POWER STEERING OIL PUMP ASSEMBLY
POWER STEERING37-40
<2000>
>>A<<15. O-ring
16. Flow control springDisassembly steps (Continued)
17. Suction connector
>>A<<18. O-ringDisassembly steps (Continued)
AC100143AF
411
12
13
28 ± 2 N·m
102
9
8
6
5
7
3
1
28 ± 1 N·m
15
16
14
59 ± 9 N·m 9.9 ± 2.1 N·m
12 ± 1 N·m
18
17
5
7
3
98
6 3 13
10
2 13
10 15 18 114
3
Oil pump seal kit Oil pump cartridge kit Oil pump pulley and shaft kit
: ATF DEXRON III or DEXRON II
Disassembly steps
1. Pump cover
2. O-ring
3. Snap ring
4. Pulley and shaft
5. Vanes
>>C<<6. Cam ring
7. Rotor
8. Pin
9. Side plate
>>A<<10. O-ring
>>B<<11 . O i l s e a l
12. Terminal assembly
>>A<<13. O-ring
14. Plug assembly
>>A<<15. O-ring
16. Flow control spring
17. Suction connector
>>A<<18. O-ringDisassembly steps (Continued)
POWER STEERING OIL PUMP ASSEMBLY
POWER STEERING37-41
REASSEMBLY SERVICE POINTS
>>A<< O-RING INSTALLATION>>B<< OIL SEAL INSTALLATION
Use following special tool to install the oil seal.
•MB990938: Bar (Snap-in type)
•MB991203: Oil Seal and Bearing Installer
>>C<< CAM RING INSTALLATION
CAUTION
Be sure to install the cam ring in the correct
direction as shown.
Install the cam ring as shown in the illustration.
INSPECTIONM1372005500200
•Check the flow control valve of the pump body for
clogging.
•Check the pulley and shaft for wear or damage.
•Check the rotor and vane groove for "stepped"
wear.
•Check the contact surface of cam ring and vanes
for "stepped" wear.
•Check the vanes for damage. No. ID × Width mm
1 15.8 × 2.4
2 21.0 × 1.9
3 14.8 × 2.4
43.8 × 1.9
5 14.8 × 1.9
AC100170
AB
Suction connectorPlug assembly
Terminal assembly Side plate
1
2
3
4
5
AC000752
MB990938
AB
MB991203
AC100171AB
Side plate side
Pump cover side
POWER STEERING HOSES
POWER STEERING37-42
POWER STEERING HOSES
REMOVAL AND INSTALLATIONM1372005700679
CAUTION
•Before removing the clock spring, refer to GROUP 52B, Service Precautions (P.52B-5) and Air Bag
Module and Clock Spring (P.52B-210). Also, put the front wheels in straight-ahead position.
Failure to do so may damage the SRS clock spring and render the SRS air bag inoperative, which
results serious driver injury.
•
*: Indicates parts which should be initially tightened, and then fully tightened after placing the
vehicle horizontally and loading the full weight of the engine on the vehicle body.
Pre-removal and Post-installation Operation
•Power Steering Fluid Draining and Refilling (Refer to
P.37-13). and Bleeding (Refer to P.37-13).
AC304699AB
15 ± 3 N·m
18 ± 2 N·m
167 ± 9 N·m 12 ± 2 N·m
49 ± 10 N·m 12 ± 2 N·m
57 ± 7 N·m*57 ± 7 N·m
3 1
2
9
13
10
711 12
568
12 ± 2 N·m12 ± 2 N·m
2
9
4 7 8
7 8
7
8
57 ± 7 N·m57 ± 7 N·m 57 ± 7 N·m
12 ± 2 N·m
167 ± 9 N·m
Crossmember 12 ± 2 N·m
<1300, 1600> <2000>
12 ± 2 N·m
Removal steps
1. Oil reservoir
>>C<<2. Suction hose
>>B<<3. Return hose•Clock spring (Refer to GROUP 52B,
Air Bag Modules and Clock Spring
P.52B-210). Removal steps (Continued)
POWER STEERING HOSES
POWER STEERING37-43
•Centermember (Refer to GROUP 32,
Engine Roll Stopper Centermember
P.32-7).
•Front exhaust pipe (Refer to GROUP
15, Exhaust Pipe and Main Muffler
P.15-11).
4. Steering gear and joint connecting
bolt
5. Rear roll stopper connecting bolt
6. Rear roll stopper (Refer to GROUP
32, Engine Roll Stopper
Centermember P.32-7).
