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2003
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F 550 2WD Super Duty V8-5.4L SOHC VIN L
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Repair and Diagnosis
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Lighting and Horns
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Courtesy Lamp
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Testing and Inspection
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Diagnostic Trouble Code Tests and Associated Procedures
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B Code Charts
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B2449
B2449
PINPOINT TEST A: THE INTERIOR LAMPS ARE INOPERATIVE
Test A1:
Test A2-A5: