Page 856 of 3115
F02836
GND1
GND2GND3
GND4
F04448
Driver Side J/B
ECU-IG
DI-604- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEM
797 Author: Date:
2004 LAND CRUISER (RM1071U)
3 Check continuity between terminal GND of skid control ECU connector and body
ground.
CHECK:
Measure resistance between terminal GND of the skid control
ECU connector and body ground.
OK:
Resistance: 1 W or less
NG Repair or replace harness or connector.
OK
4 Check ECU-IG fuse.
PREPARATION:
Remove the ECU-IG fuse from the driver side J/B.
CHECK:
Check continuity of the ECU-IG fuse.
OK:
Continuity
NG Check for short circuit in all the harness and
components connected to ECU-IG fuse (See at-
tached wiring diagram).
OK
Check for open circuit in harness and connector between skid control ECU and battery (See page
IN-36).
Page 857 of 3115
F17749
ABS & BA & TRAC
& VSC ECU
EXI2 A432
B-L
3B 20
3Q54Cowl Side J/B RH
SB
IX15
B-L
32
B-L
EB13
B-LD5
Detection SW
1
2R-L
EB111
R-L
IN214
R-L
Ib26
R-L
3E3 GAUGE2
3 5
21 IG1 No.3 Relay
3C1
3Q 39
2E 39AM1
2C
II F161B-G
J/B No.2
ALT
J/B No.3 B-G
SB
B-R 2Q77
2E 37Cowl Side J/B LH
L-B
I18
Ignition SW
42IG1 AM16D J/B No.6
6D31
1 Cowl Side J/B RH
FL Block
F171
Battery Cowl Side J/B LH
- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEMDI-605
798 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC C1268 / 68 Transfer L4 Position Switch Circuit
CIRCUIT DESCRIPTION
DTC No.DTC Detecting ConditionTrouble Area
C1268 / 68Open or short circuit in transfer L4 position switch.Transfer L4 position switch
Transfer L4 position switch circuit
WIRING DIAGRAM
DIC9Z-01
Page 861 of 3115
F17752
ABS & BA & TRAC
& VSC ECU Y1
Yaw Rate Sensor
ShieldedGL1
GL2
YD
VYS
YAW
GYAW
YSS A43
1827 289 191022
G
Y
L
B
W
R 4
2
6
8
1
5A43
A43
A43
A43
A43
A43 IG4
IG4
IG4
IG4
IG4
IG4
IG416
17
21
19
20
18
22
ShieldedG
Y
L
B
W
R GL1
GL2
YD
VYS
YAW 2
GYAW
- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEMDI-609
802 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC C1336 / 39 Zero Point Calibration of Deceleration
Sensor Undone
CIRCUIT DESCRIPTION
DTC No.DTC Detecting ConditionTrouble Area
C1236 / 39
When either of the following 1. or 2. is detected:
1. In TEST mode, the shift lever is shifted to other than P
position within 2 sec. after ECU terminal IG1 is turned
ON for the first time.
2. When the deceleration sensor zero point recorded in
ECU is deleted.
Deceleration sensor
Deceleration sensor circuit
PNP switch circuit (R position)
WIRING DIAGRAM
INSPECTION PROCEDURE
1 Check whether zero point calibration of yaw rate (deceleration) sensor has been
done or not.
PREPARATION:
Shift the shift lever in the P position and turn the ignition switch ON. Repeat connecting and releasing Ts
and E
1 terminals of the DLC1 4 times or more for 8 sec. After this, turn the ignition switch OFF and after
connecting terminals Ts and E
1, turn it ON again.
