2001 TOYOTA SEQUOIA terminal TC

F16975
± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
DI±909
1103 Author: Date:
2005 SEQUOIA (RM1146U)
Translate ECU:
Symbols (Terminal No.)Wiring ColorTerminal DescriptionConditionSpecified Condition
IG1 (1) ± GND (40)B±R ± OTranslate ECU power
supplyIG SW ON10 to 14 V
PKB2 (4) ± GND (40)LG±R ± OPKB signal lineIG SW ON, PKB SW ONBelow 2.0 V
PKB2 (4) ± GND (40)LG±R ± OPKB signal lineIG SW ON, PKB SW OFF10 to 14 V
VSC+ (7) ± VSC± (11)L ± WCAN communication lineIG switch ONPulse generation
ENG+ (14) ± ENG± (16)R ± WECM communicationIG SW ONPulse generation
SS1+ (18) ± SS1± (19)O ± YSteering angle sensor lineIG SW ONPulse generation
TRIG (20) ± GND (40)W±L ± OSteering angle sensor sig-
nalIG SW ON4.5 to 5.5 V
LVL2 (24) ± GND (40)Y±L ± OBrake fluid level signalBrake fluid level SW ONBelow 1.5 V
CSW (26)* ± GND (40)L±W ± OCenter diff. lock SW sig-
nalIG SW ON, VSC OFF SW ONBelow 1.5 V
CSW (26)* ± GND (40)L±W ± OCenter diff. lock SW sig-
nalIG SW ON, VSC OFF SW OFF8 to 14 V
TS (27) ± GND (40)R±L ± OSensor check inputIG switch ON10 to 14 V
TC (28) ± GND (40)P±B ± ODiagnosis tester commu-
nication lineIG switch ON10 to 14 V
CD (29)* ± GND (40)BR±Y ± OCenter diff. lock lamp sig-
nalIG SW ON, center diff. lock indica-
tor ONBelow 1.5 V
CD (29)* ± GND (40)BR±Y ± OCenter diff. lock lamp sig-
nalIG SW ON, center diff. lock indica-
tor OFF8 to 14 V
EXI2 (31)* ± GND (40)Y±G ± OCenter diff. lock signalIG SW ON, center diff. lock SW ONBelow 1.5 V
EXI2 (31)* ± GND (40)Y±G ± OCenter diff. lock signalIG SW ON, center diff. lock SW
OFF8 to 14 V
IND (37) ± GND (40)W±R ± OSLIP indicator signalIG SW ON, SLIP indicator ONBelow 2.0 V
IND (37) ± GND (40)W±R ± OSLIP indicator signalIG SW ON, SLIP indicator OFF10 to 14 V
WT (38) ± GND (40)R±G ± OVSC OFF or TRAC OFF
warning light circuitIG SW ON, VSC OFF or TRAC
OFF warning light ONBelow 2.0 V
WT (38) ± GND (40)R±G ± OVSC OFF or TRAC OFF
warning light circuitIG SW ON, VSC OFF or TRAC
OFF warning light OFF10 to 14 V
BRL (39) ± GND (40)R±B ± OBRAKE warning light cir-
cuitIG SW ON, BRAKE warning light
ONBelow 2.0 V
BRL (39) ± GND (40)R±B ± OBRAKE warning light cir-
cuitIG SW ON, BRAKE warning light
OFF10 to 14 V
*: Only for 4WD

DIDM1±01
F13444
USA: CANADA:USA: CANADA:2WD: 4WD:
DI±910
± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
1104 Author: Date:
2005 SEQUOIA (RM1146U)
DIAGNOSIS SYSTEM
1. CHECK WARNING LIGHT
(a) Release the parking brake pedal.
(b) When the ignition switch is turned ON, check that the ABS
warning light, VSC TRAC warning light, VSC OFF (TRAC
OFF) indicator light, BRAKE warning light and SLIP indi-
cator light come on for approx. 3 seconds.
HINT:

When the parking brake is applied or the level of the brake
fluid is low, the BRAKE warning light comes on.

If the indicator check result is not normal, proceed to trou-
bleshooting for the ABS warning light circuit, VSC TRAC
warning light circuit, VSC OFF (TRAC OFF) indicator light
circuit, BRAKE warning light circuit or SLIP indicator light
circuit.
Trouble AreaSee page
ABS warning light circuitDI±1021 or
DI±1025
VSC TRAC warning light circuitDI±1027 or
DI±1031
VSC OFF (TRAC OFF) indicator light circuitDI±1048
BRAKE warning light circuitDI±1033 or
DI±1038
SLIP indicator light circuitDI±1041 or
DI±1045

The DTCs are simultaneously stored in the memory. The
DTCs can be read by connecting the SST between TC
and CG terminals of the DLC3 and observing the blinking
of the ABS and VSC warning lights, or by connecting a
hand±held tester.

This system has a sensor signal check function (TEST
MODE) (See page DI±899).
The DTC can be read by connecting the SST between ter-
minals TS and CG of the DLC3 and observing the blinking
of the ABS and VSC TRAC warning lights, or by connect-
ing a hand±held tester.

