2001 TOYOTA SEQUOIA terminal TC

H23941
RS11X±01
H24932
E
SW
RSCA OFF switch
± SUPPLEMENTAL RESTRAINT SYSTEMRSCA OFF SWITCH
RS±117
3400 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION
1. INSPECT RSCA OFF INDICATOR LIGHT
(a) Turn the ignition switch ON.
(b) Check that the RSCA OFF indicator light goes off after it
comes on for 3 seconds.
(c) Check that the RSCA OFF indicator light comes on after
pressing the RSCA OFF switch for approx. 2 seconds.
2. INSPECT RSCA OFF SWITCH CONTINUITY
(a) Inspect the continuity between each terminal.
Switch PositionTester ConnectionSpecified Condition
OFFSW (3) e E (4)No continuity
Hold ONSW (3) e E (4)Continuity
If continuity is not as specified, replace the RSCA OFF switch.

RS11Z±01
H23940Claw RS±118
± SUPPLEMENTAL RESTRAINT SYSTEMRSCA OFF SWITCH
3401 Author: Date:
2005 SEQUOIA (RM1146U)
INSTALLATION
1. INSTALL SWITCH BASE
(a) Connect the connectors.
(b) Engage the 3 claws to install the switch base.
2. INSTALL LOWER FINISH PANEL (SEE PAGE BO±97)
3. CONNECT CABLE TO NEGATIVE BATTERY TERMI-
NAL
4. PERFORM INITIALIZATION (SEE PAGE BE±77)
Some system need initialization when disconnecting the cable
from the negative battery terminal.
5. INSPECT SRS WARNING LIGHT (SEE PAGE DI±1137)

BE01E±12
± BODY ELECTRICALBODY ELECTRICAL SYSTEM
BE±1
3405 Author: Date:
2005 SEQUOIA (RM1146U)
BODY ELECTRICAL SYSTEM
PRECAUTION
NOTICE:
When disconnecting the battery terminal, initialize the following system after the terminal is recon-
nected.
System NameSee Page
Back Door Power Window Control SystemBE±77
Take care to observe the following precautions when performing inspections or removal and replacement
of body electrical related parts.
1. LIGHTING SYSTEM
Halogen bulbs have pressurized gas inside and require special handling.
They may burst or shatter if scratched or the bulb is dropped. Hold a bulb only by its plastic or metal case.
Don't touch the glass part of a bulb with bare hands.
2. SRS (SUPPLEMENTAL RESTRAINT SYSTEM)
The SEQUOIA is equipped with an SRS (Supplemental Restraint System) such as the driver airbag. Failure
to carry out service operations in the correct sequence could cause the SRS to unexpectedly deploy during
servicing, possibly leading to a serious accident. Before servicing (including removal and installation of parts,
inspection or replacement), be sure to read the precautions in the RS section (See page xx±xxx).
3. AUDIO SYSTEM
If the battery negative (±) terminal is disconnected, the preset AM, FM 1 and FM 2 stations stored in the
memory are erased, so be sure to make a memo of the stations and reset them after the battery terminal
is reconnected.
4. MOBILE COMMUNICATION SYSTEM
If the vehicle is equipped with a mobile communication system, refer to precautions in the IN section.

BE2MU±01
I27713
I27712
I05027
3
15
2 52
3
1
I24374
Wire Harness Side: BE±20
± BODY ELECTRICALPOWER OUTLET
3424 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION
1. INSPECT MAIN SWITCH CONTINUITY
Switch positionTester connectionSpecified condition
ON3 ± 5Continuity
OFF3 ± 5No continuity
Constant4 ± 5Continuity
Illumination circuit1 ± 2Continuity
If continuity is not as specified, replace the switch.
2. INSPECT MAIN INDICATOR LIGHT OPERATION
(a) Connect the positive (+) lead from the battery to terminal
1 and the negative (±) lead to terminal 2.
(b) Push the main switch and check that the indicator light
comes on.
If operation is not as specified, replace the switch.
3. INSPECT INVERTER RELAY CONTINUITY
ConditionTester connectionSpecified condition
Constant1 ± 2Continuity
Constant3 ± 5No continuity
Apply B+ between
terminals 1 and 23 ± 5Continuity
If continuity is not as specified, replace the relay.
4. INSPECT VOLTAGE INVERTER CIRCUIT
Disconnect the connector from the voltage inverter and inspect
the connector on the wire harness side as shown in the table
below.
Switch positionTester connectionSpecified condition
ON1 ± 4Battery positive voltage
OFF1 ± 4No voltage
If the circuit is not as specified, inspect the circuits connected
to other parts.

