1998 TOYOTA LAND CRUISER relay

DIC8X-01
F17606
ABS Motor 1
Relay
ABS Motor 2
RelayABS Solenoid
Relay
Master Cylinder Pressure Sensor
Hydraulic Brake Booster
Check
Connector
Front Speed
Sensor Rotor
Front Speed Sensor
Engine Room J/BNeutral Start SwitchRear Speed Sensor
RotorRear Speed
Sensor
Steering Angle Sensor
Engine and ECT
ECU
Yaw Rate Sensor and
Deceleration Sensor DLC3
Stop Light Switch Skid Control ECU with
Warning Buzzer Combination Meter

ABS Warning Light

VSC TRC Warning Light

BRAKE Warning Light

VSC OFF Indicator Light

SLIP Indicator Light

ACTIVE TRC
Indicator Light
DI-522- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEM
715 Author
: Date
:
2004 LAND CRUISER (RM1071U)
PARTS LOCATION

F06425
Hand-held
Tester
DLC3
- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEMDI-507
700 Author
: Date
:
2004 LAND CRUISER (RM1071U)
(e) In case of using hand-held tester:
Clear the DTC.
(1) Hook up the hand-held tester to the DLC3.
(2) Turn the ignition switch ON.
(3) Operate the hand-held tester to erase the codes.
(See the hand-held tester operator's manual.)
2. DATA LIST
HINT:
According to the DATA LIST displayed by the hand-held tester, you can read the value of the switch, sensor,
actuator and so on without parts removal. Reading the DATA LIST as a first step of troubleshooting is one
of the methods to shorten labor time.
(a) Connect the hand-held tester to the DLC3.
(b) Turn the ignition switch ON.
(c) According to the display on the tester, read the ºDATA LISTº.
ItemMeasurement Item/Range
(Display)Normal Condition*Diagnostic Note
HB MOT RELAYHB Motor relay status/
ON or OFF--
ABS MOT RELAYMotor relay status/ ON or OFF--
SOL RELAYSolenoid relay status/
ON or OFF--
PRESS HIGH
HIGH Hydraulic brake boost pres-
sure/ ON or OFF
--
PRESS LOWLOW Hydraulic brake boost
pressure/ ON or OFF--
VSC/TRC OFF SWVSC OFF switch/ ON or OFF--
IDLE SWMain idle switch/ ON or OFFON: Accelerator pedal released
OFF: Accelerator pedal depressed-
STOP LIGHT SWStop light switch/ ON or OFFON: Brake pedal released
OFF: Brake pedal depressed-
PKB SWPKB sw/ ON or OFFON: Parking brake applied
OFF: Parking brake released-
ABS OPERT FRFront Right wheel operation/
BEFORE or OPERATEBEFORE: No ABS operation (FR)
OPERATE: During ABS operation
(FR)
-
ABS OPERT FLFront Left wheel operation/
BEFORE or OPERATEBEFORE: No ABS operation (FL)
OPERATE: During ABS operation
(FL)
-
ABS OPERT RRRear Right wheel operation/
BEFORE or OPERATEBEFORE: No ABS operation (RR)
OPERATE: During ABS operation
(RR)
-
ABS OPRET RLRear Left wheel operation/
BEFORE or OPERATEBEFORE: No ABS operation (RL)
OPERATE: During ABS operation
(RL)
-
WHEEL SPD FRFront Right wheel speed /
Min.: 0km/h, Max.: 326.4 km/hActual wheel speedSpeed indicated on speedometer

- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEMDI-509
702 Author
: Date
:
2004 LAND CRUISER (RM1071U)
3. ACTIVE TEST
HINT:
Performing the ACTIVE TEST using the hand-held tester allows the relay, VSV, actuator and so on to oper-
ate without parts removal. Performing the ACTIVE TEST as a first step of troubleshooting is one of the meth-
ods 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 ON.
(c) According to the display on the tester, perform the ºACTIVE TESTº.
HINT:
IG must be turned ON to proceed the ACTIVE TEST using a hand-held tester.
*
1: For VSC equipped vehicles only
ItemTest DetailsDiagnostic Note
SFRRTurns ABS solenoid (SFRR) ON / OFFOperation of solenoid (click-
ing sound) can be heard
SFRHTurns ABS solenoid (SFRH) ON / OFFOperation of solenoid (click-
ing sound) can be heard
SFLRTurns ABS solenoid (SFLR) ON / OFFOperation of solenoid (click-
ing sound) can be heard
SFLHTurns ABS solenoid (SFLH) ON / OFFOperation of solenoid (click-
ing sound) can be heard
SRRRTurns ABS solenoid (SRRR) ON / OFFOperation of solenoid (click-
ing sound) can be heard
SRRHTurns ABS solenoid (SRRH) ON / OFFOperation of solenoid (click-
ing sound) can be heard
SRLRTurns ABS solenoid (SRLR) ON / OFFOperation of solenoid (click-
ing sound) can be heard
SRLHTurns ABS solenoid (SRLH) ON / OFFOperation of solenoid (click-
ing sound) can be heard
SRCF (SA1)Turns ABS solenoid (SRCF (SA1)) ON / OFFOperation of solenoid (click-
ing sound) can be heard
SRCR (SA2)Turns ABS solenoid (SRCR (SA2)) ON / OFFOperation of solenoid (click-
ing sound) can be heard
SRMF (SMCF, SA3)Turns ABS solenoid (SMCF, SA3)) ON / OFFOperation of solenoid (click-
ing sound) can be heard
SRMR (SMCR, STR)Turns ABS solenoid (SRMR (SMCR, STR)) ON / OFFOperation of solenoid (click-
ing sound) can be heard
SFRR & SFRHTurns ABS solenoid SFRR & SFRH ON / OFFOperation of solenoid (click-
ing sound) can be heard
SFLR & SFLHTurns ABS solenoid SFLR & SFLH ON / OFFOperation of solenoid (click-
ing sound) can be heard
SRH & SRRTurns ABS solenoid SRRR & SRRH ON / OFFOperation of solenoid (click-
ing sound) can be heard
SRLR & SRLHTurns ABS solenoid SRLR & SRLH ON / OFFOperation of solenoid (click-
ing sound) can be heard
SFRH & SFLHTurns ABS solenoid SFRH & SFLH ON / OFFOperation of solenoid (click-
ing sound) can be heard
SRCF & SRCRTurns ABS solenoid SRCF & SRCR ON / OFFOperation of solenoid (click-
ing sound) can be heard

DI-510- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEM
703 Author
: Date
:
2004 LAND CRUISER (RM1071U)SRMF & SRMR
Turns ABS solenoid SRMF & SRMR ON / OFFOperation of solenoid (click-
ing sound) can be heard
SOL RELAYTurns ABS solenoid relay ON/OFFOperation of solenoid (click-
ing sound) can be heard
ABS MOT RELAYTurns ABS motor relay ON/OFFOperation of motor (clicking
sound) can be heard
TRAC MOT RELAYTurns TRC motor relay ON/OFFOperation of motor (clicking
sound) can be heard
ABS WARN LIGHTTurns ABS warning light ON / OFFObserve combination meter
VSC WARN LIGHTTurns VSC warning light ON / OFFObserve combination meter
VSC/ TRC OFF INDTurns VSC / TRC OFF indicator ON / OFFObserve combination meter
SLIP INDI LIGHTTurns SLIP indicator light ON / OFFObserve combination meter
BRAKE WRN LIGHTTurns BRAKE warning light ON / OFFObserve combination meter
VSC/BR WARN BUZTurns VSC / BRAKE warning buzzer ON / OFFBuzzer can be heard
4. FREEZE FRAME DATA
(a) The vehicle (sensor) status memorized during ABS and/or VSC operation or at the time of error code
detection can be displayed by the hand-held tester.
(b) Only one record of freeze frame data is stored and the freeze frame data generated during ABS and/or
VSC operation are constantly updated. Also, the number of the ignition switch's ºONº after the freeze
frame data is stored can be memorized up to 31 and it can be displayed.
HINT:
If the ignition switch ºONº operation exceeds 31 times, º31º appears on the display.
(c) If the diagnosis code abnormality occurs, the freeze frame data at the occurrence of the abnormality
is stored but the ABS actuation data is deleted.
Hand-held tester displayMeasurement ItemReference Value*
VEHICLE SPDWheel speed sensor readingSpeed indicated on speedometer
STOP LIGHT SWStop light switch signalStop light switch ON: ON, OFF: OFF
# IG ONNumber of operations of ignition switch ON after
memorizing freeze frame data0 - 31
MAS CYL PRESSMaster cylinder pressure sensor readingBrake pedal release : 0.3 to 0.9 V
Brake pedal depress: 0.8 to 4.5 V
MASS PRESS GRADEMaster cylinder pressure sensor change-30 to 200 MPa/s
SYSTEMSystem status
ABS activated: ABS
VSC/TRC activated: VSC/TRC
BA activated: BA
Fail safe mode activated: FAIL SF
No system activated: NO SYS
YAW R AT EYaw rate angle sensor reading-100 to 100
STEERING ANGSteering sensor readingLeft turn: Increase
Right turn: Drop
THROTTLEThrottle position sensor readingRelease accelerator pedal: Approx. 0 deg.THROTTLEThrottle position sensor readingRelease accelerator edal: A rox. 0 deg.
Depress accelerator pedal: Approx. 90 deg.
G (RIGHT & LEFT)Right and left G-1.869 to 1.869
G (BACK & FORTH)Back and forth G-1.869 to 1.869
VSC (TRC) OFF SWVSC OFF switch signalTRAC OFF SW ON: ON
OFF: OFF