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
± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
DI±911
1105 Author: Date:
2005 SEQUOIA (RM1146U)
DTC CHECK / CLEAR
USING SST (CHECK WIRE):
1. CHECK DTC
(a) Using SST, connect terminals Tc and CG of the DLC3.
SST 09843±18040
(b) Turn the ignition switch to the ON position.
(c) Read the DTC from the ABS and VSC TRAC warning
lights on the combination meter.
HINT:

If no code appears, inspect the diagnostic circuit, ABS
warning light circuit or VSC TRAC warning light circuit.
Trouble AreaSee page
Tc terminal circuitDI±1055
ABS warning light circuitDI±1021 or
DI±1025
VSC TRAC warning light circuitDI±1027 or
DI±1031

As examples, the blinking patterns for normal system
code and codes 11 and 21 are shown on the left.
(1) Codes are explained in the code table on page
DI±921.
(2) After completing the check, disconnect terminals Tc
and CG of the DLC3, and turn off the display.
If 2 or more trouble codes are identified at the same time, the
DTCs will be displayed in ascending order.
2. CHECK TRANSLATE DTC
HINT:
Once the ignition switch is turned off, all DTCs in the translate
ECU are cleared.
(a) Release the parking brake pedal.
(b) Check the brake fluid level.
(c) Using SST, connect terminals Tc and CG of the DLC3.
SST 09843±18040
(d) Read the DTC of the BRAKE warning light.
NOTICE:
When reading DTCs, be sure to be seated in the driver's
seat and depressing the brake pedal.

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: Date:
2005 SEQUOIA (RM1146U)
HINT:

If no code appears, inspect the diagnostic circuit, and
BRAKE warning light circuit.
Trouble AreaSee page
Tc terminal circuitDI±1055
BRAKE warning light circuitDI±1033 or
DI±1038

When the parking brake is applied or the level of the brake
fluid is low, the BRAKE warning light comes on.

If all sensors are normal, a normal system code is output.
(A cycle of 0.25 sec. ON and 0.25 sec. OFF is repeated.)

If 2 or more trouble codes are identified at the same time,
the codes will be displayed in ascending order.
USING HAND±HELD TESTER:
3. CHECK DTC
(a) Connect the hand±held tester to the DLC3.
(b) Turn the ignition switch to the ON position.
(c) Read the DTC by following the prompts on the tester
screen.
HINT:
Refer to the hand±held tester operator's manual for further de-
tails.

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) Using SST, connect terminals Tc and CG of the DLC3.
SST 09843±18040
(b) Turn the ignition switch to the ON position.
(c) Clear the DTC stored in the ECU by depressing the brake
pedal 8 times or more within 5 seconds.
(d) Check that the warning light indicates the normal code.
(e) Remove the SST from the terminals of the DLC3.
SST 09843±18040
HINT:
Cancellation cannot be done by removing the battery cable or
ECU±IG fuse.
USING HAND±HELD TESTER:
5. CLEAR DTC
(a) Hook up the hand±held tester to the DLC3.
(b) Turn the ignition switch to the ON position.
(c) Operate the hand±held tester to erase the codes.
HINT:
(d) Please refer to the hand±held tester operator's manual
for further details.

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 malfunction
Right 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 valves
ABS & 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 circuit
Yaw 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 circuit
ABS & VSC actuator
C1337/37
(DI±975)Some tires are different in size from the other tires
Tire size
Always ON
(DI±1016)Malfunction in skid control ECU

Battery

Charging system

Power source circuit

ABS warning light circuit

Skid control ECU

± 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 switch
Booster pedal force switch (Active brake booster)

Booster pedal force switch (Active brake booster) circuit
U0100/65
(DI±1075)Malfunction in vehicle CAN communication system
Vehicle 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 system
ECM
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.

R14205
21
R14205
21
DI±928
± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
1122 Author: Date:
2005 SEQUOIA (RM1146U)
2 Check speed sensor.
Front:
PREPARATION:
(a) Make sure that there is no looseness at the connector
lock part and connecting part of the connector.
(b) Disconnect the speed sensor connector.
CHECK:
Measure the resistance between terminals 1 and 2 of the speed
sensor connector.
OK:
Resistance: 0.92 to 1.22 kW
CHECK:
Measure the resistance between terminals 1 and 2 of the speed
sensor connector and body ground.
OK:
Resistance: 1 MW or higher
Rear:
PREPARATION:
(a) Make sure that there is no looseness at the connector
lock part and connecting part of the connector.
(b) Disconnect the speed sensor connector.
CHECK:
Measure the resistance between terminals 1 and 2 of the speed
sensor connector.
OK:
Resistance: 1.8 to 2.2 kW
CHECK:
Measure the resistance between terminals 1 and 2 of the speed
sensor connector and body ground.
OK:
Resistance: 1 MW or higher
NG Replace speed sensor
(See page BR±56 or BR±59).
NOTICE:
Check the speed sensor signal after replacement (See
page DI±899).
OK