Power Circuits

CIRCUIT 28

Location: Connects UHFB connector cavity F9 to base of column connector cavity A back through UHFB to cavity E9 then to BCM cavity J3-B7.
Function: This circuit provides ground for the horn relay coil. The relay coil is grounded when the horn switch is closed (the horn pad is depressed) or when commanded by the BCM.

Check for OPENS/SHORTS.
Repair as needed.

CIRCUIT 29

Location: Connects UHFB connector cavity D10 to horn connector cavity B.
Function: This circuit provides power to the horn.

Check for OPENS/SHORTS.
Repair as needed.