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Wire Damage Inspection

Start engine.
Turn on defogger switch.

Measure voltage at the center 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.

DEFOGGER WIRE VOLTAGE

Voltage	Circuit
0 - 1 V	Defogger wire open between its center and defogger wire power source terminal end (2)
4 - 6 V	Normal condition
10 - 12 V	Defogger wire open between its center and defogger wire ground terminal end (3)

Fig 1: Measuring Voltage Center Of Defogger Wire

G08899605

Courtesy of SUZUKI OF AMERICA CORP.

Touch voltmeter negative (-) lead to defogger wire ground terminal end (1).
Touch voltmeter positive (+) lead with a foil strip to defogger wire power source terminal end (2), then move it along wire to defogger wire ground terminal end (1).
The place where voltmeter fluctuates from 10 - 12 V to 0 - 1 V is where there is open.

If found defective, repair defogger wire referring to REAR END DOOR WINDOW DEFOGGER WIRE REPAIR .

Fig 2: Connecting Voltmeter Negative Lead To Defogger Wire Ground Terminal End
Courtesy of SUZUKI OF AMERICA CORP.