2001 TOYOTA SEQUOIA Transfer

F19340
A
B Four Wheel Drive Control ECU:
Transfer Actuator:
± TRANSFERONE TOUCH 2±4 SELECTOR SYSTEM
TR±43
2981 Author: Date:
2005 SEQUOIA (RM1146U)
10. INSPECT ACTUATOR
NOTICE:
Inspect the actuator with the transfer removed from the vehicle.
(a) Turn the ignition switch to ON.
(b) Check the operating sound produced by four wheel drive control switch operation and the differential
lock switch operation.
If the operating sound cannot be heard, check the four wheel control ECU and the wire harness in the next
step. When the wire harness and four wheel drive control ECU are normal, replace the actuator.
11. INSPECT WIRE HARNESS
(a) Disconnect the actuator connector and four wheel drive
control ECU connector.
(b) Check continuity of the wire harness between the four
wheel drive control ECU and the actuator.
Tester connectionSpecified condition
TM1 (A±2) ± TM1 (B±2)Continuity
TM2 (A±1) ± TM2 (B±1)Continuity
TL1 (A±41) ± TL1 (B±3)Continuity
TL2 (A±40) ± TL2 (B±4)Continuity
TL3 (A±39) ± TL3 (B±5)Continuity
HM2 (A±4) ± HM2 (B±7)Continuity
HM1 (A±3) ± HM1 (B±8)Continuity
P1 (A±10) ± CDL (B±9)Continuity
HL2 (A±42) ± HL2 (B±11)Continuity
HL1 (A±23) ± HL1 (B±12)Continuity
GND (A±7) ± GND (B±6)Continuity
GND (A±7) ± GND (B±10)Continuity
If continuity is not as specified, repair or replace the wire har-
ness.

F19566
TR±44
± TRANSFERONE TOUCH 2±4 SELECTOR SYSTEM
2982 Author: Date:
2005 SEQUOIA (RM1146U)
12. INSPECT FOUR WHEEL DRIVE CONTROL ECU
(a) Connect the wire harness side connector to the four wheel drive control ECU and inspect the wire har-
ness side connector from the back, as shown.
STANDARD VALUE OF ECU TERMINAL
Terminals (Symbols)ConditionSTD Voltage (V)
3 (HM1) ± 4 (HM2)

Ignition switch ON

Four wheel drive control switch ºH4º position " Four wheel drive control switch
ºL4º position
10 to 14 " 2 or less
or
4 (HM2) ± 3 (HM1)

Ignition switch ON

Four wheel drive control switch ºL4º position " Four wheel drive control switch
ºH4º position
or
0 (0.5 s) to 14 (50 ms)
pulse generation
2 (TM1) ± 1 (TM2)

Ignition switch ON

Differential lock switch is in ºOFFº position

Four wheel drive control switch ºH2º position " Four wheel drive control switch
ºH4º position
10 to 14 " 2 or less
or
1 (TM2) ± 2 (TM1)

Ignition switch ON

Keep pressing the differential lock switch for approx. 2 seconds to turn it ON

Four wheel drive control switch ºH4ºor ºL4º position " Four wheel drive control
switch ºH2º position
or
0 (0.5 s) to 14 (50 ms)
pulse generation
5 (DM1) ± 6 (DM2)
Ignition switch ON

A.D.D. FREE "A.D.D. LOCK10 to 14 " 2 or less
or
6 (DM2) ± 5 (DM2)
Ignition switch ON

A.D.D. LOCK "A.D.D. FREE
or
0 (0.5 s) to 14 (50 ms)
pulse generation
4 (HM2) ± 7 (GND)

Ignition switch ON

Four wheel drive control switch ºH4º position " Four wheel drive control switch
ºL4º position
2 or less " 10 to 14
7 (GND) ± Body ground
Ignition switch OFFContinuity
12 (IG) ± 7 (GND)
Ignition switch ON10 to 14
18 (DL2) ± 7 (GND)
Ignition switch ON

A.D.D. LOCK "A.D.D. FREE0.88 or less " 10 to 14
19 (DL1) ± 7 (GND)
Ignition switch ON

A.D.D. FREE "A.D.D. LOCK0.88 or less " 10 to 14
23 (HL1) ± 7 (GND)

Ignition switch ON

Four wheel drive control switch ºH4º position " Four wheel drive control switch
ºL4º position
10 to 14 " 1.5 or less
25 (2±4) ± 7 (GND)

