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 away
from spark plug wires. Refer to Spark Plug Wire Harness in Engine Electrical
for proper spark plug wire routing. Refer to Wheel Speed Sensor Replacement
in ABS Brakes - for proper wheel speed sensor wire routing. |
| • | 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. |
