Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 2004-2007 Approved SRM 34 20ulf inspec40
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70-32
WINDSHIELD/WINDOWGLASS/MIRROR - WINDOW DEFOGGER SYSTEM
700SS-02
INSPECTION
1. INSPECT HAZARD WARNING SIGNAL SWITCH ASSY
(a) Check the defogger switch illuminates.
Standard:
Measurement Condition Specified Condition
Battery positive (+) ILL+ (6)
Illuminates
Battery negative (-) ILL- (5)
If the result is not as specified, replace the switch assy or bulb.
6 5 4 3 2 1
B67616
(b) Check the defogger timer.
(1) Connect the positive (+) lead from the battery to ter-
minal 2 and the negative (-) lead to terminal 3.
(2) Connect the positive (+) lead from the battery to ter-
minal 1 through a 1.4 W test bulb.
(3) Push the outer defogger switch ON then check that
the switch and the test bulb turn off after they illumi-
Switch ON
nate for 12 to 18 minutes.
If the result is not as specified, replace the switch assy.
1.4 W Test Bulb
B67615
2. INSPECT OUTER REAR VIEW MIRROR ASSY LH (w/
OUTER MIRROR HEATER)
(a) Inspect operation of the mirror heater.
Standard:
Measurement Condition Specified Condition
Battery positive (+) H+ (1)
Mirror becomes warm
Battery negative (-) H- (5)
If the result is not as specified, replace the mirror assy.
1 2 3 4 5
6 7 8 910
B67612
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 3214
70-33
WINDSHIELD/WINDOWGLASS/MIRROR - WINDOW DEFOGGER SYSTEM
3. INSPECT OUTER REAR VIEW MIRROR ASSY RH (w/
OUTER MIRROR HEATER)
(a) Inspect operation of the mirror heater.
Standard:
Measurement Condition Specified Condition
Battery positive (+) H+ (1)
Mirror becomes warm
Battery negative (-) H- (5)
If the result is not as specified, replace the mirror assy.
1 2 3 4 5
6 7 8 910
B67611
4. INSPECT FRONT WINDOW (DEICER WIRE) (W/
DEICER)
Standard:
(a) Inspect the resistance of the deicer wire.
Terminal No. Condition Specified Condition
1-2 Constant Below 1
If the result is not as specified, replace the window.
B69297
5. INSPECT BACK WINDOW (DEFOGGER WIRE)
Defogger Wire NOTICE:
Tester Probe S When cleaning the glass, wipe the glass along the
wire using a soft and dry cloth. Take care not to dam-
age the wires.
S Do not use detergents or glass cleaners including
Tin Foil
abrasive ingredients.
S When measuring voltage, wrap a piece of tin foil
B66134 around the tip of the negative probe and press the foil
against the wire with your finger, as shown in the il-
lustration
At Center (a) Turn the ignition switch ON.
(b) Turn the defogger switch ON.
(c) Inspect the voltage at the center of each defogger wire,
as shown in the illustration.
Standard:
Voltage Criteria
Approx. 5 V Okay, wire is not broken
Approx. 10 V or 0 V Wire is broken
B63720
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 3215
70-34
WINDSHIELD/WINDOWGLASS/MIRROR - WINDOW DEFOGGER SYSTEM
HINT:
Foil Strip Less than
0V If there is approximately 10 V, the wire may be broken between
10V
the center of the wire and the end on the battery side. If there
Broken is no voltage, the wire may be broken between the center of the
Wire wire and the end on the ground side.
V Battery (d) Place the voltmeter positive (+) lead against the defogger
Ground Side
Side wire on the battery side.
(e) Place the voltmeter negative (-) lead with the foil strip
B63721 against the wire on the ground side.
(f) Slide the positive (+) lead from the battery side to the
ground side.
(g) The point where the voltmeter deflects from approx 10 V
to 0 V is the place where the defogger wire is broken.
HINT:
If the defogger wire is not broken, the voltmeter indicates 0 V
at the positive (+) end of the defogger wire but gradually in-
creases to about 12 V as the meter probe moves to the other
end.
(h) If necessary, repair the defogger wire.
Repair Point (1) Clean the broken wire tips with grease, wax and sili-
cone remover.
(2) Place the masking tape along the both sides of the
wire.
Broken
(3) Thoroughly mix the repair agent (Dupont paste No.
Wire 4817).
Masking Tape
B63722
(4) Using a fine tip brush, apply a small amount of the
agent to the wire.
(5) After a few minutes, remove the masking tape.
NOTICE:
Do not repair the defogger wire again for at least 24 hours.
B63723
6. INSPECT FR WIPER DEICER RELAY (W/ DEICER)
3 (a) Inspect the resistance.
Standard:
5 Terminal No. Specified Condition
10 k or higher
3-5 Below 1
2 1 (When battery voltage is applied to terminals 1 and 2)
If the result is not as specified, replace the relay.
B70481
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 3216
70-35
WINDSHIELD/WINDOWGLASS/MIRROR - WINDOW DEFOGGER SYSTEM
7. INSPECT DEFOGGR RELAY
(a) Inspect the resistance.
Standard:
Terminal No. Specified Condition
3-4 Below 1
4
10 k or higher
3-5 Below 1
(When battery voltage is applied to terminals 1 and 2)
B70482
If the result is not as specified, replace the relay.
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 3217
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