DT6.6 Check Condition of Speed Sensor Ring Teeth
^ Carefully inspect each tooth on the speed sensor ring. (Rear Axle Differential cover should still be off.)
^ Are any teeth missing, malformed, or damaged?
YES -- Replace exciter ring. Go to Drive Test Code 16 to verify concern is resolved. Description
NO -- Return to 6.2. DT6.2 Measure Sensor Output