Inspection and Verification

NOTE: If any concerns are noted with the speedometer, stoplamps, or horn, address those concerns by referring to the appropriate vehicle systems 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.
3. If the fault is not visually evident, verify the symptom and refer to self-test diagnostics. Reading and Clearing Diagnostic Trouble Codes