brake sensor TOYOTA SEQUOIA 2001 Service Repair Manual

IN0253
WRONG CORRECT
IN0252
WRONG CORRECT IN±6
± INTRODUCTIONREPAIR INSTRUCTIONS
6 Author: Date:
2005 SEQUOIA (RM1146U)
(k) Care must be taken when jacking up and supporting the
vehicle. Be sure to lift and support the vehicle at the prop-
er locations (See page IN±8).
Cancel the parking brake on the level place and
shift the transmission in N position.
When jacking up the front wheels of the vehicle, first
place stoppers behind the rear wheels.
When jacking up the rear wheels of the vehicle, first
place stoppers before the front wheels.
When either the front or rear wheels only should be
jacked up, set rigid racks and place stoppers in front
and behind of the other wheels on the ground.
After the vehicle is jacked up, be sure to support it
on rigid racks. It is extremely dangerous to do any
work on a vehicle raised on a jack, even for a job that
can be finished quickly.
(l) Observe the following precautions to avoid damage to the
following parts:
(1) Do not open the cover or case of the ECU unless
absolutely necessary. (If the IC terminals are
touched, the IC may be destroyed by static electric-
ity.)
(2) To disconnect vacuum hoses, pull off the end, not
the middle of the hose.
(3) To pull apart electrical connectors, pull on the con-
nector itself, not the wires.
(4) Be careful not to drop electrical components, such
as sensors or relays. If they are dropped on a hard
floor, they should be replaced and not reused.
(5) When steam cleaning an engine, protect the elec-
tronic components, air filter and emission±related
components from water.
(6) Never use an impact wrench to remove or install
temperature switches or temperature sensors.

IN04Q±33
IN±40
± INTRODUCTIONTERMS
40 Author: Date:
2005 SEQUOIA (RM1146U)
TERMS
ABBREVIATIONS USED IN THIS MANUAL
AbbreviationsMeaning
ABSAnti±Lock Brake System
A/CAir Conditioner
ACAlternating Current
ACCAccessory
ACISAcoustic Control Induction System
ACMActive Control Engine Mount
ACSDAutomatic Cold Start Device
A.D.D.Automatic Disconnecting Differential
A/FAir±Fuel Ratio
AHCActive Height Control Suspension
ALRAutomatic Locking Retractor
ALTAlternator
AMPAmplifier
ANTAntenna
APPROX.Approximately
ASSYAssembly
A/T, ATMAutomatic Transmission (Transaxle)
AT FAutomatic Transmission Fluid
AUTOAutomatic
AUXAuxiliary
AV GAverage
AV SAdaptive Variable Suspension
B+Battery Voltage
BABrake Assist
BACSBoost Altitude Compensation System
BATBattery
BDCBottom Dead Center
B/LBi±Level
B/SBore±Stroke Ratio
BTDCBefore Top Dead Center
BVSVBimetallic Vacuum Switching Valve
CBCircuit Breaker
CCoCatalytic Converter For Oxidation
CCVCanister Closed Valve
CDCompact Disc
CFCornering Force
CGCenter Of Gravity
CHChannel
CKDComplete Knock Down
COMB.Combination
CPECoupe
CPSCombustion Pressure Sensor
CPUCentral Processing Unit
CRSChild Restraint System
CTRCenter
C/VCheck Valve
CVControl Valve
CWCurb Weight

± INTRODUCTIONTERMS
IN±43
43 Author: Date:
2005 SEQUOIA (RM1146U) OEM
Original Equipment Manufacturing
OHCOverhead Camshaft
OHVOverhead Valve
OPTOption
ORVROn±board Refilling Vapor Recovery
O/SOversize
P & BVProportioning And Bypass Valve
PCSPower Control System
PCVPositive Crankcase Ventilation
PKBParking Brake
PPSProgressive Power Steering
PSPower Steering
PTOPower Take±Off
P/WPower Window
R & PRack And Pinion
RAMRandom Access Memory
R/BRelay Block
RBSRecirculating Ball Type Steering
R/FReinforcement
RFSRigid Front Suspension
RHRight±Hand
RHDRight±Hand Drive
RLYRelay
ROMRead Only Memory
RRRear
RRSRigid Front Suspension
RWDRear±Wheel Drive
SDNSedan
SENSensor
SICSStarting Injection Control System
SOCState Of Charge
SOHCSingle Overhead Camshaft
SPECSpecification
SPISingle Point Injection
SRSSupplemental Restraint System
SSMSpecial Service Materials
SSTSpecial Service Tools
STDStandard
STJCold±Start Fuel Injection
SWSwitch
SYSSystem
T/ATransaxle
TACHTachometer
TBIThrottle Body Electronic Fuel Injection
TCTurbocharger
TCCSTOYOTA Computer±Controlled System
TCVTiming Control Valve
TDCTop Dead Center
TEMP.Temperature
TEMSTOYOTA Electronic Modulated Suspension
TFTTOYOTA Free±Tronic
TISTotal Information System For Vehicle Development