DICA1-01
Page 864 of 3115
F17776
ABS & BA & TRAC
& VSC ECU
Cowl Side J/B RH
Combination Meter
Cowl Side J/B RH
Cowl Side J/B LHI18
Ignition SW
Engine Room J/B
FL Block BatteryEXI
A433
P-B
3B3 3Q56SB 2
IX1
2 1 W-B
C1210
C1314
SB
W-B
EC
MAIN
F152
B-G1C1 AM2
1B9
W-R 2A 10
2E41
W-R
7AM2IG2
6A
AJ4
J/C
SB
3E4 MET
3Q73Q 28
SB P-B
B-R Center
Diff. LockD4
Detection SW
(Center Diff. Lock) DI-612
- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEM
805 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC C1340 / 47 Center Differential Lock Circuit
CIRCUIT DESCRIPTION
DTC No.DTC Detecting ConditionTrouble Area
C1240 / 47Open or short in center differential lock circuit.Center differential lock system
Center differential lock circuit
WIRING DIAGRAM
DICA2-01
Page 869 of 3115
F17757
FSS
FL+
FL-
FR+
FR-
RL+
RL-
RR+
RR-
RSS A41
A41
A41
A41
A41
A42
A42
A42
A42
A42 B
BB
R
G
L
P A12
ABS Speed
Sensor Front LH
IA2
BD3 BF2A13
ABS Speed
Sensor Front RH(Shielded)
A35
ABS Speed
Sensor
Rear LHJ2
J/C
W-R
42
21
R56
15
14 7
6
1
96
5
10
2
11
7
816A
A
A
W-L9 J2
J/C2120 191813 1415 16 25
R
G
B
WB
WB
W R
G R
G
A36
ABS Speed
Sensor
Rear RH 1
21
2ABS & BA & TRAC
& VSC ECU
(Shielded)
(Shielded)
(Shielded)(Shielded)
(Shielded)
(Shielded)(Shielded) G
B
WIA2
IA2
IA2
IA2
IA2 BF2
BF2
BF2BD3
BD3
BD3
BD3
BD3 DI-616
- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEM
809 Author: Date:
2004 LAND CRUISER (RM1071U)
WIRING DIAGRAM
Page 874 of 3115
F17775
ABS & BA & TRAC
& VSC ECU
IND A43 IG1 12
L-B L-B
IU412
SB
C13 Combination Meter
15
Slip
2E 41
2A 10 Cowl Side J/B LH Engine Room J/B
1B9AM2
1C1
I18
Ignition SW
AM2 IG2 W-RB-R
6
7
C1210
SB
3Q7MET
3E4 Cowl Side J/B RH
B-RJ4
J/C
AA
C151
SB
IX18
BR
EC
F152
MAIN FL Block
Battery6
W-R
B-G
- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEMDI-639
832 Author: Date:
2004 LAND CRUISER (RM1071U)
SLIP Indicator Light Circuit
CIRCUIT DESCRIPTION
The SLIP indicator blinks during VSC operation.
WIRING DIAGRAM
DICA8-02
Page 877 of 3115
F17760
J/B No. 7 D1
DLC1
Cowl Side J/B LH Cowl Side
J/B RHTC TC
E1
TC
CGA42 7D
7B 7D
IF
2D II EB3BP-B
W-BP-B P-B
W-B
W-B
W-B
1D7
DLC3
18
4 114
5
311
3
13ABS & BA & TRAC
& VSC ECU
- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEMDI-651
844 Author: Date:
2004 LAND CRUISER (RM1071U)
Tc Terminal Circuit
CIRCUIT DESCRIPTION
Connecting terminals Tc and E1 of the DLC1 or Tc and CG of the DLC3 causes the ECU to display the DTC
by flashing the ABS warning light and VSC TRAC warning light.
WIRING DIAGRAM
DICAC-01
Page 879 of 3115
F17759
INFR Combination Meter
Cowl Side J/B RH
Engine Room J/B
Cowl Side J/B LHI18
Ignition SW
FL Block
MAIN TRAC15
A43 IG1 IU4
C13 C12
MET
AM2
9 1
F15 3E 3Q
1C1B
2A2E IG2AM2
Battery SB
B-R B-R
B-R B-R SB
W-R
21041 6
7 A AJ4
J/C
B-GABS & BA & TRAC
& VSC ECU
W-R 13 13 18 10
74 DI-642
- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEM
835 Author: Date:
2004 LAND CRUISER (RM1071U)
TRAC Indicator Light Circuit
CIRCUIT DESCRIPTION
The TRAC indicator light blinks during TRAC operation.
WIRING DIAGRAM
DICA9-02
