automatic transmission fluid TOYOTA LAND CRUISER 1998 Factory User Guide
[x] Cancel search | Manufacturer: TOYOTA, Model Year: 1998, Model line: LAND CRUISER, Model: TOYOTA LAND CRUISER 1998Pages: 3115, PDF Size: 54.88 MB
Page 936 of 3115
- DIAGNOSTICSAUTOMATIC TRANSMISSION
DI-415
608 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC P0711 Transmission Fluid Temperature Sensor ºAº
Performance
CIRCUIT DESCRIPTION
The ATF temperature sensor converts fluid temperature into a resistance value which is input into the ECM.
DTC No.DTC Detecting ConditionTrouble Area
P0711
(A) Both (a) and (b) are detected: (2-trip detection logic)
(a) Intake air and engine coolant temps. are more than -10°C
(14°F) at engine start
(b) After normal driving for over 20 min. and 9 km (6 mile) or
more, ATF temp. is less than 20°C (68°F)
(B) After 17 min. of engine start, the ATF temp. is 110°C
(230°F) or more (2-trip detection logic).
Open or short in ATF temperature sensor No. 1 circuit
ATF temperature sensor No. 1
ECM
MONITOR DESCRIPTION
The ATF temperature sensor converts the ATF temperature to an electrical resistance value. Based on the
resistance, the ECM determines the ATF temperature and detects an opens or shorts in the ATF temperature
circuit or a fault of the ATF temperature sensor.
After running the vehicle for a certain period, the ATF temperature should increase. If the ATF temperature
is below 10C (50F) after running the vehicle for a certain period, the ECM interprets this as a fault, and
turns on the MIL.
When the ATF temperature is 110C (230F) or more after 17 minutes of engine cold start, the ECM also
determines this as a fault, turns on the MIL, and stores the DTC.
MONITOR STRATEGY
Related DTCsP0711ATF temperature sensor/Rationality check
Required sensors/ComponentsATF temperature sensor
Frequency of operationContinuous
Duration3 sec.
MIL operation2 driving cycles
Sequence of operationNone
TYPICAL ENABLING CONDITIONS
ItSpecificationItemMinimumMaximum
The monitor will run whenever the follow-
ing DTCs are not present.See page DI-361
ATF Temperature sensor ºAº circuit
ECT (Engine coolant temperature) sensor
circuitThere is no malfunction in the circuit shown on the left.
IAT (Intake air temperature) sensor circuit
Time after engine start18 min. and 20 sec. or more-
ECT-15°C (5°F) or more-
Driving distance after engine start9 km (6 mile) or more-
IAT (12 sec. after engine start)-20°C (-4°F) or more-
ECT (12 sec. after engine start)-20°C (-4°F) or more-
DIC30-01
Page 938 of 3115
- DIAGNOSTICSAUTOMATIC TRANSMISSION
DI-417
610 Author: Date:
2004 LAND CRUISER (RM1071U)
2 Check transmission fluid level (See page DI-361).
NG Add fluid.
OK
Replace the transmission wire (ATF tempera-
ture sensor).
Page 998 of 3115
- DIAGNOSTICSAUTOMATIC TRANSMISSION
DI-477
670 Author: Date:
2004 LAND CRUISER (RM1071U)
TYPICAL ENABLING CONDITIONS
ItSpecificationItemMinimumMaximum
[The following items are common to all conditions below: OFF malfunction (A) and (B)]
The monitor will run whenever the follow-
ing DTCs are not present.See page DI-361
Turbine speed sensor (NT) circuit
Output speed sensor (NO) circuit
Transmission Fluid Temperature Sensor
ºAº circuit
Shift solenoid ºAº (S1) circuit
Shift solenoid ºBº (S2) circuit
Shift solenoid ºEº (SR) circuitThere is no malfunction in the circuits shown on the left.
Pressure control solenoid ºAº (SL1) circuit
There is no malfunction in the circuits shown on the left.