SS1KF±04
± SERVICE SPECIFICATIONSSUSPENSION AND AXLE
SS±39
181 Author: Date:
2005 SEQUOIA (RM1146U)
TORQUE SPECIFICATION
Part tightenedN´mkgf´cmft´lbf
TIRE PRESSURE MONITOR RECEIVER
Tire pressure monitor receiver set bolt7.57666 in.´lbf
TIRE PRESSURE MONITOR VALVE
Tire pressure monitor valve set nut4.04135 in.´lbf
FRONT AXLE
Hub nut11 01,15083
Tie rod end lock nut5556041
Steering knuckle x Brake caliper8082059
Steering knuckle x Dust cover1231,25090
Drive shaft lock nut1818513
Upper suspension arm x Upper ball joint2352,400173
Brake line clamp x Steering knuckle1051,10077
ABS speed sensor x Steering knuckle2828521
ABS speed sensor wire harness clamp x Steering knuckle8.08271 in.´lbf
ABS speed sensor wire harness clamp x Upper suspension arm8.08271 in.´lbf
FRONT DIFFERENTIAL
Drive pinion x companion flangeSee page SA±43
Differential front mounting cushion x Chassis frame1371,400101
Differential rear mounting cushion x Chassis frame8789064
Differential front mounting cushion x Differential1571,60011 6
Differential rear mounting cushion x Differential1081,10080
Ring gear x Differential case9798571
Differential carrier x Differential tube7880058
Differential carrier x Side bearing retainer6970051
Differential x Front propeller shaft7475054
A.D.D. clutch case x Differential7880058
A.D.D. clutch case x Differential tube7880058
A.D.D. actuator x A.D.D. clutch case2121015
Tube with wire harness assembly clamp x Differential carrier131309
Drain plug6566048
Filler plug3940029
FRONT SUSPENSION
Suspension support x Chassis frame6465047
Piston rod x Suspension support2525018
Lower suspension arm x Shock absorber1351,400100
Upper suspension arm x Chassis frame981,00072
Lower suspension arm x Chassis frame1301,32596
Lower suspension arm x Lower ball joint1591,62111 7
Power steering gear Left side nut
Center bolt
Right side bolt and nut130
165
1651,350
1,700
1,70096
122
122
Tie rod end x Lower ball joint9193067
No. 1, No. 2 spring bumper31 (23)315 (235)23 (17)
Lower suspension arm x Stabilizer bar link6970051

SS±40
± SERVICE SPECIFICATIONSSUSPENSION AND AXLE
182 Author: Date:
2005 SEQUOIA (RM1146U) Stabilizer bar x Stabilizer bar link
1919014
Stabilizer bar bracket x Chassis frame3737727
( ) For use with SST
Part tightenedN´mkgf´cmft´lbf
REAR AXLE
Hub nut11 01,12283
Backing plate x Brake caliper1051,07077
Parking brake cable x Backing plate8.08271 in.´lbf
Axle housing x Backing plate1221,24490
Brake line union nut15.515811
ABS speed sensor x Axle housing8.08271 in.´lbf
REAR DIFFERENTIAL
Differential x Propeller shaft7475056
Drive pinion x Companion flangeSee page SA±113
Companion flange x Stud bolt101027.4
Differential carrier x Axle housing7374054
Differential carrier x Bearing cap11 31,15083
Differential case x Ring gear1251,27092
Drain plug4950036
Filler plug4950036
REAR SUSPENSION
Shock absorber x Chassis frame5859143
Shock absorber x Axle housing8788764
REAR LATERAL CONTROL ROD
Lateral control rod x Chassis frame1401,428103
Lateral control rod x Axle housing1301,32696
REAR UPPER AND LOWER CONTROL ARM
Upper control arm x Chassis frame1401,428103
Upper control arm x Axle housing1401,428103
Upper control arm x Brake line bracket2828621
Lower control arm x Chassis frame1301,32696
Lower control arm x Axle housing1301,32696
Lower control arm x Parking brake cable bracket2626519
REAR STABILIZER BAR
Bracket x Axle housing3737727
Stabilizer bar link x Chassis frame6970451
Stabilizer bar x Stabilizer bar link6970451
HEIGHT CONTROL COMPRESSOR AND DRYER
Height control compressor x Bracket2930021
Height control filter x Height control compressor6.46557 in.´lbf
Bracket x Body2930021
HEIGHT CONTROL VALVE
Height control set bolt2930021

