F13256
Non±reusable part
Molybdenum disulfide lithium base grease
: Specified torqueN´m (kgf´cm, ft´lbf)Column Upper
Bracket
Key Cylinder Key Unlock
Warning Switch
Ignition Switch
10.5 (110, 8)Column Tube
Assembly
2.2 (23, 19 in.´lbf)
Spring Guide
Tilt Spring Main Shaft Assembly Steering Column Housing
Tilt Lever Release Lever SpringTurn Signal Bracket
Compression
SpringSpring
Retainer Upper Bearing Inner Race Seat
Inner Race
12 (120, 9)
Pivot Pin
Spring
Park Lock Cable
Assembly
Shaft Bearing
Main Shaft Stopper
Pivot Pin Shift Lever
Housing
18 (180, 13)
Shift Lever
No. 2 Steering Column Ring
Tilt Lever Lock Shaft9.0 (90, 78 in.´lbf)
7.5 (75, 65 in.´lbf)
2.9 (29, 25 in.´lbf)
Transponder Key Coil
Key Cylinder
Lamp Assembly
Screw
Transponder Key Amplifier
Tilt No. 1
Stopper
± STEERINGTILT STEERING COLUMN
SR±13
3240 Author: Date:
2005 SEQUOIA (RM1146U)
SR0V1±06
F13611
Screw Extractor
F06733
± STEERINGTILT STEERING COLUMN
SR±17
3244 Author: Date:
2005 SEQUOIA (RM1146U)
DISASSEMBLY
NOTICE:
When using a vise, do not overtighten it.
1. REMOVE TRANSPONDER KEY COIL
2. REMOVE KEY CYLINDER LAMP ASSEMBLY
3. REMOVE COLUMN UPPER BRACKET
(a) Using a centering punch, mark the center of the 2 ta-
pered±head bolts.
(b) Using a 3 to 4 mm (0.12 to 0.16 in.) drill, drill a hole into
the 2 bolts.
(c) Using a screw extractor, remove the 2 bolts and column
upper bracket.
4. REMOVE SHIFT LEVER
Using a torx® socket wrench, remove the torx® screw and shift
lever.
5. REMOVE PARK LOCK CABLE ASSEMBLY
(See page AT±20)
6. REMOVE SHIFT LEVER HOUSING
Using a torx® socket wrench, remove the 3 torx® screws and
shift lever housing.
7. REMOVE RELEASE LEVER SPRING
8. REMOVE TURN SIGNAL BRACKET
Using a torx® socket wrench, remove the 2 torx® screws and
turn signal bracket.
SR0V2±05
F13613
F13618
R11908
± STEERINGTILT STEERING COLUMN
SR±19
3246 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION
1. INSPECT STEERING LOCK OPERATION
Check that the steering lock mechanism operates properly.
2. IF NECESSARY, REPLACE KEY CYLINDER
(a) Turn the ignition key to the ACC position.
(b) Push down the stop pin with a screwdriver, and pull out
the cylinder.
(c) Install a new cylinder.
HINT:
Make sure that the key is in the ACC position.
3. INSPECT IGNITION SWITCH (See page BE±24)
4. IF NECESSARY, REPLACE IGNITION SWITCH
(a) Remove the 2 screws and ignition switch.
(b) Install a new ignition switch with the 2 screws.
5. INSPECT KEY UNLOCK WARNING SWITCH
(See page BE±24)
6. IF NECESSARY, REPLACE KEY UNLOCK WARNING
SWITCH
(a) Slide out the key unlock warning switch.
(b) Install a new key unlock warning switch.
7. INSPECT TRANSPONDER KEY COIL
(See page BE±143)
8. IF NECESSARY, REPLACE TRANSPONDER KEY
COIL
9. IF NECESSARY, REPLACE TRANSPONDER KEY AM-
PLIFIER
(a) Remove the screw and transponder key amplifier.
(b) Install a new transponder key amplifier with the screw.
10. INSPECT BEARING
(a) Check that the bearing rotates smoothly without abnor-
mal noise.
If it does not rotate smoothly or abnormal noise occurs, replace
the column housing.
(b) Coat the bearing with molybdenum disulfide lithium base
grease.
