ATC-18
REFRIGERATION SYSTEM
REFRIGERATION SYSTEMPFP:KA990
Refrigerant CycleEJS000TD
REFRIGERANT FLOW
The refrigerant flows in the standard pattern, that is, through the compressor, the condenser with liquid tank,
through the evaporator, and back to the compressor. The refrigerant evaporation through the evaporator coil is
controlled by an externally equalized expansion valve, located inside the evaporator case.
FREEZE PROTECTION (WITH GASOLINE ENGINE: CWV-615M COMPRESSOR)
Under usual operating conditions, when the A/C is switched on, the compressor runs continuously, and the
evaporator pressure, and therefore, temperature is controlled by the V-6 variable displacement compressor to
prevent freeze up.
Refrigerant System ProtectionEJS000TE
REFRIGERANT PRESSURE SENSOR (WITH GASOLINE ENGINE: CWV-615M COMPRESSOR)
The refrigerant system is protected against excessively high- or low-pressures by the refrigerant pressure sen-
sor, located on the liquid tank. If the system pressure rises above, or falls below the specifications, the refriger-
ant pressure sensor detects the pressure inside the refrigerant line and sends the voltage signal to the ECM.
ECM makes the A/C relay go OFF and stops the compressor when pressure on the high-pressure side
detected by refrigerant pressure sensor is over about 2,746 kPa (27.46 bar, 28 kg/cm
2 , 398 psi), or below
about 134 kPa (1.34 bar, 1.4 kg/cm
2 , 20 psi).
DUAL-PRESSURE SWITCH (WITH DIESEL ENGINE: DKV-11G COMPRESSOR)
The refrigerant system is protected against excessively high- or low-pressures by the dual-pressure switch,
located on the liquid tank. If the system pressure rises above or falls below the specifications, the dual-pres-
sure switch opens to interrupt the compressor operation.
PRESSURE RELIEF VALVE (WITH GASOLINE ENGINE: CWV-615M COMPRESSOR)
The refrigerant system is also protected by a pressure relief valve, located in the rear head of the compressor.
When the pressure of refrigerant in the system increases to an unusual level [more than 3,727 kPa (37.27 bar,
38 kg/cm
2 , 540 psi)], the release port on the pressure relief valve automatically opens and releases refriger-
ant into the atmosphere.
RJIA0676E
PS-1
POWER STEERING SYSTEM
G STEERING
CONTENTS
C
D
E
F
H
I
J
K
L
M
SECTION PS
A
B
PS
POWER STEERING SYSTEM
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Precautions for Steering System .............................. 3
PREPARATION ........................................................... 4
Special Service Tools [SST] ..................................... 4
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING ................................................ 5
NVH Trouble shooting Chart .................................... 5
POWER STEERING FLUID ........................................ 6
Checking Fluid Level ................................................ 6
Checking Fluid Leakage ........................................... 6
Air Bleeding Hydraulic System ................................. 6
STEERING WHEEL .................................................... 8
On-Vehicle Inspection and Service .......................... 8
CHECKING CONDITION OF INSTALLATION ...... 8
CHECKING STEERING WHEEL PLAY ................ 8
CHECKING NEUTRAL POSITION STEERING
WHEEL ................................................................. 8
CHECKING STEERING WHEEL TURNING
FORCE .................................................................. 8
CHECKING FRONT WHEEL TURNING ANGLE ..... 9
Removal and Installation ........................................ 10
REMOVAL ........................................................... 10
INSTALLATION ................................................... 10
STEERING COLUMN ................................................11
Removal and Installation ......................................... 11
COMPONENT ...................................................... 11
REMOVAL OF LOWER SHAFT, HOLE COVER,
CLAMP AND HOLE COVER SEAL ..................... 11
INSTALLATION OF LOWER SHAFT, HOLE
COVER, CLAMP AND HOLE COVER SEAL ...... 12
REMOVAL OF STEERING COLUMN ASSEM-
BLY ...................................................................... 12
INSPECTION AFTER REMOVAL ....................... 13
INSTALLATION OF STEERING COLUMN
ASSEMBLY ......................................................... 13INSPECTION AFTER INSTALLATION ................ 13
Disassembly and Assembly .................................... 14
COMPONENT ..................................................... 14
DISASSEMBLY ................................................... 14
INSPECTION AFTER DISASSEMBLY ................ 14
ASSEMBLY ......................................................... 14
INSPECTION AFTER ASSEMBLY ...................... 15
POWER STEERING GEAR AND LINKAGE ............ 16
Removal and Installation ........................................ 16
COMPONENT ..................................................... 16
