4WD TOYOTA LAND CRUISER 1986 Factory Repair Manual
[x] Cancel search | Manufacturer: TOYOTA, Model Year: 1986, Model line: LAND CRUISER, Model: TOYOTA LAND CRUISER 1986Pages: 3115, PDF Size: 54.88 MB
Page 215 of 3115
BE-64
- BODY ELECTRICALCOMBINATION METER
2437 Author: Date:
C13 1 1 (CHECK E/G) G dIgnition switch ON and engine is stoppedBelow 1 VC13-1 1 (CHECK E/G) - GroundIgnition switch ON and engine is running10 - 14 V
C13-14 (CTR DIFF/4WD) - GroundIgnition switch ON and
center diff. lock switch OFFBelow 1 V
C13-14 (CTR DIFF/4WD) - GroundIgnition switch ON and
center diff. lock switch ON10 - 14 V
C13 15 (SLIP) G dIG switch ON, SLIP warning light ONBelow 1.5 VC13-15 (SLIP) - GroundIG switch ON, SLIP warning light OFF10 - 14 V
C13 16 (VSC TRC) G dIG switch ON, VSC TRC indicator light ONBelow 1.5 VC13-16 (VSC TRC) - GroundIG switch ON, VSC TRC indicator light OFF10 - 14 V
C13 17 (VSC OFF) G dIG switch ON, VSC OFF indicator light ONBelow 1.5 VC13-17 (VSC OFF) - GroundIG switch ON, VSC OFF indicator light OFF10 - 14 V
C13 18 (ACTIVE TRC) G dIG switch ON, TRC OFF indicator light ONBelow 1.5 VC13-18 (ACTIVE TRC) - GroundIG switch ON, TRC OFF indicator light OFF10 - 14 V
C13 19 (RSCA OFF) G dIG switch ON, RSCA warning light ONBelow 2.0 VC13-19 (RSCA OFF) - GroundIG switch ON, RSCA warning light OFF10 - 14 V
C14-4 (AIR BAG-) - GroundIgnition switch ON and
SRS indicator light lights upBelow 1 V
C14-4 (AIR BAG-) - GroundIgnition switch ON and
SRS indicator does not light up10 - 14 V
C14 7 (OIL PRS SDR) G dIgnition switch ON and indicator ONBelow 1 VC14-7 (OIL PRS SDR) - GroundIgnition switch ON and indicator OFF10 - 14 V
C14-10 (T/M PULSE) - GroundEngine is RunningPulse generation
C14 1 1 (D BKL SW) G dIgnition switch ON and seat belt is unfastened10 - 14 VC14-1 1 (D-BKL SW) - GroundIgnition switch ON and seat belt is fastenedBelow 1 V
C14 18 (PKB SW) G d
Ignition switch ON and
parking brake lever is pulledBelow 1 V
C14-18 (PKB SW) - GroundIgnition switch ON and
parking brake lever is released10 - 14 V
C14 20 (BRAKE) G d
Ignition switch ON and brake system indicator
ONBelow 1 V
C14-20 (BRAKE) - GroundIgnition switch ON and brake system indicator
OFF10 - 14 V
C15-1 (E/G EARTH) - GroundConstantContinuity
C15-2 (MAIN FE) - GroundConstantContinuity
C15-4 (MAIN FV) - GroundIgnition switch ON4.5 - 5.5 V
C15 6 (MAIN FR) G d
Ignition switch ON and
fuel sender gauge float UPApprox. 0.5 V
C15-6 (MAIN FR) - GroundIgnition switch ON and
fuel sender gauge float DOWNApprox. 5.5 V
C15 7 (ILL ) G d
Ignition switch ON and
light control rheostat volume minimumBelow 1 V
C15-7 (ILL-) - GroundIgnition switch ON and
light control rheostat volume maximum10 - 14 V
Key unlock warning switch ON (Key is inserted)Below 1 V
C15-9 (KEY SW) - GroundKey unlock warning switch OFF
(Key is removed)10 - 14 V
Page 341 of 3115
BE-8
- BODY ELECTRICALTROUBLESHOOTING
2381 Author: Date:
2004 LAND CRUISER (RM1071U) ECT PWR indicator light does not light up.
1. LED
2. ECT Pattern Select Switch
3. Combination Meter
4. Wire Harness
5. ECT System-
-
BE-58
-
DI-358
2nd start ETCS indicator light does not light up.
1. LED
2. Combination Meter
3. Wire Harness
4. ECM-
BE-58
-
DI-1
Center Diff. lock indicator light does not light up.
1. LED
2. Combination Meter
3. Transfer 4WD Position Detection Switch
4. Wire Harness-
BE-58
TR-49
-
Indicator lights do not light up. (Except Turn, Hi-beam and
security)1. GAUGE2 Fuse
2. Wire Harness-
-
DEFOGGER SYSTEM:
SymptomSuspect AreaSee page
All defogger systems do not operate.
1. DEFOG Fuse
2. DEFOG Relay
3. Defogger Switch (Integration Control Panel Assembly)
4. Wire Harness-
-
BE-75
-
Rear window defogger does not operate.
1. Defogger Wire
2. Choke Coil
3. Wire HarnessBE-75
-
-
Mirror defogger does not operate.
1. MIR HTR Fuse
2. Engine Room J/B Relay Circuit
3. Mirror Defogger
4. Wire Harness-
BE-15
BE-75
-
POWER WINDOW CONTROL SYSTEM:
This system uses the multiplex communication system, so check diagnosis system of the multiplex commu-
nication system before you proceed with troubleshooting.
