2001 TOYOTA SEQUOIA Service Repair Manual

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Page 1113 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DIDM2±01
F09750
CG TcDLC3
R01346
Normal System Code
0.25 sec.
0.25 sec. 2 sec.
ON
OFF
ON
OFF0.5 sec. 0.5 sec.
Codes 11 and 21
4 sec.1.5 sec.
2.5 sec.
Code 11 Code 21
F09750
CG TcDLC3
± DIAGNOSTICSAB

Page 1114 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual Trouble Code (Example Code 42, 44)
ON
OFF
0.5 sec.0.5 sec.
1.5 sec.2.5 sec.
4 sec.
Repeat
42
44
D05981
Hand±held
Tester
DLC3
DI±912
± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
1106 Author:

Page 1115 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual F09750
CG TcDLC3
BR3890
D05981
Hand±held
Tester
DLC3
± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
DI±913
1107 Author: Date:
2005 SEQUOIA (RM1146U)
USING SST (CHECK WIRE):
4. CLEAR DTC
(a

Page 1116 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DIDM3±01
DI±914
± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
1108 Author: Date:
2005 SEQUOIA (RM1146U)
FREEZE FRAME DATA
1. FREEZE FRAME DATA
HINT:
Whenever a DTC is detected or the ABS

DIDM3±01
DI±914
± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
1108 Author: Date:
2005 SEQUOIA (RM1146U)
FREEZE FRAME DATA
1. FREEZE FRAME DATA
HINT:
Whenever a DTC is detected or the ABS operates, the skid control ECU stores the current vehicle (sen-
sor) state as freeze frame data.
The skid control ECU stores the number of times (maximum: 31) the ignition switch has been turned
from off to the ON position since the last time the ABS was activated. However, if the vehicle was
stopped or at low speed (4.3 mph (7 km/h) or less), or if a DTC is detected, the skid control ECU will
not count the number since then.
Freeze frame data at the time the ABS operates:
The skid control ECU stores and updates data whenever the ABS system operates.
When the ECU stores data at the time a DTC is detected, the data stored when the ABS operated is
erased.
Freeze frame data at the time a DTC is detected:
When the skid control ECU stores data at the time a DTC is detected, no updates will be performed
until the data is cleared.
(a) Connect the hand±held tester to the DLC3.
(b) Turn the ignition switch to the ON position.
(c) From the display on the tester, select the ºFREEZE FRAME DATAº.
Hand±held Tester DisplayMeasurement ItemReference Value
VEHICLE SPDWheel speed sensor readingmin.: 0 km/h
max.: 326 km/h
STOP LIGHT SWStop light switch signalStop light switch ON: ON, OFF: OFF
# IG ONNumber of operations of ignition switch ON after
memorizing freeze frame data0 to 31
MAS CYL PRESSMaster cylinder pressure sensor readingBrake pedal released: 0.3 to 0.9 V
Brake pedal depressed: 0.8 to 4.5 V
MASS PRESS GRADEMaster cylinder pressure sensor change±30 to 255 MPa/s
SYSTEMSystem status
ABS activated: ABS
VSC/TRC activated: VSC/TRC
BA activated: BA
Fail safe mode activated: FAIL SF
No system activated: NO SYS
YAW R AT EYaw rate angle sensor reading±128 to 127
STEERING ANGSteering sensor readingLeft turn: Increase
Right turn: Drop
THROTTLETh ttl iti diRelease accelerator pedal: Approx. 0 deg.THROTTLEThrottle position sensor readingRelease accelerator edal: A rox. 0 deg.
Depress accelerator pedal: Approx. 125 deg.
G (RIGHT & LEFT)Right and left G±1.869 to 1.869
G (BACK & FORTH)Back and forth G±1.869 to 1.869
VSC / TRC OFF SWVSC OFF switch signalTRAC OFF SW ON: ON
OFF: OFF
SHIFT POSITIONShift lever position
FAIL
P, N
R
D
4
3
2
L
TROUBLE CODEFreeze DTCmin.: 0
max.: 255

Page 1117 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual ± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
DI±915
1109 Author: Date:
2005 SEQUOIA (RM1146U)# CODES
Number of trouble codesmin.: 0
max.: 255
PEDAL STROKEPedal stroke sensor readingmin.: 0

Page 1118 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DIDM4±01
DI±916
± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
111 0 Author: Date:
2005 SEQUOIA (RM1146U)
FAIL±SAFE CHART
1. FAIL SAFE OPERATION
If there is a problem with sensor signals o

Page 1119 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DIDM5±01
± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
DI±917
1111 Author: Date:
2005 SEQUOIA (RM1146U)
DATA LIST / ACTIVE TEST
1. DATA LIST
HINT:
With the hand±held tester connected to t

