1996 TOYOTA LAND CRUISER Position

SA24T−01
SA2310
−
SUSPENSION AND AXLE REAR DIFFERENTIAL CARRIER
SA−79
1996 LAND CRUISER (RM451U)
REMOVAL
1. w/ Differential lock:
SHIFT REAR DIFFERENTIAL TO LOCK
(a) Turn the ignition switch to the ON position.
(b) Keep the center differential lock condition.
(c) Turn the differential lock control switch to the RR or FR/ RR position and lock the rear differential.
HINT:
Rotating the tires, check they are in the differential lock condi-
tion.
(d) Disconnect the cable from the negative terminal of the battery.
2. DRAIN DIFFERENTIAL OIL
3. REMOVE REAR AXLE SHAFTS (See page SA−63 )
4. DISCONNECT PROPELLER SHAFT (See page PR−3 )
5. REMOVE DIFFERENTIAL CARRIER ASSEMBLY
(a) Remove the 10 nuts, washers and differential carrier as- sembly.
NOTICE:
Be careful not to damage the installation surface. Torque: 73 N·m (740 kgf·cm, 54 ft·lbf)
(b) Remove the gasket.
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W00493
30 mm
(1.18 in.)
SA1VH−04
SA2446
SA−80
−
SUSPENSION AND AXLE REAR DIFFERENTIAL CARRIER
1996 LAND CRUISER (RM451U)
DISASSEMBLY
1. CHECK RUNOUT OF COMPANION FLANGE
Using a dial indicator, measure the vertical and lateral runout of
the companion flange. Maximum runout: 0.10 mm (0.0039 in.)
2. CHECK RING GEAR RUNOUT
Using a dial indicator, measure the ring gear runout. Maximum runout: 0.10 mm (0.0039 in.)
If the runout is greater than the maximum, replace the ring gear.
3. CHECK RING GEAR BACKLASH
Using a dial indicator, measure the ring gear backlash. Backlash: 0.15 − 0.20 mm (0.0059 − 0.0079 in.)
HINT:
Perform the measurements at 3 or more positions around the
circumference of the ring gear.
If the backlash is not within the specification, adjust the side
bearing preload or repair as necessary.
4. MEASURE DRIVE PINION PRELOAD
(a) Using a torque wrench, measure the preload of backlash between the drive pinion and ring gear.
Preload (at starting):
0.7 − 1.0 N·m (7 − 10 kgf·cm, 6.1 − 8.7 in.·lbf)
(b) Using a torque wrench, measure the preload. Total preload (at starting):
Drive pinion preload plus
w/o Differential lock
0.4 − 0.6 N·m (4 − 6 kgf·cm, 3.5 − 5.2 in.·lbf)
w/ differential lock
0.3 − 0.7 N·m (3 − 7 kgf·cm, 2.6 − 6.1 in.·lbf)
If necessary, disassemble and inspect the differential.
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Z06918
−
SUSPENSION AND AXLE REAR DIFFERENTIAL CARRIER
SA−95
1996 LAND CRUISER (RM451U)
(g) Using the SST, torque the adjusting nut 1−1.5 notches
from the zero preload position.
(h) Using a dial indicator, adjust the ring gear backlash until it is within the specification.
Backlash: 0.15 − 0.20 mm (0.0059−0.0079 in.)
HINT:
The backlash is adjusted by turning the left and right adjusting
nuts equal amounts. For example, loosen the nut on the left
side one notch and torque the nut on the right side one notch.
(i) Torque the 4 bearing cap bolts. Torque:78 N·m (800 kgf·cm, 58 ft·lbf)
(j) Recheck the ring gear backlash. Backlash: 0.15 − 0.20 mm (0.0059−0.0079 in.)
17. MEASURE TOTAL PRELOAD
Using a torque wrench, measure the preload.
Total preload (at starting):
Drive pinion preload plus
w/o Differential lock
0.4 − 0.6 N·m (4 − 6 kgf·cm, 3.5 − 5.2 in.·lbf)
w/ Differential lock
0.3− 0.7 N·m (3 − 7 kgf·cm, 2.6 − 6.1 in.·lbf)
18. INSPECT TOOTH CONTACT BETWEEN RING GEAR AND DRIVE PINION
(a) Coat 3 or 4 teeth at 3 different positions on the ring gear
with red lead.
(b) Turn the companion flange, pin both directions to inspect the ring gear for proper tooth contact.
