Position TOYOTA LAND CRUISER 1996 J80 Workshop Manual

IN0253
WRONGCORRECT
IN0252
WRONGCORRECT
IN−6
−
INTRODUCTION REPAIR INSTRUCTIONS
6
Author: Date:
1996 LAND CRUISER (RM451U)
(k) Care must be taken when jacking up and supporting the
vehicle. Be sure to lift and support the vehicle at the prop-
er locations (See page IN−8).
Cancel the parking brake on the level place and
shift the transmission in Neutral (or N position).
When jacking up the front wheels of the vehicle at
first place stoppers behind the rear wheels.
When jacking up the rear wheels of the vehicle at
first place stoppers before the front wheels.
When either the front or rear wheels only should be
jacked up, set rigid racks and place stoppers in front
and behind the other wheels on the ground.
After the vehicle is jacked up, be sure to support it
on rigid racks . It is extremely dangerous to do any
work on a vehicle raised on a jack alone, even for
a small job that can be finished quickly.
(l) Observe the following precautions to avoid damage to the
following parts:
(1) Do not open the cover or case of the ECU unless absolutely necessary. (If the IC terminals are
touched, the IC may be destroyed by static electric-
ity.)
(2) To disconnect vacuum hoses, pull off the end, not the middle of the hose.
(3) To pull apart electrical connectors, pull on the con- nector itself, not the wires.
(4) Be careful not to drop electrical components, such
as sensors or relays. If they are dropped on a hard
floor, they should be replaced and not reused.
(5) When steam cleaning an engine, protect the elec- tronic components, air filter and emission −related
components from water.
(6) Never use an impact wrench to remove or install temperature switches or temperature sensors.
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IN0H2−01
Z00796
SUPPORT POSITIONRear ......................................... Under rear differential
Safety stand ...........................................................\
...............
JACK POSITION
SCREW
TYPE JACK POSITION
Front
Front ........................................ Under front differential
IN−8
−
INTRODUCTION REPAIR INSTRUCTIONS
1996 LAND CRUISER (RM451U)
VEHICLE LIFT AND SUPPORT LOCATIONS
o
~
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IN−10
−
INTRODUCTION FOR ALL OF VEHICLES
10
Author: Date:
1996 LAND CRUISER (RM451U)
(3) Even in cases of a minor collision where the SRS
does not deploy, the steering wheel pad (See page
RS−9) and front passenger airbag assembly (See
page RS−23 ) should be inspected.
(4) Never use SRS parts from another vehicle. When replacing parts, replace them with new parts.
(5) Before repairs, remove the airbag sensor if shocks
are likely to be applied to the sensor during repairs.
(6) Never disassemble and repair the airbag sensor as-
sembly, steering wheel pad or front passenger air-
bag assembly in order to reuse them.
(7) If the airbag sensor assembly, steering wheel pad
or front passenger airbag assembly have been
dropped, or if there are cracks, dents or other de-
fects in the case, bracket or connector, replace
them with new ones.
(8) Do not directly expose the airbag sensor assembly, steering wheel pad or front passenger airbag as-
sembly to hot air or flames.
(9) Use a volt/ohmmeter with high impedance (10 kΩ/V
minimum) for troubleshooting of the electrical cir-
cuit.
(10) Information labels are attached to the periphery of the SRS components. Follow the instructions on the
notices.
(11) After work on the supplemental restraint system is completed, check the SRS warning light (See page
DI−240 ).
(c) SPIRAL CABLE (in Combination Switch) The steering wheel must be fitted correctly to the steering
column with the spiral cable at the neutral position, other-
wise cable disconnection and other troubles may result.
Refer to SR−19 of this manual concerning correct steer-
ing wheel installation.
RedMarkROOJll
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V08127
IN−14
−
INTRODUCTION FOR ALL OF VEHICLES
14
Author: Date:
1996 LAND CRUISER (RM451U)
2. WHEN TOWING FULL −TIME 4WD VEHICLES
Use one of the methods shown below to tow the vehicle.
If the vehicle has trouble in the chassis and drive train, use method 1 \
(flat bed truck).
