Hombre S Regular Cab 4WD V6-4.3L (1999)
Turn Signal Lamp: Description and Operation
During turn signal operation, power is supplied from the TURN fuse in the IP fuse block when the ignition switch is in the RUN or the START position.
Power is supplied to CKT 139 (PNK) to the normally closed TURN fuse contacts of the hazard switch through CKT 1508 (LT BLU) to the turn signal
flasher. From the turn signal flasher current flows through CKT 1697 (PPL) to the turn signal switch. When the turn signal switch is in the LEFT TURN
position, voltage is supplied to the LT TURN (front) fuse via CKT 1414 (LT BLU/WHT) and to the LT TRN (rear) fuse via CKT 1418 (YEL/BLK).
The LT TURN fuse supplies power to terminal A of the LH park and turn signal lamp and the LH side marker lamp via CKT 2114 (LT BLU). The LT
TRN fuse supplies power to terminal A of the LH rear park and turn signal lamp via CKT 618 (YEL). The LH park and turn signal lamp receives ground
through CKT 150 (BLK) to G111. The LH rear park and turn signal lamp receives ground through CKT 1350 (BLK) to G450. The LH side marker lamp
receives ground from CKT 2309 through terminal B of the LH park and turn signal lamp to G111, via CKT 150 (BLK).
When the turn signal switch is in the RIGHT TURN position, voltage is supplied to the RT TURN (front) fuse via CKT 1415 (DK BLU/WHT) and to
the RT TRN (rear) fuse via CKT 1419 (DK GRN/WHT). The RT TURN fuse supplies power to terminal A of the RH park and turn signal lamp and the
RH side marker lamp via CKT 2114 (DK BLU). The RT TRN fuse supplies power to terminal A of the RH rear park and turn signal lamp via CKT 619
(DK GRN). The RH park and turn signal lamp receives ground through CKT 250 (BLK) to GI 12. and the RH rear park and turn signal lamp receives
ground through CKT 1350 (BLK) to G450. The RH side marker lamp receives ground from CKT 2309 through terminal B of the RH park and turn
signal lamp to G112 via CKT 250 (BLK). The park side of the front park and turn signal lamps do not illuminate due to the voltage drop across the side
marker lamps. During operation, the lamps illuminate immediately. The lamps begin to flash when the current flow heats the timing element in the
flasher and repeatedly opens and closes the circuit.
