1996 TOYOTA T100 Rotors

Downloaded from www.Manualslib.com manuals search engine BR3583
BR3582F00010
RotorSpeed Sensor
Magnet
To ECU
+V
−VHigh Speed
Low Speed
CoilNS
− DIAGNOSTICSANTI−LOCK BRAKE SYSTEM
DI−341
1996 TOYOTA T100 (RM449U)
DTC 31 − 36 Speed Sensor Circuit
CIRCUIT DESCRIPTION
The speed sensor detects wheel speed and sends the ap-
propriate signals to the ECU. These signals are used to control
the ABS system. The front and rear rotors each have 48 serra-
tions.
When the rotors rotate, the magnetic field emitted by the perma-
nent magnet in the speed sensor generates an AC voltage.
Since the frequency of this AC voltage changes in direct propor-
tion to the speed of the rotor, the frequency is used by the ECU
to detect the speed of each wheel.

DTC No.DTC Detecting ConditionTrouble Area
31, 32, 33, 34
Detection of any of conditions 1 through 3:
1. At vehicle speed of 10 km/h (6 mph) or more, pulses are
not input for 15 sec.
2. Momentary interruption of speed sensor signal occurs at
least 7 times in time between switching the ignition
switch ON and switching it OFF.
3. Abnormal fluctuation of speed sensor signals with ve-
hicle speed 20 km/h (12 mph) or more.
4. An open is detected in speed sensor circuit for 0.6 sec.
Right front, left front, right rear, left rear speed sensor
Open or short in each speed sensor circuit
ECU
35
Speed sensor signal is not input for about 1 sec. while left
front and right rear speed sensor signals are being
checked with IG switch ON.Open in left front or right rear speed sensor circuit
ECU
36
Speed sensor signal is not input for about 1 sec. while right
front and left rear speed sensor signals are being checked
with IG switch ON.Open in right front or left rear speed sensor circuit
ECU
HINT:
DTC No. 31 is for the right front speed sensor.
DTC No. 32 is for the left front speed sensor.
DTC No. 33 is for the right rear speed sensor.
DTC No. 34 is for the left rear speed sensor.
Fail safe function:
If trouble occurs in the speed sensor circuit, the ECU cuts off current to the ABS control (solenoid) relay and
prohibits ABS control.
DI10D−02

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P14865
Z11073
LU−8
− LUBRICATION (3RZ−FE)OIL PUMP
1996 TOYOTA T100 (RM449U)
DISASSEMBLY
1. REMOVE DRIVE AND DRIVEN ROTORS
Remove the 9 screws, pump cover, drive rotor, driven rotor and
O−ring.
2. REMOVE RELIEF VALVE
(a) Using snap ring pliers, remove the snap ring.
(b) Remove the these parts:
(1) Retainer
(2) Spring
(3) Relief valve

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P14867
P14873
P14872
P14874
− LUBRICATION (3RZ−FE)OIL PUMP
LU−9
1996 TOYOTA T100 (RM449U)
INSPECTION
1. INSPECT RELIEF VALVE
Coat the valve with engine oil and check that it falls smoothly
into the valve hole by its own weight.
If it does not, replace the relief valve. If necessary, replace the
oil pump assembly.
2. INSPECT ROTOR BODY CLEARANCE
Using a thickness gauge, measure the clearance between the
driven rotor and body.
Standard body clearance:
0.100 − 0.175 mm (0.0039 − 0.0069 in.)
Maximum body clearance:
0.30 mm (0.0118 in.)
If the body clearance is greater than maximum, replace the ro-
tors as a set. If necessary, replace the oil pump assembly.
3. INSPECT ROTOR SIDE CLEARANCE
Using a thickness gauge and precision straight edge, measure
the clearance between the rotors and precision straight edge.
Standard side clearance:
0.030 − 0.090 mm (0.0012 − 0.0035 in.)
Maximum side clearance:
0.15 mm (0.0059 in.)
If the side clearance is greater than maximum, replace the ro-
tors as a set. If necessary, replace the oil pump assembly.
4. INSPECT ROTOR TIP CLEARANCE
Using a thickness gauge, measure the clearance between the
drive and driven rotor tips.
Standard tip clearance:
0.110 − 0.240 mm (0.0043 − 0.0094 in.)
Maximum tip clearance:
0.25 mm (0.0098 in.)
If the tip clearance is greater than maximum, replace the rotors
as a set.

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Z11072
P14912
P14866
New O−Ring
− LUBRICATION (3RZ−FE)OIL PUMP
LU−11
1996 TOYOTA T100 (RM449U)
REASSEMBLY
1. INSTALL RELIEF VALVE
(a) Install these parts:
(1) Relief valve
(2) Spring(s)
(3) Retainer
(b) Using snap ring pliers, install the snap ring.
2. INSTALL DRIVE AND DRIVEN ROTORS
(a) Place the drive and driven rotors into the pump body.
(b) Place a new O−ring to the pump body.
(c) Install the pump cover with the 9 screws.

