Econoline E350 1 Ton V8-5.4L SOHC VIN L (1999)
Trailer Lamps: Testing and Inspection
Flow of Diagnosis
1. Check the trailer feed wiring and the added trailer connector for obvious signs of damage.
2. Check the fuses and relays for damage.
3. If the concern remains after the inspection, determine the symptom(s) and proceed to the Symptom Chart. See: Symptom Related Diagnostic
Procedures
Initial Inspection and Diagnostic Overview
1. Check the trailer feed wiring and the added trailer connector for obvious signs of damage.
2. Check the fuses and relays for damage.
3. If the concern remains after the inspection, determine the symptom(s) and proceed to the Symptom Chart. See: Symptom Related Diagnostic
Procedures
Icons Used With Pinpoint Tests
