sensor ISUZU AXIOM 2002 Service Owner's Guide

1A±100
HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
Chart 3: Sun Sensor
D08R200059
StepActionValue(s)Ye sNo
1Disconnect the sun sensor connector. (No.I±15)
Is performance of the sun sensor normal? (Refer to the
later section on individual inspection)ÐGo to Step 2
Replace the
sun sensor.
2Is there continuity between the harness side connector
terminal No.I20±3 and No.I15±2?
ÐGo to Step 4Go to Step 4
3Repair an open circuit between terminal No.I20±3 and
No.I15±2.
Is the action complete?
ÐGo to Step 2Ð
4Is there continuity between the harness side connector
terminal No.I20±11 and No.I15±1?
ÐGo to Step 6Go to Step 5
5Repair an open circuit between terminal No.I20±11 and
I15±1.
Is the action complete?
ÐGo to Step 4Ð
6Replace the auto air conditioner control unit.
Is the action complete?
ÐVerify repairÐ

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
1A±109
Chart B: Mode Actuator Control Failure
StepActionValue(s)Ye sNo
1Turn on the ignition switch (the engine is run).
Dose the mode actuator fully stroke when the defrost
mode and the vent mode are selected?
ÐGo to Step 3Go to Step 2
2Repair or replace the mode door or the link unit.
Is the action complete?
ÐGo to Step 1Ð
3Is there continuity between the harness side connector
terminal No.C42±9 and No.I20±11?
ÐGo to Step 5Go to Step 4
4Repair an open circuit between terminal No.C42±9 and
No.I20±11.
Is the action complete?
ÐGo to Step 3Ð
5Is there continuity between the harness side connector
terminal No.C42±3 and No.I20±10?
ÐGo to Step 7Go to Step 6
6Repair an open circuit between terminal No.C42±3 and
No.I20±10.
Is the action complete?
ÐGo to Step 5Ð
7Is there continuity between harness side connector
terminal No.C42±4 and No.I20±8?
ÐGo to Step 9Go to Step 8
8Repair an open circuit between terminal No.C42±4 and
No.I20±8.
Is the action complete?
ÐGo to Step 7Ð
9Is sum of the voltage between the following harness
side connector terminal approximately 5V? Voltage
between No.I20±8 and No.I20±10 plus voltage
between No.I20±8 and No.I20±11
5VGo to Step 11Go to Step 10
10Replace the actuator.
Is the action complete?
ÐVerify repairÐ
11Dose the mode actuator work normally through manual
operation?
ÐGo to Step 13Go to Step 12
12Replace the sensor.
Is the action complete?
ÐVerify repairÐ
13Replace the auto air conditioner control unit.
Is the action complete?
ÐVerify repairÐ

1A±118
HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
Individual Inspection
In Car Sensor
1. Disconnect the in car sensor connector (I±17).
2. Measure resistance between the in car sensor side
terminal No.I17±3 and No.I17±4.
C01R200015
Sun Sensor
1. Disconnect the sun sensor connector (I±15).
2. Measure the current value on the sun sensor when
placed it approximately 15 cm away from 60W
incandescent lamp.
D06R200001
Ambient Sensor
1. Disconnect the connector (C±19) on the ambient
sensor.
2. Measure resistance between the ambient sensor side
terminals.
C01R200014

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
1A±119
Power Transistor
1. Remove the power transistor connector (C±34) from
the evaporator assembly.
2. Check the conduction between the power transistor
side terminals.
C01R200006
MAX HI Relay
1. Remove the MAX ± HI relay connector (C±35) from
the blower assembly.
2. Check the conduction between the MAX ± HI relay
side terminals.
C01R200011
In Car Sensor
1. Turn on the ignition switch (the engine is started).
Start the air conditioner in ªAutoº.
2. Make sure that the in car sensor suctions cigarette
smokes and such.
In Car Sensor
1. Dismount the in car sensor from the automatic
heater/air conditioner control unit. Connect (+) end
and (±) end of the battery to the aspirator motor side
terminals No.I17±1 and No.I17±2, respectively, then
check if the motor runs normally.
C01R200010

1A±122
HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
In Car Sensor
865R200001
Legend
(1) Meter Cluster
(2) In Car Sensor
Removal
1. Disconnect the battery ground cable.
2. Remove the meter cluster.

