For 1990-2009 cars

The ABS components are sensitive to Electromagnetic Interference (EMI). Perform the following checks if an intermittent malfunction is suspected:

• | Check for proper installation of wiring harnesses resulting from add-on options.

• | Visually inspect the wheel speed sensor and the toothed ring for the following:

- | Visually inspect for looseness.

- | Visually inspect for damage.

- | Visually inspect for foreign material accumulation.

- | Visually inspect for proper mounting.

- | Replace any damaged components. Remove any foreign material and properly attach all components.

• | Check for proper routing of front wheel speed sensor wiring harness away from spark plug coils.

• | Monitor the scan tool wheel speeds while test driving the vehicle. Refer to the appropriate wheel speed DTC if any wheel speed drops or displays an erratic speed.