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 DEFOGGER WIRE VOLTAGE TABLE .
If defogger wire open is found, go to next step.
Defogger wire voltage
DEFOGGER WIRE VOLTAGE TABLEVoltage Circuit 10 - 12 V Defogger wire open between its center and defogger wire power source terminal end (2) 4 - 6 V Normal condition 0 - 1 V Defogger wire open between its center and defogger wire ground terminal end (3) - 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 .