TransmissionTransfer(w/oASS)
~
Parking
ShiftLever
ShiftLever Center
Center
Towing Method Brake
Position PositionDifferential
Differential
Lock Switch
CDFlatSed Truck
~
IN0309
@WheelLiftType Truck with
Dollies FREE
Applied
lipIIRangeIIHIIPosition OFF(Normal)
~
Driving
ii-;~
@TowingwithRope
L~
ReleasedlINIIRangeIIN/IPosition
OFFt
IN0312
HINT:Donotuse anytowing methods otherthanthose shown above.
Forexample, thetowing method shownbelowisdangerous, sodo not use it.
NO
~
IN0313
During towing withthistowing method, thereisadanger of thedrivetrain
heating upand causing breakdown, orofthe front wheels flyingoffthe
dolly.
\127
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 DTC No.
Indicates the diagnostic trouble code.
 Page or Instructions
Indicates the page where the inspection procedure
for each circuit is to be found, or gives instructions
for checking and repairs. Detection Item
Indicates the system of the problem or
contents of the problem.  Trouble Area
Indicates the suspect area of the
problem.
Mass
Air Flow Circuit MalfunctionDetection Item
 Open or short in mass air flow meter circuit
 Mass air flow meter
 ECM
DTC No.
(See page)
Trouble Area
MIL* MemoryP0100
(DI−24)
P0101
(DI−28)
P0115
(DI−33)  Open or short in intake air temp. sensor
circuit
 Intake air temp. sensor
 ECM
Intake Air Temp. Circuit
Malfunction
P0110
(DI−29)
 Open or short in engine coolant temp. sensor circuit
 Engine coolant temp. sensor
 ECM
Throttle/ Pedal Position Sensor/Switch
”A” Circuit MalfunctionEngine Coolant Temp.
Circuit Malfunction
 Open or short in throttle position sensor circuit
 Throttle position sensor
 ECM
HINT:
Parameters listed in the chart may not be exactly the same as your readi\
ng due to the type of instrument or other
factors.
If a malfunction code is displayed during the DTC check mode, check the circ\
uit for the code listed in the table
below. For details of each code, turn to the page referred to under the ”See\
page” for the respective ”DTC No.”
in the DTC chart.
Mass Air Flow Circuit
Range/ Performance Problem Mass air flow meter
 Throttle position sensor
Throttle/
Pedal Position Sensor/ Switch
”A” Circuit Range / Performance Prob-
lem
P0116
(DI−37)
Engine Coolant Temp.
Circuit
Range/ Performance Problem Engine coolant temp. sensor
 Cooling system
SAE CONTROLLED
DIAGNOSTIC TROUBLE CODE CHART
IN−24−
INTRODUCTION HOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
1996 LAND CRUISER (RM451U)
4. DIAGNOSTIC TROUBLE CODE CHART
The inspection procedure is shown in the table below. This ta ble permits efficient and accurate troubleshoot-
ing using the diagnostic trouble codes displayed in the diagnostic trouble code check. Proceed with trouble-
shooting in accordance with the inspection procedure given in the diagnostic cha\
rt corresponding to the
diagnostic trouble codes displayed. The engine diagnostic trouble code chart is sho\
wn below as an example.
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V08425
LOCKKNK
E6 Connector
(a) Remove the glove compartment (See page SF− 68).
(b) Disconnect the E6 connector from the ECM.
INSPECTION PROCEDURE
Replace knock sensor.
1 Check continuity between terminal KNK of ECM connector and body ground.
OK:
Check knock sensor (See page SF−61).
Measure
the resistance between terminal KNK of the ECM connec-
tor and body ground.
Resistance: 1 MΩ or higher
Connector being checked is connected.
 Indicates the condition of the connector of ECU during the check.
PREPARATION:
CHECK:
2
Go to step 3.
OK OK
NG
 Indicates the position of the ignition switch during the check.
Check from the connector back side.
(with harness)
Ignition Switch LOCK (OFF) Ignition Switch START
LOCKIgnition Switch ONIgnition Switch ACC
START ON
ACC

 Indicates the place to check the voltage or resistance.