F06737
F13612
SR±22
± STEERINGTILT STEERING COLUMN
3249 Author: Date:
2005 SEQUOIA (RM1146U)
7. INSTALL TURN SIGNAL BRACKET
Using a torx® socket wrench, install the turn signal bracket with
2 new torx® screws.
Torque: 7.5 N´m (75 kgf´cm, 65 in.´lbf)
HINT:
Make sure that the protrusion on the steering column housing
is fitted into the hole of the turn signal bracket.
8. INSTALL RELEASE LEVER SPRING
9. INSTALL SHIFT LEVER HOUSING
Using a torx® socket wrench, install the shift lever housing with
3 new torx® screws.
Torque: 12 N´m (120 kgf´cm, 9 ft´lbf)
10. INSTALL PARK LOCK CABLE ASSEMBLY (See page
AT±21)
11. INSTALL SHIFT LEVER
Using a torx® socket wrench, install the shift lever with a new
torx® screw.
Torque: 18 N´m (180 kgf´cm, 13 ft´lbf)
12. INSTALL COLUMN UPPER BRACKET
(a) Install the column upper bracket with 2 new tapered±
head bolts.
HINT:
Insert the bracket pin into the column tube hole.
(b) Tighten the tapered±head bolts until the bolt heads break
off.
13. INSTALL KEY CYLINDER LAMP ASSEMBLY
14. INSTALL TRANSPONDER KEY COIL
BE19B±08
BE±2
± BODY ELECTRICALTROUBLESHOOTING
3406 Author: Date:
2005 SEQUOIA (RM1146U)
TROUBLESHOOTING
PROBLEM SYMPTOMS TABLE
POWER OUTLET
SymptomSuspect AreaSee page
Electric power source cannot be out of the power outlet.
1. PWR OUTLET Fuse
2. INVERTER Relay
3. Main Switch
4. Voltage Inverter
5. Wire HarnessBE±14
BE±20
BE±20
BE±20
±
IPO system does not operate.
Power source cannot be supplied from the power outlet socket
when the ignition switch is off.1. PWR OUTLET Fuse
2. INVERTER Relay
3. Instrument panel J/B (IPO) circuit
4. Wire HarnessBE±14
BE±20
BE±20
±
IGNITION SWITCH
This system uses the multiplex communication system, so check diagnosis system of the multiplex commu-
nication system before you proceed with troubleshooting.
SymptomSuspect AreaSee page
Ignition switch is not set to each position.
1. Ignition Switch
2. Power Source Circuit (Body ECU)
3. Power Source Circuit (Driver door ECU)
4. Power Source Circuit (Passenger door ECU)BE±24
DI±1700
BE±34
DI±1849
KEY UNLOCK WARNING SYSTEM
This system uses the multiplex communication system, so check diagnosis system of the multiplex commu-
nication system before you proceed with troubleshooting.
SymptomSuspect AreaSee page
Key unlock warning system does not operate.
(The buzzer does not sound when the driver's door is opened with
the ignition OFF and key inserted)1. Key Unlock Warning Switch
2. Driver Door Courtesy Light Switch
3. Wire Harness
4. Combination MeterBE±24
BE±40
±
±
Key unlock warning system does not operate.
(The buzzer sounds when the ignition key is ACC or ON)1. Ignition Switch
2. Wire Harness
3. Combination MeterBE±24
±
±
w/o Daytime Running Light:
HEADLIGHT AND TAILLIGHT SYSTEM
This system uses the multiplex communication system, so check diagnosis system of the multiplex commu-
nication system before you proceed with troubleshooting.
SymptomSuspect AreaSee page
Only one headlight comes on.1. Bulb
2. Wire Harness±
±
ºLO±Beamº does not light (All).
1. HEAD Relay
2. Headlight Dimmer Switch
3. Wire Harness
4. Body ECUBE±27
BE±27
±
±
ºLO±Beamº does not light (One side).
1. Bulb
2. H±LP LH Fuse
3. H±LP RH Fuse
4. Wire Harness±
BE±14
BE±14
±
BE±8
± BODY ELECTRICALTROUBLESHOOTING
3412 Author: Date:
2005 SEQUOIA (RM1146U)
DEFOGGER SYSTEM
SymptomSuspect AreaSee page
Rear window defogger does not operate.
