1998 TOYOTA LAND CRUISER display

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

F02201
DLC1 E1
TcTs
BR3904
0.13 sec. 0.13 sec.
ON
OFF
- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEMDI-51 1
704 Author
: Date
:
2004 LAND CRUISER (RM1071U)Hand-held tester displayReference Value* Measurement Item
SHIFT POSITIONShift lever position
FAIL
P, N
R
D
4
3
2
L
THROTTLEThrottle sensor reading0 to 125 deg.
*: If no conditions are specifically stated for ºIdlingº, it means the shift lever is in the N or P position, the A/C
switch is OFF and all accessory switches are OFF.
5. SPEED SENSOR SIGNAL CHECK (TEST MODE)
HINT:

When replacing the yaw rate sensor or ECU, make sure
to perform a yaw rate sensor zero point calibration.

If the ignition switch is turned from the ON to the ACC or
LOCK position during test mode, DTC will be erased.
(a) In case of not using hand-held tester:
Check the speed sensor signal.
(1) Turn the ignition switch OFF.
(2) Using SST, connect terminals Ts and E
1 of the
DLC1.
SST 09843-18020
(3) Start the engine.
(4) Check that the ABS warning light blinks.
HINT:
If the ABS warning light does not blink, inspect the ABS warning
light circuit and Ts circuit (See page DI-627 and DI-653).
(5) Keep the vehicle in the stationary condition on the
flat place for 6 sec. or more.
(6) Shift the transfer lever in the L4 position and turn the
center diff. lock switch ON.
(7) Shift the transfer lever back.

BR3893
Malfunction Code (Example Code 72, 76)
72 6
7
ON
OFF
0.5 sec. 0.5 sec. 0.5 sec. 0.5 sec.1.5 sec.
2.5 sec. 4 sec.
Repeat DI-512
- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEM
705 Author
: Date
:
2004 LAND CRUISER (RM1071U)
(8) Leaving the vehicle in the stationary condition and
the brake pedal in a free condition for 1 sec. or
more, continue to depress the brake pedal with a
force of 98 N (10 kgf, 22 lbf) or more for 1 sec. or
more.
(9) Leaving the vehicle in the stationary condition, de-
press the brake pedal with a force of 980 N (100 kgf,
221 lbf) or more quickly.
HINT:
At this time, the ABS warning light comes on for 3 sec.
(10) Drive the vehicle straight forward.
When driving the vehicle with a speed faster than 28
mph (45 km/h) for several seconds, check that the
ABS warning light goes off.
HINT:
There is a case that the sensor check is not completed if the ve-
hicle has its wheels spun or its steering wheel turned during this
check.
(11) Stop the vehicle.
(12) Using SST, connect terminals Tc and E
1 of the
DLC1 or Tc and CG of the DLC3.
SST 09843-18020 or 09843-18040
(13) Read the number of blinks of the ABS warning light.
HINT:

See the list of DTC on the next page.

If every sensor is normal, a normal code is output (A cycle
of 0.25 sec. ON and 0.25 sec. OFF is repeated).

If 2 or more malfunctions are indicated at the same time,
the lowest numbered code will be displayed 1st.
(14) After doing the check, disconnect the SST from ter-
minals of the DLC1 or terminals of the DLC1 and
DLC3, and turn the ignition switch OFF.
SST 09843-18020 or 09843-18040

Malfunction Code (Example Code 71, 72)
ON
OFF
0.5 sec.0.5 sec.
1.5 sec.2.5 sec.
4 sec.
Repeat
71
72
F06425
Hand-held
Tester
DLC3
- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEMDI-515
708 Author
: Date
:
2004 LAND CRUISER (RM1071U)

If 2 or more malfunctions are indicated at the same time,
the lowest numbered code will be displayed 1st.
(3) After doing the check, disconnect the SST from ter-
minals of the DLC1 or terminals of the DLC1 and
DLC3 and turn the ignition switch OFF.
SST 09843-18020 or 09843-18040
7. In case of using hand-held tester:
CHECK VSC SENSOR SIGNAL
NOTICE:
When having replaced the yaw rate sensor, deceleration
sensor and/or ECU, perform a zero point calibration of the
yaw rate and deceleration sensors (See step 7.). Make sure
that this operation should be done before starting the fol-
lowing.
(a) Hook up the hand-held tester to the DLC3.
(b) Do steps (a)-(2) and from (a)-(4) to (c) on the previous
page.
(c) Read the DTC by following the prompts on the tester
screen.
HINT:
Please refer to the hand-held tester operator's manual for fur-
ther details.
DTC of the VSC sensor check function:
Code No.DiagnosisTrouble Area
C0371 / 71Yaw rate sensor output signal malfunction
Yaw rate sensor

