Testing and Inspection of Trailer Lamp Components | F 450 2WD Super Duty V10-68L (1999)
Trailer Lamps: Testing and Inspection
Flow of Diagnosis
1. Verify the customer concern by operating the trailer towing package.
2. Visually inspect for the obvious signs of electrical damage.
VISUAL INSPECTION CHART
Electrical
-
Fuse(s)
-
Corroded/loose connector(s)
-
Loose/broken wire(s)
-
Failed bulb(s)
3. If the concern is not visually evident, verify the symptom and proceed to Symptom Chart. See: Symptom Related Diagnostic Procedures
Initial Inspection and Diagnostic Overview
1. Verify the customer concern by operating the trailer towing package.
2. Visually inspect for the obvious signs of electrical damage.
VISUAL INSPECTION CHART
Electrical
-
Fuse(s)
-
Corroded/loose connector(s)
-
Loose/broken wire(s)
-
Failed bulb(s)
3. If the concern is not visually evident, verify the symptom and proceed to Symptom Chart. See: Symptom Related Diagnostic Procedures
