Initial Inspection and Diagnostic Overview
NOTE: All measurements MUST be carried out using a digital multimeter.1. Verify the customer concern by operating the stoplamps.
2. Visually inspect for obvious signs of mechanical and electrical damage:
VISUAL INSPECTION CHART
Mechanical
^ Damaged Brake Pedal Position (BPP) switch
^ Damaged direction indicator switch
Electrical
^ Failed fuse(s)
^ Damaged wire harness
^ Loose or corroded connectors
^ Damaged stoplamp bulb
^ Damaged shorting bar
3. If the concern is not visually evident, determine the symptom and proceed to the Symptom Chart. Symptom Related Diagnostic Procedures