Hyundai Santa Fe (DM): Rear Glass Defogger Printed Heater. Repair procedures
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.
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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.
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2. |
If a heater line is burned out between the center
point and (+) terminal, the voltmeter will indicate 12V.
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3. |
If a heater line is burned out between the center
point and (-) terminal, the voltmeter will indicate 0V.
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4. |
To check for open circuits, slowly move the test
lead in the direction that the open circuit seems to exist. Try to find
a point where a voltage is generated or changes to 0V. The point where
the voltage has changed is the open-circuit point.
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5. |
Use an ohmmeter to measure the resistance of each
heater line between a terminal and the center of a grid line, and between
the same terminal and the center of one adjacent heater line. The section
with a broken heater line will have a resistance twice that in other
sections. In the affected section, move the test lead to a position
where the resistance sharply changes.
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Repair Of Broken Heater Line
Prepare the following items :
1. |
Conductive paint.
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2. |
Paint thinner.
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3. |
Masking tape.
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4. |
Silicone remover.
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5. |
Using a thin brush :
Wipe the glass adjacent to the broken heater line,
clean with silicone remover and attach the masking tape as shown. Shake
the conductive paint container well, and apply three coats with a brush
at intervals of about 15 minutes apart. Remove the tape and allow sufficient
time for drying before applying power. For a better finish, scrape away
excess deposits with a knife after the paint has completely dried. (Allow
24 hours).
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Components and Components Location
Component Location 1. Rear glass defogger relay (Buil-in engine room relay box) 2. Rear glass defogger switch (Dual type) 3. Rear glass defogger switch (Manual type) 4. Rear glass defogger ...Rear Glass Defogger Switch. Repair procedures
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