REMOVAL ........................................................... 16
INSTALLATION ................................................... 17
Disassembly and Assembly .................................... 18
COMPONENT ..................................................... 18
DISASSEMBLY ................................................... 19
INSPECTION AFTER DISASSEMBLY ................ 20
ASSEMBLY ......................................................... 22
POWER STEERING OIL PUMP ............................... 27
On-Vehicle Inspection and Service ......................... 27
OIL PUMP PULLEY HYDRAULIC PRESSURE
INSPECTION ...................................................... 27
Removal and Installation (QR20DE and QR25DE
Engine Models) ....................................................... 27
REMOVAL ........................................................... 27
INSTALLATION ................................................... 27
Disassembly and Assembly(QR20DE and
QR25DE Engine Models) ....................................... 28
INSPECTION BEFORE DISASSEMBLY ............. 28
DISASSEMBLY ................................................... 28
INSPECTION AFTER DISASSEMBLY ................ 29
ASSEMBLY ......................................................... 29
Removal and Installation (YD22DDTi Engine
Model) ..................................................................... 32
Disassembly and Assembly (YD22DDTi Engine
Model) ..................................................................... 33
INSPECTION BEFORE DISASSEMBLY ............. 33
DISASSEMBLY ................................................... 34
INSPECTION AFTER DISASSEMBLY ................ 35
ASSEMBLY ......................................................... 35
PS-6
POWER STEERING FLUID
POWER STEERING FLUIDPFP:KLF20
Checking Fluid LevelEGS001BV
Check fluid level with engine stopped.
Make sure that fluid level is between MIN and MAX.
Fluid levels at HOT and COLD are different. Do not confuse
them.
CAUTION:
The fluid level should not exceed the MAX line. Excessive
fluid will cause fluid leakage from the cap.
Do not reuse drained power steering fluid.
Recommended fluid is Type DEXRONTM III or equivalent.
Checking Fluid LeakageEGS001BW
Check hydraulic connections for fluid leakage, cracks, damage,
looseness, or wear.
1. Run engine until the fluid temperature reaches 50 to 80° C (122
to 176°F) in reservoir tank, and keep engine speed idle.
2. Turn steering wheel several times from full left stop to full right
stop.
3. Hold steering wheel at each lock position for five seconds and
carefully, check for fluid leakage.
CAUTION:
Do not hold the steering wheel in a locked position for more
than 10 seconds. (There is the possibility that oil pump may
be damaged.)
4. If fluid leakage at connections is noticed, then loosen flare nut and then retighten. Do not overtighten con-
nector as this can damage O-ring, washer and connector.
5. If fluid leakage from oil pump is noticed, check oil pump. Refer to PS-27, "
POWER STEERING OIL
PUMP" .
6. Check steering gear boots for accumulation of fluid indicating from steering gear.
Air Bleeding Hydraulic SystemEGS001BX
If air bleeding is not complete, the following symptoms can be observed.
Bubbles are created in reservoir tank.
Clicking noise can be heard from oil pump.
Excessive buzzing in the oil pump.
NOTE:
Fluid noise may occur in the steering gear or oil pump. This does not affect performance or durability of
the system.
1. Turn steering wheel several times from full left stop to full right stop with engine off.
CAUTION:
Turn steering wheel while filling reservoir tank with fluid so as not to lower fluid level below the
MIN line.
2. Start engine and hold steering wheel at each lock position for 3 seconds at idle to check for fluid leakage.
3. Repeat step 2 above several times at approximately 3 second intervals.
CAUTION:
Do not hold the steering wheel in a locked position for more than 10 seconds. (There is the possi-
bility that oil pump may be damaged.)
4. Check fluid for bubbles and while contamination.HOT : Fluid temperature 50 - 80 °C (122 - 176°F)
COLD : Fluid temperature 0 - 30°C (32 - 86°F)
SGIA0232J
SGIA0506E
PS-8
STEERING WHEEL
STEERING WHEELPFP:48430
On-Vehicle Inspection and ServiceEGS001BY
CHECKING CONDITION OF INSTALLATION
Check installation conditions of steering gear assembly, front suspension, axle and steering column.
Check if movement exists when steering wheel is moved up and down, to the left and right and to the axial
direction.
Check steering gear assembly mounting bolts and nut for looseness. Refer to PS-16, "COMPONENT" .
CHECKING STEERING WHEEL PLAY
Turn steering wheel so that front wheels come to the straight-ahead position. Start engine and lightly turn
steering wheel to the left and right until front wheels start to move. Measure steering wheel movement on
the outer circumference.