 Indicates the connector position to checked, from the front or back side.
Connector being checked is disconnected.
Check from the connector front side. (without harness)
In this case, care must be taken not to bend the terminals.
E6 Connector
KNK Wire Harness
E6 Connector
KNK
A00255
AB0117
A00265
Inspection Procedure
Use the inspection procedure to determine if
the circuit is normal or abnormal, and, if it is
abnormal, use it to determine whether the
problem is
located in the sensors, actuators,
wire harness or ECU.
−
INTRODUCTION HOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMSIN−27
1996 LAND CRUISER (RM451U)
(2)
(2)
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IN0CI−02
IN−38
−
INTRODUCTION TERMS
1996 LAND CRUISER (RM451U)
GLOSSARY OF SAE AND TOYOTA TERMS
This glossary lists all SAE− J1930 terms and abbreviations used in this manual in compliance with SAE\
rec-
ommendations, as well as their TOYOTA equivalents.
SAE
ABBREVIATIONSSAE TERMSTOYOT A TERMS
( ) −−ABBREVIA TIONS
A/CAir ConditioningAir Conditioner
ACLAir CleanerAir Cleaner, A/CL
AIRSecondary Air InjectionAir Injection (AI)
APAccelerator Pedal−
B+Battery Positive Voltage+B, Battery Voltage
BAROBarometric PressureHAC
CACCharge Air CoolerIntercooler
CARBCarburetorCarburetor
CFIContinuous Fuel Injection−
CKPCrankshaft PositionCrank Angle
CLClosed LoopClosed Loop
CMPCamshaft PositionCam Angle
CPPClutch Pedal Position−
CTOXContinuous T rap Oxidizer−
CTPClosed Throttle PositionLL ON, Idle ON
DFIDirect Fuel Injection (Diesel)Direct Injection (DI)
DIDistributor Ignition−
DLC1
DLC2
DLC3Data Link Connector 1
Data Link Connector 2
Data Link Connector 31: Check Connector
2: Total Diagnosis Comunication Link (TDCL)
3: OBD II Diagnostic Connector
DTCDiagnostic Trouble CodeDiagnostic Code
DTMDiagnostic Test Mode−
ECLEngine Control Level−
ECMEngine Control ModuleEngine ECU (Electronic Control Unit)
ECTEngine Coolant T emperatureCoolant Temperature, Water Temperature (THW)
EEPROMElectrically Erasable Programmable Read Only Memory
Electrically Erasable Programmable Read Only Memory
(EEPROM),
Erasable Programmable Read Only Memory (EPROM)
EFEEarly Fuel EvaporationCold Mixture Heater (CMH), Heat Control Valve (HCV)
EGRExhaust Gas RecirculationExhaust Gas Recirculation (EGR)
EIElectronic IgnitionTOYOTA Distributorless Ignition (TDI)
EMEngine ModificationEngine Modification (EM)
EPROMErasable Programmable Read Only MemoryProgrammable Read Only Memory (PROM)
EVAPEvaporative EmissionEvaporative Emission Control (EVAP)
FCFan Control−
FEEPROMFlash Electrically Erasable Programmable
Read Only Memory−
FEPROMFlash Erasable Programmable Read Only Memory−
FFFlexible Fuel−
FPFuel PumpFuel Pump
GENGeneratorAlternator
GNDGroundGround (GND)
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−
INTRODUCTION TERMS
IN−39
1996 LAND CRUISER (RM451U)
HO2S
Heated Oxygen SensorHeated Oxygen Sensor (HO2S)
IACIdle Air ControlIdle Speed Control (ISC)
IATIntake Air TemperatureIntake or Inlet Air T
emperature
ICMIgnition Control Module−
IFIIndirect Fuel InjectionIndirect Injection (IDL)
IFSInertia Fuel−Shutoff−
ISCIdle Speed Control−
KSKnock SensorKnock Sensor
MAFMass Air FlowAir Flow Meter
MAPManifold Absolute PressureManifold Pressure