Pressure control solenoid ºBº (SL2) circuit
Pressure control solenoid ºDº (SLT) circuit
ECT (Engine coolant temperature) sensor
circuit
KCS sensor circuit
ETCS (Electric throttle control system)Not system down
Transmission shift positionºDº
ECT40°C (104°F) or more-
Spark advance from Max. retard timing by
KCS control0° CA or more-
EngineRunning
Transfer rangeºHIGHº*1
ATF temperature10°C or more-
Transfer range ºHIGHº *1 (This condition is applied only 4WD)
*1 Following conditions met
Vehicle speed sensor ºAº circuitTh i lf ti i th i it h th l ft Output shaft speed sensor circuitThere is no malfunction in the circuits shown on the left.
Transfer output speed143 rpm or more-
NO/NOtf (Transfer input speed/Transfer
output speed)0.9 or moreLess than 1.1
TYPICAL MALFUNCTION THRESHOLDS
Detection criteriaThreshold
Summation of C1 clutch heat generations
= R (Turbine speed - Output speed x Temporary ratio)Specified value
Page 1004 of 3115
- DIAGNOSTICSAUTOMATIC TRANSMISSION
DI-483
676 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC P2740 Transmission Fluid Temperature Sensor ºBº
Circuit
DTC P2742 Transmission Fluid Temperature Sensor ºBº
Circuit Low Input
DTC P2743 Transmission Fluid Temperature Sensor ºBº
Circuit High Input
CIRCUIT DESCRIPTION
The ATF temperature sensor converts fluid temperature into a resistance value which is input in to the ECM.
ATF temperature sensor No.2 is on the transmission and just before the oil cooler inlet pipeline.
If ECM detects the abnormally high temperature of ATF by this sensor, it draws driver's attention by illuminat-
ing the warning lamp.
HINT:
The temperature of ATF easily raises when towing, climbing hills and in traffic, etc.
If the ATF temperature sensor No.2 shorts, the signal that indicates the ATF temperature is 150C
(302F) or higher is input in ECM.
Vehicle conditions when sensor is in normal and when the vehicle is in short are indicated in the table
below.
ATF temperature No.2 Sensor
StateDetection ConditionSymptomRecovery Condition
Sensor is normal
AT fluid temp. more than 150C
(302F).AT Oil Temp. warning light re-
mains onAT fluid temp. less than 135C
(275F). *1
Sensor is normalAT fluid temp. more than 130C
(266F).Shift point too high.AT fluid temp. less than 110C
(230F).
Sensor is in shortAny conditions.
AT Oil Temp. warning light re-
mains on
Shift point too high.
Symptoms still occur
HINT:
*1: When AT fluid temperature is in normal range, it decreases to less than 135C within 5 minutes with the
shift lever in P or N position in a idling state.
DTC No.DTC Detecting ConditionTrouble Area
P2740
(a) and (b) is detected momentary within 0.5 sec. when neither
P2742 or P2743 is not detected (1-trip detection logic)
(a) ATF temperature sensor resistance is less than 79 W.
(b) ATF temperature sensor resistance is more than 156 kW.
HINT:
Wthin 0.5 sec. the malfunction switches from (a) to (b) or from
(b) to (a)
Open or short in ATF temperature sensor No. 2 circuit
ATF temperature sensor No. 2
P2742ATF temperature sensor resistance is less than 79 W. for 0.5
sec. or more (1-trip detection logic)ECM
P2743
DTC is detected for 0.5 sec. or more (1-trip detection logic)
ATF temperature sensor resistance is more than 156 kW. after
started engine for 15 minutes or more
DIC33-01
Page 1005 of 3115
DI-484
- DIAGNOSTICSAUTOMATIC TRANSMISSION
677 Author: Date:
2004 LAND CRUISER (RM1071U)
MONITOR DESCRIPTION
The automatic transmission fluid (ATF) temperature sensor converts ATF temperature to an electrical resis-
tance value. Based on the resistance, the ECM determines the ATF temperature, and the ECM detects an
opens or shorts in the ATF temperature circuit. If the resistance value of the ATF temperature is less than
79 W or more than 156 kW, the ECM interprets this as a fault in the ATF sensor or wiring. The ECM will turn
on the MIL and store the DTC.
