Auto-On Headlight Operation Inspection (If Equipped); Drl Operation Inspection (If Equipped); Inspection Of Headlight Leveling Control Module And Its Circuit (Vehicle Equipped With Auto Leveling Headlight System) - Suzuki Grand Vitara 2011 Manual

9B-15 Lighting Systems:
Auto-On Headlight Operation Inspection (If
Equipped)
1) Turn ignition switch to ON position and then turn
lighting switch to "AUTO" position.
2) Release parking brake lever.
3) Check headlights for operation as follows. If
headlights do not turn ON or OFF, go to "Auto-On
Headlight System Symptom Diagnosis (If
Equipped)".
a) Cover auto-on headlight sensor by hand and
check that headlights light up then.
b) Light over auto-on headlight sensor vertically
with on incandescent lamp of approx, 100 W
apart from about 100 mm (3.94 in.) (1) and check
that headlights go off then.
c) In the state as described in Step a), pull up
parking brake lever and check that headlights go
off then.

DRL Operation Inspection (If Equipped)

1) Confirm that lighting switch is in OFF position.
2) Confirm that dimmer and passing switch is in low beam position.
3) Check DRL for operation as follows.
a) Turn ignition switch to ON position and check headlights remain OFF.
b) Start engine and run it at idle speed. Check headlights turn ON at low beam.
c) Switch dimmer and passing switch to high beam position and check headlights remain tuning ON at low beam.
4) If a malfunction is found, go to "DRL System Symptom Diagnosis (If Equipped)".
Inspection of Headlight Leveling Control Module and Its Circuit (Vehicle Equipped With Auto
Leveling Headlight System)
Headlight auto leveling control module and its circuits can be checked at headlight auto leveling control module wiring
couplers by measuring voltage and pulse signal.
CAUTION
!
Headlight auto leveling control module cannot be checked by itself. It is strictly prohibited to connect
voltmeter or ohmmeter to headlight auto leveling control module with couplers disconnected from it.
Voltage Check
Check voltage between each terminal of headlight auto leveling control module and vehicle body ground under each
condition. If measured voltage is out of standard value, check circuit (including switch and sensor) of terminal where
voltage was measured.
NOTE
• As each terminal voltage is affected by the battery voltage, confirm that it is 11 V or more when
ignition switch is ON.
• Voltage with asterisk (*) cannot be measured by voltmeter because it is pulse signal.Check it with
oscilloscope if necessary.
[A]
S6JB0A9204017
[A]: Fig. for Step a)
[B]
I5JB0A920013-02
[B]: Fig. for Step b)
S6JB0A9204018
S6JB0A9204019
1