2001 TOYOTA SEQUOIA terminal TC

I11337
B
+1
+2 S
E
I11337
B
+1
+2 S
E
I23750
Automatic
Stop
Position BE±52
± BODY ELECTRICALWIPER AND WASHER SYSTEM
3456 Author: Date:
2005 SEQUOIA (RM1146U)
9. INSPECT REAR WIPER MOTOR OPERATION
Connect the positive (+) lead from the battery to terminal 5 and
the negative (±) lead from the battery to the motor body or termi-
nal 4, and check that the motor operates.
If operation is not as specified, replace the motor.
10. Stopping at Stop Position:
INSPECT REAR WIPER MOTOR OPERATION
(a) Operate the motor at low speed and stop the motor opera-
tion anywhere except at the stop position by disconnect-
ing positive (+) lead from terminal 3.
(b) Connect terminals 2 and 5.
(c) Connect the positive (+) lead from the battery to terminal
1 and the negative (±) lead from the battery to the motor
body or terminal 4, and check that the motor stops run-
ning at the stop position after the motor operates again.
If operation is not as specified, replace the motor.

I21530
Ignition
Switch
Battery(Wire Harness Side)(3.4W) Fuel Gauge
Z05730
Warning Light
Ignition
Switch
Battery
1
23
45
Wire
Harness Side:
I28772
I01278
BE±56
± BODY ELECTRICALCOMBINATION METER
3460 Author: Date:
2005 SEQUOIA (RM1146U)
(c) Connect terminals 2 and 3 on the wire harness side con-
nector through a 3.4 watts test bulb.
(d) Turn the ignition switch ON, check that the bulb comes on
and the receiver gauge needle moves towards the full
side.
HINT:
Because of silicon oil in the gauge, it will take a short time for
the needle to stabilize.
If operation is not as specified, inspect the receiver gauge resis-
tance.
4. INSPECT FUEL LEVEL WARNING LIGHT OPERATION
(a) Disconnect the connector from the sender gauge.
(b) Connect terminals 2 and 3 on the wire harness side con-
nector.
(c) Turn the ignition switch ON and check that the warning
light comes on.
If the warning light does not come on, test the bulb or inspect
the wire harness.
5. INSPECT ENGINE COOLANT TEMPERATURE SEND-
ER GAUGE RESISTANCE
(a) Disconnect the engine coolant temperature sender
gauge.
(b) Measure the resistance between terminals 1 and 2 of the
connector according to the value(s) in the table below.
Temperature °C (°F)Resistance (W)
±20 (±4)13,840 to 16,330
20 (68)2,320 to 2,590
80 (176)310 to 326
110 (230)139.9 to 143.5
If resistance value is not as specified, replace the engine cool-
ant sender gauge.
6. INSPECT OIL PRESSURE SENDER OPERATION
(a) Disconnect the connector from the oil pressure sender.
(b) Check that no continuity exists between terminal and
ground with the engine stopped.
(c) Check that continuity exists between terminal and ground
with the engine running.
HINT:
Oil pressure should be over 24.5 kPa (0.25 kgf/cm
2, 3.55 psi).
If operation is not as specified, replace the oil pressure sender.

I01279
Warning Light
Ignition
Switch
Battery
I19428
21OFF
ON
N01212
BE1217
Warning Light
Ignition
Switch
Battery
± BODY ELECTRICALCOMBINATION METER
BE±57
3461 Author: Date:
2005 SEQUOIA (RM1146U)
7. INSPECT BRAKE WARNING LIGHT OPERATION
(a) Disconnect the connector from the brake fluid warning
switch.
(b) Release the parking brake pedal.
(c) Connect the terminals on the harness side of the level
warning switch connector.
(d) Start the engine and check that the warning light comes
on.
If the warning light does not come on, test the bulb or wire har-
ness.
8. INSPECT BRAKE FLUID LEVEL WARNING SWITCH
CONTINUITY
(a) Remove the reservoir tank cap and strainer.
(b) Disconnect the connector.
(c) Check that no continuity exists between the terminals with
the switch OFF (float up).
(d) Use siphon, etc. to drain fluid out of the reservoir tank.
(e) Check that continuity exists between the terminals with
the switch ON (float down).
(f) Pour the fluid back in the reservoir tank.
If continuity is not as specified, replace the switch.
9. INSPECT PARKING BRAKE SWITCH CONTINUITY
(a) Check that continuity exists between the terminal and
switch body with the switch ON (switch pin released).
(b) Check that no continuity exists between the terminal and
switch body with the switch OFF (switch pin pushed in).
If operation is not as specified, replace the switch or inspect
ground point.
10. INSPECT WASHER LEVEL WARNING LIGHT OPERA-
TION
(a) Disconnect the connectors from the combination meter.
(b) Connect the negative (±) lead from the battery to terminal
16.
(c) Turn the ignition switch ON and check that the warning
light comes on.
If the warning light does not come on, test the bulb.

