Suzuki RA410, Manual

Page: 636 / 761

DEFOGGER WIRE
INSPECTION
NOTE:
When cleaning rear window glass, use a dry cloth to wipe
it along heat wire (1) direction.
When cleaning glass, do not use detergent or abrassive-
containing glass cleaner.
When measuring wire voltage, use a tester with negative
probe (2) wrapped with a tin foil (3) which should be held
down on wire by finger pressure.
3
2
1) Checking wire damage
a. Turn main switch ON.
b. Turn defogger switch ON.
c. Check voltage at the center of each heat wire, as shown by
using a voltmeter.
If measured voltage is 10V, wire must be damaged between
its center and positive end. If voltage is zero, wire must be
damaged between its center and ground.
At center
4 – 6 V : Good
9 – 11 V : Broken
wire
0 – 2 V : Broken
wire
2) Locating damage in wire
a. Touch voltmeter positive (+) lead to heat wire positive termi-
nal end.
b. Touch voltmeter negative (–) lead with a foil strip to heat wire
positive terminal end, then move it along wire to the negative
terminal end.
c. The place where voltmeter fluctuates from zero to several
volts is where there is damage.
NOTE:
If heat wire is free from damage, voltmeter should indicate
12V at heat wire positive terminal end and its indication
should decrease gradually toward zero at the other termi-
nal (ground).
Several volts
0 – 2 volts
8-20 BODY ELECTRICAL SYSTEM
Voltage Criteria
Approx. 4 – 6 V Good (No break in wire)
Approx. 9 – 11 V or 0 – 2 V Broken wire