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P20933
Mark
P20970
LU−10
− LUBRICATION (5VZ−FE)OIL PUMP
1996 TOYOTA T100 (RM449U)
DISASSEMBLY
1. REMOVE DRIVEN AND DRIVE ROTORS
(a) Remove the 8 screws and pump body cover.
Torque:10 N·m (105 kgf·cm, 8 ft·lbf)
(b) Remove the drive and driven rotors.
HINT:
Place the drive and driven rotor into pump body with the marks
facing the pump body cover side.
2. REMOVE RELIEF VALVE
(a) Unscrew the relief valve plug and gasket.
(b) Remove the spring and relief valve.

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P20968
Relief Valve
P20934
P20935
P20936
− LUBRICATION (5VZ−FE)OIL PUMP
LU−11
1996 TOYOTA T100 (RM449U)
INSPECTION
1. INSPECT RELIEF VALVE
Coat the valve with engine oil and check that it falls smoothly
into the valve hole by its own weight.
If the valve does not fall smoothly, replace the valve. If neces-
sary, replace the oil pump assembly.
2. INSPECT ROTOR BODY CIEARANCE
Using a thickness gauge, measure the clearance between the
driven rotor and pump body.
Standard body clearance:
0.10 − 0.18 mm (0.0039 − 0.0069 in.)
Maximum body clearance:
0.30 mm (0.0118 in.)
If the body clearance is greater than maximum, replace the ro-
tors as a set. If necessary, replace the oil pump assembly.
3. INSPECT ROTOR TIP CLEARANCE
Using a thickness gauge, measure the clearance between the
drive and driven rotor tips.
Standard tip clearance:
0.11 − 0.24 mm (0.0043 − 0.0094 in.)
Maximum tip clearance:
0.35 mm (0.0138 in.)
If the tip clearance is greater than maximum, replace the rotors
as a set.
4. INSPECT ROTOR SIDE CLEARANCE
Using a thickness gauge and precision straight edge, measure
the clearance between the rotors and precision straight edge.
Standard side clearance:
0.03 − 0.09 mm (0.0012 − 0.0035 in.)
Maximum side clearance:
0.15 mm (0.0059 in.)
If the side clearance is greater than maximum, replace the ro-
tors as a set. If necessary, replace the oil pump assembly.

Downloaded from www.Manualslib.com manuals search engine TR0D0−01
TF0547
TF0485
TR−18
− TRANSFEROIL PUMP BODY
1996 TOYOTA T100 (RM449U)
DISASSEMBLY
1. CHECK OIL PUMP OPERATION
Install the oil pump drive gear to the drive rotor and check that
the drive rotor turns smoothly.
2. REMOVE STRAIGHT SCREW PLUG, SPRING, BALL
AND SEAT
(a) Using a hexagon wrench, remove the straight screw plug.
Torque: 29 N·m (300 kgf·cm, 22 ft·lbf)
HINT:
At the time of installation, apply liquid sealer to the plug.
Sealant:
Part No. 08833−00080, THREE BOND 1344, LOCTITE
242 or equivalent
(b) Using a magnetic finger remove the spring and ball.
(c) Using SST, pull out the seat.
SST 09921−00010
(d) Remove the O−ring from the seat.
HINT:
At the time of reassembly, please refer to the following items.
Install a new O−ing to the seat.
When installing the seat, push the seat until it touches the
bottom of the hole in the body.
3. REMOVE OIL PUMP PLATE
(a) Using a torx socket wrench (T30), unscrew the 3 torx
screws.
Torque: 7.4 N·m (75 kgf·cm, 65 in.·lbf)
(b) Remove the oil pump plate.
4. REMOVE DRIVE ROTOR AND DRIVEN ROTOR
HINT:
At the time of reassembly, apply gear oil to the both rotors.

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TF0486
TF0487
TF0488
− TRANSFEROIL PUMP BODY
TR−19
1996 TOYOTA T100 (RM449U)
INSPECTION
1. INSPECT DRIVEN ROTOR BODY CLEARANCE
(a) Push the driven rotor to one side of the body.
(b) Using a feeler gauge, measure the clearance.
Standard clearance:
0.10 − 0.16 mm (0.0039 − 0.0063 in.)
Maximum clearance: 0.16 mm (0.0063 in.)
If the clearance exceeds the maximum, replace the drive rotor,
driven rotor or pump body.
2. INSPECT BOTH ROTORS TIP CLEARANCE
Using a feeler gauge, measure the clearance between both ro-
tor tips.
Standard clearance:
0.08 − 0.16 mm (0.0031 − 0.0063 in.)
Maximum clearance: 0.16 mm (0.0063 in.)
If the clearance exceeds the maximum, replace the drive rotor,
driven rotor or pump body.
3. INSPECT BOTH ROTORS SIDE CLEARANCE
Using a steel straight edge and feeler gauge, measure the
clearance between the rotors and straight edge.
Standard clearance:
0.03 − 0.08 mm (0.0012 − 0.0031 in.)
Maximum clearance: 0.08 mm (0.0031 in.)
If the clearance exceeds the maximum, replace the drive rotor,
driven rotor or pump body.