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Exterior Lighting: Headlamps

SMART JUNCTION BOX (SJB) DTC LIST

DTC Description Perform Test
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 article.