Kia Carnival 2007 Workshop Manual page 1414

2007 > 2.7L V6 GASOLINE >
INSPECTION
Wrap tin foil around the end of the voltmeter test lead to prevent damaging the heater line. Apply finger pressure
on the tin foil, moving the tin foil along the grid line to check for open circuits.
1. Turn on the defogger switch and use a voltmeter to measure the voltage of each heater line at the glass center
point. If a voltage of approximately 6V is indicated by the voltmeter, the heater line of the rear window is
considered satisfactory.
2. If a heater line is burned out between the center point and (+) terminal, the voltmeter will indicate 12V.
3. If a heater line is burned out between the center point and (-) terminal, the voltmeter will indicate 0V.