When the measurement value is outside the standard value, check backlash for each joint of steering col-
umn and installation condition of steering gear assembly.
CHECKING NEUTRAL POSITION STEERING WHEEL
Make sure that steering gear assembly, steering column and steering wheel are installed in the correct
position.
Perform neutral position inspection after wheel alignment. Refer to FSU-6, "Wheel Alignment" .
Set vehicle to the straight-ahead position and confirm steering wheel is in the neutral position.
Loosen outer socket lock nut and turn inner socket to left and right equally to make fine adjustments if
steering wheel is not in the neutral position.
CHECKING STEERING WHEEL TURNING FORCE
1. Park vehicle on a level and dry surface, set parking brake.
2. Start engine.
3. Bring power steering fluid up to adequate operating temperature. [Make sure temperature of fluid is
approximately 50 to 80°C (122 to 176°F).]
4. Check steering wheel turning force when steering wheel has
been turned 360° from neutral position.
NOTE:
Multiply the distance (L) from the hook of spring scale to the
center of steering wheel by the measurement value with a
spring scale.
Perform the following manner when the guideline value is
hard to be measured.
a. Park vehicle on a level and dry surface, set parking brake.
b. Remove driver air bag module. Refer to SRS-30, "
DRIVER AIR BAG MODULE" .
c. Start engine at idle, then check steering wheel turning force with
pre-load gauge [SST].
5. If steering wheel turning force is out of the specification, check
rack sliding force and relief hydraulic pressure of oil pump.
Regarding relief hydraulic pressure of oil pump, refer to PS-27,
"OIL PUMP PULLEY HYDRAULIC PRESSURE INSPECTION" .
a. Disconnect lower shaft and steering knuckle from steering gear
assembly. Refer to FAX-7, "
Removal and Installation" , PS-11,
"COMPONENT" . Steering wheel axial end play : 0 mm (0 in)
Steering wheel play : 0 - 35 mm (0 - 1.38 in)
Steering wheel
turning force: 36 N (3.7 kg, 8.2 lb) or less
Steering wheel
turning force: 706 N·cm (72 kg-cm, 62 in-lb)
SST491B
SGIA1050J
LT-18
HEADLAMP - XENON TYPE -
Aiming Adjustment of HeadlampEKS00N4Z
PREPARATION BEFORE ADJUSTING
For Details, Refer To The Regulations In Your Own Country.
Before performing aiming adjustment, check the following.
1. Keep all tires inflated to correct pressures.
2. Place vehicle on flat surface.
3. Set that there is no-load in vehicle other than the driver (or equivalent weight placed in driver's position).
Coolant, engine oil filled up to correct level and full fuel tank.
LOW BEAM
1. Turn headlamp low beam ON.
2. Use adjusting screws to perform aiming adjustment.
RH high beam does not operate, but
RH low beam operates.1. Bulb
2. Open in high beam RH circuit
3. Lighting switch
4. Headlamp RH ground circuit1. Check bulb.
2. Check the following.–Harness between headlamp RH and lighting switch for
open circuit.
3. Check lighting switch.
4. Check harness between headlamp RH and ground.
RH low beam does not operate, but
RH high beam operates.1. 20A fuse
2. HID relay RH
3. Open in RH low beam circuit
4. RH low beam ground circuit
5. Xenon bulb
6. HID control unit1. Check 20A fuse (No.51, located in fuse and fusible link
box). Verify battery positive voltage is present at terminal
5 of headlamp RH relay.
2. Check HID relay RH.
3. Check harness between HID relay RH terminal 3 and
headlamp RH terminal 2 for an open circuit.
4. Check harness between headlamp RH and ground.
5. Replace xenon bulb with other side bulb or new one. (If
headlamps illuminate correctly, replace bulb.)
6. Replace HID control unit with other side control unit or
new one. (If headlamps illuminate correctly, replace con-
trol unit.)
High beam indicator does not work.1. Bulb
2. Open in high beam circuit1. Check bulb in combination meter.
2. Check the harness circuit. Symptom Possible cause Repair order
PKIC0981E
HEADLAMP - XENON TYPE -
LT-19
C
D
E
F
G
H
I
J
L
MA
B
LT
ADJUSTMENT USING AN ADJUSTMENT SCREEN (LIGHT/DARK BORDERLINE)
If the vehicle front body has been repaired and/or the headlamp assembly has been replaced, check aiming.
Use the aiming chart shown in the figure.
