1998 TOYOTA LAND CRUISER sensor
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DI-434
- DIAGNOSTICSAUTOMATIC TRANSMISSION
627 Author: Date:
2004 LAND CRUISER (RM1071U) Turbine speed sensor (NT) circuit
Output speed sensor (NO) 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 leftPressure control solenoid ºAº (SL1) circuitThere is no malfunction in the circuits shown on the left.
Pressure control solenoid ºBº (SL2) 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
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
OFF malfunction (A)
ECM selected gear1st
Vehicle speed2 km/h (1 mph) or moreLess than 40 km/h (25 mph)
Throttle valve opening angle
8% or more and
6.5% or more at 2,000 rpm
(conditions vary with engine speed)
-
OFF malfunction (B)
Current ECM selected gear5th
Last ECM selected gear4th
Continuous time for ECM selecting 4th
gear2 sec. or more-
Actual gear when ECM selected 4th gear4th
OFF malfunction (C)
Current ECM selected gear5th
Last ECM selected gear4th
ON malfunction (A)
ECM selected gear1st
Vehicle speed2 km/h (1 mph) or moreLess than 40 km/h (25 mph)
Throttle valve opening angle6.5% or more at 2,000 rpm
(conditions vary with engine speed)-
ON malfunction (B)
ECM selected gear4th
Vehicle speed2 km/h (1 mph) or more-
Page 958 of 3115
- DIAGNOSTICSAUTOMATIC TRANSMISSION
DI-437
630 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC P0756 Shift Solenoid ºBº Performance
(Shift Solenoid Valve S2)
SYSTEM DESCRIPTION
The ECM uses signals from the vehicle speed sensor and direct clutch speed sensor to detect the actual
gear position (1st, 2nd, 3rd, 4th or 5th gear). Then the ECM compares the actual gear with the shift schedule
in the ECM memory to detect mechanical problems of the shift solenoid valves, valve body or automatic
transmission (clutch, brake or gear etc.).
DTC No.DTC Detecting ConditionTrouble Area
P0756The gear required by the ECM does not match the actual gear
when driving (2-trip detection logic)Shift solenoid valve S2 is stuck open or closed
Valve body is blocked up or stuck
Automatic transmission (clutch, brake or gear etc.)
MONITOR DESCRIPTION
The ECM commands gear shifts by turning the shift solenoid valves ºON/OFFº. According to the input shaft
revolution and output shaft revolution, the ECM detects the actual gear position (1st, 2nd, 3rd, 4th or 5th
gear position). When the gear position commanded by the ECM and the actual gear position are not same,
the ECM illuminates the MIL.
MONITOR STRATEGY
RltdDTCP0756Shift solenoid valve S2/OFF malfunctionRelated DTCsP0756Shift solenoid valve S2/ON malfunction
MainShift solenoid valve S2
Required sensors/ComponentsSubVehicle speed sensor, Throttle position sensor, Speed sensor (NT), Speed
sensor (NO)
Frequency of operationContinuous
OFF malfunction (A), (B), (C)0.4 sec.
OFF malfunction (D)Immediate
DurationON malfunction (A) and (B)0.4 sec.Duration
ON malfunction (C)3 sec.
ON malfunction (D)0.5 sec.
MIL operation2 driving cycles
Sequence of operationNone
TYPICAL ENABLING CONDITIONS
ItSpecificationItemMinimumMaximum
The following conditions are common to all conditions below:
OFF malfunction (A), (B), (C), (D) and ON malfunction (A), (B), (C), (D)
The monitor will run whenever the follow-
ing DTCs are not present.See page DI-361
DIC32-01
Page 959 of 3115
DI-438
- DIAGNOSTICSAUTOMATIC TRANSMISSION
631 Author: Date:
2004 LAND CRUISER (RM1071U) Turbine speed sensor (NT) circuit
Output speed sensor (NO) 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 leftPressure control solenoid ºAº (SL1) circuitThere is no malfunction in the circuits shown on the left.
