Page 928 of 3115
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
Page 929 of 3115
D12645
NSSD
AT 4 NSSL
AT L
DI-408
- DIAGNOSTICSAUTOMATIC TRANSMISSION
601 Author: Date:
2004 LAND CRUISER (RM1071U)
2 Check transmission control switch.
PREPARATION:
(a) Connect the park/neutral position switch connector.
(b) Disconnect the shift lock control computer connector
(transmission control switch).
CHECK:
Check continuity between each terminal of shift lock control
computer (transmission control switch).
OK:
Shift positionTester connectionSpecified valve
D1 8 (NSSD AT4)No continuity
41 - 8 (NSSD - AT4)Continuity
26 12 (NSSL ATL)No continuity
L6 - 12 (NSSL - ATL)Continuity
NG Replace the transmission control switch
(See page AT-20).
OK
Page 930 of 3115
D11591
ON
E1(-)P(+)
R(+)
3(+)N(+) L(+)
4(+)D(+)
2(+)
NSW(+)
E5E6E7E8E9
- DIAGNOSTICSAUTOMATIC TRANSMISSION
DI-409
602 Author: Date:
2004 LAND CRUISER (RM1071U)
3 Measure voltage between each terminals of NSW, P, R, N, D, 4, 3, 2, L and E1 of
ECM.
PREPARATION:
(a) Connect the shift lock control computer connector (trans-
mission control switch).
(b) Turn the ignition switch ON.
CHECK:
Measure voltage between each terminals NSW, P, R, N, D, 4,
3, 2, L and E1 of ECM when the shift lever is shifted to the follow-
ing positions.
OK:
Tester connectionConditionSpecified condition
NSW B d dShift lever position: P and NBelow 1 VNSW - Body groundShift lever position: Except P and NBattery voltage
P- Body groundShift lever position: PBattery voltage
R - Body groundShift lever position: RBattery voltage*
N - Body groundShift lever position: NBattery voltage
D - Body groundShift lever position: D and 4Battery voltage
4 - Body groundShift lever position: 4Battery voltage
3 - Body groundShift lever position: 3Battery voltage
2 - Body groundShift lever position: 2 and LBattery voltage
L - Body groundShift lever position: LBattery voltage
HINT:
*: The voltage will drop slightly due to lighting up of the back up
light.
OK Check and replace the ECM (See page IN-36).
NG
Repair or replace the harness or connector
(See page IN-36).
Page 931 of 3115
DI-410
- DIAGNOSTICSAUTOMATIC TRANSMISSION
603 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC P0710 Transmission Fluid Temperature Sensor ºAº
Circuit
DTC P0712 Transmission Fluid Temperature Sensor ºAº
Circuit Low Input
DTC P0713 Transmission Fluid Temperature Sensor ºAº
Circuit High Input
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
P0710
(a) and (b) is detected momentary within 0.5 sec. when neither
P0712 or P0713 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:
Within 0.5 sec. the malfunction switches from (a) to (b) or from
(b) to (a)
Open or short in ATF temperature sensor No. 1 circuit
ATF temperature sensor No. 1
P0712ATF temperature sensor resistance is less than 79 W. for 0.5
sec. or more (1-trip detection logic)ECM
P0713
ATF temperature sensor resistance is more than 156 kW. 15
minutes or more after the engine start DTC is detected for 0.5
sec. or more (1-trip detection logic)
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
*1 or more than 156 kW*2, the ECM interprets this as a fault in the ATF sensor or wiring. The ECM will
turn on the MIL and store the DTC.
*1: 150C (302F) or more is indicated regardless of the actual ATF temperature.
*2: -40C (-40F) is indicated regardless of the actual ATF temperature.
HINT:
The ATF temperature can be checked on the OBD II scan tool or hand-held tester display.
DIC2Z-01
Page 932 of 3115
- DIAGNOSTICSAUTOMATIC TRANSMISSION
DI-41 1
604 Author: Date:
2004 LAND CRUISER (RM1071U)
MONITOR STRATEGY
P0710ATF temperature sensor/Range check (Fluttering)
Related DTCsP0712ATF temperature sensor/Range check (Low resistance)Related DTCs
P0713ATF 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 79 W
or
More than 156 kW
Range check (Low resistance)
ATF temperature sensor resistanceLess than 79 W
Range check (High resistance)
ATF temperature sensor resistanceMore than 156 kW
COMPONENT OPERATING RANGE
ParameterStandard value
ATF temperature sensor resistanceAtmospheric temperature to approx. 130°C (266°F)
Page 933 of 3115
D12759
Electronically Controlled
Transmission Solenoid
THO1
Y
1 2
E2ECM
4
28 E1
G-Y
11
10
9THO2
E5 E6E6
L
BR-W Y OO
G-Y
L
BR-W
If1 EB2EB2
OT+
OT2+ OT-
OT2-
EB3 BR-W BR-W BR-W
32432 DI-412
- DIAGNOSTICSAUTOMATIC TRANSMISSION
605 Author: Date:
2004 LAND CRUISER (RM1071U)
WIRING DIAGRAM
Page 934 of 3115
1
152 3 4 5 6 7 8
9 10 11 12
13 14
D11994OT+OT-
- DIAGNOSTICSAUTOMATIC TRANSMISSION
DI-413
606 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
AT FLUID TEMP
ATF Temp. Sensor No.1 Value/
min.: -40°C (-40°F)
max.: 215°C (419°F)80°C (176°F)
(After Stall Test)
If the value is º-40°C (-40°F)º or
º215°C (419°F)º, ATF temp. sen-
sor No. 1 circuit is opened or
shorted.
HINT:
When DTC P0712 is output and OBD ll scan tool or hand-held tester output is 150°C (302°F), there is a
short circuit.
Measure the resistance between THO1 (THO) and body ground.
Temperature DisplayedMalfunction
-40°C (-40°F)Open circuit
150°C (302°F) or moreShort circuit
1 Check transmission wire.
PREPARATION:
Disconnect the transmission wire connector from the transmis-
sion.
CHECK:
Measure the resistance between terminals OT+ and OT-.
OK:
79 W to 156 kW
CHECK:
Measure resistance between terminals OT+ and OT- of the
transmission wire connector and body ground.
OK:
Resistance: 1 MW or higher
NG Replace the transmission wire (ATF tempera-
ture sensor).
OK
Page 935 of 3115
D12792
THO1
E2
E5E6E7E8E9
DI-414
- DIAGNOSTICSAUTOMATIC TRANSMISSION
607 Author: Date:
2004 LAND CRUISER (RM1071U)
2 Measure resistance between terminal THO1 and E2 of ECM connector.
PREPARATION:
(a) Connect the transmission wire connector.
(b) Disconnect the connector of the ECM.
CHECK:
Measure the resistance between terminals THO1 and E2.
OK:
79 W to 156 kW
CHECK:
Measure resistance between terminals THO1 and E2 of the
ECM connector and body ground.
OK:
Resistance: 1 MW or higher
NG Repair or replace the harness or connector
(See page IN-36).
OK
Check and replace the ECM (See page
IN-36).
