TOYOTA SEQUOIA 2001 Service Repair Manual

SA0L6±03
± SUSPENSION AND AXLEHEIGHT CONTROL VALVE
SA±167
3163 Author: Date:
2005 SEQUOIA (RM1146U)
INSTALLATION
Installation is in the reverse order of removal (See page SA±166).

SA1I9±03
F16849
N´m (kgf´cm, ft´lbf) : Specified torque
29 (300, 21)
5.4 (55, 48 in.´lbf)
Rear Height
Control Sensor
SA±168
± SUSPENSION AND AXLEREAR HEIGHT CONTROL SENSOR
3164 Author: Date:
2005 SEQUOIA (RM1146U)
REAR HEIGHT CONTROL SENSOR
COMPONENTS

SA2D3±01
F16835Matchmarks
F16836
± SUSPENSION AND AXLEREAR HEIGHT CONTROL SENSOR
SA±169
3165 Author: Date:
2005 SEQUOIA (RM1146U)
REMOVAL
1. DISCONNECT CONNECTOR
2. DISCONNECT HEIGHT CONTROL SENSOR LINK
(a) Put matchmarks on the height control sensor link and
bracket.
(b) Remove the nut and disconnect the sensor link.
Torque: 5.4 N´m (55 kgf´cm, 48 in.´lbf)
3. REMOVE REAR HEIGHT CONTROL SENSOR
(a) Disconnect the wire harness clamp.
(b) Remove the 2 bolts and rear height control sensor.
Torque: 29 N´m (300 kgf´cm, 21 ft´lbf)

SA1IB±03
SA±170
± SUSPENSION AND AXLEREAR HEIGHT CONTROL SENSOR
3166 Author: Date:
2005 SEQUOIA (RM1146U)
INSTALLATION
Installation is in the reverse order of removal (See page SA±169).

SA2CW±01
F16828
F16828
± SUSPENSION AND AXLESUSPENSION CONTROL ECU
SA±171
3167 Author: Date:
2005 SEQUOIA (RM1146U)
SUSPENSION CONTROL ECU
REPLACEMENT
1. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
2. REMOVE INTEGRATION CONTROL PANEL
(See page BO±89)
3. REMOVE SUSPENSION CONTROL ECU
(a) Disconnect the connector.
(b) Remove the screw and suspension control ECU.
4. INSTALL SUSPENSION CONTROL ECU
(a) Install the suspension control ECU with the screw.
(b) Connect the connector.
5. INSTALL INTEGRATION CONTROL PANEL
(See page BO±97)
6. CONNECT CABLE TO NEGATIVE BATTERY TERMI-
NAL
7. PERFORM INITIALIZATION (See page IN±20)
Some systems need initialization when disconnecting the cable
from the negative battery terminal.

BR0A9±04
± BRAKEBRAKE SYSTEM
BR±1
3168 Author: Date:
2005 SEQUOIA (RM1146U)
BRAKE SYSTEM
PRECAUTION

Care must be taken to replace each part properly as it could affect the performance of the brake
system and result in a driving hazard. Replace the parts with parts having the same part number
or equivalent.

It is very important to keep parts and the area clean when repairing the brake system.

If the vehicle is equipped with a mobile communication system, refer to the precautions in the
IN section.