Pressure control solenoid ºBº (SL2) 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
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
OFF malfunction (A)
ECM selected gear1st
Vehicle speed2 km/h (1 mph) or moreLess than 40 km/h (25 mph)
Throttle valve opening angle6.5% or more at 2,000 rpm
(conditions vary with engine speed)-
OFF malfunction (B)
ECM selected gear2nd
Vehicle speed2 km/h (1 mph) or more-
Output speed2nd " 1st down shift point or more-
Throttle valve opening angle6.5% or more at 2,000 rpm
(conditions vary with engine speed)-
OFF malfunction (C)
Current ECM selected gear5th
Last ECM selected gear4th
Continuous time for ECM selecting 4th
gear2 sec. or more-
Actual gear when ECM selected 4th gear4th
OFF malfunction (D)
Current ECM selected gear5th
Last ECM selected gear4th
ON malfunction (A)
ECM selected gear1st
Vehicle speed2 km/h (1 mph) or moreLess than 40 km/h (25 mph)
Page 962 of 3115
- DIAGNOSTICSAUTOMATIC TRANSMISSION
DI-441
634 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC P0771 Shift Solenoid ºEº Performance
(Shift Solenoid Valve SR)
SYSTEM DESCRIPTION
The ECM uses signals from the vehicle speed sensor and direct clutch speed sensor to detect the actual
gear position (1st, 2nd, 3rd, 4th or 5th gear). Then the ECM compares the actual gear with the shift schedule
in the ECM memory to detect mechanical problems of the shift solenoid valves, valve body or automatic
transmission (clutch, brake or gear etc.).
DTC No.DTC Detecting ConditionTrouble Area
P0771The gear required by the ECM does not match the actual gear
when driving (2-trip detection logic)
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
Automatic transmission (clutch, brake or gear etc.)
MONITOR DESCRIPTION
The ECM commands gear shifts by turning the shift solenoid valves ºON/OFFº. According to the input shaft
revolution and output shaft revolution, the ECM detects the actual gear position (1st, 2nd, 3rd, 4th or 5th
gear position). When the gear position commanded by the ECM and the actual gear position are not same,
the ECM illuminates the MIL and stores the DTC.
MONITOR STRATEGY
Related DTCsP0771Shift solenoid valve SR/Rationality check
Rid /C tMainShift solenoid valve SRRequired sensors/ComponentsSubSpeed sensor (NT), Speed sensor (NO), Crankshaft position sensor (NE)
Frequency of operationContinuous
OFF malfunction (A)0.4 sec.
DurationOFF malfunction (B) and (C)ImmediateDuration
ON malfunction0.15 sec.
MIL operation2 driving cycles
Sequence of operationNone
TYPICAL ENABLING CONDITIONS
ItSpecificationItemMinimumMaximum
The following items are common to all condition below: OFF malfunction (A), (B), (C) and ON malfunction
The monitor will run whenever the follow-
ing DTCs are not present.See page DI-361
DIB3A-02
Page 963 of 3115
DI-442
- DIAGNOSTICSAUTOMATIC TRANSMISSION
635 Author: Date:
2004 LAND CRUISER (RM1071U) Turbine speed sensor (NT) circuit
Output speed sensor (NO) 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 leftPressure control solenoid ºAº (SL1) circuitThere is no malfunction in the circuits shown on the left.
Pressure control solenoid ºBº (SL2) 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
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
OFF malfunction (A)
ECM selected gear5th
Vehicle speed2 km/h (1 mph)-
Throttle valve opening angle6.5% or more at 2,000 rpm
(conditions vary with engine speed)-
OFF malfunction (B)
Current ECM selected gear5th
Last ECM selected gear4th
Continuous time for ECM selecting 4th
gear2 sec. or more-
OFF malfunction (C)
Current ECM selected gear5th
Last ECM selected gear4th
ON malfunction
Current ECM selected gear2th
Last ECM selected gear1st
Throttle valve opening angle
(During transition from 1st to 2nd gear)4.5% or more at 2,000 rpm
(conditions vary with turbine speed)-
TYPICAL MALFUNCTION THRESHOLDS
Detection criteriaThreshold
[OFF malfunction]
All of the following conditions are met: OFF malfunction (A), (B) and (C)
Page 966 of 3115
- DIAGNOSTICSAUTOMATIC TRANSMISSION
DI-445
638 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC P0776 Pressure Control Solenoid ºBº Performance
(Shift Solenoid Valve SL2)
SYSTEM DESCRIPTION
The ECM uses signals from the vehicle speed sensor and direct clutch speed sensor to detect the actual
gear position (1st, 2nd, 3rd, 4th or 5th gear). Then the ECM compares the actual gear with the shift schedule
in the ECM memory to detect mechanical problems of the shift solenoid valves, valve body or automatic
transmission (clutch, brake or gear etc.).
