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why does my Toyota Corolla E170 (2013-2019) traction control light keep coming on? - Toyota Corolla
Home/Cars/Toyota/Corolla/E170 (2013-2019)/why does my Toyota Corolla E170 (2013-2019) traction control light keep coming on?

why does my Toyota Corolla E170 (2013-2019) traction control light keep coming on?

Toyota Corolla E170 (2013-2019)

Error Codes
1-3 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
476 words

Problem Statement

Learn how to diagnose and fix traction control light issues in Toyota Corolla E170 (2013-2019). Step-by-step guide with symptoms and solutions.

Affected Component
Brakes
Estimated Time
1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the battery before working on electrical systems.
  • •Ensure the vehicle is securely lifted if working under it.

Symptoms

  • •Traction control light illuminated on the dashboard
  • •Loss of traction during acceleration
  • •Unusual wheel spin or skidding in slippery conditions
  • •Engine power reduction during traction control activation
  • •Check engine light may also be illuminated

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

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
  • •Multimeter
  • •Socket set
  • •Torque wrench
  • •Screwdrivers

Parts Required

  • •Wheel speed sensor (if faulty)
  • •Traction control switch (if faulty)
  • •Brake fluid (if low)

Additional Information

Affected Component
Brakes
Estimated Time
1-3 hours
Difficulty
medium
Severity
medium
Tools Required
5 items
Parts Required
3 items

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Solution
1. Preparation
  • Gather necessary tools and parts.
  • Disconnect the vehicle's battery to ensure safety while working on electrical components.
2. Inspect Wheel Speed Sensors
  • Remove the wheel to access the wheel speed sensor.
  • Clean the sensor and its connector; reattach securely.
  • If damaged, replace the wheel speed sensor with a new one.
  • Reinstall the wheel and torque lug nuts to specification (typically 76 lb-ft for Corolla).
3. Check Brake Fluid Level
  • Locate the brake fluid reservoir.
  • Inspect fluid level; if low, top off with the manufacturer-recommended brake fluid (DOT 3 or DOT 4).
  • Check for any brake fluid leaks in the system.
4. Test Traction Control Switch
  • Locate the traction control switch on the dashboard.
  • Use a multimeter to check for continuity when the switch is pressed.
  • Replace the switch if it is faulty or shows no continuity.
5. Inspect ABS Module
  • Check ABS module connections for corrosion or damage.
  • If the ABS module shows error codes, consider replacing it as per manufacturer specifications.
  • Reconnect any loose connectors and ensure they are secure.