Auto-On Headlight Sensor Inspection (If Equipped) - Suzuki 2006 SX4 Service Manual

Without initialization of the headlight auto leveling
system, it is not possible to obtain its proper function.
Also, if the headlight auto leveling system is not
initialized after replacing the headlight leveling control
module, the headlight leveling warning light in the
combination meter flashes.
1) Observe the following instructions.
• Park vehicle on level ground.
• Adjust air pressure of all tires to the specified
value respectively.
• Bounce vehicle body up and down by hand to
stabilize suspension.
2) Turn ignition switch to ON position.
3) Perform "Headlight Leveling Warning Light Check".
4) Connect service wire (2) to terminals of diagnosis
connector (1).
5) Perform Steps a) through b) described blow within
20 seconds after Step 4).
a) Turn lighting switch (3) to "HEAD" position and
then turn lighting switch to OFF position.
b) Repeat Step a) 2 times.
6) Confirm that headlight leveling warning light flashes
3 times and turns off, which indicates that system
initialization was completed properly. If it does not
turn off after flashing 3 times, it means initialization
was not successful. In such case, turn off ignition
switch and perform Steps 1) to 6) again.
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Auto-On Headlight Sensor Inspection (If
Equipped)
1) Disconnect negative (–) cable at battery.
2) Remove auto-on headlight sensor (1) located on the
passenger side of the dashboard (2). Be careful not
to damage the sensor (1) and dashboard by using
rag (3).
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3) Measure voltage between white wire terminal and
black wire terminal at the following condition.
If measured voltage is out of specification, replace
sensor.
Auto-on headlight sensor voltage specifications
Cover the sensor lens with hand: 0.4 V
Light the sensor lens with incandescent lamp
100 W: 3 – 4.5 V
Lighting Systems: 9B-33
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