Manufacturer Code Charts: 6: 6.6

- Verify ignition is OFF.

- Remove the speed sensor from the rear axle housing (4010) and inspect for a buildup of metal chips on speed sensor magnetic pole.

- Are metal chips present?

YES -- Drain and clean rear axle housing. Go to 6.7. 6.7

NO -- Leave speed sensor out. Go to 6.7. 6.7