<>7. Eye boltRemoval steps (Continued)
8. Gasket
9. Pressure hose assembly
10. Return tube
>>A<<11. Return hose
<>12. Return tube
13. O-ringRemoval steps (Continued)
AC304698AB
15 ± 3 N·m
18 ± 2 N·m
167 ± 9 N·m 12 ± 2 N·m
49 ± 10 N·m 12 ± 2 N·m
57 ± 7 N·m*
3 1
2
9
10
7
5 6
24
8857 ± 7 N·m
167 ± 9 N·m
Crossmember12 ± 2 N·m <1300, 1600>
<2000>
7
6
57 ± 7 N·m
7 6
57 ± 7 N·m
7
6
57 ± 7 N·m
12 ± 2 N·m
Removal steps
1. Oil reservoir
>>C<<2. Suction hose
>>B<<3. Return hose•Clock spring (Refer to GROUP 52B,
Air Bag Modules and Clock Spring
P.52B-210). Removal steps (Continued)
POWER STEERING HOSES
POWER STEERING37-44
REMOVAL SERVICE POINT
<> EYE BOLT/RETURN TUBE
REMOVAL
CAUTION
If the joint cover grommet has been removed,
install it properly as follows.
Align the joint cover grommet notch (arrow A)
with the steering gear lug (arrow B), and then
install the steering joint cover to the steering
gear.
1. Loosen the crossmember mounting bolts and
nuts, and lower the crossmember to a position so
that the eye bolts or return tube at the steering
gear side can be removed.
NOTE: In this case, do not remove the
crossmember mounting bolts and nuts.
2. Remove the eye bolts or return tube.
INSTALLATION SERVICE POINTS
>>A<< RETURN HOSE INSTALLATION
Install the return hose so that the marking is
positioned as shown in the illustration.
>>B<< RETURN HOSE INSTALLATION
Install the return hose so that the markings are
positioned as shown in the illustration.
>>C<< SUCTION HOSE INSTALLATION
Install the suction hose (oil pump side) so that the
marking is positioned forward.
•Centermember (Refer to GROUP 32,
Engine Roll Stopper Centermember
P.32-7).
•Front exhaust pipe (Refer to GROUP
15, Exhaust Pipe and Main Muffler
P.15-11).
4. Steering gear and joint connecting
bolt
5. Rear roll stopper connecting bolt
<>6. Eye bolt
7. Gasket
8. Pressure hose assembly
<>9. Return tube
10. O-ringRemoval steps (Continued)
AC304922AB
A
B Joint cover
grommet
Steering gear
AC100277
ABReturn hose
AC305132AB
Return hose
Return tubeReturn hose
IGNITION SWITCH
CHASSIS ELECTRICAL54A-6
IGNITION SWITCH
GENERAL INFORMATIONM1543009901274
IGNITION KEY REMINDER BUZZER
The ignition key reminder buzzer will sound under
the following condition, and warn the driver to
remove the ignition key.
•The driver's door is opened when the ignition
switch is at "LOCK" (OFF) or "ACC" position
without removing the ignition key.
However, the lamp reminder buzzer will take
precedence over this function.
DOOR LOCK PREVENTION FUNCTION
If the key is left in the ignition switch while the driver’s
door opened or the assistant door opened, all door
are automatically unlock to prevent locking the
ignition key in the vehicle after door is locked.
IMMOBILIZER SYSTEM
The immobilizer system consists of the ignition key
with a transponder, the immobilizer-ECU, and the
engine-ECU
the registered ignition key permits the engine to start,
therefore, the engine can never be started by means
of a forged key or by connecting the ignition wiring
directly. The system is significantly safe and reliable
against theft. In addition, the driver has only to turn
the ignition switch to the "ON" position to activate the
immobilizer system. If the requirements for starting the engine are not satisfied, the engine will be
immobilized. If a registered ignition key is lost, all
your ignition keys need to be registered again using
MUT-II/III to ensure security (Refer to P.54A-20). An
additional ignition key can be registered as follows
(only if no ignition keys are lost):
•Using MUT-II/III (Refer to P.54A-20).
OPERATION
1. When the ignition switch is turned to "ON"
position, the engine-ECU
engine-A/T-ECU
the encrypted code to the immobilizer-ECU (at
this time, the engine is remobilized).
2. When the immobilizer-ECU receives the
requirement from the engine-ECU
engine-A/T-ECU , the immobilizer-ECU
supplies power to the transponder inside the
ignition key via the antenna. The energized
transponder sends the encrypted code back to the
immobilizer-ECU via the antenna.
