Page 1166 of 4323
F19773
ABS & VSC Actuator
(Skid Control ECU)
G±Y S14
Stop Light SW
I18 Ignition SW1 4 W
W±L
IG1
AM12
1
B±Y Instrument Panel J/B
2 1
1L
1F
1F1C
1C 1
2
46 STOP
AM1
ECU±IG W
4
B±R
Sub J/B No.3
3C8
3A8
B±R
B±R
J37AJ/C
J38AB8 Brake
Inhibit Relay
B±R L±OL±O
IL17
L±O
S1 38
BSW
STP S139
G±Y
IL2 13 12
3 4G±Y
4B1 1
14A
4C J11A
J10C J/C
CJ10G±Y G±W G±W
G±W
G±W B
J33
J34
H
G±W C
C
CJ44C
J45JR8 Rear Combination Light RH
1
4W±B
R7 Rear Combination Light LH
1
4 H9 High Mounted
Stop Light
A
A
A J19
J/C W±B
W±B
BD212
12W±B G±W
G±W
BD14
(*1) (*1)
(*2)(*2) W±B H9
High Mounted
Stop Light
1 2J57
J/C
BP BJ F10
Fusible
Link
Block ALT 8
5
B
Battery
*1: w/o Rear Spoiler
*2: w/ Rear Spoiler J/C
G±WJ/C
G±WSub J/B No.4
Stop Stop
DI±964
± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
1158 Author: Date:
2005 SEQUOIA (RM1146U)
WIRING DIAGRAM
Page 1168 of 4323
F19782
Battery16
S1+BS
GND1
GND2
+BM S1
S1 S1 47
1
32 B±R
B±R
W±B
W±B W±B W±B 5 BF10
Fusible Link BlockABS & VSC Actuator
(Skid Control ECU)
IG J18
J/C
A A3
ABS
Motor Relay
Pump
Motor IL117
IL19 DI±966
± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
1160 Author: Date:
2005 SEQUOIA (RM1146U)
DTC C1251 / 51 Pump Motor is Locked/
Open Circuit in Pump Motor Circuit
CIRCUIT DESCRIPTION
ABS pump motor is located inside the brake actuator.
The motor is used for BA, TRAC and VSC operation.
DTC No.DTC Detecting ConditionTrouble Area
C1251 / 51Pump motor does not operate during the initial check.ABS & VSC actuator
WIRING DIAGRAM
DIDMC±01
Page 1174 of 4323
F19773
ABS & VSC Actuator
(Skid Control ECU)
G±Y S14
Stop Light SW
I18 Ignition SW1 4 W
W±L
IG1
AM12
1
B±Y Instrument Panel J/B
2 1
1L
1F
1F1C
1C 1
2
46 STOP
AM1
ECU±IG W
4
B±R
Sub J/B No.3
3C8
3A8
B±R
B±R
J37AJ/C
J38AB8 Brake
Inhibit Relay
B±R L±OL±O
IL17
L±O
S1 38
BSW
STP S139
G±Y
IL2 13 12
3 4G±Y
4B1 1
14A
4C J11A
J10C J/C
CJ10G±Y G±W G±W
G±W
G±W B
J33
J34
H
G±W C
C
CJ44C
J45JR8 Rear Combination Light RH
1
4W±B
R7 Rear Combination Light LH
1
4 H9 High Mounted
Stop Light
A
A
A J19
J/C W±B
W±B
BD212
12W±B G±W
G±W
BD14
(*1) (*1)
(*2)(*2) W±B H9
High Mounted
Stop Light
1 2J57
J/C
BP BJ F10
Fusible
Link
Block ALT 8
5
B
Battery
*1: w/o Rear Spoiler
*2: w/ Rear Spoiler J/C
G±WJ/C
G±WSub J/B No.4
Stop Stop
DI±972
± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
1166 Author: Date:
2005 SEQUOIA (RM1146U)
WIRING DIAGRAM
Page 1176 of 4323
F17285
1
2 34
1
4
3
2
DI±974
± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
1168 Author: Date:
2005 SEQUOIA (RM1146U)
2 Check brake inhibit relay.
CHECK:
Check continuity between the following terminals of the brake
inhibit relay.