BR08P±07
BR±2
± BRAKETROUBLESHOOTING
3169 Author: Date:
2005 SEQUOIA (RM1146U)
TROUBLESHOOTING
PROBLEM SYMPTOMS TABLE
Use the table below to help you find the cause of the problem. The numbers indicate the priority of the likely
cause of the problem. Check each part in order. If necessary, replace these parts.
SymptomSuspect AreaSee page
Low pedal or spongy pedal
1. Fluid leaks for brake system
2. Air in brake system
3. Piston seals (Worn or damaged)
4. Master cylinder (Faulty)DI±1059
BR±4
BR±27
BR±36
BR±15
Brake drags
1. Brake pedal free play (Minimum)
2. Parking brake pedal travel (Out of adjustment)
3. Parking brake wire (Sticking)
4. Parking brake (Shoe clearance out of adjustment)
5. Pad (Cracked or distorted)
6. Piston (Stuck)
7. Piston (Frozen)
8. Tension or return spring (Faulty)
9. Vacuum leaks for booster system
10.Master cylinder (Faulty)BR±6
BR±9
±
BR±42
BR±24
BR±33
BR±27
BR±36
BR±27
BR±36
BR±42
BR±21
BR±15
Brake pulls
1. Piston (Stuck)
2. Pad (Cracked or distorted)
3. Piston (Frozen)
4. Disc (Scored)
5. Vacuum leaks for booster system
6. Master cylinder (Faulty)BR±27
BR±36
BR±24
BR±33
BR±27
BR±36
BR±30
BR±39
BR±21
BR±15

± BRAKETROUBLESHOOTING
BR±3
3170 Author: Date:
2005 SEQUOIA (RM1146U) Hard pedal but brake inefficient
1. Fluid leaks for brake system
2. Air in brake system
3. Pad (Worn)
4. Pad (Cracked or distorted)
5. Pad (Oily)
6. Pad (Glazed)
7. Disc (Scored)
8. Vacuum leaks for booster systemDI±1059
BR±4
BR±24
BR±33
BR±24
BR±33
BR±24
BR±33
BR±24
BR±33
BR±30
BR±39
BR±21
Noise from brakes
1. Pad (Cracked or distorted)
2. Installation bolt (Loose)
3. Disc (Scored)
4. Pad support plate (Loose)
5. Sliding pin (Worn)
6. Pad (Dirty)
7. Pad (Glazed)
8. Tension or return spring (Faulty)
9. Anti±squeal shim (Damaged)
10.Shoe hold±down spring (Damaged)BR±24
BR±33
BR±27
BR±36
BR±30
BR±39
BR±33
BR±36
BR±24
BR±33
BR±24
BR±33
BR±42
BR±24
BR±33
BR±42

BR08Q±05
F13310
F13311
F13312
BR3885
BR±4
± BRAKEBRAKE FLUID
3171 Author: Date:
2005 SEQUOIA (RM1146U)
BRAKE FLUID
BLEEDING
HINT:
If any work is done on the brake system or if air is suspected in
the brake lines, bleed the air from the system.
NOTICE:
Do not let brake fluid remain on a painted surface. Wash it
off immediately.
1. FILL BRAKE RESERVOIR WITH BRAKE FLUID
Check the fluid level in the reservoir after bleeding each wheel.
Add fluid, if necessary.
Fluid: SAE J1703 or FMVSS No. 116 DOT3
2. BLEED MASTER CYLINDER
HINT:
If the master cylinder was disassembled or if the reservoir be-
comes empty, bleed the air from the master cylinder.
(a) Disconnect the brake lines from the master cylinder.
SST 09751±36011
(b) Slowly depress the brake pedal and hold it.
(c) Block off the outlet plug with your finger, and release the
brake pedal.
(d) Repeat (b) and (c) 3 or 4 times.
3. BLEED BRAKE LINE
(a) Connect the vinyl tube to the caliper.
(b) Depress the brake pedal several times, then loosen the
bleeder plug with the pedal held down.
(c) At the point when fluid stops coming out, tighten the
bleeder plug, then release the brake pedal.
Torque: 11 N´m (110 kgf´cm, 8 ft´lbf)
(d) Repeat (b) and (c) until all the air in the fluid has been bled
out.

± BRAKEBRAKE FLUID
BR±5
3172 Author: Date:
2005 SEQUOIA (RM1146U)
(e) Repeat the procedure on the previous page to bleed the
air out of brake line for each wheel.
4. CHECK FLUID LEVEL IN RESERVOIR
Check the fluid level and add fluid if necessary.
Fluid: SAE J1703 or FMVSS No. 116 DOT3