DIC8Z-01
F02094
A44 A43
A42A41
- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEMDI-523
716 Author
: Date
:
2004 LAND CRUISER (RM1071U)
TERMINALS OF ECU
Symbols (Terminals No.)Wiring ColorConditionSTD Voltage (V)
SA1 (A41 - 2) - GND (A41 - 6,
31, A42 - 8, 17)G - W-BIG switch ON, ABS warning light OFF10 to 14 V
SA2 (A41 - 3) - GND (A41 - 6,
31, A42 - 8, 17)B - W-BIG switch ON, ABS warning light OFF10 to 14 V
SA3 (A41 - 4) - GND (A41 - 6,
31, A42 - 8, 17)G-W - W-BIG switch ON, ABS warning light OFF10 to 14 V
STR (A41 - 5) - GND (A41 - 6,
31, A42 - 8, 17)G-Y - W-BIG switch ON, ABS warning light OFF10 to 14 V
SFLR (A41 - 7) - GND (A41 -
6, 31, A42 - 8, 17)B-Y - W-BIG switch ON, ABS warning light OFF10 to 14 V
SRRH (A41 - 8) - GND (A41 -
6, 31, A42 - 8, 17)W - W-BIG switch ON, ABS warning light OFF10 to 14 V
SRRR (A41 - 9) - GND (A41 -
6, 31, A42 - 8, 17)B-O - W-BIG switch ON, ABS warning light OFF10 to 14 V
VCM (A41 - 10) - GND (A41 -
6, 31, A42 - 8, 17)B - W-BIG switch ON4.5 to 5.5 V
PH (A41 - 11) - GND (A41 - 6,OWBIG switch ON, pressure switch (PH) ONBelow 0.9 VPH (A41 11 ) GND (A41 6,
31, A42 - 8, 17)O - W-BIG switch ON, pressure switch (PH) OFF5 to 8 V
FR+ (A41 - 14) - FR- (A41 -
13)L - PIG switch ON, slowly turn right front wheelAC generation
FL+ (A41 - 16) - FL- (A41 -
15)R - GIG switch ON, slowly turn left front wheelAC generation
SR (A41 - 19) - R1+ (A41 - 1)G-Y - PIG switch ON, ABS warning light OFF10 to 14 V
SFLH (A41 - 21) - GND (A41 -
6, 31, A42 - 8, 17)Y - W-BIG switch ON, ABS warning light OFF10 to 14 V
PMC (A41 - 22) - E2 (A41 -
12)R - WIG switch ON, stop light switch OFF0.3 to 0.7 V
E2 (A41 - 12) - GND (A41 - 6,
31, A42 - 8, 17)W - W-BIG switch OFFContinuity
MTT (A41 - 27) - GND (A41 -
6, 31, A42 - 8, 17)B-R - W-BIG switch ON (Motor relay is OFF)Below 1.5 V
MT+ (A41 - 28) - MT- (A41 -
18)L - GRIG switch ON (Motor relay is ON)Below 1.5 V
MR1 (A41 - 29) - R1+ (A41 -
1)R - PIG switch ON, hydraulic brake booster pump motor running10 to 14 V
WA (A42 - 1) - GND (A41 - 6,
31, A42 - 8, 17)R-L - W-BIG switch ON, ABS warning light OFFBelow 2.0 V