Ignition switch ON

Four wheel drive control switch ºL4º position " Four wheel drive control switch
ºH2º or ºH4º position
10 to 14 " 1.5 or less
26 (SPD) ± 7 (GND)
During drivingPulse generation

± TRANSFERONE TOUCH 2±4 SELECTOR SYSTEM
TR±45
2983 Author: Date:
2005 SEQUOIA (RM1146U)28 (IND3) ± 7 (GND)

Ignition switch ON

Four wheel drive control switch ºH2º position " Four wheel drive control switch
ºL4º position
10 to 14 " 0 to 3.5
32 (LO) ± 7 (GND)

Ignition switch ON

Four wheel drive control switch ºH2º position " Four wheel drive control switch
ºL4º position
10 to 14 " 1.5 or less
33 (DL) ± 7 (GND)

Ignition switch ON

Differential lock switch is in ºOFFº position " Keep pressing the differential lock
switch for approx. 2 seconds to turn it ON
10 to 14 " 1.5 or less
9 (ADD) ± 7 (GND)
Ignition switch ON

A.D.D. FREE "A.D.D. LOCK10 to 14 " 1.5 or less
39 (TL3) ± 7 (GND)

Ignition switch ON

Four wheel drive control switch ºH2º position " Four wheel drive control switch
ºL4º position

Differential lock switch is in ºOFFº position " Keep pressing the differential lock
switch for approx. 2 seconds to turn it ON
1.5 or less " 10 to 14
40 (TL2) ± 7 (GND)

Ignition switch ON

Four wheel drive control switch ºH2º position " Four wheel drive control switch
ºH4º position

Differential lock switch is in ºOFFº position " Keep pressing the differential lock
switch for approx. 2 seconds to turn it ON
10 to 14 " 1.5 or less
41 (TL1) ± 7 (GND)

Ignition switch ON

Four wheel drive control switch ºH2º position " Four wheel drive control switch
ºH4º or ºL4º position

Differential lock switch is in ºOFFº position " ºONº position
1.5 or less " 10 to 14
42 (HL2) ± 7 (GND)

Ignition switch ON

Four wheel drive control switch ºH4º position " Four wheel drive control switch
ºL4º position
1.5 or less " 10 to 14
45 (IND1) ± 7 (GND)

Ignition switch ON

Four wheel drive control switch ºH2º position " Four wheel drive control switch
ºH4º or ºL4º position
10 to 14 " 0 to 3.5
46 (IND2) ± 7 (GND)

Ignition switch ON

Differential lock switch is in ºOFFº position " Keep pressing the differential lock
switch for approx. 2 seconds to turn it ON
10 to 14 " 0 to 3.5
48 (N) ± 7 (GND)
Ignition switch ON

Transmission shift lever: positions other than N" N1.5 or less " 10 to 14
50 (L4) ± 7 (GND)

Ignition switch ON

Four wheel drive control switch ºH4º position " Four wheel drive control switch
ºL4º position
10 to 14 " 2 or less
10 (P1) ± 7 (GND)

Ignition switch ON

Four wheel drive control switch ºH2º position " Four wheel drive control switch
ºH4º or ºL4º position

Differential lock switch is in ºOFFº position " ºONº position
10 to 14 " 1.5 or less

PR05N±04
Z15303Matchmarks
Q07228
Matchmarks
F13575
Matchmarks
± PROPELLER SHAFTPROPELLER SHAFT ASSEMBLY (4WD)
PR±7
2990 Author: Date:
2005 SEQUOIA (RM1146U)
REMOVAL
1. REMOVE FRONT PROPELLER SHAFT
(a) Place matchmarks on the differential and propeller shaft
flange.
(b) Remove the 4 nuts, washers and bolts, and disconnect
the propeller shaft from the differential.
(c) Suspend the front side of the propeller shaft.
(d) Place matchmarks on the transfer and propeller shaft
flanges.
(e) Remove the 4 nuts and washers.
(f) Remove the propeller shaft from the transfer.
2. REMOVE REAR PROPELLER SHAFT
(a) Place matchmarks on the transfer and propeller shaft
flanges.
(b) Remove the 4 nuts and washers, and disconnect the pro-
peller shaft from the transfer.
(c) Suspend the front side of the propeller shaft.
(d) Place matchmarks on the differential and propeller shaft
flanges.
(e) Remove the 4 nuts, washers and bolts.
(f) Remove the propeller shaft from the differential.

