2001 TOYOTA SEQUOIA Service Repair Manual

clock setting navigation system engine oil service indicator remote start keyless entry

Page 1121 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual ± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
DI±919
111 3 Author: Date:
2005 SEQUOIA (RM1146U)
2. ACTIVE TEST
HINT:
Performing the ACTIVE TEST using the hand±held tester allows the relay,

± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
DI±919
111 3 Author: Date:
2005 SEQUOIA (RM1146U)
2. ACTIVE TEST
HINT:
Performing the ACTIVE TEST using the hand±held tester allows the relay, actuator, etc. to operate without
removing any parts. Performing the ACTIVE TEST as the first step of troubleshooting is one of the methods
to shorten labor time.
It is possible to display the DATA LIST during the ACTIVE TEST.
(a) Connect the hand±held tester to the DLC3.
(b) Turn the ignition switch to the ON position.
(c) According to the display on the tester, perform the ACTIVE TEST.
HINT:
The Ignition switch must be turned to the ON position to proceed to the ACTIVE TEST using the hand±held
tester.
ItemVehicle Condition / Test DetailsDiagnostic Note
SFRRTurns ABS solenoid (SFRR) ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SFRHTurns ABS solenoid (SFRH) ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SFLRTurns ABS solenoid (SFLR) ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SFLHTurns ABS solenoid (SFLH) ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SRRRTurns ABS solenoid (SRRR) ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SRRHTurns ABS solenoid (SRRH) ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SRLRTurns ABS solenoid (SRLR) ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SRLHTurns ABS solenoid (SRLH) ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SRMR (SMCR, STR)Turns TRAC solenoid (SRMR) ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SRMF (SMCF, SA3)Turns TRAC solenoid (SRMF) ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SRCR (SA2)Turns TRAC solenoid (SRCR) ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SRCF (SA1)Turns TRAC solenoid (SRCF) ON / OFF
Operation of solenoid
(clicking sound) can be
heard
ABS MOT RELAYTurns ABS motor relay ON / OFFOperation of motor (click-
ing sound) can be heard
ABS WARN LIGHTTurns ABS warning light ON / OFFObserve combination me-
ter

Page 1122 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DI±920
± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
111 4 Author: Date:
2005 SEQUOIA (RM1146U)
VSC WARN LIGHTTurns VSC warning light ON / OFFObserve combination me-
ter
VSC / TRC OFF INDTu

Page 1123 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DI93C±06
± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
DI±921
111 5 Author: Date:
2005 SEQUOIA (RM1146U)
DIAGNOSTIC TROUBLE CODE CHART
NOTICE:
When removing parts, turn the ignition switc

DI93C±06
± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
DI±921
111 5 Author: Date:
2005 SEQUOIA (RM1146U)
DIAGNOSTIC TROUBLE CODE CHART
NOTICE:
When removing parts, turn the ignition switch OFF.
When replacing the master cylinder, yaw rate and deceleration sensors and/or the ECU, make
sure to perform master cylinder, yaw rate and deceleration sensors' zero point calibration (See
page DI±897).
HINT:
Using SST 09843±18040, connect terminals Tc and CG.
If no abnormality is found when inspecting parts, inspect the ECU.
If a trouble code is displayed during the DTC check, check the circuit listed for that code. For details
of each code, turn to the page referred to under the ºSee pageº for respective ºDTC No.º in the DTC
chart.
DTC chart of ABS system:
DTC No.
(See Page)Detection ItemTrouble Area
C0200/31*1
(DI±925)Right front wheel speed sensor signal malfunction
C0205/32*1
(DI±925)Left front wheel speed sensor signal malfunctionRight front, left front, right rear and left rear speed sensor
Each speed sensor circuit
C0210/33*1
(DI±925)Right rear wheel speed sensor signal malfunction
Each s eed sensor circuit
Speed sensor rotor
Skid control ECU
C0215/34*1
(DI±925)Left rear wheel speed sensor signal malfunction
C0226/21
(DI±932)Malfunction in ABS & VSC solenoid valvesABS & VSC actuator
ABS & VSC solenoid circuit
C0278/11
(DI±934)Open or short circuit in ABS & VSC relay circuit
ABS & VSC solenoid relay
ABS & VSC solenoid relay circuit
ABS & VSC motor relay
ABS & VSC motor relay circuit
C1241/41
(DI±957)Low battery positive voltage or abnormally high battery positive
voltage
Battery
Charging system
Power source circuit (+BM, +BS)
Skid control ECU
C1244/44
(DI±951)Open or short circuit in deceleration sensor circuitYaw rate (deceleration) sensor
Yaw rate (deceleration) sensor circuit
C1247/47
(DI±960)Malfunction in delta S sensor
Delta S sensor
Delta S sensor circuit
Skid control ECU
Brake booster
C1249/49
(DI±963)Open circuit in stop light switch circuit
Stop light switch
Stop light switch circuit
Skid control ECU
C1251/51*1
(DI±966)
Pump motor is locked
Open circuit in pump motor circuitABS & VSC actuator
C1337/37
(DI±975)Some tires are different in size from the other tiresTire size
Always ON
(DI±1016)Malfunction in skid control ECU
Battery
Charging system
Power source circuit
ABS warning light circuit
Skid control ECU

Page 1124 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DI±922
± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
111 6 Author: Date:
2005 SEQUOIA (RM1146U)
*1: As long as the following operations are not performed, the ABS warning light will not go

