FAULTBASE
Error CodesASKCars
© 2025 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
Home/Cars/Tesla/Model S/Plaid/Refresh (2021-present)/how to diagnose the P1A10 code in my Tesla Model S Original (2012-2020)?

how to diagnose the P1A10 code in my Tesla Model S Original (2012-2020)?

Tesla Model S Plaid/Refresh (2021-present)

Error Codes
Severity: highDifficulty: mediumError Code: P1A102-4 hours
3 min read
498 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 P1A10 cooling system issues in Tesla Model S. Step-by-step guide with diagnostic procedures and repair instructions.

Error Code
P1A10
Affected Component
Cooling System
Estimated Time
2-4 hours

Safety Warnings

  • ⚠Disconnect high-voltage battery before starting any repairs.
  • ⚠Allow the cooling system to cool down before inspecting or servicing.

Symptoms

  • •Check engine light illuminated
  • •Reduced power output from the electric motor
  • •Overheating of the electric drive unit
  • •Increased cabin temperature due to compromised cooling
  • •Erratic performance or loss of acceleration

Diagnostic Steps

  1. 1Scan the vehicle using an OBD-II scanner to confirm the P1A10 code and check for any additional codes.
  2. 2Inspect the coolant levels in the electric motor cooling system reservoir; ensure they are within the specified range.
  3. 3Visually examine the cooling hoses and connections for any signs of leaks or damage.
  4. 4Check the operation of the coolant pump; listen for unusual noises and verify it is running when the vehicle is in operation.
  5. 5Inspect the temperature sensors for the electric motor and cooling system; ensure they are functioning correctly.
  6. 6Examine the wiring and connectors related to the cooling system for any corrosion or disconnections.

Solution

Solution

1. Preparation

  • Gather necessary tools and parts.
  • Disconnect the high-voltage battery to ensure safety during repairs.

2. Inspect and Replace Coolant

  • Tools Required: Coolant funnel, container for old coolant, new coolant (Tesla-approved), gloves.
  • Drain the old coolant from the electric motor cooling system into a container.
  • Rinse the system with clean water if necessary, then refill with new Tesla-approved coolant to the specified level.

3. Replace Faulty Components

  • Tools Required: Socket set, torque wrench, screwdrivers.
  • If the coolant pump is found to be defective, disconnect the wiring harness and remove the pump using the appropriate socket.
  • Install the new coolant pump, ensuring all seals are intact, and torque to specifications.
  • Replace any damaged hoses or connectors identified during the inspection.

4. Reconnect and Test

  • Reconnect the high-voltage battery.
  • Start the vehicle and allow it to reach operating conditions while monitoring the coolant system for leaks.
  • Use the OBD-II scanner to clear the P1A10 code and check for recurrence during a 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
  • •Socket set
  • •Torque wrench
  • •Screwdrivers
  • •Coolant funnel

Parts Required

  • •Tesla-approved coolant
  • •New coolant pump (if defective)
  • •Replacement hoses (if damaged)

Additional Information

Error Code
P1A10
Affected Component
Cooling System
Estimated Time
2-4 hours
Difficulty
medium
Severity
high
Tools Required
5 items
Parts Required
3 items

Related Faults

  1. my Tesla Model S Plaid/Refresh (2021-present) won’t charge, what could be the problem?

    Learn how to diagnose and fix charging issues in Tesla Model S Plaid. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

    Electrical6 symptoms

  2. why does my Tesla Model S Plaid/Refresh (2021-present) check engine light keep coming on?

    Learn how to diagnose and fix the check engine light issue in Tesla Model S Plaid (2021-present). Step-by-step guide with diagnostic procedures and repair instructions.

    Electrical6 symptoms

  3. why is my Tesla Model S Plaid/Refresh (2021-present) battery gauge fluctuating

    Learn how to diagnose and fix fluctuating battery gauge issues in Tesla Model S Plaid (2021-present). Step-by-step guide with diagnostic procedures and repair instructions.

    Electrical5 symptoms

  4. why is my Tesla Model S AC blowing hot air

    Complete guide to fixing AC that blows hot air in Tesla Model S. Includes symptoms, diagnostic steps, tools required, and repair procedures.

    HVAC5 symptoms

  5. why does my Tesla Model S Plaid/Refresh (2021-present) feel like it's dragging while driving?

    Learn how to diagnose and fix dragging issues in your Tesla Model S Plaid. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

    Brakes5 symptoms

  6. why does my Tesla Model S Plaid/Refresh (2021-present) battery die when car is off

    Learn how to diagnose and fix battery drain issues in Tesla Model S Plaid. Step-by-step guide with diagnostic procedures and repair instructions.

    Electrical5 symptoms

Share this solution

Comments

Sign in to share your thoughts

Sign In

No comments yet

Be the first to share your thoughts

Back to Generation