PR07N±02
Z15303
Matchmarks
F13575
Matchmarks
Q07228
Matchmarks
± PROPELLER SHAFTPROPELLER SHAFT ASSEMBLY (4WD)
PR±9
2992 Author: Date:
2005 SEQUOIA (RM1146U)
INSTALLATION
1. INSTALL FRONT PROPELLER SHAFT
(a) Align the matchmarks on the propeller shaft flanges and
differential, and connect the flanges with the 4 bolts,
washers and nuts.
(b) Torque the 4 bolts.
Torque: 74 N´m (750 kgf´cm, 54 ft´lbf)
(c) Align the matchmarks on the propeller shaft flanges and
transfer, and connect the flanges with the 4 washers and
nuts.
(d) Torque the 4 nuts.
Torque: 88 N´m (897 kgf´cm, 65 ft´lbf)
2. INSTALL REAR PROPELLER SHAFT
(a) Align the matchmarks on the propeller shaft flanges and
differential, and connect the flanges with the 4 bolts,
washers and nuts.
(b) Torque the 4 bolts.
Torque: 88 N´m (897 kgf´cm, 65 ft´lbf)
(c) Align the matchmarks on the propeller shaft flanges and
transfer, and connect the flanges with the 4 washers and
nuts.
(d) Torque the 4 nuts.
Torque: 88 N´m (897 kgf´cm, 65 ft´lbf)

SA23P±03
F16856
4WD Control ECU
2WD/4HI and 4LO Switch
4WD and Center Diff. Lock
Indicator Light
(Combination Meter)
Transfer 4WD
Position Switch
Transfer L4 Position Switch
A.D.D. Actuator
Actuator Connector SA±60
± SUSPENSION AND AXLEA.D.D. CONTROL SYSTEM
3056 Author: Date:
2005 SEQUOIA (RM1146U)
A.D.D. CONTROL SYSTEM
LOCATION

F16855
2WD/4HI Switch
SA0356
F06638
SA±62
± SUSPENSION AND AXLEA.D.D. CONTROL SYSTEM
3058 Author: Date:
2005 SEQUOIA (RM1146U)
(g) Push the 2WD/4HI switch and check that the 4WD indica-
tor light goes off after it is blinking.
(h) Check the A.D.D. actuator operation by sound.
(i) Disconnect the actuator connector.
(j) Check the continuity between each terminal, as shown in
the chart.
Tester connected terminal numberSpecified condition
1 ± 3Continuity
1 ± 4No continuity
3 ± 5No continuity
4 ± 5No continuity
(k) Connect the actuator connector.
4. INSPECT TRANSFER 4WD POSITION SWITCH
(See page TR±9)
5. REMOVE A.D.D. ACTUATOR (See page SA±43)
6. INSPECT CLUTCH HUB AND CLUTCH SLEEVE
(a) Check the clutch hub and clutch sleeve for wear and dam-
age.
If necessary, replace them.
(b) Check that clutch sleeve slides smoothly on the clutch
hub.
7. MEASURE SLEEVE FORK AND CLUTCH SLEEVE
CLEARANCE
Using a feeler gauge, measure the clearance between the
sleeve fork and clutch sleeve.
Maximum clearance: 0.35 mm (0.0138 in.)
If the clearance exceeds the maximum, replace the fork or
sleeve.

BE2ML±01
BE±82
± BODY ELECTRICALTHEFT DETERRENT SYSTEM
3486 Author: Date:
2005 SEQUOIA (RM1146U)
THEFT DETERRENT SYSTEM
ON±VEHICLE INSPECTION
1. OUTLINE OF THEFT DETERRENT SYSTEM
When the theft deterrent system detects any theft, it informs
people around by flashing lights and sound.
All initial settings are performed in active mode. It can be
switched to passive mode by using the hand±held tester. (See
step 3. CHANGING METHOD OF PASSIVE MODE.)
HINT:
There are 4 conditions in this system: disarmed state, arming
preparation, armed state and alarm sounding.
(1) Disarmed state
Alarm function does not operate.
Theft deterrent function is not performed.
(2) Arming preparation
Time until transferring to armed state.
Theft deterrent function is not performed.
(3) Armed state
Theft deterrent function is ready.
(4) Alarm sounding:
When the system detects a theft, it informs people
around the vehicle using light and sound.
Refer to the table below for alarming method or
time.
Horn
Security horn
Alarm methodHeadlightAlarm method
Taillight
Interior light
Alarm time60 seconds
Alarm outputContinuous 0.4 secs. (ON)
0.4 secs. (OFF)
HINT:
Alarm output for the hazard is the same as the one for the haz-
ard on the vehicle.
If any of the doors is unlocked not by the key or wireless remote
control in the armed state, a force lock signal will be output.