OK:
Terminals 1 and 2Continuity
(Reference value 62 W)
Terminals 3 and 4Continuity
CHECK:
(a) Apply battery positive voltage between terminals 1 and 2.
(b) Check continuity between terminals.
Terminals 3 and 4Open
NG Replace brake inhibit relay.
OK
3 Check for open and short circuit in harness and connector between brake inhibit
relay and skid control ECU (See page IN±35).
NG Repair or replace harness or connector.
OK
If the same code is still indicated after the DTC is deleted, check the condition of each connection.
If the connections are normal, the skid control ECU may be defective.
NOTICE:
When replacing the skid control ECU, perform the zero point calibration (See page DI±897).
Page 1181 of 4323
F19775
TL1
TL2
TL325
F22
24
F22
23
F22B±W
B
B±RB±W
B
B±R W±B 6
IG1
9
IG1
2
IG1TL1
TL2
TL3 GND T4
Transfer Shift Actuator12
3
4
W±BW±B
W±R W
W±R W
A
J18
J/C 5
6
F10
Fusible Link Block
ALT
5
48
B BEngine Room J/B
1
2D1
2C AM2
IG Battery3
4
± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
DI±979
1173 Author: Date:
2005 SEQUOIA (RM1146U)
Page 1188 of 4323
DI±986
± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
1180 Author: Date:
2005 SEQUOIA (RM1146U)
DTC C1361 / 62 Abnormal Battery Voltage of VSC Sen-
sor
CIRCUIT DESCRIPTION
Supplies power to the VSC sensors (yaw rate and master cylinder pressure sensors) through terminal IG1.
DTC No.DTC Detecting ConditionTrouble Area
C1361/62Voltage from VSC sensor system to ECU is abnormal.
Battery
Charging system
Power source circuit
Skid control ECU
Yaw rate (deceleration) sensor
Master cylinder pressure sensor
DIDME±01
Page 1189 of 4323
M2
Master Cylinder
Pressure Sensor No.1
F19776
ABS & VSC Actuator
(Skid Control ECU)
IG1 13
S1 B±R 1
IL1 B±R B±R B±RA
J38 J/C
A
J37 8
3C 8
3ASub J/B No.3
B±RInstrument Panel J/B
4
1F
1
1L4
1C
6
1C ECU±IG
AM1
WB±Y
W±L
B±Y W±LI18
Ignition SW
12
AM1 IG1Y1
Yaw Rate (Deceleration)
Sensor
(Shield)G 5 3R
R12 11
S1
24
S1VYS
GYAW
E1 VYS
GYAW
BR
(Shield)
B
R
W30
S1
28
S1
29
S1VCM
PMC VCM
PMC
E1
BR
A
A
A
BRJ28
J/C Instrument Panel J/B
9
1F12
1KW±B
W±B
BR
J8
J/C
IE IG(Shield)
1 2 3
B
R
W26
S1
25
S1
27
S1VCM2
PMC2
E2 VCM2
PMC2
E2
1
S1
32
S1GND1
GND2 W±B
W±B W±B
W±B17
IL1
9
IL1 A
A J18
J/C 8
5ALTF10
Fusible
Link
Block12
B
Battery
IMA
J18
J/CM3
Master Cylinder
Pressure Sensor No.2G 11
10 IL1
IL1
IL1
1 2
3
± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
DI±987
1181 Author: Date:
2005 SEQUOIA (RM1146U)
WIRING DIAGRAM
Page 1190 of 4323
F19146
Master Cylinder
Pressure Sensor
No. 1Master Cylinder
Pressure Sensor
No. 2
VCM E1VCM2
E2
M3 M2
DI±988
± DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
1182 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION PROCEDURE
1 Check battery positive voltage.
OK:
Voltage: 10 to 14 V
NG Check and repair the charging system
(See page CH±1).
OK
2 Check master cylinder pressure sensor No. 1 and No. 2.
PREPARATION:
Disconnect the master cylinder pressure sensor connectors
No. 1 and No. 2.
CHECK:
(1) Turn the ignition switch to the ON position.
(2) Measure the voltage between terminal VCM and
E1, VCM2 and E2 of the harness side connector.
OK:
Voltage: 4.5 to 5.5 V
NG Go to step 4.
OK