Initial Inspection and Diagnostic Overview
1. Verify the customer's concern by operating speed control system to duplicate the condition.2. Inspect to determine if one of the following mechanical or electrical concerns apply:
VISUAL INSPECTION CHART
Mechanical
^ Inspect and verify that:
- Actuator cable is adjusted properly without holding the throttle open or increasing idle speed.
- Throttle linkage operates freely and smoothly when connected to the actuator cable and speed control servo.
- Deactivator switch is properly linked to brake pedal arm.
Electrical
^ Verify proper horn operation.
^ Verify stoplight operation.
^ check circuit fuses, power distribution box fuse HORN (20 A), fuse junction panel uses 9 (15 A) and 6 (15 A).
^ Inspect and verify that:
- Connections are complete with no loose wires or terminals.
- Wiring is not broken, shorted or corroded.
- Wiring is not misrouted.
3. If the inspection reveals obvious concern(s) that can be readily corrected, correct those concern(s).
4. If the concern(s) remains after the inspection, determine the symptom(s) and go to the Symptom Chart.