DTC No.DTC Detecting ConditionTrouble Area
P0776The gear required by the ECM does not match the actual gear
when driving (2-trip detection logic)Shift solenoid valve SL2 is stuck open or closed
Valve body is blocked up or stuck
Automatic transmission (clutch, brake or gear etc.)
MONITOR DESCRIPTION
The ECM commands gear shifts by turning the shift solenoid valves ºON/OFFº. According to the input shaft
revolution and output shaft revolution, the ECM detects the actual gear position (1st, 2nd, 3rd, 4th or 5th
gear position). When the gear position commanded by the ECM and the actual gear position are not same,
the ECM illuminates the MIL and stores the DTC.
MONITOR STRATEGY
Related DTCsP0776Shift solenoid valve SL2/ON malfunction
Rid /C tMainShift solenoid valve SL2Required sensors/ComponentsSubSpeed sensor (NT), Speed sensor (NO), Crankshaft position sensor (NE)
Frequency of operationContinuous
ON malfunction (A), (B) and
(C)0.4 sec.
DurationON malfunction (D)3 sec.
ON malfunction (E)0.5 sec.
MIL operation2 driving cycles
Sequence of operationNone
DIB3B-02
Page 967 of 3115
DI-446
- DIAGNOSTICSAUTOMATIC TRANSMISSION
639 Author: Date:
2004 LAND CRUISER (RM1071U)
TYPICAL ENABLING CONDITIONS
ItSpecificationItemMinimumMaximum
The following items are common to all condition below: ON malfunction (A), (B), (C), (D) and (E)
The monitor will run whenever the follow-
ing DTCs are not present.See page DI-361
Turbine speed sensor (NT) circuit
Output speed sensor (N) 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 leftPressure control solenoid ºAº (SL1) circuitThere is no malfunction in the circuits shown on the left.
Pressure control solenoid ºBº (SL2) 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
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
ON malfunction (A)
ECM selected gear1st
Vehicle speed2 km/h (1 mph) or moreLess than 40 km/h (25 mph)
Throttle valve opening angle6.5% or more at 2,000 rpm
(conditions vary with engine speed)-
ON malfunction (B)
ECM selected gear3rd
Vehicle speed2 km/h (1 mph)-
Throttle valve opening angle6.5% or more at 2,000 rpm
(conditions vary with engine speed)-
ON malfunction (C)
ECM selected gear4th
Vehicle speed2 km/h (1 mph) or more-
Throttle valve opening angle6.5% or more at 2,000 rpm
(conditions vary with engine speed)-
ON malfunction (D)
Current ECM selected gear5th
Page 970 of 3115
- DIAGNOSTICSAUTOMATIC TRANSMISSION
DI-449
642 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC P0778 Pressure Control Solenoid ºBº Electrical
(Shift Solenoid Valve SL2)
CIRCUIT DESCRIPTION
See page DI-426.
DTC No.DTC Detection ConditionTrouble Area
P0778
ECM checks for an open or short circuit in shift solenoid valves
SL2 (1-trip detection logic)
(a) When solenoid is energized, duty ratio exceed 75%
(b) When solenoid is not energized, duty ratio is less than 3%Open or short in shift solenoid valve SL2 circuit
Shift solenoid valve SL2
ECM
MONITOR DESCRIPTION
The ECM commands gearshift by turning the shift solenoid valves ºON/OFFº. When there is an open or short
circuit in any shift solenoid valve circuit, the ECM detects the problem and illuminates the MIL and stores
the DTC. And the ECM performs the fail-safe function and turns the other shift solenoid valves in good condi-
tion ºON/OFFº (In case of an open or short circuit, the ECM stops sending current to the circuit.) (see page
DI-426).
MONITOR STRATEGY
Related DTCsP0778Shift solenoid valve SL2/Range check
Required sensors/ComponentsShift solenoid valve SL2
Frequency of operationContinuous
Duration1 sec.
MIL operation1 driving cycle
Sequence of operationNone
TYPICAL ENABLING CONDITIONS
ItSpecificationItemMinimumMaximum
The monitor will run whenever the follow-
ing DTCs are not present.See page DI-361
Battery voltage10 V or more-
TYPICAL MALFUNCTION THRESHOLDS
Detection criteriaThreshold
Output signal duty100%
COMPONENT OPERATING RANGE
ParameterStandard value
Output signal dutyLess than 100%
DIB3C-02