Flow of Diagnosis

NOTE: If any concerns are noted with the speedometer, yellow ABS warning indicator lamp, stoplamps, or horn, address those concerns before continuing speed control diagnosis.

1. Verify the customer concern by operating the speed control system.
2. Visually inspect for obvious signs of mechanical and electrical damage:

Mechanical
- Damaged speed control actuator cable
- Speed control actuator cable not attached to throttle

Electrical
- Fuse(s)
- Damaged wiring
- Loose, corroded, or dirty connections
- Damaged speed control actuator switches

3. If the fault is not visually evident, verify the symptom and refer to the Symptom Chart. Symptom Related Diagnostic Procedures