my Toyota Corolla E140 (2006-2013) traction control light is on

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface.
• Disconnect the battery to prevent electrical shorts.

2. Scan for Error Codes

• Use an OBD-II scanner to retrieve any diagnostic trouble codes (DTCs).
• Document any codes related to the traction control system.

3. Inspect Wheel Speed Sensors

• Locate the wheel speed sensors at each wheel hub.
• Disconnect the electrical connectors and remove the sensors.
• Clean any debris from the sensor area and inspect for physical damage.
• Reinstall the sensors and reconnect the connectors.

4. Check Brake Fluid Level

• Open the hood and locate the brake fluid reservoir.
• Ensure the fluid level is within the recommended range.
• If low, top up with the appropriate brake fluid type (DOT 3 or DOT 4).
• Inspect brake lines for leaks; repair as necessary.

5. Examine ABS Module

• Locate the ABS module, typically found near the brake master cylinder.
• Check for any visible signs of damage or corrosion.
• Reconnect any loose wiring harnesses and ensure secure connections.

6. Test Traction Control Switch

• Locate the traction control switch on the dashboard.
• Test its function by pressing the switch to activate/deactivate traction control.
• If malfunctioning, replace the switch.