Circuit Operation

CIRCUIT OPERATION
Turn Signals
Voltage for the turn signals flows from the Power Distribution Center (PDC) to the ignition switch on circuit A2. With the key in the RUN position, the ignition switch connects voltage from the A2 circuit to the A22 circuit. A 40 Amp fuse in the PDC protects the A2 and A22 circuits.

Circuit A22 connects to a bus bar in the fuse block. L5 is one of the circuits fed by the bus bar. Circuit L5 contains a 10 Amp fuse and supplies voltage to the multi-function switch. The multi-function switch supplies voltage to the combination flashing unit on circuit L55. Voltage leaves the combination flashing unit on circuit L32 and flows to the multi-function switch connector.

Right Turn Signal
When the operator selects the right turn signal, the multi-function connects power from circuit L32 to circuits L60 and L62. Circuit L62 connects to the multi-function switch and feeds the right rear turn signal/hazard flasher/stop lamp.

Circuit L60 connects to the multi-function switch and feeds the right front turn signal/hazard flasher lamp and side marker lamp. Circuit L60 also splices to power the turn signal indicator lamp on the instrument cluster.

Left Turn Signal
When the operator selects the left turn signal, the multi-function connects power from circuit L32 to circuits L61 and L63. Circuit L63 connects to the multi-function switch and feeds the left rear turn signal/ hazard flasher/stop lamp.

Circuit L60 connects to the multi-function switch and feeds the left right front turn signal/hazard flasher lamp and side marker lamp. Circuit L61 also splices to power the turn signal indicator lamp on the instrument cluster.

Ground Circuit
Circuit Z1 provides ground for all the turn signal lamps, although the it has different grounding points for each turn signal circuit. Circuit Z2 provides the ground path for the combination flashing unit.