TOYOTA LAND CRUISER 1998 Factory Repair Manual

R01346
Normal Code
0.25 sec.
0.25 sec. 2 sec.
ON
OFF
ON
OFF0.5 sec. 0.5 sec.
Code 11 and 21
4 sec.1.5 sec.
2.5 sec.
Code 11 Code 21
F06425
Hand-held
Tester
DLC3
F05576
DI-506- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEM
699 Author
: Date
:
2004 LAND CRUISER (RM1071U)

As an example, the blinking patterns for normal code and
codes 11 and 21 are shown on the left.
(4) Codes are explained in the code table on page
DI-518.
(5) After completing the check, disconnect terminals Tc
and E
1 of the DLC1 or Tc and CG of the DLC3 and
turn off the display.
If 2 or more malfunctions are indicated at the same time the low-
est numbered DTC will be displayed 1st.
(c) In case of using hand-held tester:
Check the DTC.
(1) Hook up the hand-held tester to the DLC3.
(2) Turn the ignition switch ON.
(3) Read the DTC by following the prompts on the tes-
ter screen.
HINT:
Please refer to the hand-held tester operator's manual for fur-
ther details.
(d) In case of not using hand-held tester:
Clear the DTC.
(1) Using SST, connect terminals Tc and E
1 of the
DLC1 or Tc and CG of the DLC3.
SST 09843-18020 or 09843-18040
(2) Turn the ignition switch ON.
(3) Clear the DTC stored in the ECU by depressing the
brake pedal 8 or more times within 5 sec.
(4) Check that the warning light shows the normal
code.
(5) Remove the SST from the terminals of the DLC1 or
DLC3.
SST 09843-18020 or 09843-18040

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

DI-508- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEM
701 Author
: Date
:
2004 LAND CRUISER (RM1071U)WHEEL SPD FL
Front Left wheel speed/
Min.: 0km/h, Max.: 326.4 km/hActual wheel speedSpeed indicated on speedometer
WHEEL SPD RRRear Right wheel speed/
Min.: 0km/h, Max.: 326.4 km/hActual wheel speedSpeed indicated on speedometer
WHEEL SPD RLRear Left wheel speed/
Min.: 0km/h, Max.: 326.4 km/hActual wheel speedSpeed indicated on speedometer
DECELERAT SENSG sensor (GL1 filter)/
Min.: -1.869 G, Max.: 1.869Approximately 0 ± 0.13 G at still
conditionReading changes when vehicle is
bounced
DECELERAT SENS2G sensor (GL2 filter)/
Min.: -1.869 G, Max.: 1.869Approximately 0 ± 0.13 G at still
conditionReading changes when vehicle is
bounced
IG VOLTAGEECU IG power voltage/
UNDER or NORMAL or OVER--
SFRRSFRR/ ON or OFF--
SFRHSFRH/ ON or OFF--
SFLRSFLR/ ON or OFF--
SFLHSFLH/ ON or OFF--
SRRR (SRR)SRRR (SRR)/ ON or OFF--
SRRH (SRH)SRRH (SRH)/ ON or OFF--
SRLRSRLR/ ON or OFF--
SRLHSRLH/ ON or OFF--
SRCF (SA1)SRCF (SA1)/ ON or OFF--
SRCR (SA2)SRCR (SA2)/ ON or OFF--
SRMF (SMCF, SA3)SRMF (SMCF, SA3)/ ON or OFF--
SRMR (SMCR, STR)SRMR (SMCR, STR)/ ON or OFF--
THROTTLEThrottle position sensor/
Min.: 0 deg, Max.: 125 deg--
ENGINE SPDEngine Speed/
Min.: 0 rpm, Max.: 6000 rpmActual engine speed-
YAW R AT EYaw rate sensor/
Min.: -128 deg/s, Max.: 128 deg/s--
YAW ZERO VALUEMemorized zero value/
Min.: -128 deg/s, Max.: 128 deg/s--
STEERING ANG
Steering sensor/
Min.: -1682 deg,
Max.: 1877 deg
-1682 to 1877 deg
Turning the steering wheel
changes the value
Left : Becomes grater
Right : Becomes smaller
MAS CYL PRS 1Master cylinder pressure 1/
Min.: 0 V, Max.: 5 VWhen brake pedal is released:
0.3 - 0.9 VReading increases when brake
pedal is depressed
AIR BLD SUPPORTAir bleed support/
NOT SUP or SUPPORTw/ BA: Supported
w/ VSC: Not supported-
TEST MODETest mode operation/
NORMAL or TESTNORMAL: Normal mode
TEST: During test mode-
#CODESNumber of Trouble Code/
Min.: 0, Max.: 255MIn.: 0, Max.: 45-