MONITOR STRATEGY
P2740ATF temperature sensor/Range check (Fluttering)
Related DTCsP2742ATF temperature sensor/Range check (Low resistance)Related DTCs
P2743ATF temperature sensor/Range check (High resistance)
Required sensors/ComponentsATF temperature sensor
Frequency of operationContinuous
Duration0.5 sec.
MIL operationImmediate
Sequence of operationNone
TYPICAL ENABLING CONDITIONS
ItSpecificationItemMinimumMaximum
The monitor will run whenever the follow-
ing DTCs are not present.See page DI-361
Range check (Fluttering, Low resistance)
The typical enabling condition is not avail-
able.-
Range check (High resistance)
Time after engine start15 min. or more-
TYPICAL MALFUNCTION THRESHOLDS
Detection criteriaThreshold
Range check (Fluttering)
ATF temperature sensor resistance
Less than 25 W
or
More than 156 kW
Range check (Low resistance)
ATF temperature sensor resistanceLess than 25 W
Range check (High resistance)
ATF temperature sensor resistanceMore than 156 kW
COMPONENT OPERATING RANGE
ParameterStandard value
ATF temperature sensorAtmospheric temperature to approx. 130°C (266°F)
Page 1019 of 3115
DI3BQ-04
- DIAGNOSTICSAUTOMATIC TRANSMISSION
DI-389
582 Author: Date:
2004 LAND CRUISER (RM1071U)
DIAGNOSTIC TROUBLE CODE CHART
If a DTC is displayed during the DTC check, check the circuit listed for that code in the table below and pro-
ceed to the page given.
*
1: ...MIL light up
DTC No.
(See Page)Detection ItemTrouble AreaMIL *1Memory
P0500
(DI-274)Vehicle Speed Sensor ºAº
Open or short in No. 1 vehicle speed sensor circuit
No. 1 vehicle speed sensor
Combination meter
ECM
P0705
(DI-402)Transmission Range Sensor Cir-
cuit Malfunction (PRNDL Input)Short in park/neutral position switch circuit
Park/neutral position switch
ECM
P0710
(DI-410)Transmission Fluid Temperature
Sensor ºAº CircuitOpen or short in ATF temperature sensor No.1 circuit
ATF temperature sensor No.1
ECM
P0711
(DI-415)Transmission Fluid Temperature
Sensor ºAº PerformanceATF temperature sensor No.1
ECM
P0712
(DI-410)Transmission Fluid Temperature
Sensor ºAº Circuit Low InputShort in ATF temperature sensor No.1 circuit
ATF temperature sensor No.1
ECM
P0713
(DI-410)Transmission Fluid Temperature
Sensor ºAº Circuit High InputOpen in ATF temperature sensor No.1 circuit
ATF temperature sensor No.1
ECM
P0717
(DI-418)Input Speed Sensor Circuit No
SignalOpen or short in speed sensor NT circuit
Speed sensor NT
ECM
P0722
(DI-421)Output Speed Sensor
Open or short in speed sensor SP2 circuit
Speed sensor SP2
ECM
P0724
(DI-424)Brake Switch ºBº Circuit High
Short in stop light switch circuit
Stop light switch
ECM
P0748
(DI-426)Pressure Control Solenoid ºAº
Electrical
(Shift Solenoid Valve SL1)Open or short in shift solenoid valve SL1 circuit
Shift solenoid valve SL1
ECM
P0751
(DI-433)Shift Solenoid ºAº Performance
(Shift Solenoid Valve S1)
Shift solenoid valve S1 is stuck open or closed
Valve body is blocked up or stuck
Shift solenoid valve S1
Automatic transmission assembly
ECM
P0756
(DI-437)Shift Solenoid ºBº Performance
(Shift Solenoid Valve S2)
Shift solenoid valve S2 is stuck open or closed
Valve body is blocked up or stuck
Shift solenoid valve S2
Automatic transmission assembly
ECM
P0771
(DI-441)Shift Solenoid ºEº Performance
