1998 TOYOTA LAND CRUISER Factory Repair Manual

manual transmission height adjustment key battery steering wheel trunk gas type

Page 993 of 3115

TOYOTA LAND CRUISER 1998 Factory Repair Manual DI-472
- DIAGNOSTICSAUTOMATIC TRANSMISSION
665 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC P1782 T/F L4 Range Position Switch Performance
CIRCUIT DESCRIPTION
The ECM detects the signal from the

DI-472
- DIAGNOSTICSAUTOMATIC TRANSMISSION
665 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC P1782 T/F L4 Range Position Switch Performance
CIRCUIT DESCRIPTION
The ECM detects the signal from the transfer L4 position switch.
This DTC indicates that the transfer L4 position switch remains ON.
DTC No.DTC Detecting ConditionTrouble Area
P1782
Transfer L4 position switch remains ON while vehicle running
under conditions for 18 seconds or more (1-trip detection log-
ic)
(a) Output shaft speed 3000 rpm or less
(b) Transfer shift position is H
Short in transfer L4 position switch circuit
Transfer L4 position switch
ECM
MONITOR DESCRIPTION
The ECM monitors the transfer-case L4 position switch to determine when the transfer-case L4 gear is en-
gaged. If the transfer-case L4 gears remain engaged under the following conditions, the ECM will conclude
that there is a malfunction of the L4 position switch:
L4 switch indicated that the L4 transfer-case gears are engaged.
Transfer-case shifter is in the ºHº position.
Transfer-case output shaft rpm is between 750 and 3,000 rpm.
The specified time period has elapsed.
If all of the above conditions are detected, the ECM will conclude that there is a malfunction of the L4 switch,
illuminate the MIL and store the DTC.
MONITOR STRATEGY
Related DTCsP1782Transfer L4 position switch/ON malfunction
Required sensors/ComponentsTransfer L4 position switch
Frequency of operationContinuous
DtiON malfunction (A)1.8 sec.DurationON malfunction (B)0.5 sec.
MIL operation2 driving cycles
Sequence of operationNone
TYPICAL ENABLING CONDITIONS
ItSpecificationItemMinimumMaximum
The following items are common to all conditions below: ON malfunction (A) and (B)
The monitor will run whenever the follow-
ing DTCs are not present.See page DI-361
Output speed sensor circuitTh i lf ti i th i it h th l ftVehicle speed sensor ºAº circuitThere is no malfunction in the circuits shown on the left.
Transfer neutral position switchOFF
ON malfunction (A)
Output speed (Transfer output speed)1,000 rpm or moreLess than 3,000 rpm
ON malfunction (B)
Output speed (Transfer output speed)143 rpm or more-
DICEA-01

Page 994 of 3115

TOYOTA LAND CRUISER 1998 Factory Repair Manual - DIAGNOSTICSAUTOMATIC TRANSMISSION
DI-473
666 Author: Date:
2004 LAND CRUISER (RM1071U)
TYPICAL MALFUNCTION THRESHOLDS
Detection criteriaThreshold
Both of the following conditions is met: ON malf

Page 995 of 3115

TOYOTA LAND CRUISER 1998 Factory Repair Manual D12765
ECM
L4 4
E8 EB1 6CJ/B No. 6
115 D5
Detection SW
(Transfer L Position)
J/B No. 3
ALT
II R-LB-L
1
26D31
R-LB-L
EB1B-L 3 11
IN2Ib2 14 6
R-L
R-L3
1
39 3E
3C
3Q
1 23
5 IG1 No. 3 RelayGAUGE2 Cowl S

Page 996 of 3115

TOYOTA LAND CRUISER 1998 Factory Repair Manual D02665
OFF-ON27±0.82mm Ball
- DIAGNOSTICSAUTOMATIC TRANSMISSION
DI-475
668 Author: Date:
2004 LAND CRUISER (RM1071U)
INSPECTION PROCEDURE
1 Check transfer L4 position switch.
PREPARATION:
Remove

Page 997 of 3115

TOYOTA LAND CRUISER 1998 Factory Repair Manual D01769
DI-476
- DIAGNOSTICSAUTOMATIC TRANSMISSION
669 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC P2714 Pressure Control Solenoid ºDº Performance
(Shift Solenoid Valve SLT)
SYSTEM DESCRIPTION

D01769
DI-476
- DIAGNOSTICSAUTOMATIC TRANSMISSION
669 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC P2714 Pressure Control Solenoid ºDº Performance
(Shift Solenoid Valve SLT)
SYSTEM DESCRIPTION
The ECM calculates the shifting condition by using the signals
from the vehicle speed sensor, throttle position sensor, etc..
And compares this result with the signal that ECM sends to SLT
to detect mechanical trouble of the shift solenoid valve SLT,
valve body, torque converter clutch and automatic transmission
assembly (clutch, brake or gear etc.).
DTC No.DTC Detecting ConditionTrouble Area
P2714
ECM detects a malfunction on SLT (ON side) according to the
revolution difference of the turbine and the output shaft, and
also by the oil pressure.Shift solenoid valve SLT is stuck open or closed
Valve body blocked up or stuck
Automatic transmission assembly
MONITOR DESCRIPTION
The ECM sends (ED: delete ºtheº) signals (Duty Ratio) to the shift solenoid valve SLT based on the informa-
tion such as the signal from throttle position sensor and the vehicle speed sensor.
Based on the signal's duty-ratio, the shift solenoid valve SLT adjusts the hydraulic pressure to the primary
regulator valve to an appropriate level. This function enables a smooth vehicle operation by adjusting the
line hydraulic pressure to match the engine output and running condition.
The ECM calculates the ºactualº transmission gear by comparing the signals from the input speed sensor
and the output speed sensor. The ECM can detect many mechanical problems in the shift solenoids, valve
body, and the transmission clutches, brakes, and gears. If the ECM detects that the actual gear position and
the commanded gear position are different, it will illuminate the MIL and store the DTC.
MONITOR STRATEGY
Related DTCsP2714Shift solenoid valve SLT/ON malfunction
MainShift solenoid valve SLT
Required sensors/ComponentsSubValve body, ATF temperature sensor, Speed sensor (NT), Speed sensor
(NO)
Frequency of operationContinuous
DurationImmediate
MIL operation2 driving cycles
Sequence of operationNone
DIB3J-02

Page 998 of 3115

TOYOTA LAND CRUISER 1998 Factory Repair Manual - DIAGNOSTICSAUTOMATIC TRANSMISSION
DI-477
670 Author: Date:
2004 LAND CRUISER (RM1071U)
TYPICAL ENABLING CONDITIONS
ItSpecificationItemMinimumMaximum
[The following items are common to all condit

Page 999 of 3115

TOYOTA LAND CRUISER 1998 Factory Repair Manual D11987
2
1
DI-478
- DIAGNOSTICSAUTOMATIC TRANSMISSION
671 Author: Date:
2004 LAND CRUISER (RM1071U)
INSPECTION PROCEDURE
1 Check shift solenoid valve SLT operation.
PREPARATION:
(a) Jack up the ve

Page 1000 of 3115

TOYOTA LAND CRUISER 1998 Factory Repair Manual D02290
Line Pressure
Control Pressure
Current Flow to Solenoid
BE4056
ON
OFF
1 cycle
Duty Ratio =
A + B
A
x 100 (%)
- DIAGNOSTICSAUTOMATIC TRANSMISSION
DI-479
672 Author: Date:
2004 LAND CRUISER (

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