SymptomSuspect AreaSee page
All the power windows do not operate.
(Power Door Lock System is normal.)1. P/W (FL, FR, RL, RR) Fuse
2. Power Window Master Switch
3. Wire Harness-
BE-79
-
Only the driver's window does not operate.
1. Power Window Master Switch
2. Body ECU
3. Power Window Motor
4. Wire HarnessBE-79
DI-1038
BE-79
-
ºWindow lock functionº does not operate.1. Power Window Master SwitchBE-79
POWER DOOR LOCK CONTROL SYSTEM:
This system uses the body control system, so check diagnosis system of the body control system before
you proceed with troubleshooting.
SymptomSuspect AreaSee page
All the doors cannot be locked or unlocked.
(Power Window Control System is normal.)
1. DOOR Fuse
2. Door Lock Control Switch
3. Wire Harness
4. Body ECU-
BE-88
-
DI-1038
Only one side door lock control does not operate.1. Door Lock Motor
2. Wire HarnessBE-88
-
Page 614 of 3115
ABS Antilock Brake System
A/C Air Conditioner
assy assembly
ECT Electronic Controlled Transmission
ECU Electronic Control Unit
e.g. Exempli Gratia (for Example)
Ex. Except
4WD Four Wheel Drive Vehicles
in. inch
LH Left-hand
LHD Left-hand Drive
MIG Metal Inert Gas
M/Y Model Year
PPS Progressive Power Steering
RH Right-hand
RHD Right-hand Drive
SRS Supplemental Restraint System
SSM Special Service Materials
w/ with
w/o without
5. ECU (ELECTRONIC CONTROL UNIT)
Many ECUs are mounted in this vehicle.
Take the following precautions during body repair to prevent damage to the ECUs.
Before starting electric welding operations, disconnect the negative (-) terminal cable from the battery.
When the negative (-) terminal cable is disconnected from the battery, memory of the clock and audio
systems will be cancelled. So before starting work, make a record of the contents memorized by each
memory system. Then when work is finished, reset the clock and audio systems as before.
When the vehicle has tilt and telescopic steering, power seat and outside rear view mirror, which are all
equipped with memory function, it is not possible to make a record of the memory contents. So when the
operation is finished, it will be necessary to explain this fact to the customer, and request the customer to
adjust the features and reset the memory.
Do not expose the ECUs to ambient temperatures above 80°C (176°F).
NOTICE: If it is possible the ambient temperature may reach 80° (176°F) or more, remove the ECUs
from the vehicle before starting work.
Be careful not to drop the ECUs and not to apply physical shocks to them.
ABBREVIATIONS USED IN THIS MANUAL
For convenience, the following abbreviations are used in this
manual.
INTRODUCTIONIN-9
Page 942 of 3115
D11986
D13175Speed Sensor SP2
Parking Gear (Timing Rotor)
- DIAGNOSTICSAUTOMATIC TRANSMISSION
DI-421
614 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC P0722 Output Speed Sensor Circuit No Signal
CIRCUIT DESCRIPTION
The speed sensor SP2 detects the rotation speed of the trans-
mission output shaft and sends signals to the ECM. The ECM
determines the vehicle speed based on these signals. An AC
voltage is generated in the speed sensor SP2 coil as the park-
ing gear mounted on the rear planetary gear assy rotates, and
this voltage is sent to the ECM. The parking gear on the rear
planetary gear is used as the timing rotor for this sensor.
The gear shift point and lock-up timing are controlled by the
ECM based on the signals from this vehicle speed sensor and
the throttle position sensor signal. If the speed sensor SP2 mal-
functions, the ECM uses input signals from the speed sensor
NT as a back-up signal.
DTC No.DTC Detection ConditionTrouble Area
P0722
All conditions below are detected 500 times or more continu-
ously (1-trip detection logic)
(a) No signal from speed sensor SP2 is input to ECM while 4
pulses of No. 1 vehicle speed sensor signal are sent
(b) Vehicle speed is 9 km/h (6 mph) or more for at least 4 sec.
(c) Park/neutral position switch is OFF.
(d) Transfer position is except neutral (4WD).
Open or short in speed sensor SP2 circuit
Speed sensor SP2
ECM
MONITOR DESCRIPTION
The output speed sensor monitors the output shaft speed. The ECM controls the gearshift point and the lock
up timing based on the signals from the output speed sensor and throttle position sensor.
If the ECM detects no signal from the output shaft speed sensor even while the vehicle is moving, it will con-
clude that is a malfunction of the output speed sensor. The ECM will illuminate the MIL and store the DTC.
MONITOR STRATEGY
Related DTCsP0722Speed sensor SP2/Verify pulse input
Required sensors/ComponentsSpeed sensor SP2
Frequency of operationContinuous
Duration500 output shaft revolution
MIL operationImmediate
Sequence of operationNone
DIB36-02
Page 955 of 3115
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 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 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 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 975 of 3115
DI-454
- DIAGNOSTICSAUTOMATIC TRANSMISSION
647 Author: Date:
2004 LAND CRUISER (RM1071U)
TYPICAL ENABLING CONDITIONS
ItSpecificationItemMinimumMaximum
The Following items are common to all conditions below: Condition (A), (B), (C) and (D)
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
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
Condition (A)
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)-
Condition (B)
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)-
Condition (C)
Current ECM selected gear5th
Last ECM selected gear4th
Vehicle speed
(During transition from 4th to 5th gear)-Less than 100 km/h (62 mph)
Condition (D)
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