper operation using a multimeter.
  5. 5Evaluate the vehicle's battery and electrical systems to ensure proper voltage is supplied.
  6. 6Review any recent vehicle software updates that may affect TCM functionality.

Solution

Solution

1. Preparation

  • Gather necessary tools and parts.
  • Disconnect the vehicle's battery for safety.
  • Ensure the vehicle is on a flat surface and securely supported.

2. Transmission Fluid Inspection

  • Remove the transmission fluid dipstick or fill plug.
  • Check fluid level; add appropriate Tesla-approved transmission fluid if low.
  • Inspect fluid condition; if burnt or contaminated, drain and replace.

3. TCM Inspection

  • Locate the Transmission Control Module (usually near the transmission).
  • Disconnect the TCM electrical connector.
  • Use a multimeter to check for continuity and proper voltage at the connector.
  • Inspect the TCM for physical damage; replace if necessary.

4. Wiring and Connector Repair

  • Examine wiring harnesses leading to the TCM for frays, breaks, or corrosion.
  • Repair any damaged wires using solder and heat-shrink tubing or replace the harness if severely damaged.
  • Clean connectors with electrical contact cleaner and reconnect securely.

5. Reassembly and Testing

  • Reconnect the TCM and battery.
  • Clear any stored error codes using the OBD-II scanner.
  • Start the vehicle and check for the return of error codes or warning lights.

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
  • •Socket set
  • •Torque wrench
  • •Electrical contact cleaner

Parts Required

  • •Tesla-approved transmission fluid
  • •Replacement Transmission Control Module (if necessary)
  • •Wiring harness (if damaged)

Additional Information

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

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