Rear windshield defroster
S-33
Rear windshield defroster
Check of heating wire
1. Place the ignition switch in the ON position;
2. Turn on the switch of rear windshield
defroster.
Caution:
● Direct contact of the test terminal of
circuit test instrument with the heating
wire of rear windshield defroster may
damage the heating wire. You should
wrap the test terminal with aluminum foil,
through which the test shall be made with
the heating wire.
3. Connect the positive (+) of voltmeter with
the positive of heating wire, with the
negative (-) grounded.
4. Slowly slide the tested positive terminal
from the positive to the negative while
checking the voltage. Confirm that there
shall be an appropriate decrease in the
voltage.
Measured part
Voltage (reference value)
(1) (2) Ca. 12V Ca.0V
5. If incorrect, or the change of voltage too fast,
it indicates that there are problems in the
heating wire, replace the heating wire.
Repair of heating wire
1. Clean with unleaded gasoline, the damaged
part of heating wire;
2. Paste the tape on the upper/lower damaged
parts of heating wire.
3. Use a brush or marker pen to coat silver
powder or similar coating on the heating
wire for reparation;
4. In about 2—3min, carefully remove the tape,
keep it away from the repaired part.
Caution:
● Do not use the rear windshield defroster
before the paint is dried, otherwise it will
result in accident.
5. Heat continuously with hot air dryer for
30min until the temperature reached up to
150℃ {302℉} or the paint dried at
25℃{77℉} for 24hrs until completely
dried.
Disassembly/assembly of rear windshield
defroster relay (the pictures of this part
cannot be applied as the fuse box has
been amended)
1. Disconnect the negative cable of battery;
2. Remove the front trim panel at the driver
side;
3. Disconnect the relay plug connection of rear
windshield defroster.
Circuit test
Press down
Heating wire
Aluminum foil
Negative side
Positive side (1)
Broken heating wire
Tape
Location to be repaired
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