2001 TOYOTA SEQUOIA battery

BE2D7±03
I18566
Left Side Heater Switch
Right Side Heater Switch
I18567
6
4
6
4
BE±124
± BODY ELECTRICALSEAT HEATER SYSTEM
3528 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION
1. INSPECT SEAT HEATER SWITCH CONTINUITY
Switch positionTester connectionSpecified condition
Right side3 ± 4 ± 6Continuity
OFF±No continuity
Left side3 ± 4 ± 6Continuity
Illumination circuit1 ± 2Continuity
If continuity is not as specified, replace the switch.
2. INSPECT SEAT HEATER INDICATOR LIGHT OPERA-
TION
(a) Connect the positive (+) lead from the battery to terminal
4 and the negative (±) lead to terminal 6.
(b) Push the seat heater switch (right or left side) and check
that the indicator light comes on.
If operation is not as specified, replace the switch.

I18626
Wire Harness Side:
I0502712
3 5
1
2 3
5
BE±126
± BODY ELECTRICALSEAT HEATER SYSTEM
3530 Author: Date:
2005 SEQUOIA (RM1146U)Tester connection
ConditionSpecified condition
1 ± Body groundSeat heater switch ONBattery positive voltage
If continuity is not as specified, replace the seat back pad.
6. INSPECT SEAT BACK CONTINUITY
Inspect the seat back continuity between terminals, as shown.
Tester connectionConditionSpecified condition
1 ± Body groundAlwaysContinuity
If continuity is not as specified, replace the seat back pad.
7. INSPECT SEAT 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.

BE2MI±01
1 CLOCK WILL NOT OPERATE
I18689
Wire Harness Side:
B +GND
Ye s
Ye sNo
No
Is there battery positive voltage between terminal +B and body
ground.
Is there continuity between terminal GND and body ground.
Replace clock (Integration Control and Panel).Open or short circuit in wire harness between terminal
+B and DOME fuse.
Open circuit in wire harness between terminal
GND and body ground.
± BODY ELECTRICALCLOCK
BE±127
3531 Author: Date:
2005 SEQUOIA (RM1146U)
CLOCK
TROUBLESHOOTING
HINT:
Troubleshoot the clock according to the table below.
ProblemNo.
Clock will not operate1
Clock loses or gains time2
Allowable error (per day): ± 1.5 seconds
1. PROBLEM NO. 1
(a) Check that the battery positive voltage is 10 to 16 V.
If voltage is not as specified, replace the battery.
(b) Check that the DOME fuse is not blown.
If the fuse is blown, replace the fuse and check for a short.
(c) Troubleshoot the clock as follows.
HINT:
Inspect the connector on the wire harness side.

2 CLOCK LOSES OR GAINS TIME
I18689
Wire Harness Side:
B +GND
Ye s
Is there battery positive voltage between terminal +B and
body ground.
Adjust or replace clock.Bellow 10 V
Locate cause and repair, or recharge battery.
BE±128
± BODY ELECTRICALCLOCK
3532 Author: Date:
2005 SEQUOIA (RM1146U)
2. PROBLEM NO. 2
(a) Check that the battery positive voltage is 10 to 16 V.
If voltage is not as specified, replace the battery.
(b) Inspect the error of the clock.
Allowable error (per day): ± 1.5 seconds
If the error exceeds the allowable value, replace the clock.
(c) Check that the clock adjusting button is struck and has
failed to return.
If the error exceeds the allowable value, replace the clock.
(d) Troubleshoot the clock according to the following flow±
chart.
HINT:
Inspect the connector on the wire harness side.

I03487
GARAGE DOOR
OPENER SWITCH
LEARN MODE
INDICATOR
OPERATION
ORIGINAL
TRANSMITTERPRESSED
ENTER
EXIT
ON
OFF20 sec.
INDICATOR flashes
at a rate of 1 Hz
INDICATOR
flashes at a
rate of 5.6 Hz RELEASED
ON
OFF BE±130
± BODY ELECTRICALGARAGE DOOR OPENER SYSTEM
3534 Author: Date:
2005 SEQUOIA (RM1146U)
New code registration timing chart
If a code can not be registered, observe the following condi-
tions.
HINT:

If the battery of original transmitter is consumed.