N07797
OFF
ON
BE0044
Warning Light
Ignition
Switch
Battery
I28507
4
10
BE±58
± BODY ELECTRICALCOMBINATION METER
3462 Author: Date:
2005 SEQUOIA (RM1146U)
11. INSPECT WASHER LEVEL SWITCH CONTINUITY
(a) Check that there is no continuity between terminals with
the switch OFF (float up).
(b) Check that there is continuity between terminals with the
switch ON (float down).
If operation is not as specified, replace the jar & pump assem-
bly.
12. INSPECT BUCKLE SWITCH CONTINUITY
(See page DI±1126)
13. INSPECT OPEN DOOR WARNING LIGHT OPERATION
(a) Disconnect the connector from the door courtesy switch
and ground terminal on the wire harness side connector.
(b) Check that the warning light comes on.
If the warning light does not come on, test the bulb.
14. INSPECT PASSENGER SEAT BELT WARNING LIGHT
(a) Remove the center cluster finish panel.
(b) Disconnect the connectors from the center cluster in-
tegration.
(c) Connect the positive (+) lead from the battery to terminal
4 and the negative (±) lead to terminal 10, and check that
the warning light comes on.
If the warning light does not come on, inspect the bulb or wire
harness (See page DI±1126).

I28731
101 27
BE2MP±01
I18596
I18689
Wire Harness Side:
I18559
1
4
5
2 3
± BODY ELECTRICALDEFOGGER SYSTEM
BE±65
3469 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION
1. Connecter connected:
INSPECT DEFOGGER TIMER OPERATION
(a) Connect the positive (+) lead from the voltmeter to termi-
nals 1, 2 and 7 of the panel switch connector and the neg-
ative (±) lead to terminal 10.
(b) When the switch is OFF, the voltage should be approx.
12 V.
(c) Turn the defogger switch ON and check that the indicator
comes on and that the voltage is less than 1 V.
(d) After 15 minutes, check that the switch is OFF and the
voltage is approx. 12 V.
If operation is not as specified, replace the switch.
2. Connector disconnected:
INSPECT DEFOGGER SWITCH (in INTEGRATION
CONTROL PANEL SWITCH) CIRCUIT
Disconnect the connector from the panel switch and inspect the
connector on the wire harness side, as shown in the chart be-
low.
Tester connectionConditionSpecified condition
10 ± GroundAlwaysContinuity
1 ± GroundAlwaysBattery voltage
2 ± GroundIgnition switch OFF or ACCNo voltage
2 ± GroundIgnition switch ONBattery voltage
7 ± GroundIgnition switch OFFNo voltage
7 ± GroundIgnition switch ACC or ONBattery voltage
If the circuit is not as specified, inspect the circuit connected to
other parts.
3. INSPECT DEFOGGER RELAY CONTINUITY
ConditionTester connectionSpecified condition
Constant1 ± 2, 3 ± 4Continuity
Apply B+ between
terminals 1 and 2.3 ± 5Continuity
If continuity is not as specified, replace the relay.