BE±22
± BODY ELECTRICALPOWER OUTLET
3426 Author: Date:
2005 SEQUOIA (RM1146U)A±10 ± Body ground
C±3 ± Body ground
C±4 ± Body ground
Ignition switch OFF for 2 hours " ON, or ignition
switch ON after disconnection and reconnection
of battery terminal cable.
10 to 14 V
B±6 ± Body groundAlwaysBelow 1 V
D±1 ± Body groundAlways10 to 14 V
F±1 ± Body groundIgnition switch OFF " ON or ACCBelow 1 V " 10 to 14 V
F±4 ± Body groundIgnition switch OFF " ONBelow 1 V " 10 to 14 V
G±12 ± Body groundAlwaysBelow 1 V
If the circuit is not as specified, inspect the circuit connected to
other parts.

I12794
13 16 15 14 9 8
17 HIAUTO
LO
OFF
FlashTAIL
3
21 54 6
7
10 12 11
BE2MT±01
I18635
1
2 34
5
I0502712
3 5
1
2 3
5
I18635
1
2 34
5
± BODY ELECTRICALHEADLIGHT AND TAILLIGHT SYSTEM
BE±27
3431 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION
1. INSPECT LIGHT CONTROL SWITCH CONTINUITY
Switch positionTester connectionSpecified condition
OFF±No continuity
TAIL14 ± 16Continuity
HEAD13 ± 14 ± 16Continuity
AUTO12 ± 16Continuity
If continuity is not as specified, replace the switch.
2. INSPECT HEADLIGHT DIMMER SWITCH CONTINU-
ITY
Switch positionTester connectionSpecified condition
Flash7 ± 8 ± 16Continuity
Low beam16 ± 17Continuity
High beam7 ± 16Continuity
If continuity is not as specified, replace the switch.
3. INSPECT HEAD RELAY CONTINUITY
ConditionTester connectionSpecified condition
Constant1 ± 2Continuity
Constant3 ± 5No continuity
Apply B+ between
terminals 1 and 2.3 ± 5Continuity
If continuity is not as specified, replace the relay.
4. INSPECT TAILLIGHT RELAY CONTINUITY
ConditionTester connectionSpecified condition
Constant1 ± 2Continuity
Constant3 ± 5No continuity
Apply B+ between
terminals 1 and 2.3 ± 5Continuity
If continuity is not as specified, replace the relay.
5. INSPECT DRL NO. 4 RELAY CONTINUITY (w/ Daytime
Running Light)
ConditionTester connectionSpecified condition
Constant1 ± 2Continuity
Constant3 ± 5No continuity
Apply B+ between
terminals 1 and 2.3 ± 5Continuity
If continuity is not as specified, replace the relay.

I18559
1
2 34
5
I19450
I19451
BE±28
± BODY ELECTRICALHEADLIGHT AND TAILLIGHT SYSTEM
3432 Author: Date:
2005 SEQUOIA (RM1146U)
6. INSPECT DIMMER RELAY CONTINUITY (w/ Daytime
Running Light)
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.
7. AUTO ON:
INSPECT AUTOMATIC LIGHT CONTROL
(a) Turn the ignition switch ON.
(b) Turn the light control switch to AUTO.
(c) Gradually cover the top of the sensor.
(d) Check that the accessory lights and the headlights should
turn ON.
8. AUTO OFF:
INSPECT AUTOMATIC LIGHT CONTROL
(a) Gradually expose the sensor.
(b) Check that the headlights and the accessory lights should
turn OFF.
9. INSPECT LIGHTS±OFF CONDITION
(a) Turn the ignition switch ON.
(b) Lights auto ON:
Gradually cover the top of the sensor.
(c) Check that the lights go off under the following conditions.
(1) Light control switch is OFF.
(2) The area surrounding the sensor gets bright.
(3) After the ignition switch is turned OFF and after 30
sec. from when open doors are all closed.
10. INSPECT LIGHTS±ON CONDITION
(a) Open the driver's door while the ignition switch is OFF.
(b) Turn the light control switch to AUTO leaving the door
open and cover the top of the sensor. Make sure that the
lights go on when the ignition switch is turned ON.
11. ADJUST AUTOMATIC LIGHT CONTROL SENSOR
(See page DI±1684)

BE0HZ±08
I12795
OFFON
54
1 2 3
15 166
7 8
9 10
11 17
14 13 12
I05027
1 2
3 55
2 13
BE±34
± BODY ELECTRICALFOG LIGHT SYSTEM
3438 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION
1. INSPECT FOG LIGHT SWITCH CONTINUITY
Switch positionTester connectionSpecified condition
OFF±No continuity
ON10 ± 11Continuity
If continuity is not as specified, replace the switch.
2. INSPECT FOG LIGHT RELAY CONTINUITY
ConditionTester connectionSpecified condition
Constant1 ± 2Continuity
Constant3 ± 5No continuity
Apply B+ between
terminals 1 and 2.3 ± 5Continuity
If continuity is not as specified, replace the relay.