Press the switch of the transmitter repeatedly in registra-
tion mode, as some transmitters stop transmitting for 1 to
2 seconds.

This system is not applicable to the garage door opener
which had been made before 1982.
2. CODE DELETION
(a) Press the switches at both ends of the garage door open-
er simultaneously for 20 seconds.
HINT:
When transferring to deletion mode, garage door indicator
(green) blinks in 6 Hz cycle.
(b) When releasing the switch within 10 seconds after trans-
ferring to deletion mode, all the registered codes will be
erased.
HINT:
Press the switch until 6 Hz cycle blinking stops, so that the de-
fault code for check is set.

I21538
Wire Harness Side:
I21537
Wire Harness Side:
± BODY ELECTRICALGARAGE DOOR OPENER SYSTEM
BE±135
3539 Author: Date:
2005 SEQUOIA (RM1146U)
3. w/ Sliding Roof:
INSPECT GARAGE DOOR OPENER SWITCH CIRCUIT
Disconnect the connector from the switch and inspect the con-
nector on the wire harness side, as shown.
Tester connectionConditionSpecified condition
1 ± GroundAlwaysContinuity
3 ± GroundAlwaysBattery positive voltage
If the circuit is not as specified, inspect the power source or wire
harness.
4. w/o Sliding Roof:
INSPECT GARAGE DOOR OPENER SWITCH CIRCUIT
Disconnect the connector from the switch and inspect the con-
nector on the wire harness side, as shown.
Tester connectionConditionSpecified condition
9 ± GroundAlwaysBattery positive voltage
13 ± GroundAlwaysContinuity
If the circuit is not as specified, inspect the power source or wire
harness.

BE2D6±02
I10154
I24870
12
6
± BODY ELECTRICALENGINE IMMOBILISER SYSTEM
BE±143
3547 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION
1. INSPECTION TRANSPONDER KEY COIL CONTINU-
ITY
Check that there is continuity between terminals 1 and 2.
If continuity is not as specified, replace the coil.
2. INSPECT TRANSPONDER KEY ECU CIRCUIT
Connect the wire harness side connector to the ECU and in-
spect the wire harness side connector from the back side, as
shown in the table below.
ConditionTester connectionSpecified condition
Always6 ± 12Battery positive voltage
If the circuit is as specified, replace the ECU with a new one.
If the circuit is not as specified, inspect the circuit connected to
other parts.

BE0FZ±25
I24377
I24378
I04197
± BODY ELECTRICALHORN SYSTEM
BE±145
3549 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION
1. INSPECT HORN SWITCH
(a) Disconnect the negative (±) terminal from the battery.
(b) Remove the left and right covers from the steering wheel.
(c) Using a torx socket wrench, loosen the 2 bolts.
(d) Pull up the horn pad and place it on the steering column,
as shown.
HINT:
Do not disconnect the connector from the horn pad.
(e) Disconnect the connector from the slip ring.
(f) Check that no continuity exists between terminal 6 of the
connector and body ground.
(g) Check that continuity exists between terminal 6 of the
connector and body ground when the horn contact plate
is pressed against the steering spoke assembly.
If continuity is not as specified, repair or replace the steering
wheel or wire harness as necessary.
(h) Install the horn pad in place and using a torx socket
wrench, torque the 2 bolts.
Torque:
7.1 N´m (72 kgf´cm, 62 in.´lbf)
(i) Install the left and right covers.
(j) Connect the negative (±) terminal to the battery.
2. INSPECT HORN OPERATION
Connect the positive (+) lead from the battery to the terminal
and negative (±) lead to the horn body and check that the horn
blows.
If operation is not as specified, replace the horn.
3. INSPECT HORN SWITCH CIRCUIT
(See page DI±1764)