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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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Z07256
ECU Side
−
SUSPENSION AND AXLE DIFFERENTIAL LOCKING SYSTEM
SA−103
960
Author: Date:
1996 LAND CRUISER (RM451U) DIFF. fuse/
8 (IG) − Body ground
Ignition switch ONBattery positive voltage
Rear diff. lock position switch/
2 (RLP) − Body groundIgnition switch ON,
Indicator light (Rear) ONAbout 0 V
Ignition switch ON,
Indicator light (Rear) OFFBattery positive voltage
Front diff. lock position switch/ 9 (FLP) − Body ground
Ignition switch ON,
Indicator light (front) ON.About 0 V
Ignition switch ON,
Indicator light (front) OFFBattery positive voltage
Center diff. indicator switch/ 15 (4WD) − Body groud
Ignition switch ON,
Indicator light (Center diff. lock) ONAbout 0 V
Ignition switch ON,
Indicator light (Ce nter diff. lock) OFFBattery positive voltage
Differential lock control switch/
12 (R) − Body ground
Ignition switch ON,
Diff. lock control switch RR or FR RRBattery positive voltage
Ignition switch ON,
Diff. lock control switch OFFAbout 0 V
Differential lock control switch/ 6 (RF) − Body ground
Ignition switch ON,
Diff. lock control switch FR RRBattery positive voltage
Ignition switch ON,
Diff. lock control switch OFF or RRAbout 0 V
HINT:
When a signal enters the ECU to LOCK the front dif ferential and
set the rear differential to FREE (when battery positive voltage
is inputted to terminal 6 (RF) of ECU and about 0 V is inputted
to terminal 12 (R)), or a signal to FREE both the front and rear
differentials, the indicator lights keep blinking until the ignition
switch is turned off (Fail−safe function).
If the circuit is not as specified, check and repair or replace the
trouble part shown in the table above.
(b) Inspect the battery positive voltage Battery positive voltage: 10 − 14.5 V
(c) Inspect the system circuit with connector connected (1) Turn the ignition switch to the ON position.
(2) Keep the center Diff. lock condition.
(3) Remove the Diff. lock ECU.
(4) Using a voltmeter, measure the voltage when thedifferential lock control switch is in the position, as
shown below.
Terminals (Symbols)Switch PositionSTD Voltage (V)
15 (4WD) − 13 (GND)−0.5 or less
9 (FLP) − 13 (GND)FR RR0.5 or less
2 (RLP) − 13 (GND)RR or FR RR0.5 or less
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SA1948
21
4
Z07264
Ohmmeter
−
SUSPENSION AND AXLE DIFFERENTIAL LOCKING SYSTEM
SA−105
962
Author: Date:
1996 LAND CRUISER (RM451U)
4. INSPECT DIFF. LOCK CONTROL SWITCH
Inspect the switch continuity between terminals, as shown.
Switch PositionTerminalsSpecified Condition
OFF1 − 2No continuity
1 − 4No continuity
RR1 − 2No continuity
1 − 4Continuity
FR RR1 − 2Continuity
1 − 4Continuity
If continuity is not as specified, replace the switch.
5. INSPECT DIFF. LOCK POSITION SWITCH
(a) Front and Rear:
Inspect the diff. lock position switch.
(1) Check that there is continuity between terminalswhen the switch is pushed (differential connected
position).
(2) Check that there is no continuity when the switch is
free (differential disconnected position).
If operation is not as specified, replace the switch.
(b) Inspect the center diff. indicator switch.
6. INSPECT VEHICLE SPEED SENSOR AND INDICATOR
LIGHT
(a) Inspect the vehicle speed sensor (See page BE−34).
(b) Inspect the indicator light.
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SA1VN−02
Z07258
Z07261
SA2619
−
SUSPENSION AND AXLE DIFFERENTIAL LOCKING SYSTEM
SA−107
1996 LAND CRUISER (RM451U)
REMOVAL
1. REMOVE FRONT ACTUATOR
(a) Shifting the front differential lock.
(b) Disconnect the connector and tube.
(c) Remove the 2 nuts, bolt and actuator.
(d) Remove the O−ring from the actuator.
2. REMOVE REAR ACTUATOR
(a) Shifting the gear differential lock.
(b) Remove the actuator protector.
Remove the 2 nuts, bolt and protector.
(c) Disconnect the connectors and tube.
(d) Remove the rear Diff. lock position switch.
(e) Remove the cover. (1) Remove the 3 bolts.
(2) Using a brass bar and hammer, remove the cover.
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SA2619
Z07261
−
SUSPENSION AND AXLE DIFFERENTIAL LOCKING SYSTEM
SA−111
1996 LAND CRUISER (RM451U)
(3) Tighten the 3 bolts.
Torque: 18 N·m (185 kgf·cm, 13 ft·lbf)
(i) Install the rear Diff. position switch. Install the position switch with a new gasket.
Torque: 40 N·m (410 kgf·cm, 30 ft·lbf)
(j) Connect the connectors and tube.
HINT:
The depth of the insertion of the bleeder tube into the
hose is approx. 15 mm (0.59 in.).
Take care that the water or the equivalent will not adhere
to the connectors and hose.
(k) Install the actuator protector. Install the protector with the 2 nuts and bolt.
Torque:
Nut: 35 N·m (360 kgf·cm, 26 ft·lbf)
Bolt: 20 N·m (200 kgf·cm, 14 ft·lbf)
(l) Cancel the rear differential lock. With the ignition switch ON, turn the differential lock con-
trol switch to OFF to cancel the differential lock.
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