1996 TOYOTA LAND CRUISER check engine

−
PREPARATION ENGINE MECHANICAL
PP−3
52
Author: Date:
1996 LAND CRUISER (RM451U)
(09316−00011)Replacer PipeCrankshaft front oil seal
(09316−00051)Replacer ”D”Crankshaft front oil seal
09330−00021Companion Flange Holding ToolCrankshaft pulley
09636−20010Upper Ball Joint Dust Cover
ReplacerCrankshaft timing gear
09816−30010Oil Pressure Switch SocketKnock sensor
09843−18020Diagnosis Check Wire
09950−40011Puller B SetCrankshaft timing gear
(09951−04010)Hanger 150
(09952−04010)Slide Arm
(09953−04020)Center Bolt 150
(09954−04010)Arm 25
(09955−04061)Claw No.6
09950−50012Puller C SetCrankshaft pulley
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SA1UQ−01
SA−48
−
SUSPENSION AND AXLE FRONT DIFFERENTIAL CARRIER
1996 LAND CRUISER (RM451U)
INSTALLATION
Installation is in the reverse order of removal (see page SA−27).
HINT:
w/ differential lock:
Before installation, check differential lock operation connecting the connector of the actuator to the
connector of the vehicle side.
w/ differential lock:
Before installation, check that the sleeves on work with switching over the differential lock control
switch.
After checking, lock the front differential.
After installation, fill the differential with gear oil (See page SA−27).
w/ differential lock:
After installation, check that the bleeder plug at the point of the bleeder tu\
be (inside of the engine room)
is not damaged or worn.
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SA1VL−03
−
SUSPENSION AND AXLE DIFFERENTIAL LOCKING SYSTEM
SA−101
958
Author: Date:
1996 LAND CRUISER (RM451U)
DIFFERENTIAL LOCKING SYSTEM
ON−VEHICLE INSPECTION
1. INSPECT DIFFERENTIAL LOCK SYSTEM
(a) Inspect the indicator lights.
Check that the indicator lights (front side and rear side)
light up for approx. 1 second when the ignition switch is
turned ON.
(b) Inspect the differential lock operation. (1) Jack up the vehicle then start the engine.
(2) Put the transfer shift lever on the L position.
(3) When the Diff. lock control switch is set to the RR
position, the indicator light (rear side) is turned on.
Differential lock is applied to the rear wheel at this
time.
HINT:
If the gears of the differential lock system are not meshed, the
indicator light remains blinking, so rotate the tires to mesh the
gear.
(4) When the Diff. lock control switch is at the OFF posi-
tion, the indicator light goes off.
Differential lock is released for the rear wheel at this
time.
(5) When the Diff. lock control switch is set to the FR/ RR position, the indicator lights (front side and rear
side) are turned on.
Differential lock is applied to both the front wheels
and rear wheels at this time.
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Z07254
M3 M4 M1 M2
Z07255
Wire Harness Side
SA−102
−
SUSPENSION AND AXLE DIFFERENTIAL LOCKING SYSTEM
959
Author: Date:
1996 LAND CRUISER (RM451U)
(6) Check the voltage between the terminals of the Diff.
lock ECU when switching the Diff. lock control
switch with the speedometer, registering approx. 8
km/h (5 mph) or more.
(7) Check that the indicator lights blink when center Diff. lock release mode is set.
Diff. lock is released for both the front wheels and
rear wheels at this time.
(8) Return the Diff. lock control switch to OFF.
(9) Stop the engine and lower the vehicle.
2. INSPECT DIFF. LOCK SYSTEM CIRCUIT
(a) Inspect the system circuit with connector disconnected. Disconnect the connector from the Diff. lock ECU and in-
spect the connector on the wire harness side, as shown
in the chart.
Trouble Part/
Terminals (Symbols)ConditionSpecified V alue
Rear diff. lock actuator/
1 (M2) − 3 (M1)−Less than 100 Ω
Front diff. lock actuator/
5 (M4) − 7 (M1)−Less than 100 Ω
Body ground/
13 (GND) − Body ground−Continuity
Vehicle speed sensor/
4(SPD) − Body groundVehicle moving slowly1 pulse each 40 cm (15.75 in.)
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SF1ED−04
−
SFI SFI SYSTEM
SF−1
629
Author: Date:
1996 LAND CRUISER (RM451U)
SFI SYSTEM
PRECAUTION
1. BEFORE WORKING ON FUEL SYSTEM, DISCON-
NECT NEGATIVE (−) TERMINAL CABLE FROM THE
BATTERY.
HINT:
Any diagnostic trouble code retained by the computer will be
erased when the negative ( −) terminal cable is disconnected.
Therefore, if necessary, read the diagnosis before disconnect-
ing the negative ( −) terminal cable from the battery.
2. DO NOT SMOKE OR WORK NEAR AN OPEN FLAME WHEN WORKING ON FUEL SYSTEM.
3. KEEP GASOLINE AWAY FROM RUBBER OR
LEA TH-
ER PARTS
4. MAINTENANCE PRECAUTIONS
(a) In event of engine misfire, these precautions should be taken.
(1) Check proper connection of battery terminals, etc.
(2) Handle high −tension cords carefully.
(3) After repair work, check that the ignition coil termi- nals and all other ignition system lines are recon-
nected securely.
(4) When cleaning the engine compartment, be espe-
cially careful to protect the electrical system from
water.
(b) Precautions when handling the oxygen sensor. (1) Do not allow the oxygen sensor to drop or hit
against an object.
(2) Do not allow the sensor to come in contact with wa- ter.
5. IF VEHICLE IS EQUIPPED WITH MOBILE RA-
DIO
SYSTEM (HAM, CB, ETC.)
If the vehicle is equipped with a mobile communication system,
refer to the precaution in the IN section.
6. AIR INDUCTION SYSTEM
(a) Separation of the engine oil dipstick, oil filler cap, PCV hose, etc. may cause the engine to run out of tune.
(b) Disconnection, looseness or cracks in the parts of the air
induction system between the throttle body and cylinder
head will allow air suction and cause the engine to run out
of tune.
7. ELECTRONIC CONTROL SYSTEM
(a) Before removing SFI wiring connectors, terminals, etc., first disconnect the power by either turning the ignition
switch OFF or disconnecting the negative ( −) terminal
cable from the battery.
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P03244Press Down
Lock
P03245Lock Insert
FI2553
SST
SF−2
−
SFI SFI SYSTEM
630
Author: Date:
1996 LAND CRUISER (RM451U)
HINT:
Always check the diagnostic trouble code before disconnecting
the negative ( −) terminal cable from the battery.
(b) When installing the battery, be especially careful not to in-
correctly connect the positive (+) and negative ( −) cables.
(c) Do not permit parts to receive a severe impact during re- moval or installation. Handle all SFI parts carefully, espe-
cially the ECM.
(d) Do not be careless during troubleshooting as there are numerous transistor circuits and even slight terminal con-
tact can further troubles.
(e) Do not open the ECM cover.
(f) When inspecting during rainy weather, take care to pre-
vent entry of water. Also, when washing the engine
compartment, prevent water from getting on the SFI parts
and wiring connectors.
(g) Parts should be replaced as an assembly.
(h) Care is required when pulling out and inserting wiring con-
nectors.
(1) Release the lock and pull out the connector, pulling
on the connectors.
(2) Fully insert the connector and check that it is locked.
(i) When inspecting a connector with a volt/ohmmeter (1) Carefully take out the water −proofing rubber if it is
a water−proof type connector.
(2) Insert the test probe into the connector from the wir-
ing side when checking the continuity, amperage or
voltage.
(3) Do not apply unnecessary force to the terminal.
(4) After checking, install the water−proofing rubber on
the connector securely.
(j) Use SST for inspection or test of the injector or its wiring connector.
SST 09842−30070
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P09286
New O−ring
Grommet Injector
Delivery Pipe WRONG
CORRECT
P09401
Fuel Return Hose
SF−4
−
SFI SFI SYSTEM
632
Author: Date:
1996 LAND CRUISER (RM451U)
(d) Observe the following precautions when removing and
installing the injectors.
(1) Never reuse the O −ring.
(2) When placing a new O −ring on the injector, take
care not to damage it in any way.
(3) Coat a new O −ring with spindle oil or gasoline be-
fore installing −never use engine, gear or brake oil.
(e) Install the injector to the delivery pipe and intake manifold
as shown in the illustration.
(f) Check that there are no fuel leaks after doing mainte- nance anywhere on the fuel system.
(1) Remove the fuse cover on the instrument panel.
(2) Connect the TOYOTA hand− held tester to the
DLC3.
(3) Turn the ignition switch ON and TOYOTA hand −
held tester main switch ON.
NOTICE:
Do not start the engine. (4) Select the active test mode on the TOYOTA hand−held tester.
(5) Please refer to the TOYOTA hand −held tester oper-
ator ’s manual for further details.
If you have no T OYOTA hand−held tester, connect the positive
(+) and negative ( −) leads from the battery to the fuel pump con-
nector (See page SF−14 ).
(6) Pinch the fuel return hose. The pressure in the high
pressure line will rise to approx. 392 kPa (4 kgf/cm
2,
57 psi). In this state, check to see that there are no
leaks from any part of the fuel system.
NOTICE:
Always pinch the hose. Avoid bending as it may cause the
hose to crack.
(7) Turn the ignition switch to LOCK.
(8) Disconnect the TOYOTA hand −held tester from the
DLC3.
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SF0Y1−06
SF−22
−
SFI FUEL PRESSURE REGULATOR
1996 LAND CRUISER (RM451U)
INSTALLATION
1. INSTALL FUEL PRESSURE REGULATOR
(a) Fully loosen the lock nut on the pressure regulator.
(b) Apply a light coat of gasoline to a new O −ring, and install
it to the pressure regulator.
(c) Insert the pressure regulator into the delivery pipe by hand completely.
(d) Turn the pressure regulator counterclockwise until the fuel outlet port faces in the direction indicated in the il-
lustration.
(e) Tighten the lock nut. Torque: 25 N·m (250 kgf·cm, 18 ft·lbf)
2. CONNECT FUEL RETURN HOSE TO FUEL PRES-
SURE REGULATOR
3. CONNECT V ACUUM SENSING HOSE TO FUEL PRES-
SURE REGULATOR
4. START ENGINE AND CHECK FOR FUEL LEAKAGE
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