Suzuki 2007 XL7, Руководство по обслуживанию

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Lighting Systems: 9B-2
Daytime Running Lamps (DRL)
The low beam headlamps operate at reduced intensity
when in daytime running lamps (DRL) mode. The ground
circuit to the switch side of the DRL relay has a resistor
in-line to reduce the intensity of the low beam
headlamps for DRL operation. The body control module
(BCM) receives a signal from the ambient light sensor
indicating a low or high ambient, outside, light level.
Under daylight conditions the BCM grounds the DRL
relay control circuit energizing the DRL control relay. The
now closed relay supplies ground directly to the low
beam headlamps and to the BCM on the headlamp low
beam signal circuit. The low beam headlamps now
illuminate with reduced intensity. The DRL relay is
grounded at G203. Any time the headlamps are
illuminated the DRL will not illuminate. Manual park
lamps do not effect DRL operation.
The conditions necessary for the BCM to illuminate the
DRL are as follows:
• The ignition switch is in the RUN position.
• The headlamps are in the AUTO position.
• The park brake is OFF, released.
• The BCM is receiving a high light condition from the
ambient light sensor.
• The transmission is not in the PARK position.
Fog Lamps
The FOG LP 10A fuse in the fuse block - underhood
supplies battery positive voltage to the switch side of the
fog lamp relay at all times. When the fog lamp switch is
pressed, it supplies a momentary voltage signal on the
front fog lamp switch signal circuit to the body control
module (BCM). The BCM then supplies ground to the
coil side of the fog lamp relay, energizing the relay. The
switch side of the fog lamp relay then supplies voltage to
both front fog lamps. The front fog lamps are connected
to ground at G101. The park lamps or headlamps must
be ON for the fog lamps to operate.
Park, Tail and Marker Lamps
The park lamps consist of the park, tail, marker and
license lamps. These lamps are illuminated any time the
headlamp switch is in the PARK, ON position, or anytime
the body control module (BCM) illuminates the
headlamps. The PARK fuse in the fuse block -
instrument panel (I/P) supplies voltage to both the coil
and switch input side of the park lamp relay. The BCM
controls the park lamp relay by grounding the park lamp
control circuit energizing the relay.
For automatic lamp control (ALC) the BCM receives a
signal from the ambient light sensor indicating a low or
high ambient (outside) light level. Under low light
conditions the BCM grounds the park lamp relay control
circuit energizing the park lamp relay. The now closed
relay supplies voltage on the park lamp supply voltage
circuit directly to the lamps. The BCM always turns ON
the park lamps and headlamps together when in the ALC
mode.
For manual operation, when the headlamp switch is in
the PARK position, the headlamp switch supplies ground
to the BCM on the park lamp switch signal circuit. In
response, the BCM grounds only the park lamp relay
control circuit, and the lamps illuminate as stated above.
The conditions necessary for the BCM to activate the
ACL mode are as follows:
• The ignition switch is in the RUN position.
• The headlamps are in the AUTO position.
• The park brake is released. If the park brake is applied
after the ignition key is placed in the RUN position the
ALC is not effected.
Turn Signal Lamps
The LH Tsig 15A or RH Tsig 15A fuse in the fuse block -
I/P provides ignition positive voltage to the turn signal
relay. The turn signal lamps may only be activated with
the ignition switch in the ON position. When the turn
signal switch is placed in either the left or right position,
current flow is from the turn signal relay output to the
turn signal switch assembly. The turn signal relay sends
an ON-OFF voltage signal to either the left or right turn
signals and their instrument panel cluster (IPC) indicator
through the turn signal switch.
Hazard Lamps
The 15A HAZARD fuse in the fuse block - I/P provides
battery positive voltage to the turn signal relay. When the
hazard switch is activated, the turn signal relay provides
an ON - OFF voltage to all of the turn signal lamps and
both turn signal indicators through the hazard switch.
The lamps receive a ground at G101, G401, or G403.
Stop Lamps
The 15A Stop Lamp fuse located in the fuse block -
underhood, supplies battery positive voltage to the
normally open stop lamp switch. When the driver
presses the brake pedal, the switch contacts close and
battery positive voltage is supplied to both left and right
stop lamp assemblies, the center high mounted stop
lamp (CHMSL), the engine control module (ECM), and
the throttle actuator control (TAC) module. The stop
lamps are grounded at G401 and G403. The CHMSL is
grounded at G301.
Backup Lamps
The 15A CHMSL/BACKUP fuse in the fuse block -
underhood supplies ignition positive voltage to the park/
neutral position (PNP) switch of the automatic
transmission. When the transmission is placed in
reverse, the switch supplies voltage to the back up
lamps and the inside rearview mirror. The back up lamps
receive ground at G401 and G403.