Rear End Door Window / Back Window Defogger Wire Inspection - Suzuki SX4 Service Manual

4) Check that there is no continuity between terminal
"c" and "d". If there is continuity, replace relay.
5) Check that there is continuity between terminals "c"
and "d" when a 12 V battery is connected to
terminals "a" and "b".
If malfunction is found, replace it with a new one.
b a
c
d
Rear End Door Window / Back Window
Defogger Wire Inspection
NOTE
• When cleaning glass, use a dry cloth to
wipe it along heat wire (1) direction.
• When cleaning glass, do not use detergent
or abrasive-containing glass cleaner.
• When measuring wire voltage, use a tester
with positive probe (2) wrapped with a tin
foil (3) which should be held down on wire
by finger pressure.
Wire Damage Inspection
1) Start engine and run it idle speed.
2) Turn on defogger switch.
3) Measure voltage at each position(s) as follows.
Hatchback model:
Measure voltage at the center of each defogger wire
(1), and check defogger wire condition according to
the following table.
Sedan model:
Measure voltage at position "a" and position "b" of
each defogger wire (1), and check defogger wire
condition according to the following table.
If defogger wire open is found, go to next step.
c
d
a
b
I4RS0A950028-01
S7RW0A9506019
I2RH01950002-01
Glass / Windows / Mirrors:
Defogger wire voltage for Hatchback model
Voltage
10 – 12 V Defogger wire open between its center
and defogger wire ground terminal end
(3)
4 – 6 V Normal condition
0 – 1 V Defogger wire open between its center
and defogger wire power source
terminal end (2)
Defogger wire voltage for Sedan model
Measuring Voltage
position
5 – 7 V
"a"
8 – 10 V
12 – 14 V
0 – 1 V
2 – 4 V
"b"
5 – 7 V
[A]
3
[B]
3
"b"
5. Glass antenna [A]: Hatchback
Circuit
Circuit
Defogger wire open
between defogger wire
power source terminal end
(2) and position "a"
Normal condition
Defogger wire open
between position "a" and
center line (4)
Defogger wire open
between center line (4) and
position "b"
Normal condition
Defogger wire open
between position "b" and
defogger wire ground
terminal end (3)
1
2
1
5
4
2
"a"
I6RW0B950008-01
[B]: Sedan model
model
9E-21