Yaw rate sensor circuit

DIC91-01
DI-526- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEM
719 Author
: Date
:
2004 LAND CRUISER (RM1071U)
PROBLEM SYMPTOMS TABLE
If a normal code is displayed during the DTC check but the problem still occurs, check the circuits for each
problem symptom in the order given in the table below and proceed to the relevant troubleshooting page.
NOTICE:
When replacing the skid control ECU, sensor, etc., turn the ignition switch OFF.
SymptomSuspected AreaSee page
ABS does not operate
BA does not operate
Only when 1. to 4. are all normal and the problem is still
occurring, replace the skid control ECU.
1. Reconfirm the DTC and check that the normal code is
output.
2. IG power source circuit
3. Speed sensor circuit
4. Check the hydraulic brake booster with a checker or
hand-held tester.
If abnormal, check the hydraulic circuit for leakage (See
page DI-655).
DI-505
DI-558
DI-615
BR-40
ABS does not operate efficiently
BA does not operate
Only when 1. to 4. are all normal and the problem is still
occurring, replace the skid control ECU.
1. Reconfirm the DTC and check that the normal code is
output.
2. Speed sensor circuit
3. Stop light switch circuit
4. Check the hydraulic brake booster with a checker or
hand-held tester.
If abnormal, check the hydraulic circuit for leakage (See
page DI-655).
DI-505
DI-615
DI-573
BR-40
ABS warning light abnormal1. ABS warning light circuit
2. Skid control ECUDI-627
IN-36
DTC check cannot be done
Only when 1. to 4. are all normal and the problem is still
occurring, replace the skid control ECU.
1. ABS warning light circuit
2. VSC OFF indicator light, center diff. lock indicator switch
circuit
3. Center diff. lock indicator switch circuit
4. Tc terminal circuit
DI-627
DI-645
DI-612
DI-651
Speed sensor signal check cannot be done1. Ts terminal circuit
2. Skid control ECUDI-653
IN-36
TRAC does not operate
Only when 1. to 4. are all normal and the problem is still
occurring, replace the skid control ECU.
1. Check the DTC, reconfirming that the normal code is
output.
2. IG power source circuit
3. Check the hydraulic circuit for leakage.
4. Speed sensor circuit
DI-505
DI-558
DI-655
DI-615
VSC does not operate
Only when 1. to 7. are all normal and the problem is still
occurring, replace the skid control ECU.
1. Check the DTC, reconfirming that the normal code is
output.
2. IG power source circuit
3. Check the hydraulic circuit for leakage.
4. Speed sensor circuit
5. Deceleration sensor circuit
6. Yaw rate sensor circuit
7. Steering angle sensor circuit
DI-505
DI-558
DI-655
DI-615
DI-570
DI-553
DI-605

D06561
1
6 7 82 3 4 5
9
- DIAGNOSTICSAUTOMATIC TRANSMISSION
DI-407
600 Author
: Date
:
2004 LAND CRUISER (RM1071U)
INSPECTION PROCEDURE
HINT:
According to the DATA LIST displayed by the OBD ll scan tool or 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 method to shorten labor time.
(a) Warm up the engine.
(b) Turn the ignition switch OFF.
(c) Connect the OBD ll scan tool or Hand-held tester to the DLC3.
(d) Turn the ignition switch ON.
(e) Push the ºONº button of OBD ll scan tool or Hand-held tester.
(f) Select the item º/DIAGNOSIS/ENHANCED OBD ll/DATA LIST/ALL (or ATM)º.
(g) According to the display on tester, read the ºDATA LISTº.
ItemMeasurement Item/
Display (Range)Normal ConditionDiagnostic Note
PNP SW [NSW]PNP SW Status/
ON or OFFShift lever position is;
P or N: ON
Except P or N: OFF
REVERSEPNP SW Status/
ON or OFFShift lever position is;
R: ON
Except R: OFFThe shift lever position and these
values are different, there are fail-
ures of the PNP switch or shift
cable adjustment
DRIVEPNP SW Status/
ON or OFFShift lever position is;
D and 4: ON
Except D and 4: OFFcable adjustment.
1 Check park/neutral position switch.
PREPARATION:
(a) Jack up the vehicle.
(b) Disconnect the park/neutral position switch connector.
CHECK:
Check continuity between each terminal shown below when the
shift lever is moved to each position.
OK:
Shift positionTerminal No. to continuityTerminal No. to continuity
P1 - 36 - 9
R2 - 3-
N3 - 56 - 9
D, 43 - 7-
33 - 4-
2, L3 - 8-
NG Replace park/neutral position switch
(See page AT-7).
OK