Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Tundra 2000-2006 Approved 04-06 techinfo.toyota.com ileaf 06toyrm 06toypdf 06rmsrc 06tundra be defsydou insp
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BE-103
BODY ELECTRICAL - DEFOGGER SYSTEM (Double Cab)
BE2LB-01
Wire Harness Side
INSPECTION
1. INSPECT DEFOGGER SWITCH (in INTEGRATION
CONTROL PANEL SWITCH) CIRCUIT
Disconnect the connector from the panel and inspect the con-
nector on wire harness side, as shown in the chart.
I27503
Tester Connection Condition Specified Condition
4 - Ground Ignition switch OFF or ACC Below 1 V
4 - Ground Ignition switch ON 10 - 14 V
6 - Ground Constant Continuity
10 - Ground Constant Continuity
14 - Ground Ignition switch OFF or ACC Below 1 V
14 - Ground Ignition switch ON 10 - 14 V
15 - Ground Constant 10 - 14 V
If the result is as specified, replace the panel.
2. INSPECT DEFOGGER RELAY (Making: DEFOG) CON-
5 TINUITY
1 2 Tester Connection Specified Condition
3-4 Continuity
No continuity
3-4
(When battery voltage is applied to terminals 1 and 2)
4 3-5 No continuity
3 Continuity
I24627 3-5
(When battery voltage is applied to terminals 1 and 2)
If the continuity is not as specified, replace the relay.
BE-104
BODY ELECTRICAL - DEFOGGER SYSTEM (Double Cab)
3. INSPECT MIRROR HEATER RELAY (Marking: MIR
1 HTR) CONTINUITY
2
Condition Specified Condition
3 5
3-5 No continuity
5
Continuity
2 1 3-5
(When battery voltage is applied to terminals 1 and 2)
3
If the continuity is not as specified, replace the relay.
N14863
4. INSPECT DEFOGGER WIRE
NOTICE:
S When cleaning the glass, use a soft and dry cloth and
Tester Probe
wipe the glass in the direction of the wire. Take care
Heat Wire not to damage the wires.
S Do not use detergents or glass cleaners with abrasive
Tin Foil
ingredients.
S When measuring voltage, wrap a piece of tin foil
I01291 around the tip of the negative probe and press the foil
against the wire with your finger, as shown in the il-
At Center lustration.
(a) Turn the ignition switch ON.
(b) Turn the defogger switch on.
(c) Inspect the voltage at the center of each heat wire, as
shown in the illustration.
Voltage Criteria
Approx. 5 V Okay (No break in wire)
Approx. 10 V or 0 V Broken wire
I01292
Foil Strip
HINT:
0 Volts Several If there is approximately 10 V, the wire is broken between the
Volts
center of the wire and the positive (+) end. If there is no voltage,
Broken the wire is broken between the center of the wire and ground.
Wire
(d) Place the voltmeter positive (+) lead against the defogger
Ground Side Battery wire on the battery side.
Side (e) Place the voltmeter negative (-) lead with the foil strip
against the wire on the ground side.
I01293 (f) Slide the positive (+) lead from the battery to the ground
side.
(g) The point where the voltmeter deflects from several V to
zero V is the place where the defogger wire is broken.
HINT:
If the heat wire is not broken, the voltmeter indicates 0 V at the
positive (+) end of the heat wire but gradually increases to about
12 V as the meter probe moves to the other end.
BE-105
BODY ELECTRICAL - DEFOGGER SYSTEM (Double Cab)
5. IF NECESSARY, REPAIR DEFOGGER WIRE
Repair Point (a) Clean the broken wire tips with grease, wax and silicon re-
mover.
(b) Place the masking tape along both sides of the wire for
repair.
Broken
(c) Thoroughly mix the repair agent (Dupont paste No.
Wire
4817).
Marking Tape
I01294
(d) Using a fine tip brush, apply a small amount of the agent
to the wire.
(e) After a few minutes, remove the masking tape.
(f) Do not repair the defogger wire for at least 24 hours.
I01295
6. INSPECT MIRROR HEATER OPERATION
(a) Connect the positive (+) lead from the battery to terminal
6 and the negative (-) lead to terminal 4.
(b) Check that the mirror becomes warm.
HINT:
4 6
It will take a short time for the mirror to become warm.
If operation is not as specified, replace the mirror.
I18583
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