SS085±04
± SERVICE SPECIFICATIONSBRAKE
SS±43
185 Author: Date:
2005 SEQUOIA (RM1146U)
TORQUE SPECIFICATION
Part tightenedN´mkgf´cmft´lbf
Bleeder plug1111 08
Master cylinder x Reservoir1.51513 in.´lbf
Master cylinder x Brake booster2525018
Master cylinder x Master cylinder pressure sensor2525018
Brake booster clevis lock nut2525018
Brake booster x Brake booster bracket2525018
Brake booster x Pedal bracket131309
Brake pedal x Pedal bracket3435025
Stop light switch lock nut2526019
Parking brake pedal assembly x Pedal bracket3232023
Parking brake pedal assembly x Body131309
Brake line union nut 10 mm1515511
12 mm19.519514
Front disc brake caliper x Steering knuckle1231,25090
Rear disc brake caliper installation bolt8890065
Rear disc brake caliper x Flexible hose3132023
Rear disc brake torque plate x Backing plate1051,07077
Actuator bracket x Body1111 28
Actuator bracket x Actuator assembly9.59784 in.´lbf
Actuator x Skid control ECU1.81816 in.´lbf
Speed sensor installation bolt8.08271 in.´lbf
Front speed sensor harness x Steering knuckle8.08271 in.´lbf
Front speed sensor harness x Upper arm8.08271 in.´lbf
Front speed sensor harness x Coil support8.08271 in.´lbf

A23544
40 mph (64 km/h)
Idling
IG SW OFF ECT:
75C (167F) or higher
Vehicle Speed
Warming up(5)(6)
10 minutes
or more(7)
10 seconds
or more4 seconds
or moreTime At Least 3 times
(8) (9)
(10) Accelerator Pedal
DepressedAccelerator Pedal
Released (Fuel±cut)
± DIAGNOSTICSENGINE
DI±31
225 Author: Date:
2005 SEQUOIA (RM1146U)
5. AIR±FUEL RATIO (A/F) AND OXYGEN SENSOR (HO2) MONITOR (ACTIVE AIR±FUEL RATIO
CONTROL TYPE)
(a) Preconditions
The monitor will not run unless:

2 minutes or more have elapsed since the engine was started.

The Engine Coolant Temperature (ECT) is 75C (167F) or higher.

Air±fuel ratio feedback control is performed.

Fuel±cut control is performed for 8 seconds or more.
(b) Drive Pattern
(1) Connect the hand±held tester to DLC3.
(2) Turn the ignition switch to ON.
(3) Clear DTCs (see page DI±43).
(4) Start the engine, and warm it up until the ECT reaches 75C (167F) or higher.
(5) Drive the vehicle at 40 mph (64 km/h) or more for at least 10 minutes.
(6) Change the transmission to 2nd gear.
(7) Accelerate the vehicle to 30 mph (48 km/h) or more by depressing the accelerator pedal for at
least 10 seconds.
(8) Soon after performing step (8) above, release the accelerator pedal for at least 4 seconds without
depressing the brake pedal, in order to execute fuel±cut control.
(9) Stop the vehicle and allow the engine to idle for 10 seconds or more.
(10) Allow the vehicle to decelerate until the vehicle speed declines to less than 6 mph (10 km/h).
(11) Repeat steps from (8) through (10) above at least 3 times in one driving cycle.
(c) Monitor Status
(1) Check the Readiness Monitor status displayed on the tester.
(2) If the status does not switch to COMPL (complete), make sure that the preconditions have been
met, and then perform steps from (5) through (11) in Drive Pattern above.