(Shift Solenoid Valve SR)
Shift solenoid valve SR is stuck open or closed
Shift solenoid valve SL1 is stuck open or closed
Valve body is blocked up or stuck
Shift solenoid valve SR
Shift solenoid valve SL1
Automatic transmission assembly
ECM
Page 1020 of 3115
DI-390
- DIAGNOSTICSAUTOMATIC TRANSMISSION
583 Author: Date:
2004 LAND CRUISER (RM1071U)P0776
(DI-445)
Pressure Control Solenoid ºBº
Performance
(Shift Solenoid Valve SL2)
Shift solenoid valve SL2 is stuck open or closed
Valve body is blocked up or stuck
Shift solenoid valve SL2
Automatic transmission assembly
ECM
P0778
(DI-449)Pressure Control Solenoid ºBº
Electrical
(Shift Solenoid Valve SL2)Open or short in shift solenoid valve SL2 circuit
Shift solenoid valve SL2
ECM
P0781
(DI-453)1-2 Shift
Valve body is blocked up or stuck (1-2 shift valve)
Automatic transmission assembly
ECM
P0818
(DI-457)Driveline Disconnect Switch In-
put CircuitShort in transfer neutral position switch circuit
Transfer neutral position switch
ECM
P0850
(DI-402)Park/Neutral Switch Input Circuit
Short in park/neutral position switch circuit
Park/neutral position switch
ECM
P0973
(DI-460)Shift Solenoid ºAº Control Circuit
Low (Shift Solenoid Valve S1)Open or short in shift solenoid valve S1 circuit
Shift l id l S1
P0974
(DI-460)Shift Solenoid ºAº Control Circuit
High (Shift Solenoid Valve S1)Shift solenoid valve S1
ECM
P0976
(DI-464)Shift Solenoid ºBº Control Circuit
Low (Shift Solenoid Valve S2)Open or short in shift solenoid valve S2 circuit
Shift l id l S2
P0977
(DI-464)Shift Solenoid ºBº Control Circuit
High (Shift Solenoid Valve S2)Shift solenoid valve S2
ECM
P0985
(DI-468)Shift Solenoid ºEº Control Circuit
Low (Shift Solenoid Valve SR)Open or short in shift solenoid valve SR circuit
Shift l id l SR
P0986
(DI-468)Shift Solenoid ºEº Control Circuit
High (Shift Solenoid Valve SR)Shift solenoid valve SR
ECM
P1782
(DI-472)T/F L4 Range Position Switch
PerformanceShort in transfer L4 position switch circuit
Transfer L4 position switch
ECM
P2714
(DI-476)Pressure Control Solenoid ºDº
Performance
(Shift Solenoid Valve SLT)
Shift solenoid valve SLT is stuck open or closed
Valve body is blocked up or stuck
Shift solenoid valve SLT
Automatic transmission assembly
ECM
P2716
(DI-479)Pressure Control Solenoid ºDº
Electrical
(Shift Solenoid Valve SLT)Open or short in shift solenoid valve SLT circuit
Shift solenoid valve SLT
ECM
P2740
(DI-483)Transmission Fluid Temperature
Sensor ºBº CircuitOpen or short in ATF temperature sensor No. 2 circuit
ATF temperature sensor No. 2
ECM
P2742
(DI-483)Transmission Fluid Temperature
Sensor ºBº Circuit LowShort in ATF temperature sensor No. 2 circuit
ATF temperature sensor No. 2
ECM
P2743
(DI-483)Transmission Fluid Temperature
Sensor ºBº Circuit HighOpen in ATF temperature sensor No. 2 circuit
ATF temperature sensor No. 2
ECM
Page 1030 of 3115
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 OFFLock 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)
-
Page 1032 of 3115
DI-368
- DIAGNOSTICSAUTOMATIC TRANSMISSION
561 Author: Date:
AFSAir fuel ratio sensor
O2 sensorHeater oxygen sensor
Oxygen sensor pumping current circuitOxygen sensor output signal
Oxygen sensor reference ground circuitOxygen sensor signal ground