D12758
B-RB-W
B-W
2 391
IG1 No. 3 Relay
STAR To Starter Relay
A
7
39 SB LL2L DL7
R-LG-W
GAUGE2If1
ALT
Battery1
2C2EI18
Ignition SW
B-R 12 IN2
IG1 1310
J/B No. 6
3P
3QSB
3C6D
3M4
4 5
2 4
2Q6
Ib2185C
GPECM
E6
E5
E9
E8R
D
2 N NSW
Shift Lock Control ECU
6
B-G5D
2
6C 8
6
II 109
R-B
AM111
20
9 16
17 J17
J/C
33M
3M
3M 3P
3P
3P
3E
2E6C6D 6D
AM137 77
1Cowl Side J/B LH
L-B
2 J/B No. 2J/B No. 3 FL Block
1
1
F16 F17B-G141
3 Cowl Side J/B RH
G-R R-L G-B G-Y
A48A48 A48 A48 R-L 14R-L
3
RBNL RL PL
1
G-BE8 E8E8 E9
3 1913
5
6 11
12
13
34
17
27
28
30
20
16 6D6D6D 6D
6C 6C 6C6C 6C 6C 6CA A
B-W
69 P1
Park/Neutral Position SW
G-Y G-R To Body ECUG-W
1
G-W
IX1
1
R-B R-BG-W
G
G-B G-Y G-R
R-L
G-R8
23
1 3
5L
4 E8E8 G-W J/B No. 5
NSSD
NSSL
AT L
AT 41
6
12
8G-B G-Y NP
To ABS & BA &
TRAC & VSC ECU
DI-406
- DIAGNOSTICSAUTOMATIC TRANSMISSION
599 Author
: Date
:
2004 LAND CRUISER (RM1071U)
WIRING DIAGRAM

D12765
ECM
L4 4
E8 EB1 6CJ/B No. 6
115 D5
Detection SW
(Transfer L Position)
J/B No. 3
ALT
II R-LB-L
1
26D31
R-LB-L
EB1B-L 3 11
IN2Ib2 14 6
R-L
R-L3
1
39 3E
3C
3Q
1 23
5 IG1 No. 3 RelayGAUGE2 Cowl Side J/B RH
Cowl Side J/B LHB-G
SB
J/B No. 2
Battery FL Block
1 1
F17 F16 B-G
B-G13937 77
2Q
2C2E
2E AM1I18
Ignition SW
AM1 IG12 4
B-R L-B DI-474
- DIAGNOSTICSAUTOMATIC TRANSMISSION
667 Author
: Date
:
2004 LAND CRUISER (RM1071U)
WIRING DIAGRAM

DI-366
- DIAGNOSTICSAUTOMATIC TRANSMISSION
559 Author
: Date
:
PATTERN SW (M)Pattern SW (PWR) Status/
ON or OFFPattern SW (PWR) is;
Pushed in: ON
Pushed once again: OFF
u
SNOW SWPattern SW (2nd) Status/
ON or OFF

IG SW ON: OFF
O

Pattern SW (2nd) Push: ON
O

Pattern SW (2nd) Push: OFF
u
SOLENOID (SLT)Shift Solenoid SLT Status/
ON or OFFIG SW ON: ONu
SOLENOID (SLU)Shift Solenoid SLU Status/
ON or OFF
Lock Up: ON

Except Lock Up: OFFu
SPD (SP2)
Counter Gear Speed display/
min.: 0 km/h (0 mph)
max.: 255 km/h (158 mph)
Vehicle stopped: 0 km/h (0 mph)u
AT FLUID TEMP
ATF Temp. Sensor No. 1 Value/
min.: -40C (-40F)
max.: 215C (419F)80C (176F)
(After Stall Test)
If the value is º-40C (-40F)º or
º215C (419F)º, ATF temp. sen-
sor No. 1 circuit is opened or
shorted.
5. ACTIVE TEST
HINT:
Performing the ACTIVE TEST using the Hand-held tester allows the relay, VSV, actuator and so on to oper-
ate without parts removal. Performing the ACTIVE TEST as a first step of troubleshooting is one method
to shorten labor time.
It is possible to display the DATA LIST during the ACTIVE TEST.
(a) Warm up the engine.
(b) Turn the ignition switch OFF.
(c) Connect the Hand-held tester to the DLC3.
(d) Turn the ignition switch ON.
(e) Push the ºONº button of Hand-held tester.
(f) Select the item º/DIAGNOSIS/ENHANCED OBD ll/ACTIVE TESTº.
(g) According to the display on tester, perform the ºACTIVE TESTº.
ItemTest DetailsDiagnostic Note
SHIFT
[Test Details]
Operate the shift solenoid valve and set the each shift position by your-
self.
[Vehicle Condition]
Less than 50 km/h (31 mph)
[Others]

Press " button: Shift up

Press u button: Shift downPossible to check the operation of
the shift solenoid values.
HINT:
Shifting to the 5th gear is possible
only when the vehicle stops or idle
is ON.
LOCK UP
[Test Details]
Control the shift solenoid SLU to set the ATM to the lock-up condition.
[Vehicle Condition]
Vehicle Speed: 58 km/h (36 mph) or more
Possible to check the SLU opera-
tion.
LINE PRESS UP
[Test Details]
Operate the shift solenoid SLT and raise the line pressure.
[Vehicle Condition]

Vehicle Stopped.

IDL: ON
[Others]
ON: Line pressure up.
OFF: No action (normal operation)
-