Inspection and Verification

NOTE: If any concerns are noted with the speedometer, the stoplamps or the horn, address those concerns, referring to the appropriate sections, before continuing speed control diagnosis.

Verify the customer concern by operating the speed control system.
Visually inspect for obvious signs of mechanical and electrical damage. Refer to the following chart.
VISUAL INSPECTION CHART

Fig 1: Identifying Visual Inspection Chart
Courtesy of FORD MOTOR CO.
If the inspection reveals an obvious concern that can be readily identified, repair as necessary.
Verify the speedometer operates correctly by driving the vehicle. If the speedometer does not operate correctly, refer to INSTRUMENT CLUSTER-CONVENTIONAL or INSTRUMENT CLUSTER-NATURAL GAS VEHICLE .
If the vehicle is equipped with a diesel engine and the concern is still present after the inspection, refer to the appropriate TROUBLE SHOOTING - NO CODES article.
If the vehicle is equipped with a gasoline engine and the concern is still present after the inspection, go to the SYMPTOM CHART .