DIDM5±01
± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
DI±917
1111 Author: Date:
2005 SEQUOIA (RM1146U)
DATA LIST / ACTIVE TEST
1. DATA LIST
HINT:
With the hand±held tester connected to the DLC3 and the ignition switch in the ON position, the ABS, TRAC
and VSC data list can be displayed. Follow the prompts on the tester screen to access the DATA LIST.
ItemMeasurement Item /
Range (Display)Normal ConditionDiagnostic Note
ABS MOT RELAYABS motor relay / ON or
OFFON : Motor relay ON
OFF : Motor relay OFF±
SOL RELAYSolenoid relay / ON or
OFFON : Solenoid relay ON
OFF : Solenoid relay OFF±
VSC / TRC OFF SWTRAC control switch / ON
or OFF
ON : TRAC control switch
ON
OFF : TRAC control switch
OFF
±
AIR BLD SUPPORTAir bleed support / ON or
OFFON : Support ON
OFF : Support OFF±
STOP LIGHT SWStop lamp switch / ON or
OFF
ON : Brake pedal de-
pressed
OFF : Brake pedal re-
leased
±
PKB SWParking brake switch / ON
or OFFON : Parking brake applied
OFF : Parking brake re-
leased
±
ABS OPERT FRABS operation (FR) / BE-
FORE or OPERATE
BEFORE : No ABS opera-
tion (FR)
OPERATE : During ABS
operation (FR)
±
ABS OPERT FLABS operation (FL) / BE-
FORE or OPERATE
BEFORE : No ABS opera-
tion (FL)
OPERATE : During ABS
operation (FL)
±
ABS OPERT RRABS operation (RR) / BE-
FORE or OPERATE
BEFORE : No ABS opera-
tion (RR)
OPERATE : During ABS
operation (RR)
±
ABS OPERT RLABS operation (RL) / BE-
FORE or OPERATE
BEFORE : No ABS opera-
tion (RL)
OPERATE : During ABS
operation (RL)
±
WHEEL SPD FR
Wheel speed sensor (FR)
reading / min.: 0 km/h (0
MPH), max.: 326 km/h
(202 MPH)
Actual wheel speedSimilar speed as indicated
on speedometer
WHEEL SPD FL
Wheel speed sensor (FL)
reading / min.: 0 km/h (0
MPH), max.: 326 km/h
(202 MPH)
Actual wheel speedSimilar speed as indicated
on speedometer
WHEEL SPD RR
Wheel speed sensor (RR)
reading / min.: 0 km/h (0
MPH), max.: 326 km/h
(202 MPH)
Actual wheel speedSimilar speed as indicated
on speedometer
WHEEL SPD RL
Wheel speed sensor (RL)
reading / min.: 0 km/h (0
MPH), max.: 326 km/h
(202 MPH)
Actual wheel speedSimilar speed as indicated
on speedometer

Page 1120 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DI±918
± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
111 2 Author: Date:
2005 SEQUOIA (RM1146U)
DECELERAT SEN
Deceleration sensor 1
reading / min.: ±1.869 G,
max.: 1.869 GApproximately 0 �

DI±918
± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
111 2 Author: Date:
2005 SEQUOIA (RM1146U)
DECELERAT SEN
Deceleration sensor 1
reading / min.: ±1.869 G,
max.: 1.869 GApproximately 0 ± 0.13 G
at still conditionReading changes when ve-
hicle is bounced
DECELERAT SEN2
Deceleration sensor 2
reading / min.: ±1.869 G,
max.: 1.869 GApproximately 0 ± 0.13 G
at still conditionReading changes when ve-
hicle is bounced
IG VOLTAGE
ECU power supply voltage
/ TOO LOW / NORMAL /
TOO HIGHTOO LOW : 9.5 V or less
NORMAL : 9.5 to 14.0 V
TOO HIGH : 14.0 V or
more
±
SFRRABS solenoid (SFRR) / ON
or OFFON : Operated
OFF : Not operated±
SFRHABS solenoid (SFRH) / ON
or OFFON : Operated
OFF : Not operated±
SFLRABS solenoid (SFLR) / ON
or OFFON : Operated
OFF : Not operated±
SFLHABS solenoid (SFLH) / ON
or OFFON : Operated
OFF : Not operated±
SRRR (SRR)ABS solenoid (SRRR
(SRR)) / ON or OFFON : Operated
OFF : Not operated±
SRRH (SRH)ABS solenoid (SRRH
(SRH)) / ON or OFFON : Operated
OFF : Not operated±
SRLRABS solenoid (SRLR) / ON
or OFFON : Operated
OFF : Not operated±
SRLHABS solenoid (SRLH) / ON
or OFFON : Operated
OFF : Not operated±
SRMR (SMCR, STR)SRMR (SMCR, STR) / ON
or OFFON : Operated
OFF : Not operated±
SRMF (SMCF SA3)SRMF (SMCF, SA3) / ON
or OFFON : Operated
OFF : Not operated±
SRCR (SA2)SRCR (SA2) / ON or OFFON : Operated
OFF : Not operated±
SRCF (SA1)SRCF (SA1) / ON or OFFON : Operated
OFF : Not operated±
YAW RATE
Yaw rate sensor/
Min.: ±128 deg/s, Max.:
127 deg/sMin.: ±128 deg/s
Max.: 128 deg/s±
YAW ZERO VALUE
Memorized zero value/
Min.: ±128 deg/s, Max.:
127 deg/sMin.: ±128 deg/s
Max.: 128 deg/s±
STEERING ANG
Steering sensor/
Min.: ±1152 deg,
Max.: 1150.875 degLeft turn: Increase
Right turn: Decrease±
MAS CYL PRS 1
Master cylinder pressure
sensor 1 reading / min.: 0
V, max.: 5 VWhen brake pedal is re-
leased : 0.3 to 0.9 VReading increases when
brake pedal is depressed
MAS CYL PRS 2
Master cylinder pressure
sensor 2 reading / min.: 0
V, max.: 5 VWhen brake pedal is re-
leased: 0.3 to 0.9 VReading increases when
brake pedal is depressed
PEDAL STROKEPedal Stroke Sensor min.:
0, max.: 5.1Approximately 2.0 V with-
out the brake pedal de-
pressed
±

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