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Home >> Mercury >> 2009 >> Mariner Base, 2.5 7, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 31 (Exterior Lighting System) >> Diagnostic Tests >> Headlamps >> DTC Charts

DTC Charts

WARNING: This page is about a different car, the 2009 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
SMART JUNCTION BOX (SJB) DTC CHART

DTC Description Action
B1470 Lamp Headlamp Input Circuit Failure Go to Pinpoint Test F .
B2501 LF Lamp Low Beam Circuit Failure If the low beam is inoperative, go to Pinpoint Test C .
If the low beam is always on, go to Pinpoint Test F .
B2503 RF Lamp Low Beam Circuit Failure If the low beam is inoperative, go to Pinpoint Test C .
If the low beam is always on, go to Pinpoint Test F .
B2586 Headlamp Mode Select Circuit Failure If the high beams are inoperative, go to Pinpoint Test B .
If the high beams are always on, go to Pinpoint Test F .
B2598 Headlamp Relay Circuit Failure If the high beams are inoperative, go to Pinpoint Test B .
If the high beams are always on, go to Pinpoint Test F .
All other DTCs - REFER to MULTIFUNCTION ELECTRONIC MODULES .