Accel position sensorAccelerator pedal position sensor
Throttle actuator control motor, Actuator control motor, Elec-
tronic throttle motor, Throttle control motorElectronic throttle actuator
Electronic throttle control system, Throttle actuator control
systemElectronic throttle control system
Throttle/pedal position sensor, Throttle/pedal position switch,
Throttle position sensor/switchThrottle position sensor
Turbo press sensorTurbocharger pressure sensor
Turbo VSVTurbocharger pressure control solenoid valve
P/S pressure switchPower-steering pressure switch
VSV for ACMActive control engine mount
Speed sensor, Vehicle speed sensor ºAº, Speed sensor for
skid control ECUVehicle speed sensor
ATF temperature sensor, Trans. fluid temp. sensor, ATF
temperature sensor ºAºTransmission fluid temperature sensor
Electronic controlled automatic transmission, ECTElectronically controlled automatic
Intermediate shaft speed sensor ºAºCounter gear speed sensor
Output speed sensorOutput shaft speed sensor
Input speed sensor, Input turbine speed sensor ºAº, Speed
sensor (NT), Turbine speed sensorInput turbine speed sensor
PNP switch, NSWPark/neutral position switch
Pressure control solenoidTransmission pressure control solenoid
Shift solenoidTransmission shift solenoid valve
Transmission control switch, Shift lock control unitShift lock control module
Engine immobilizer system, Immobilizer systemVehicle anti-theft system
Page 1040 of 3115
DI-376
- DIAGNOSTICSAUTOMATIC TRANSMISSION
569 Author: Date:
14. MECHANICAL SYSTEM TESTS
(a) Measure the stall speed.
The object of this test is to check the overall performance of the transmission and engine by measuring
the stall speeds in the D and R positions.
NOTICE:
Do the test at normal operating fluid temperature 70 to 80 °C (158 to 176 °F).
Do not continuously run this test longer than 5 seconds.
To ensure safety, conduct this test in a wide, clear level area which provides good traction.
The stall test should always be carried out in pairs. One technician should observe the condi-
tions of wheels or wheel stoppers outside the vehicle while the other is doing the test.
(1) Chock all 4 wheels.
(2) Connect an OBD II scan tool or hand-held tester to DLC3.
(3) Fully apply the parking brake.
(4) Keep your left foot pressing firmly on the brake pedal.
(5) Start the engine.
(6) Shift into the D position. Press all the way down on the accelerator pedal with your right foot.
Quickly read the stall speed at this time.
Stall speed: 2,150 ± 150 rpm
(7) Do the same test in R position.
Stall speed: 2,150 ± 150 rpm
Evaluation:
ProblemPossible cause
(a) Engine stall speed low in D and R positions
Engine output may be insufficient
Stator one-way clutch is not operating properly
HINT: If the value is less than the specified value by 600 rpm or
more, the torque converter could be faulty.
(b) Engine stall speed high in D position
Line pressure too low
Clutch No. 1 (C
1) slipping
One-way clutch No.3 (F
3) not operating properly
(c) Engine stall speed high in R position
Line pressure too low
Brake No. 4 (B
4) slipping
Clutch No. 3 (C
3) slipping
One-way clutch No.1 (F
1) not operating properly
(d) Engine stall speed high in D and R positionsLine pressure too low
Improper fluid level