3. The immobilizer-ECU judges the encrypted code
with its code logic in itself. If they are identical, the
immobilizer-ECU sends the encrypted code to the
engine-ECU
4. If the engine-ECU
not receive the encrypted code, the engine will be
immobilized.
AC304482AB
Power
(Wireless)
Encrypted code
(Wireless) Ignition keyControl signal
Encrypted
code
TransponderImmobilizer-ECU
with an antenna
Steering lockCPU
MUT-II/III Memory Engine-ECU
Engine-A/T-ECU
CPUInjector
Ignition
ON-VEHICLE SERVICE
HEATER, AIR CONDITIONER AND VENTILATION55-74
REFRIGERANT LEAK REPAIR
PROCEDURE
M1552001500277
LOST CHARGE
If the system has lost all charge due to a leak:
1. Evacuate the system (Refer to P.55-72).
2. Charge the system with approximately 480 − 520
g of refrigerant.
3. Check for leaks.
4. Discharge the system.
5. Repair leaks.
CAUTION
Replacement filter-drier units must be sealed
while in storage. The drier used in these units will
saturate water quickly upon exposure to the
atmosphere. When installing a drier, have all
tools and supplies ready for quick assembly to
avoid keeping the system open any longer than
necessary.
6. Replace receiver drier.
7. Evacuate and charge system.
LOW CHARGE
If the system has not lost all of its refrigerant charge;
locate and repair all leaks. If it is necessary to
increase the system pressure to find the leak
(because of an especially low charge) add
refrigerant. If it is possible to repair the leak without
discharging the refrigerant system, use the
procedure for correcting low refrigerant level.
HANDLING TUBING AND FITTINGS
Kinks in the refrigerant tubing or sharp bends in the
refrigerant hose lines will greatly reduce the capacity
of the entire system. High pressures are produced in
the system when it is operating. Extreme care must
be exercised to make sure that all connections are
pressure tight. Dirt and moisture can enter the
system when it is opened for repair or replacement of
lines or components. The following precautions must
be observed. The system must be completely
discharged before opening any fitting of connection
in the refrigeration system. Open fittings with caution
even after the system has been discharged. If any
pressure is noticed as a fitting is loosened, allow
trapped pressure to bleed off very slowly.
Never attempt to rebend formed lines to fit. Use the
correct line for the installation you are servicing. A
good rule for the flexible hose lines is keep the radius
of all bends at least 10 times the diameter of the
hose.Sharper bends will reduce the flow of refrigerant. The
flexible hose lines should be routed so that they are
at least 80 mm from the exhaust manifold. It is good
practice to inspect all flexible hose lines at least once
a year to make sure they are in good condition and
properly routed.
On standard plumbing fittings with O-rings, these
O-rings are not reusable.
COMPRESSOR NOISE CHECKM1552008700272
You must first know the conditions when the noise
occurs. These conditions are: weather, vehicle
speed, in gear or neutral, engine temperature or any
other special conditions.
Noises that develop during A/C operation can often
be misleading. For example: what sounds like a
failed front bearing or connecting rod, may be
caused by loose bolts, nuts, mounting brackets, or a
loose clutch assembly. Verify accessory drive belt
tension (power steering or alternator).
Improper accessory drive belt tension can cause a
misleading noise when the compressor is engaged
and little or no noise when the compressor is
disengaged.
Drive belts are speed-sensitive. That is, at different
engine speeds, and depending upon belt tension,
belts can develop unusual noises that are often
mistaken for mechanical problems within the
compressor.
ADJUSTMENT
1. Select a quiet area for testing. Duplicate
conditions as much as possible. Switch the
compressor on and off several times to clearly
identify compressor noise. To duplicate high
ambient conditions (high head pressure), restrict
air flow through the condenser. Install a manifold
gauge set to make sure discharge pressure
doesn't exceed 2,070 kPa.
2. Tighten all compressor mounting bolts, clutch
mounting bolt, and compressor drive belt. Check
to assure clutch coil is tight (no rotation or
wobble).
3. Check refrigerant hoses for rubbing or
interference that can cause unusual noises.
4. Check refrigerant charge (Refer to P.55-69).
5. Recheck compressor noise as in Step 1.
6. If noise still exists, loosen compressor mounting
bolts and retighten. Repeat Step 1.
7. If noise continues, replace compressor and repeat
Step 1.