Inspection and Verification

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

1. Verify the customer concern by operating the speed control system.

Visual Inspection Chart:

2. Visually inspect for obvious signs of mechanical and electrical damage using the chart
3. Check the wiring harness for obvious signs of shorts, opens, bad connections, or damage.
4. Verify that the speedometer and stoplamps function correctly.
5. Verify that the throttle cable is adjusted correctly and not holding the throttle open or increasing idle speed.
6. Make sure the throttle linkage operates freely and smoothly when connected to the speed control cable and speed control actuator.
7. If the fault is not visually evident, verify the symptom and proceed to the Symptom Chart. Diagnosis By Symptom