1. HTR Fuse
2. DEFOG Fuse
3. DEFOG Relay
4. Defogger Switch (in A/C Panel Switch)
5. Defogger Wire
6. Wire HarnessBE±14
BE±14
BE±14
BE±65
BE±65
±
Mirror defogger does not operate.
1. MIR±HTR Fuse
2. HTR Fuse
3. Mirror Heater Relay
4. Mirror Heater
5. Wire HarnessBE±14
BE±14
BE±65
BE±65
±
POWER WINDOW CONTROL SYSTEM
This system uses the multiplex communication system, so check diagnosis system of the multiplex commu-
nication system before you proceed with troubleshooting.
SymptomSuspect AreaSee page
All the power windows do not operate.
(Power door lock system is normal.)
1. POWER MAIN Relay
2. Driver Door ECU (Power Window Master Switch)
3. Body ECU
4. Wire HarnessBE±69
DI±1788
±
±
Only the driver's window does not operate.
1. Power Window Motor
2. Power Window Pulse Sensor Circuit
3. Power Window Limit Switch Circuit
4. Driver Door ECU (Power Window Master Switch)BE±69
DI±1803
DI±1800
±
ºWindow lock functionº does not operate.Driver Door ECU (Power Window Master Switch)BE±69
Only the rear LH window does not operate.
1. Power Window Motor
2. Power Window Switch
3. Body ECUBE±69
BE±69
±
Only the rear RH window does not operate.
1. Power Window Motor
2. Power Window Switch
3. Body ECUBE±69
BE±69
±
Only the front passenger's window does not operate.
1. Power Window Motor
2. Power Window Pulse Sensor Circuit
3. Power Window Limit Switch Circuit
4. Passenger Door ECUBE±69
DI±1841
DI±1838
±
The Key related power window operations do not operate with
driver side door key cylinder.
(Master switch operation is normal.)1. Door Key Lock and Unlock Switch Circuit
2. Driver Door ECU (Power Window Master Switch)DI±1791
±
º Auto up º or º Auto down º does not operate. *1
1. Power Window Pulse Sensor Circuit
2. Power Window Limit Switch Circuit
3. Driver Door ECU (Power Window Master Switch)DI±1803
DI±1800
±
*1: º Auto up º or º Auto down º may not function when the manual switch is pressed and held for 2 sec. or
more with the window glass fully open or closed. In this case, by performing a sequence of the window glass
operations (full open, fully close and then half open), the function can be restored. If not, replace the driver
door ECU or passenger door ECU.
± BODY ELECTRICALTROUBLESHOOTING
BE±9
3413 Author: Date:
2005 SEQUOIA (RM1146U)
POWER DOOR LOCK CONTROL SYSTEM
This system uses the multiplex communication system, so check diagnosis system of the multiplex commu-
nication system before you proceed with troubleshooting.
SymptomSuspect AreaSee page
All the doors cannot be locked or unlocked.
(Power window control system is normal.)1. Door Unlock Detection Switch
2. Door Key Lock and Unlock Switch
3. Driver Door ECUBE±79
BE±79
±
Only one back lock control does not operate.
1. Back Door Lock Motor
2. Back Door Unlock Detection Switch
3. Back Door Key Lock and Unlock Switch
4. Back Door ECUBE±79
BE±79
BE±79
±
Driver door key related function does not operate.1. Door Key Lock and Unlock Switch
2. Driver Door ECUBE±79
±
Front passenger door key related function does not operate.1. Door Key Lock and Unlock Switch
2. Passenger Door ECUBE±79
±
Back door key related function does not operate.1. Door Key Lock and Unlock Switch
2. Back Door ECUBE±79
±
THEFT DETERRENT SYSTEM
This system uses the multiplex communication system, so check diagnosis system of the multiplex commu-
nication system before you proceed with troubleshooting.
SymptomSuspect AreaSee page
The theft deterrent system cannot be set.
1. Key Unlock Warning Switch Circuit
2. Door Unlock Detection Switch Circuit (Driver Door ECU)
Door Unlock Detection Switch Circuit (Passenger Door
ECU)
Door Unlock Detection Switch Circuit (Back Door ECU)
Door Unlock Detection Switch Circuit (Body ECU)
3. Engine Hood Courtesy Switch Circuit
4. Back Door Courtesy Light Switch
5. Courtesy Light Switch Circuit
6. Glass Breakage Sensor Circuit (*1)
7. Body ECUDI±1715
DI±1791
DI±1829
DI±1869
DI±1723
DI±1725
DI±1864
DI±1728
DI±1774
±
The system cannot be canceled when the ignition switch is turned
ON with a key.
