why is my Honda Accord ABS light on and traction control disabled?

Solution

1. Preparation

• Gather necessary tools and parts.
• Park the vehicle on a level surface and engage the parking brake.
• Disconnect the negative terminal of the battery to ensure safety.

2. Inspect Wheel Speed Sensors

• Tools Required: Socket set, multimeter
• Remove the wheel on the affected corner.
• Locate the wheel speed sensor; it is typically mounted near the brake rotor.
• Disconnect the sensor plug and visually inspect for any physical damage or dirt.
• Use a multimeter to check the sensor's resistance; replace if outside manufacturer specifications.

3. Check ABS Fuses

• Tools Required: Fuse puller or small pliers
• Locate the fuse box (usually under the dash or in the engine compartment).
• Identify the ABS fuse using the diagram on the fuse box cover.
• Remove the fuse and check for continuity; replace if blown.

4. Inspect Brake Fluid

• Tools Required: Clean rag
• Open the master cylinder reservoir cap.
• Check the brake fluid level; top off with the recommended DOT fluid if low.
• Inspect for any signs of contamination or moisture; if contaminated, flush the brake system.

5. Examine Wiring and Connectors

• Tools Required: Screwdriver, multimeter
• Trace the wiring harness from the ABS module to the wheel speed sensors.
• Look for any signs of wear, fraying, or corrosion at connectors.
• Repair or replace damaged wiring as necessary.

6. Test ABS Module

• Tools Required: Multimeter, possibly a scan tool for advanced diagnostics
• Reconnect the battery and turn the ignition to the ON position without starting.
• Use a multimeter to check for power and ground at the ABS module.
• If there are electrical issues, replace the module as needed.