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 conditions. Remove any foreign material and replace any damaged components. Properly attach all components.

- | Looseness.

- | Damage.

- | Foreign material accumulation.

- | Proper mounting.

• | Check for proper routing of the wheel speed sensor wiring near spark plug wires.

• | Use the special tool J 39200 DMM to measure the resistance of the spark plug wires.

• | 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.