1. AM1 Fuse
2. AM2 Fuse
3. Key Unlock Warning Switch Circuit
4. Ignition Switch
5. Body ECUBE±14
BE±14
DI±1715
BE±24
±
The system cannot be canceled when the back door is unlocked
with a key.
1. Back Door Unlock Detection Switch Circuit
2. Back Door Key Lock and Unlock Switch Circuit
3. Back door ECU
4. Body ECUDI±1869
DI±1882
±
±
The system does not operate when the engine hood is opened.1. Engine Hood Courtesy Switch Circuit
2. Body ECUDI±1725
±
Some of the system does not operate.
(Headlight does not come on.)
1. Bulb
2. HEAD Relay
3. DIMMER Relay
4. DRL No. 4 Relay
5. Headlight Dimmer Switch
6. Light Control Switch
7. Wire Harness
8. Body ECU±
BE±27
BE±27
BE±27
BE±27
BE±27
±
±
BE±10
± BODY ELECTRICALTROUBLESHOOTING
3414 Author: Date:
2005 SEQUOIA (RM1146U) Some of the system does not operate.
(Taillight does not come on.)
1. TAIL Fuse
2. TAILLIGHT Relay
3. Light Control Switch
4. Wire Harness
5. Body ECUBE±14
BE±27
BE±27
±
±
Some of the system do not operate.
(Theft deterrent horn or vehicle horn does not sound.)
1. HORN Fuse
2. SECURITY HORN Fuse
3. HORN Relay Circuit
4. Theft Deterrent Horn Circuit
5. Horn
6. Body ECUBE±14
BE±14
BE±145
BE±92
BE±145
±
While the warning is given, the system cannot be canceled by
unlocking the door with a key or transmitter.
1. Door Key Lock and Unlock Switch Circuit (Driver Door
ECU)
Door Key Lock and Unlock Switch Circuit (Passenger
Door ECU)
Door Key Lock and Unlock Switch Circuit (Back Door
ECU)
2. Body ECUDI±1794
DI±1832
DI±1882
±
*1: w/ Glass breakage sensor
WIRELESS DOOR LOCK CONTROL SYSTEM
This system uses the multiplex communication system, so check diagnosis system of the multiplex commu-
nication system before you proceed with troubleshooting.
HINT:
Troubleshooting of the wireless door lock control system is based on the premise that the door lock
control system operates normally. Accordingly, before troubleshooting the wireless door lock control
system, first make certain that the door lock control system operates normally.
If the trouble still reappears even though there are no abnormalities in any of the other circuits, check
and replace the Wireless Door Lock Control Receiver as the last step.
SymptomSuspect AreaSee page
All functions of wireless door lock control system do not operate.
1. Transmitter
2. Wireless Door Lock Control Receiver Circuit
3. Body ECUBE±98
DI±1737
±
Wireless door lock operates, but the buzzer does not sound.
(The buzzer does not sound when the customize function prohib-
its.)1. Wireless Door Lock Buzzer Circuit
2. Body ECUDI±1741
±
POWER SEAT CONTROL SYSTEM (w/o Driving Position Memory)
SymptomSuspect AreaSee page
Both Driver and Passenger Power seats do not operate.1. PWR SEAT Fuse
2. Wire HarnessBE±14
±
Driver's seat does not operate.1. Power Seat Switch (D)
2. Wire HarnessBE±109
±
Passenger's seat does not operate.1. Power Seat Switch (P)
2. Wire HarnessBE±109
±
ºSlide operationº does not operate.
1. Power Seat Switch (D, P)
2. Slide Motor (D, P)
3. Wire HarnessBE±109
BE±109
±
ºFront Vertical Operationº does not operate.
1. Power Seat Switch (D)
2. Front Vertical Motor (D)
3. Wire HarnessBE±109
BE±109
±
ºLifter Operationº does not operate.
1. Power Seat Switch (D)
2. Lifter Motor (D)
3. Wire HarnessBE±109
BE±109
±