Fusion FWD L4-2.3L VIN Z (2007)
J6-J8
Normal Operation - Fusion
When the brake pedal is applied, the stoplamp switch routes voltage to the smart junction box (SJB). The voltage is then routed out of the SJB to the
high mounted stoplamp through circuit CLS17 (YE/GY). When the SJB detects the brake pedal applied, the SJB provides voltage to the LH and RH
rear stoplamps through circuit CLS18 (GY/BN) and circuit CLS19 (VT/OG), respectively. Ground for the rear stoplamps is provided through circuit
GD171 (BK/GY).
Normal Operation - Milan, MKZ
When the SJB detects the brake pedal applied, voltage is routed to the stoplamps through circuit CLS17 (YE/GY). Ground for the stoplamps is
provided through circuit GD171 (BK/GY).
DTC B2044 (early build) or B2048 (late build) - is a continuous code that sets when the SJB detects a short to ground on the LH rear stop/turn lamp
voltage supply circuit.
DTC B2045 (early build) or B2049 (late build) - is a continuous code that sets when the SJB detects an open on the LH rear stop/turn lamp voltage
supply circuit.
DTC B2046 (early build) or B2050 (late build) - is a continuous code that sets when the SJB detects a short to ground on the RH rear stop/turn lamp
voltage supply circuit.
