F 450 2WD Super Duty V8-6.0L DSL Turbo VIN P (2006)
rear lamp).
Possible Causes
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Circuit 5 (OG/LB) short to voltage
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Circuit 9 (LG/OG) short to voltage
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Circuit 511 (LG) short to voltage
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Stoplamp switch
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Multifunction switch
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Trailer brake control module