Basic illumination area for adjustment should be within the range shown on the aiming chart.
Adjust headlamp accordingly.
Aiming Adjustment of Driving LampEKS00N50
Turn aiming adjusting screw to adjust.
For positions of adjusting screws and direction to turn, refer to
the figures.
When adjusting horizontal direction (right and left), turn two
adjusting screws to the same direction.
PREPARATION BEFORE ADJUSTING
For Details, Refer To The Regulations In Your Own Country.
Before performing aiming adjustment, check the following.
1. Keep all tires inflated to correct pressures.
2. Place vehicle on flat surface.
3. Set that there is no-load in vehicle other than the driver (or equivalent weight placed in driver's position).
Coolant, engine oil filled up to correct level and full fuel tank.
PKIC0481E
PKIA3394E
HEADLAMP - CONVENTIONAL TYPE -
LT-35
C
D
E
F
G
H
I
J
L
MA
B
LT
Aiming Adjustment of HeadlampEKS00N5B
PREPARATION BEFORE ADJUSTING
For Details, Refer To The Regulations In Your Own Country.
Before performing aiming adjustment, check the following.
1. Keep all tires inflated to correct pressures.
2. Place vehicle on flat surface.
3. Set that there is no-load in vehicle other than the driver (or equivalent weight placed in driver's position).
Coolant, engine oil filled up to correct level and full fuel tank.
LOW BEAM AND HIGH BEAM
1. Turn headlamp low beam ON.
2. Use adjusting screws to perform aiming adjustment.
High beam indicator does not
work.1. Bulb
2. Grounds M27 and M70
3. Open in high beam circuit1. Check bulb in combination meter.
2. Check grounds M27 and M70.
3. Check the wire between lighting switch terminal 9 and
combination meter terminal 20 for an open circuit.
Driving lamp does not operate,
but high beam LH operates.1. 15A fuse
2. Open in driving lamp switch
3. Driving lamp switch circuit
4. Driving lamp relay-2
5. Open in driving lamp relay-2 circuit
6. Grounds E24 and E50
7. Driving lamp relay-1
8. Open in driving lamp relay-1 circuit
9. Open driving lamp circuit
10.Ground R8
11 . B u l b1. Check 15A fuse (No. 38, located in fuse and fusible
link box). Verify battery positive voltage is present at
terminal 3 of driving lamp relay-1.
2. Check the wire between lighting switch terminal 9 and
driving lamp switch terminal 7 for an open circuit.
3. Check driving lamp switch.
4. Check driving lamp relay-2.
5. Check the wire between driving switch terminal 4 and
driving lamp relay-2 terminal 1 for an open circuit.
Check the wire between driving switch terminal 6 and
driving lamp relay-2 terminal 3 for an open circuit.
Check the wire between lighting switch terminal 9 and
driving lamp relay-2 terminal 5 for an open circuit.
Check the wire between driving lamp relay-1 terminal
2 and driving lamp relay-2 terminal 7 for an open cir-
cuit.
6. Check grounds E24 and E50.
7. Check driving lamp relay-1.
8. Check the wire between lighting switch terminal 9 and
driving lamp relay-1 terminal 1 for an open circuit.
9. Check the wire between driving lamp relay-1 terminal
5 and driving lamp terminal 2 for an open circuit.
10.Check ground R8.
11.Check bulbs. Symptom Possible cause Repair order
PKIC0978E
LT-36
HEADLAMP - CONVENTIONAL TYPE -
ADJUSTMENT USING AN ADJUSTMENT SCREEN (LIGHT/DARK BORDERLINE)
If the vehicle front body has been repaired and/or the headlamp assembly has been replaced, check aiming.
Use the aiming chart shown in the figure.
Basic illumination area for adjustment should be within the range shown on the aiming chart.
Adjust headlamp accordingly.
CAUTION:
Be sure aiming switch is set to “0” when performing aiming adjustment.
Aiming Adjustment of Driving LampEKS00N5C
Turn aiming adjusting screw to adjust.
For positions of adjusting screws and direction to turn, refer to
the figures.
When adjusting horizontal direction (right and left), turn two
adjusting screws to the same direction.
PREPARATION BEFORE ADJUSTING
For Details, Refer To The Regulations In Your Own Country.
Before performing aiming adjustment, check the following.
1. Keep all tires inflated to correct pressures.
2. Place vehicle on flat surface.
3. Set that there is no-load in vehicle other than the driver (or equivalent weight placed in driver's position).
Coolant, engine oil filled up to correct level and full fuel tank.
PKIC0481E
PKIA3394E