DI±922
± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
111 6 Author: Date:
2005 SEQUOIA (RM1146U)
*1: As long as the following operations are not performed, the ABS warning light will not go OFF only by re-
pairing the trouble area.
(1) Drive the vehicle at 12 mph (20 km/h) for 30 seconds or more and check that the ABS warning light goes
off.
(2) Clear the DTC (See page DI±911).
HINT:
There is a possibility that the hand±held tester cannot be used when the ABS warning light is always ON.
DTC chart of VSC system:
DTC No.
(See Page)Detection ItemTrouble Area
C1201/51
(DI±936)Engine control system malfunctionEngine control system
C1202/52
(DI±937)Brake fluid level warning switch circuit
Brake fluid level
Brake fluid level warning switch
Brake fluid level warning switch circuit
Skid control ECU
CAN1 communication system
Translate ECU
C1203/53 *1
(DI±942)Malfunction in CAN1 communication
Skid control ECU
CAN1 communication system
ECM
Translate ECU
C1207/37
(DI±522)Reverse gear signal failureECT
C1223/43
(DI±945)Malfunction in ABS control systemABS control system
C1231/31
(DI±946)Malfunction in steering angle sensor
Steering angle sensor
Steering angle sensor communication circuit
Skid control ECU
Translate ECU
CAN communication system
C1232/32
(DI±951)Malfunction in deceleration sensorYaw rate (deceleration) sensor
Yaw rate (deceleration) sensor circuit
C1234/34
(DI±954)Malfunction in yaw rate sensorYaw rate (deceleration) sensor
Yaw rate (deceleration) sensor circuit
C1310/11
(DI±969)Open or short circuit in active brake booster solenoid circuitBrake booster
Active brake booster solenoid circuit
C1311/12
(DI±971)Open or short circuit in brake inhibit relay circuitBrake inhibit relay
Brake inhibit relay circuit
1335/35
(DI±946)Malfunction in steering angle sensor communication circuit
Steering angle sensor
Steering angle sensor communication circuit
Skid control ECU
Translate ECU
CAN1 communication system
C1340/47*2
(DI±977)Center diff. lock circuit malfunction
Center diff. lock position switch
Center diff. lock position switch circuit
Center diff. lock indicator light circuit
Translate ECU
C1360/61
(DI±983)Malfunction in master cylinder pressure sensorMaster cylinder pressure sensor
Master cylinder pressure sensor circuit

Page 1125 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual ± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
DI±923
111 7 Author: Date:
2005 SEQUOIA (RM1146U)C1361/62
(DI±986)
Abnormal battery voltage of VSC sensor
Battery
Charging system
Power sou

± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
DI±923
111 7 Author: Date:
2005 SEQUOIA (RM1146U)C1361/62
(DI±986)
Abnormal battery voltage of VSC sensor
Battery
Charging system
Power source circuit
Yaw rate (deceleration) sensor
Skid control ECU
Master cylinder pressure sensor
C1362/36
(DI±990)Malfunction in sensor offset value (VSC sensor system)Skid control ECU
(Perform zero point calibration)
C1363/63
(DI±991)Malfunction in booster pedal force switchBooster pedal force switch (Active brake booster)
Booster pedal force switch (Active brake booster) circuit
U0100/65
(DI±1075)Malfunction in vehicle CAN communication systemVehicle CAN communication system
HINT:
There is a possibility that the hand±held tester cannot be used when the VSC TRAC warning light is always
ON.
*
1: Check DTC chart C1203/53 first, then troubleshoot according to the DTC chart of translate ECU if neces-
sary.
*
2:
4WD
DTC chart of translate ECU (When DTC ºC1201/51, C1202/52, C1203/53 or U0100/65º of VSC system
is output):
DTC No.
(See Page)Detection ItemTrouble Area
Normal code*
(DI±1013)Malfunction in ECM control system or suspension control ECU
ECM circuit
ECM
Brake fluid level
Brake fluid level warning switch circuit
Steering angle sensor
Translate ECU
Skid control ECU
Vehicle CAN
VSC+, VSC± circuit (CAN1 communication system)
51
(DI±995)Malfunction in ECM control systemECM
53
(DI±998)Malfunction in CAN1 communication
VSC+, VSC± circuit (CAN1 communication system)
Skid control ECU
Translate ECU
58
(DI±1002)Malfunction of brake fluid level switch
Brake fluid level warning switch circuit
Brake fluid level warning switch
Brake fluid reservoir level
Translate ECU
65
(DI±1005)Malfunction 1 of vehicle CAN
ENG+, ENG± circuit (CAN communication system)
ECM
Translate ECU
Suspension control ECU
94
(DI±1009)Malfunction 2 of vehicle CAN
ENG+, ENG± circuit (CAN communication system)
ECM
Translate ECU
Suspension control ECU
Non±code
(DI±1015)Malfunction in translate ECU
Brake warning light circuit
Tc terminal circuit
Translate ECU
*: Translate ECU is normal.

Page 1126 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DI±924
± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
111 8 Author: Date:
2005 SEQUOIA (RM1146U)
If the brake warning light turns on, check that the parking brake pedal is released, the brak

Page 1127 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DI93G±05
BR3583
BR3582F00010
RotorSpeed Sensor
Magnet
To ECU
+V
±VHigh Speed
Low Speed
CoilNS
± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
DI±925
111 9 Author: Date:
2005 SEQUOIA (RM1146

Page 1128 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual F19767
ABS & VSC Actuator
(Skid Control ECU)
A7
ABS Speed Sensor
Front RH
33 46
34 2
1
12FL±FR±
RR+FL+
RR±RL+
RL± 2
1FR+ S1
S1
S1
S1
S1
S1
S1
S142
43
36 37
1 2 A32
ABS Speed Sensor
Rear LH
A33
ABS

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