I05027
2
13 5
2 5
135
I01291
Tester Probe
Tin FoilHeat Wire
I01292
At Center
I01293
0 Volts
Broken
WireSeveral
Volts
Battery
Side Ground SideFoil Strip

 BE±66
± BODY ELECTRICALDEFOGGER SYSTEM
3470 Author: Date:
2005 SEQUOIA (RM1146U)
4. INSPECT MIRROR HEATER RELAY CONTINUITY
ConditionTester connectionSpecified condition
Always1 ± 2Continuity
Always3 ± 5No continuity
Apply B+ between
terminals 1 and 2.3 ± 5Continuity
If continuity is not as specified, replace the relay.
5. INSPECT DEFOGGER WIRE
NOTICE:

When cleaning the glass, use a soft, dry cloth, and
wipe the glass in the direction of the wire. Take care
not to damage the wires.

Do not use detergents or glass cleaners with abrasive
ingredients.

When measuring voltage, wrap a piece of tin foil
around the tip of the negative probe and press the foil
against the wire with your finger, as shown in the il-
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.
VoltageCriteria
Approx. 5 VOkay (No break in wire)
Approx. 10 V or 0 VBroken wire
HINT:
If there is approximately 10 V, the wire is broken between the
center of the wire and the positive (+) end. If there is no voltage,
the wire is broken between the center of the wire and ground.
(d) Place the voltmeter positive (+) lead against the defogger
wire on the battery side.
(e) Place the voltmeter negative (±) lead with the foil strip
against the wire on the ground side.
(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.

I01294
Repair Point
Broken
Wire
Masking Tape
I01295
I18583
6 4
I24872
78
I28509
5
12
± BODY ELECTRICALDEFOGGER SYSTEM
BE±67
3471 Author: Date:
2005 SEQUOIA (RM1146U)
6. IF NECESSARY, REPAIR DEFOGGER WIRE
(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.
(c) Thoroughly mix the repair agent (Dupont paste No.
4817).
(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.
7. w/o Retract Mirror and Driving Position Memory:
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:
It will take a short time for the mirror to become warm.
If operation is not as specified, replace the mirror.
8. w/ Retract Mirror only:
INSPECT MIRROR HEATER OPERATION
(a) Connect the positive (+) lead from the battery to terminal
7 and the negative (±) lead to terminal 8.
(b) Check that the mirror becomes warm.
HINT:
It will take a short time for the mirror to become warm.
If operation is not as specified, replace the mirror.
9. w/ Retract Mirror and Driving Position Memory:
INSPECT MIRROR HEATER OPERATION
(a) Connect the positive (+) lead from the battery to terminal
5 and the negative (±) lead to terminal 12.
(b) Check that the mirror becomes warm.
HINT:
It will take a short time for the mirror to become warm.
If operation is not as specified, replace the mirror.

BE2MO±01
I08152
N14863
3 12
53
15
2
I1535121
I1535221
± BODY ELECTRICALPOWER WINDOW CONTROL SYSTEM
BE±69
3473 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION
1. INSPECT REAR DOOR POWER WINDOW SWITCH
CONTINUITY
Switch positionTester connectionSpecified condition
UP2 ± 3, 4 ± 5Continuity
OFF2 ± 3 ± 5Continuity
DOWN2 ± 4, 3 ± 5Continuity
If continuity is not as specified, replace the switch.
2. INSPECT POWER WINDOW SWITCH CIRCUIT
(Driver 's Door: See page DI±1788)
(Passenger 's Door: See page DI±1826)
(Rear Door: See page DI±1747)
(Back Door: See page DI±1747)
3. INSPECT POWER MAIN RELAY CONTINUITY
ConditionTester connectionSpecified condition
Always1 ± 2Continuity
Always3 ± 5No continuity
Apply B+ between
terminals 1 and 2.3 ± 5Continuity
If continuity is not as specified, replace the relay.
4. Driver 's Door:
INSPECT POWER WINDOW MOTOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal
1 and the negative (±) lead to terminal 2, and check that
the motor turns clockwise.
(b) Reverse the polarity and check that the motor turns coun-
terclockwise.
If operation is not as specified, replace the power window mo-
tor.
NOTICE:
Since the jam protection may not work properly, be sure to
conduct procedures described in ºHOW TO RESET POW-
ER MOTOR (RESET AND PULSE SWITCH)º after this in-
spection.