2001 TOYOTA SEQUOIA Page 18

BR1NK±02
± BRAKEABS & VSC ACTUATOR
BR±53
3220 Author: Date:
2005 SEQUOIA (RM1146U)
REASSEMBLY
Reassembly is in the reverse order of disassembly (See page BR±52).

BR1NL±04
BR±54
± BRAKEABS & VSC ACTUATOR
3221 Author: Date:
2005 SEQUOIA (RM1146U)
INSTALLATION
Installation is in the reverse order of removal (See page BR±51).
HINT:

After installation, fill the brake reservoir with brake fluid and bleed brake system (See page BR±4).

Check for leaks.
NOTICE:
In case of replacing the skid control ECU, perform the zero point calibration of the steering angle,
master cylinder pressure, yawrate and deceleration sensors (See page DI±897).

BR0A4±07
± BRAKEFRONT SPEED SENSOR
BR±57
3224 Author: Date:
2005 SEQUOIA (RM1146U)
INSTALLATION
Installation is in the reverse order of removal (See page BR±56).
HINT:
After installation, check speed sensor signal (See page DI±899).

BR0A7±07
BR±60
± BRAKEREAR SPEED SENSOR
3227 Author: Date:
2005 SEQUOIA (RM1146U)
INSTALLATION
Installation is in the reverse order of removal (See page BR±59).
HINT:
After installation, check speed sensor signal (See page DI±899).

SR01S±06
± STEERINGSTEERING SYSTEM
SR±1
3228 Author: Date:
2005 SEQUOIA (RM1146U)
STEERING SYSTEM
PRECAUTION

Care must be taken to replace parts properly because they could affect the performance of the
steering system and result in a driving hazard.

The SEQUOIA is equipped with an SRS (Supplemental Restraint System) such as the driver air-
bag and front passenger airbag. Failure to carry out service operation in the correct sequence
could cause the SRS to unexpectedly deploy during servicing, possibly leading to a serious
accident. Before servicing (including removal or installation of parts, inspection or replace-
ment), be sure to read the notices precautionary in the RS section.

When disconnecting the battery terminal, initialize the following system after the terminal is re-
connected.
System NameSee Page
Back Door Power Window Control SystemBE±77

When replacing the steering angle sensor, drive the vehicle straight ahead at a speed of 6.5 mph
(10.5 km/h) or more. Accordingly, zero point calibration of the steering angle sensor is per-
formed.

After performing ºFront wheel alignment adjustmentº, clearing and reading the yaw rate & de-
celeration sensor zero point calibration data is necessary (See page DI±897).

SR01T±07
SR±2
± STEERINGTROUBLESHOOTING
3229 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 the order shown. If necessary, repair or replace these parts.
SymptomSuspect AreaSee page
Hard steering
1. Tires (Improperly inflated)
2. Power steering fluid level (Low)
3. Drive belt (Loose)
4. Front wheel alignment (Incorrect)
5. Steering system joints (Worn)
6. Suspension arm ball joints (Worn)
7. Steering column (Binding)
8. Power steering vane pump
9. Power steering gearSA±3
SR±5
SR±3
SA±4
±
SA±86
±
SR±26
SR±37
Poor return
1. Tires (Improperly inflated)
2. Front wheel alignment (Incorrect)
3. Steering column (Binding)
4. Power steering gearSA±3
SA±4
±
SR±37
Excessive play
1. Steering system joints (Worn)
2. Suspension arm ball joints (Worn)
3. Intermediate shaft, Sliding yoke (Worn)
4. Front wheel bearing (Worn)
5. Power steering gear±
SA±86
±
SA±21
SR±37
Abnormal noise
1. Power steering fluid level (Low)
2. Steering system joints (Worn)
3. Power steering vane pump
4. Power steering gearSR±5
±
SR±26
SR±37

SR01V±10
R07281
Normal Abnormal SR±4
± STEERINGPOWER STEERING FLUID
3231 Author: Date:
2005 SEQUOIA (RM1146U)
POWER STEERING FLUID
BLEEDING
1. CHECK FLUID LEVEL (See page SR±5)
2. JACK UP FRONT OF VEHICLE AND SUPPORT IT
WITH STANDS
3. TURN STEERING WHEEL
With the engine stopped, turn the wheel slowly from lock to lock
several times.
4. LOWER VEHICLE
5. START ENGINE
Run the engine at idle for a few minutes.
6. TURN STEERING WHEEL
(a) With the engine idling, turn the wheel left or right to the full
lock position and keep it there for 2 to 3 seconds, then turn
the wheel to the opposite full lock position and keep it
there for 2 to 3 seconds.
(b) Repeat (a) several times.
7. STOP ENGINE
8. CHECK FOR FOAMING OR EMULSIFICATION
If the system has to be bled twice specifically because of foam-
ing or emulsification, check for fluid leaks in the system.
9. CHECK FLUID LEVEL (See page SR±5)

R00427
HOT
COLD
SR01W±10
R07281
Normal Abnormal
R10552
5 mm (0.20 in.)
or less
Engine Idling Engine Stopped
± STEERINGPOWER STEERING FLUID
SR±5
3232 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION
1. CHECK FLUID LEVEL
(a) Keep the vehicle level.
(b) With the engine stopped, check the fluid level in the reser-
voir.
If necessary, add fluid.
Fluid: ATF DEXRON® II or III
HINT:
When the fluid is hot, check that the fluid level is within the HOT
range on the reservoir/reservoir cap dipstick.
If the fluid is cold, check that it is within the COLD range.
(c) Start the engine and run at idle.
(d) Turn the steering wheel from the lock position to the other
side of lock position several times to boost fluid tempera-
ture.
Fluid temperature: 80°C (176°F)
(e) Check for foaming or emulsification.
If there is foaming or emulsification, bleed the air from the power
steering system (See page SR±4).
(f) With the engine idling, measure the fluid level in the reser-
voir.
(g) Stop the engine.
(h) Wait a few minutes and remeasure the fluid level in the
reservoir.
Maximum fluid level rise: 5 mm (0.20 in.)
If a problem is found, bleed the air from the power steering sys-
tem (See page SR±4).
(i) Check the fluid level.