Heat Wires

CAUTION:
^ Heat wires are printed on the inner side of the rear glass.
^ To clean, use a soft cloth and wipe horizontally along the wires.
^ Never use glass cleaner or equivalent.




^ When measuring voltage, wind a piece of tin foil around the tip of the negative probe and press the foil against the heat wire with your finger.

1. Turn the starter switch on.
2. Turn the defogger switch on.
3. Measure the voltage between the three points on the heat wire and the (-) terminal with a voltmeter.




4. Check that the voltage becomes smaller from (A) to (B) to (C).




5. If there is a point where the voltage suddenly drops to 0, it means there is a broken wire between this point and the point measured immediately before.
6. Move the test probe from the 0-Volts point toward the power supply and locate the point where the voltage rises rapidly in order to determine the location of broken wire.