Intake V acuum
MCMixture Control
Electric Bleed Air Control Valve (EBCV)
Mixture Control Valve (MCV)
Electric Air Control Valve (EACV)
MDPManifold Dif ferential Pressure−
MFIMultiport Fuel InjectionElectronic Fuel Injection (EFI)
MILMalfunction Indicator LampCheck Engine Lamp
MSTManifold Surface T emperature−
MVZManifold Vacuum Zone−
NVRAMNon−Volatile Random Access Memory−
O2SOxygen SensorOxygen Sensor, O2 Sensor (O2S)
OBDOn−Board DiagnosticOn− Board Diagnostic System (OBD)
OCOxidation Catalytic ConverterOxidation Catalyst Convert (OC), CCo
OPOpen LoopOpen Loop
PAIRPulsed Secondary Air InjectionAir Suction (AS)
PCMPowertrain Control Module−
PNPPark/Neutral Position−
PROMProgrammable Read Only Memory−
PSPPower Steering Pressure−
PTOXPeriodic Trap OxidizerDiesel Particulate Filter (DPF)
Diesel Particulate Trap (DPT)
RAMRandom Access MemoryRandom Access Memory (RAM)
RMRelay Module−
ROMRead Only MemoryRead Only Memory (ROM)
RPMEngine SpeedEngine Speed
SCSuperchargerSupercharger
SCBSupercharger BypassE−ABV
SFISequential Multiport Fuel InjectionElectronic Fuel Injection (EFI), Sequential Injection
SPLSmoke Puff Limiter−
SRIService Reminder Indicator−
SRTSystem Readiness Test−
STScan Tool−
TBThrottle BodyThrottle Body
TBIThrottle Body Fuel InjectionSingle Point Injection
Central Fuel Injection (Ci)
TCTurbochargerTurbocharger
TCCTorque Converter ClutchTorque Converter
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IN−40
−
INTRODUCTION TERMS
1996 LAND CRUISER (RM451U)
TCM
Transmission Control ModuleTransmission ECU, ECT ECU
TPThrottle PositionThrottle Position
TRTransmission Range−
TVVThermal Vacuum V
alveBimetallic Vacuum Switching Valve (BVSV)
Thermostatic Vacuum Switching Valve (TVSV)
TWCThree−Way Catalytic Converter
Three−Way Catalytic (TWC)
Manifold Converter
CC
RO
TWC+OCThree−Way + Oxidation Catalytic ConverterCCR + CCo
VA FVolume Air FlowAir Flow Meter
VRVoltage RegulatorVoltage Regulator
VSSVehicle Speed SensorVehicle Speed Sensor
WOTWide Open ThrottleFull Throttle
WU−OCWarm Up Oxidation Catalytic Converter−
WU−TWCWarm Up Three−Way Catalytic Converter−
3GRThird Gear−
4GRFourth Gear−
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AC−4
−
AIR CONDITIONING AIR CONDITIONING SYSTEM
1996 LAND CRUISER (RM451U)
Insuf
ficient cooling
1. Refrigerant volume
2. Drive belt
3. Magnetic clutch
4. Compressor
5. Condenser
6. Receiver
7. Expansion valve
8. Evaporator
9. Refrigerant line
10.Pressure switch
11. A/C amplifier
12.A/C control assemblyAC−5
AC−15
AC−33
AC−33
AC−42
AC−39
AC−47
AC−45
AC−20
AC−61
AC−74
AC−69
No engine idle up when A/C switch ON
1. A/C amplifier
2. ECM
3. Wire harnessAC−74 −
−
No warm air comes out
1. Engine coolant volume
2. A/C control assembly
3. Water valve
4. Heater radiator−
AC−69
AC−49
AC−46
A/C indicator does not light up when mode lever at DEF. position
1. Defroster mode switch
2. A/C switch
3. Wire harnessAC−69
AC−69 −
Rear heater:
SymptomSuspect AreaSee page
No blower operation
1. RR HTR Fuse
2. Rear heater relay
3. Rear heater switch
4. Rear blower motor
5. Rear blower resistor−
AC−65
AC−77
AC−55
AC−58
No warm air come out1. Engine coolant volume
2. Rear heater radiator−
AC−46
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