A2364720 msec./DIV 20 V/DIV
Ground
DI±36
± DIAGNOSTICSENGINE
230 Author: Date:
2005 SEQUOIA (RM1146U) OX2B (E7±33) ± E2 (E8±28)
R ± G±WIdlingPulse generation
(See waveform 10)
STP (E4 15) E1 (E6 1)GY BRBrake pedal is depressed7.5 to 14 VSTP (E4±15) ± E1 (E6±1)G±Y ± BRBrake pedal is releasedBelow 1.5 V
ST1 (E4 16) E1 (E6 1)LB BRBrake pedal is depressedBelow 1.5 VST1± (E4±16) ± E1 (E6±1)L±B ± BRBrake pedal is released7.5 to 14 V
STA (E6±11) ± E1 (E6±1)B±R ± BRShift lever position P or N, Ignition switch START6.0 V or more
STSW (E6±12) ± E1 (E6±1)B ± BRShift lever position P or N, ignition switch START6.0 V or more
STAR/NSW (E7 8) E1 (E6 1)BBRIG switch ON, Other shift position in P, N9 to 14 VSTAR/NSW (E7±8) ± E1 (E6±1)B ± BRIG switch ON, Shift position in P, N0 to 3.0 V
W (E5 30) E1 (E6 1)VW BRIdling9 to 14 VW (E5±30) ± E1 (E6±1)V±W ± BRIG switch ONBelow 3.0 V
TACH (E5±1) ± E1 (E6±1)Y±G ± BRIdlingPulse generation
(See waveform 11)
ACIS (E8±33) ± E1 (E6±1)B±L ± BRIG switch ON9 to 14 V
VPMP (E4±5) ± E1 (E6±1)P±L ± BRIgnition switch ON9 V to 14 V
MPMP (E4±6) ± E1 (E6±1)V±G ± BR
Vacuum pump OFF

Vacuum pump ON0 V to 3 V
9 V to 14 V
PPMP (E4±22) ± E1 (E6±1)R±G ± BRIgnition switch ON3 V to 3.6 V
AIV1 (E8±27) ± E1 (E6±1)L±B ± BRIgnition switch ON9 to 14 V
AIV2 (E8±26) ± E1 (E6±1)P±L ± BRIgnition switch ON9 to 14 V
AIRV (E4±4) ± E1 (E6±1)R±W ± BRIgnition switch ON9 to 14 V
AIRP (E4±25) ± E1 (E6±1)G±W ± BRIgnition switch ON9 to 14 V
AIP (E8±32) ± E1 (E6±1)B±Y ± BRIgnition switch ON3 V to 3.6 V
*1: The ECM terminal voltage is constant regardless of the output voltage from the sensor.
WAVEFORM 1
Fuel injector
ECM Terminal NamesBetween #10 (to 40) and E01
Tester Ranges20 V/DIV, 20 msec./DIV
ConditionsIdling
HINT:
The wavelength becomes shorter as the engine rpm increases.

DI±66
± DIAGNOSTICSENGINE
260 Author: Date:
2005 SEQUOIA (RM1146U)P043E
(DI±445)
Evaporate Emission System
Reference Orifice Clog Up
Pump module
P043F
(DI±445)Evaporate Emission System
Reference Orifice High Flow
Pump module
P0441
(DI±257)Evaporative Emission Control
System Incorrect Purge Flow

Purge valve

Purge valve circuit (between purge valve and ECM)

Leakage from EVAP line (between purge valve and intake
manifold)

EVAP line (between purge valve and canister) clogged

ECM

P0450
(DI±264)Evaporative Emission Control
System Pressure Sensor/Switch
[Fuel Tank Pressure Sensor]

Pump module (including pressure sensor)
P0451
(DI±264)Evaporative Emission Control
System Pressure Sensor/Switch
Range/Performance

Pump module (including pressure sensor)
P0452
(DI±264)Evaporative Emission Control
System Pressure Sensor/Switch
Low Input
Pump module (including pressure sensor)

Connector/Wire harness (between pump module and ECM)

ECM

P0453
(DI±264)Evaporative Emission Control
System Pressure Sensor/Switch
High Input
Pump module (include pressure sensor)

Connector/Wire harness (between pump module and ECM)

ECM

P0455
(DI±273)Evaporative Emission Control
System Leak Detected (Gross
Leak)

Fuel tank cap (loose)

Leakage from EVAP line (between canister and fuel tank)

Leakage from EVAP line (between purge valve and canister)

Leakage from pump module

Leakage from fuel tank

Leakage from canister

P0456
(DI±273)Evaporative Emission Control
System Leak Detected (Very
Small Leak)