- 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

F06425
Hand-held
Tester
DLC3
- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEMDI-513
706 Author
: Date
:
2004 LAND CRUISER (RM1071U)
(b) In case of using hand-held tester:
Check the sensor signal.
(1) Hook up the hand-held tester to the DLC3.
(2) Do step (3) to (10) on the previous page.
(3) Read the DTC by following the prompts on the tes-
ter screen.
HINT:
Please refer to the hand-held tester operator's manual for fur-
ther details.
DTC of speed sensor signal check function:
Code No.DiagnosisTrouble Area
C1271 / 71Low output voltage in right front speed sensor

Right front speed sensor

Sensor installation

Sensor rotor
C1272 / 72Low output voltage in left front speed sensor

Left front speed sensor

Sensor installation

Sensor rotor
C1273 / 73Low output voltage in right rear speed sensor

Right rear speed sensor

Sensor installation

Sensor rotor
C1274 / 74Low output voltage in left rear speed sensor

Left rear speed sensor

Sensor installation

Sensor rotor
C1275 / 75Abnormal change in output voltage of right front speed
sensorRight front speed sensor rotor
C1276 / 76Abnormal change in output voltage of left front speed
sensorLeft front speed sensor rotor
C1277 / 77Abnormal change in output voltage of right rear speed
sensorRight rear speed sensor rotor
C1278 / 78Abnormal change in output voltage of left rear speed
sensorLeft rear speed sensor rotor
C1279 / 79Deceleration sensor is faulty
Deceleration sensor

Sensor installation
C1281 / 81Master cylinder pressure sensor output signal is faultyMaster cylinder pressure sensor
C1282 / 82Transfer indicator (center diff. lock) switch malfunctionTransfer indicator (center diff. lock) switch
C1283 / 83Transfer L4 position switch malfunctionTransfer L4 position switch
6. In case of not using hand-held tester:
VSC SENSOR CHECK (TEST MODE)
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 8.).
HINT:
If the ignition switch is turned from the ON to the ACC or LOCK
during test mode, DTC will be erased.

F02201
DLC1 E1
TcTs
BR3904
0.13 sec. 0.13 sec.
ON
OFF
F02135
Start Position
End PositionWithin ± 5° DI-514
- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEM
707 Author
: Date
:
2004 LAND CRUISER (RM1071U)
(a) Procedures for test mode:
(1) Turn the ignition switch OFF.
(2) Check that the shift lever is in the P position, and
turn the steering wheel to the neutral position.
(3) Using SST, connect terminals Ts and E
1 of the
DLC1.
SST 09843-18020
(4) Start the engine.
(5) Check that the VSC TRAC warning light blinks.
HINT:
If the VSC TRAC warning light does not blink, inspect the VSC
TRAC warning light circuit and Ts terminal circuit (See page
DI-631 and DI-653).
Turn the steering wheel either to the left or right 450° or
more from the vehicle stationary condition, and turn back
the steering wheel to the straight ahead position.
(b) Keep the vehicle stationary on a level place for 1 sec. or
more.
(c) Check the yaw rate sensor.
Shift the shift lever to the D position and drive the vehicle
at a vehicle speed of approx. 5 km/h (3 mph), turn the
steering wheel either to the left or right 90° or more, and
maintain this angle until the vehicle has turned 180°.
Stop the vehicle and shift the shift lever to the P
position. Check that the VSC buzzer sounds for 3
sec.
If the VSC buzzer sounds, the sensor check is in normal
completion.
If the VSC buzzer does not sound, do the sensor check again.
If the VSC buzzer still does not sound, check the VSC buzzer
circuit, then do the sensor check again.
Trouble AreaSee page
VSC buzzer circuitDI-649
HINT:

Make a 180° turn. At the end of the turn, the direction of
the vehicle should be within 180°± 5° of its start position.

Do not spin the wheels.
(d) Read the DTC.
(1) Using SST, connect terminals Tc and E
1 of the
DLC1 or Tc and CG of the DLC3.
SST 09843-18020 or 09843-18040
(2) Read the number of times the VSC TRAC warning
light blinks.
HINT:

See the list of DTC shown 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.)

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