1998 TOYOTA LAND CRUISER wiring

F17708
ABS & BA & TRAC
& VSC ECU ABS & BA & TRAC
& VSC Actuator
Engine Room R/B
Engine Room J/B and
Engine Room R/B
FL Block
BatterySTR
SA3
SA2
SA1
SR A41
A41
A41
A41
A41
R1+
A411192 3 4 5
G-Y
G-W
B
G A396
5
A39
11
A39
12
A39
A374 STR
SA3
SA2
SA1
BSL-B
1 ABS SOL Relay
1
1131
4 6
1
1 1C1 ABS No.1
F15 MAINB-GB-RP G-Y
2
2 B-G DI-544
- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEM
737 Author
: Date
:
2004 LAND CRUISER (RM1071U)
WIRING DIAGRAM

F17753
ABS & BA & TRAC
& VSC ECU C17
Combination Meter
B-R B-W14
A43
23
A43
1
F16 SS1+
SS1-
IG1
ESS3
11
1
2W
GWW
G
G
6II3 27
IG1 15
IG1 16
IH2II3
L-B
W-B SB2C1 39
16
37 2E
2E 2Q
3
215B-GSS1+
SS1-
Battery
IFIF
2Q Cowl Side J/B LHIH29 42IG1
AM1
ALTFL Block AM1
ECU-IG1 26
23Cowl Side J/B LH
IG1 No.2 Relay
I18
Ignition SW SB
J/B No.2
- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEMDI-547
740 Author
: Date
:
2004 LAND CRUISER (RM1071U)
WIRING DIAGRAM

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
A42 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
DI-554- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEM
747 Author
: Date
:
2004 LAND CRUISER (RM1071U)
WIRING DIAGRAM
INSPECTION PROCEDURE
1 Perform zero point calibration of the yaw rate sensor (See page DI-505).
2 Is DTC still output?
Check the DTC on page DI-505.
NO END.
YES

F17758
Cowl Side J/B LH BatteryEngine Room J/B
Cowl Side J/B LH
Cowl Side J/B RH J4
J/C
Cowl Side J/B LH
IG1 No. 2 Relay
ECU-IG1
AM1
ALT
MAINFL Block
EE IFIG2
IG1
GND4
GND3
GND1
GND2 A44
A42
A42 A42
A41
A41 2A
2B3
13 J/B No. 2
IFF15 F16
2 12C1
2E 2E
2B
3918 37
12
533B 3E22 4IGN2A
2E41 10 1
1C 1B9 AM2
W-R
B-R B-R
B-R B-G
W-R
L-B
B-R
AA
B-G
W-B B-W
W-B
W-B 4
62
7 IG1
AM1
AM2 IG2
W-B
22
6
17
8
31
6 ABS & BA & TRAC
& VSC ECU
W-B
W-B
W-B
W-B
W-B I18
Ignition SW
DI-558- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEM
751 Author
: Date
:
2004 LAND CRUISER (RM1071U)
DTC C1241 / 41 IG Power Source Circuit
CIRCUIT DESCRIPTION
DTC No.DTC Detecting ConditionTrouble Area
C1241 / 41
Detection of any of the conditions 1. through 4.:
1. Vehicle speed is 1.9 mph (3 km/h) or more and voltage
of ECU terminal IG remains below 9.5 V for more than
10 sec.
2. While the condition that the solenoid relay is ON contin-
ues, ECU terminal IG1 voltage becomes 9.5 V or less,
and the condition that the contact point of the solenoid
relay is OFF continues for 0.2 sec. or more.
3. The condition that ECU terminal IG1 voltage is more
than 17.0 V continues for 1.2 sec. or more.
4. While the solenoid relay outputs ON signal, ECU termi-
nal IG1 voltage becomes more than 17.0 V, and the
condition that the contact point of the solenoid relay is
OFF continues for 0.2 sec. or more.

Battery

IC regulator

Power source circuit
WIRING DIAGRAM
DIC9N-01

F02836
GND1
GND2GND3
GND4
F04448
Driver Side J/B
ECU-IG
DI-560- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEM
753 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).

F17758
Cowl Side J/B LH BatteryEngine Room J/B
Cowl Side J/B LH
Cowl Side J/B RH J4
J/C
Cowl Side J/B LH
IG1 No. 2 Relay
ECU-IG1
AM1
ALT
MAINFL Block
EE IFIG2
IG1
GND4
GND3
GND1
GND2 A44
A42
A42 A42
A41
A41 2A
2B3
13 J/B No. 2
IFF15 F16
2 12C1
2E 2E
2B
3918 37
12
533B 3E22 4IGN2A
2E41 10 1
1C 1B9 AM2
W-R
B-R B-R
B-R B-G
W-R
L-B
B-R
AA
B-G
W-B B-W
W-B
W-B 4
62
7 IG1
AM1
AM2 IG2
W-B
22
6
17
8
31
6 ABS & BA & TRAC
& VSC ECU
W-B
W-B
W-B
W-B
W-B I18
Ignition SW
- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEMDI-561
754 Author
: Date
:
2004 LAND CRUISER (RM1071U)
DTC C1242 / 42 IG2 Power Source Circuit
CIRCUIT DESCRIPTION
DTC No.DTC Detecting ConditionTrouble Area
C1242 / 42With the vehicle running, open circuit in IG2 is detected for
more than 7 sec.
Battery

IC regulator

Power source circuit
WIRING DIAGRAM
DIC9O-01

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
A42 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 DI-564
- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEM
757 Author
: Date
:
2004 LAND CRUISER (RM1071U)
DTCC1243 / 43, C1245 / 45Malfunction in Deceleration Sensor
CIRCUIT DESCRIPTION
DTC No.DTC Detecting ConditionTrouble Area
C1243 / 43
While vehicle speed becomes 0 mph (0 km/h) from 30 km/h
(18 mph), and the condition that GL1 and GL2 signals of ECU
terminals did not change 40 mV or less continued in a
sequence 16 times.
Deceleration sensor
C1245 / 45
At the vehicle speed of 18 mph (30 km/h) or more, and the
condition that the difference between acceleration and decel-
eration values of computation from deceleration sensor and
vehicle speed becomes more than 0.35 G continues for 60
sec. or more.
Deceleration sensor

Wire harness for deceleration sensor system
WIRING DIAGRAM
DIC9P-01

F17752
ABS & BA & TRAC
& VSC 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
A42 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
GYAWABS & BA & TRAC
& VSC ECU
- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEMDI-567
760 Author
: Date
:
2004 LAND CRUISER (RM1071U)
DTC C1244 / 44 Deceleration Sensor Circuit
CIRCUIT DESCRIPTION
This sensor detects vehicle deceleration. The sensor signal is used in ABS & BA & TRAC & VSC control.
If the sensor functions abnormally, the ABS warning light comes on.
DTC No.DTC Detecting ConditionTrouble Area
C1244 / 44
Either of the following 1., 2., 3. or 4. is detected:
1. The condition that ECU terminals GL1 and GL2 values are
-1.5 G or less or 1.5 G or more continues for 1.2 sec. or
more.
2. The condition that the deceleration sensor terminal VGS
voltage is 4.4 V or less or 5.6 V or more continues for 1.2
sec. or more.
3. At a vehicle speed of 0 mph (0 km/h), after the difference of
output value between deceleration sensor terminals GL1
and GL2 becomes 0.6 G or more, and the condition that
does not become 0.4 G or less continues for 60 sec. or
more.
4. Deceleration sensor signal momentary open occurs for 7
times or more.

Deceleration sensor

Deceleration sensor circuit
WIRING DIAGRAM
DIC9Q-01