Same as DTC No. P0445
P0500
(DI±278)Vehicle Speed Sensor ºAº

Combination meter

Open or short in vehicle speed sensor circuit

Vehicle speed sensor

ECM

P0503
(DI±278)Vehicle Speed Sensor ºAº Inter-
mittent/Erratic/High

Combination meter

Open or short in vehicle speed sensor circuit

Vehicle speed sensor

ECM
±
P0504
(DI±283)Brake Switch ºAº/ºBº Correlation

Short in stop lamp switch signal circuit

STOP fuse

Stop lamp switch

ECM
±
P0505
(DI±288)Idle Air Control System

Air induction system

Electric throttle control system

PCV hose connection

P0560
(DI±292)System Voltage

Back±up power source circuit

EFI No. 1 fuse

ECM

P0604
(DI±296)Internal Control Module Random
Access Memory (RAM) Error
ECM
P0606
(DI±296)ECM/PCM Processor
ECM
P0607
(DI±296)Control Module Performance
ECM

± DIAGNOSTICSENGINE
DI±67
261 Author: Date:
2005 SEQUOIA (RM1146U)P0617
(DI±298)
Starter Relay Circuit High

Park/neutral position switch

Starter relay circuit

Ignition switch

ECM

P0630
(DI±302)VIN not Programmed or Mis-
match±ECM/PCM
ECM
P0657
(DI±296)Actuator Supply Voltage Circuit/
Open
ECM
P0705
(DI±576)Transmission Range Sensor Cir-
cuit Malfunction (PRNDL Input)
Electronic Controlled Automatic Transaxle (ECT)
P0710
(DI±582)Transmission Fluid Temperature
Sensor ºAº Circuit
Electronic control automatic transmission (ECT)
P0711
(DI±588)Transmission Fluid Temperature
Sensor ºAº Performance
Electronic control automatic transmission (ECT)
P0712
(DI±582)Transmission Fluid Temperature
Sensor ºAº Circuit Low Input
Electronic control automatic transmission (ECT)
P0713
(DI±582)Transmission Fluid Temperature
Sensor ºAº Circuit High Input
Electronic control automatic transmission (ECT)
P0717
(DI±591)Input/Turbine Speed Sensor ºAº
Circuit No Signal
Electronic control automatic transmission (ECT)
P0722
(DI±596)Output Speed Sensor Circuit No
Signal
Electronic control automatic transmission (ECT)
P0724
(DI±600)Brake Switch ºBº Circuit High
Electronic control automatic transmission (ECT)
P0748
(DI±603)Pressure Control Solenoid ºAº
Electrical (Shift Solenoid Valve
SL1)

Electronic control automatic transmission (ECT)
P0751
(DI±608)Shift Solenoid ºAº Performance
(Shift Solenoid Valve S1)
Electronic control automatic transmission (ECT)
P0756
(DI±614)Shift Solenoid ºBº Performance
(Shift Solenoid Valve S2)
Electronic control automatic transmission (ECT)
P0771
(DI±620)Shift Solenoid ºEº Performance
(Shift Solenoid Valve SR)
Electronic control automatic transmission (ECT)
P0776
(DI±625)Pressure Control Solenoid ºBº
Performance (Shift Solenoid
Valve SL2)

Electronic control automatic transmission (ECT)
P0778
(DI±631)Pressure Control Solenoid ºBº
Electrical (Shift Solenoid Valve
SL2)

Electronic control automatic transmission (ECT)
P0781
(DI±636)1±2 Shift (1±2 Shift Valve)
Electronic control automatic transmission (ECT)
P0973
(DI±641)Shift Solenoid ºAº Control Circuit
Low (Shift solenoid Valve S1)
Electronic control automatic transmission (ECT)
P0974
(DI±641)Shift Solenoid ºAº Control Circuit
High (Shift solenoid Valve S1)
Electronic control automatic transmission (ECT)
P0976
(DI±646)Shift Solenoid ºBº Control Circuit
Low (Shift solenoid Valve S2)
Electronic control automatic transmission (ECT)
P0977
(DI±646)Shift Solenoid ºBº Control Circuit
High (Shift solenoid Valve S2)
Electronic control automatic transmission (ECT)
P0985
(DI±651)Shift Solenoid ºEº Control Circuit
Low (Shift Solenoid Valve SR)
Electronic control automatic transmission (ECT)