Park, Side Marker and Rear License Lamps
For park/marker operation, power is supplied from the PARK LP fuse through
CKT 240 (ORN) to terminal F7 of the body relay block where power
is fed to the following components:
• | The park lamp relay coil |
• | The load side of the relay contacts |
For automatic operation, the body control module (BCM) grounds the park
lamp relay coil to feed CKT 74 (LT BLU) during auto headlamp
operation. When the headlamp switch is in the PARK or HEAD position, current
flows through CKT 74 (LT BLU) to the underhood fuse block.
The current feeds the following fuses:
The FR PRK fuse supplies power to the park side of the RH and LH park
and turn signal lamps. The FR PRK fuse supplies power to the LH and RH front
side marker lamps terminal A. During normal operation, when the park
lamps and the turn signals are turned ON, voltage would be applied to both
terminals of the front side marker lamp when the turn signal lamp flashes
ON. When this action occurs, the side marker lamp turns OFF. When the turn
signal lamp turns OFF, the side marker lamp will illuminate again. The LR
PRK fuse feeds CKT 2509 (BRN) which supplies voltage to the LH rear
park, license plate, license plate and turn signal lamps. The LH rear
park and turn signal lamp, LH rear license plate lamps and the LH rear side
marker lamps are grounded to G475 via CKT 1750 (BLK). The RR PRK
fuse feeds CKT 2609 (BRN/WHT) which supplies voltage to the RH rear
park, license plate, side marker and turn signal lamps. The RH rear park
and turn signal lamp, RH rear license plate lamps and the RH rear side marker
lamps are grounded to G422 via CKT 2250 (BLK). When the head lamp
switch is in the PARK position, the daytime running lights are ON when the
ambient light sensor senses daylight, and the headlights will be ON when
the ambient light sensor senses darkness.
Stop Lamps
During stop lamp operation, power is supplied from the STOP LP fuse
in the underhood fuse block through CKT 1540 (ORN) to the TCC/stop
lamp switch. When the brake is depressed, the contacts of the TCC/stop lamp
switch close, routing power to CKT 17 (WHT). CKT 17 supplies
power to the VECHMSL fuse and the high mount stop lamp relay coil. Current
flows from the VECHMSL fuse through CKT 1320 (LT BLU) to the
dome and high mount stop lamp. The ground is provided by G202 through CKT 1850
(BLK). The high mount stop lamp relay coil is grounded through CKT 350
(BLK) to G102, which energizes the relay. When the high mount stop lamp
relay is energized, current flows through CKT 895 (YEL) to the turn
signal switch. Current then flows to CKT 1418 (YEL/BLK) and CKT 1419
(DK GRN/WHT). CKT 1418 (YEL/BLK) supplies power to the LT TRN
(rear) fuse, which feeds the LH rear park and turn signal lamp terminal
A, through CKT 618 (YEL). Ground is provided by CKT 1750 (BLK)
to G475. CKT 1419 (GRN/WHT) supplies power to the RT TRN (rear)
fuse, which feeds the RH rear park and turn signal lamp terminal A,
through CKT 619 (DK GRN). Ground is provided by CKT 2250
(BLK) to G422. When the left or right turn signal is turned ON, the appropriate
turn signal will flash. The opposite side will remain ON in order to serve
as a stop lamp when the brakes are applied.
Turn Signal Lamps
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 G112. 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.
Hazard Lamps
During hazard operation, power is supplied from the HAZ LP fuse in the
underhood fuse block that is hot at all times through CKT 149 (ORN)
to the HAZ LP fuse contact of the turn signal switch. When the hazard switch
is activated, power is routed to the turn signal lamp flasher via CKT 1696
(GRY). From the turn signal flasher, current flows through CKT 1697
(PPL) back to the turn signal switch's now closed hazard contacts to the
following circuits for LH and RH turn signal operation:
Park and Marker Lamps
The voltage is supplied through the PRK LPS Fuse to the headlamp switch
at all times. The voltage is supplied to the following lamps with the headlamp
switch in the PARK or the HEAD position: