1996 TOYOTA LAND CRUISER Ect

SF0Q1−07
SF−66
−
SFI ENGINE CONTROL MODULE (ECM)
1996 LAND CRUISER (RM451U)
INSPECTION
1. REMOVE ECM
2. INSPECT ECM (See page DI−17 )
3. REINSTALL ECM
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SF0Q2−08
−
SFI FUEL CUT RPM
SF−67
695
Author: Date:
1996 LAND CRUISER (RM451U)
FUEL CUT RPM
INSPECTION
1. WARM UP ENGINE
Allow the engine to warm up to normal operating temperature.
2. CONNECT TOYOTA HAND −HELD TESTER OR OBD II
SCAN TOOL
(a) Remove the fuse cover on the instrument panel.
(b) Connect the TOYOTA hand−held tester or OBD II scan tool to the DLC3.
(c) Please refer to the TOYOTA hand−held tester or OBD II
scan tool operator’s manual for further details.
3. INSPECT FUEL CUTOFF PRM
(a) Increase the engine speed to at least 3,500 rpm.
(b) Use a sound scope to check for injector operating noise.
(c) Check that when the throttle lever is released, injector op-
eration noise stops momentarily and then resumes.
HINT:
Measure with the A/C OFF. Fuel return rpm: 1,200 rpm
4. DISCONNECT TOYOTA HAND −HELD TESTER OR
OBD II SCAN TOOL
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SR164−01
−
STEERING STEERING SYSTEM
SR−1
1052
Author: Date:
1996 LAND CRUISER (RM451U)
STEERING SYSTEM
PRECAUTION
Care must be taken to replace parts properly because they could affect the pe\
rformance
of the steering system and result in a driving hazard.
The LAND CRUISER is equipped with SRS (Supplemental Restraint System) suc\
h as the
driver airbag and front passenger airbag. Failure to carry out service o\
peration in the
correct sequence could cause the SRS to unexpectedly deploy during servicing, possi-
bly leading to a serious accident. Before servicing (including removal or \
installation of
parts, inspection or replacement), be sure to read the precautionary notices \
in the RS
section.
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SR165−01
SR−2
−
STEERING TROUBLESHOOTING
1053
Author: Date:
1996 LAND CRUISER (RM451U)
TROUBLESHOOTING
PROBLEM SYMPTOMS TABLE
Use the table below to help you find the cause of the problem. The numbers \
indicate the priority of the likely
cause of the problem. Check each part in the order shown. If necessary, repair or replace these parts.
SymptomSuspect AreaSee page
Hard steering
11. Tires (Improperly inflated)
12.Power steering fluid level (Low)
13.Front wheel alignment (Incorrect)
14.Steering system joints (Worn)
15.Suspension arm ball joints (W orn)
16.Steering column (Binding)
17.Power steering vane pump
18.Power steering gearSA−3
SR−4 SA−4 −
−
−
SR−21
SR−33
Poor return
1. Tires (Improperly inflated)
2. Front wheel alignment (Incorrect)
3. Steering column (Binding)
4. Power steering gearSA−3
SA−4 −
SR−33
Excessive play
1. Steering system joints (Worn)
2. Suspension arm ball joints (W orn)
3. Intermediate shaft, Universal joint, Sliding yoke (Worn)
4. Front wheel bearing (W orn)
5. Power steering gear−
−
−
SR−7
SR−33
Abnormal noise
1. Power steering fluid level (Low)
2. Steering system joints (Worn)
3. Power steering vane pump
4. Power steering gearSR−4 −
SR−21
SR−33
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SR166−01
R07281
Normal Abnormal
SR−4
−
STEERING POWER STEERING FLUID
1996 LAND CRUISER (RM451U)
INSPECTION
1. CHECK FLUID LEVEL
(a) Keep the vehicle level.
(b) With the engine stopped, check the fluid level in the oil reservoir.
If necessary, add fluid.
Fluid: ATF DEXRON® II or III
HINT:
Check that the fluid level is within the HOT LEVEL range on the
reservoir cap dipstick. If the fluid is cold, check that it is within
the COLD LEVEL range.
(c) Start the engine and run it at idle.
(d) Turn the steering wheel from lock to lock several times to
boost fluid temperature.
Fluid temperature: 80° C (176°F)
(e) Check for foaming or emulsification.
If there is foaming or emulsification, bleed power steering sys-
tem. (See page SR−3 ).
(f) With the engine idling, measure the fluid level in the oil reservoir.
(g) Stop the engine.
(h) Wait a few minutes and remeasure the fluid level in the oil reservoir.
Maximum fluid level rise: 5 mm (0.20 in.)
If a problem is found, bleed power steering system (See page
SR−3 ).
(i) Check the fluid level.
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Z15498
PS GearClosed
SST PS Vane
Pump
Oil
Reservoir
−
STEERING POWER STEERING FLUID
SR−5
1996 LAND CRUISER (RM451U)
2. CHECK STEERING FLUID PRESSURE
(a) Disconnect the pressure feed tube from the PS vane
pump (See page SR−23).
(b) Connect SST over 2 new gaskets, as shown below. SST 09640 −10010 (09641 −01010, 09641 −01030,
09641 −01060)
NOTICE:
Check that the valve of the SST is in the open position.
(c) Bleed the power steering system (See page SR−3).
(d) Start the engine and run it at idle.
(e) Turn the steering wheel from lock to lock several times to
boost fluid temperature.
Fluid temperature: 80° C (176°F)
(f) With the engine idling, close the valve of the SST and ob-
serve the reading on the SST.
Minimum fluid pressure:
9,316kPa (95 kgf/cm
2, 1,351 psi)
NOTICE:
Do not keep the valve closed for more than 10 se-
conds.
Do not let the fluid temperature become too high.
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Z15499
PS GearSSTPS Vane
Pump
Oil
Reservoir
Open
Z15500
PS Gear
SSTPS Vane
Pump
Oil
Reservoir
Open
Lock Position
SR−6
−
STEERING POWER STEERING FLUID
1996 LAND CRUISER (RM451U)
(g) With the engine idling, open the valve fully.
(h) Measure the fluid pressure at engine speeds of 1,000 rpm
and 3,000 rpm.
Difference fluid pressure:
490 kPa (5 kgf/cm
2, 71 psi) or less
NOTICE:
Do not turn the steering wheel.
(i) With the engine idling and valve fully opened, turn the steering wheel to full lock.
Minimum fluid pressure:
9,316 kPa (95 kgf/cm
2, 1,351 psi)
NOTICE:
Do not maintain lock position for more than 10 se-
conds.
Do not let the fluid temperature become too high.
(j) Disconnect the SST.
(k) Connect the pressure feed tube (See page SR−32).
(l) Bleed the power steering system (See page SR−3).
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SR16A−03
−
STEERING TILT STEERING COLUMN
SR−11
1996 LAND CRUISER (RM451U)
REMOVAL
1. REMOVE STEERING WHEEL PAD
NOTICE:
If the airbag connector is disconnected with the ignition
switch at ON or ACC, DTCs will be recorded. Never use air-
bag parts from another vehicle. When replacing parts, re-
place with new parts.
(a) Place the front wheels facing straight ahead.
(b) Remove the steering wheel lower No.2 and No.3 cover from the steering wheel.
(c) Using a torx socket wrench, loosen the 2 torx screws.
HINT:
Loosen the 2 screws until the groove along the screw circumfer-
ence catches on the screw case.
(d) Pull out the wheel pad from the steering wheel and dis- connect the airbag connector.
CAUTION:
When storing the wheel pad, keep the upper surface of the
pad facing upward. Never disassemble the wheel pad.
NOTICE:
When removing the wheel pad, take care not to pull the air-
bag wire harness.
2. REMOVE STEERING WHEEL
(a) Disconnect the connector.
(b) Remove the steering wheel set nut.
(c) Place matchmarks on the steering wheel and main shaft assembly.
(d) Using SST, remove the wheel. SST 09950 −50010 (09951 −05010, 09952 −05010,
09953 −05020, 09954 −05020)
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