Refer to
Instrument Panel Assembly in Body
Structure section.
3. Remove the in car sensor.
Installation
To install, follow the removal step in the reverse order.
Ambient Sensor
875R200018
Legend
(1) Ambient Sensor
(2) Ambient Sensor Connector
(3) Horn (LH)
Removal
1. Disconnect the battery ground cable.
2. Remove the horn (LH).
3. Disconnect the ambient sensor connector.
4. Remove the ambient sensor.
Installation
To install, follow the removal step in the reverse order.

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
1A±123
Sun Sensor
865R200002
Legend
(1) Sun Sensor
(2) Center Cluster Upper
Removal
1. Disconnect the battery ground cable.
2. Remove the center cluster upper.
3. Disconnect the sun sensor connector.
4. Remove the sun sensor.
Installation
To install, follow the removal step in the reverse order.
Duct Sensor
874R200010
Legend
(1) Sensor Part
(2) Evaporator Core
(3) Duct Sensor Assembly
(4) Evaporator Assembly
Removal
1. Disconnect the battery ground cable.
2. Remove the evaporator assembly.

Refer to
evaporator assembly in this section.
3. Remove the duct sensor assembly.
Installation
To install, follow the removal step in the reverse order.

3C±10FRONT SUSPENSION
Knuckle
Knuckle and Associated Parts
410RW006
Legend
(1) Torsion Bar
(2) Lower Ball Joint, Nut and Cotter Pin
(3) Back Plate
(4) Knuckle Assembly
(5) Knuckle(6) Needle Bearing (4WD MODEL)
(7) Thrust Washer (4WD MODEL)
(8) Oil Seal (4WD MODEL)
(9) Upper Ball Joint, Nut and Cotter Pin
(10) Wheel Speed Sensor
Removal
1. Raise the vehicle and support the frame with suitable
safety stands.
2. Remove wheel and tire assembly. Refer to
Wheel in
this section.
3. Remove the brake caliper. Refer to Disc Brakes in
Brake section.
4. Remove the hub assembly. Refer to Front Hub and
Disk in this section.
5. Remove tie±rod end from the knuckle. Refer to Power
Steering Unit in Steering section.
6. Remove the speed sensor from the knuckle.
7. Loosen torsion bar by height control arm adjust bolt,
then remove torsion bar. Refer to
Torsion Bar in this
section.
8. Remove wheel speed sensor.

3C±12FRONT SUSPENSION
2. Apply multipurpose type grease to the thrust washer,
and install washer with chamfered side facing knuckle
(Except 2WD model).
3. Use a new oil seal, and apply multipurpose type
grease to the area surrounded by the lip (approx. 2 g).
Then use installer J±36837 and J±8092 to install oil
seal. After fitting the oil seal to the installer, drive it to
the knuckle using a hammer or bench press until the
tool front face contacts with the thrust washer (Except
2WD model).
901RW167
4. Install knuckle assembly.
5. Install upper ball joint and tighten the nut to the
specified torque, with just enough additional torque to
align cotter pin holes. Install new cotter pin.
Torque: 98 N´m (72 lb ft)
6. Install lower ball joint and tighten the nut to the
specified torque, with just enough additional torque to
align cotter pin holes. Install new cotter pin.
Torque: 147 N´m (108 lb ft)
7. Install back plate.
8. Install wheel speed sensor.
9. Install torsion bar, refer to
Torsion Bar in this section.
NOTE: A d j u s t t h e t r i m h e ight. Refer to Front End
Alignment Inspection and Adjustment in Steering.

FRONT SUSPENSION3C±13
Upper Control Arm
Upper Control Arm and Associated Parts
450R200004
Legend
(1) Bolt and Plate
(2) Camber Shims
(3) Caster Shims
(4) Nut Assembly
(5) Upper Control Arm Assembly
(6) Fulcrum Pin(7) Bushing
(8) Plate
(9) Nut
(10) Speed Sensor Cable
(11) Nut and Cotter Pin
(12) Upper Ball Joint
Removal
1. Raise the vehicle and support the frame with suitable
safety stands.
2. Remove wheel and tire assembly. Refer to
Wheel in
this section.
3. Remove the brake caliper and disconnect brake pipe.
Refer to
Disc Brakes in Brake section.
4. Support lower control arm with a jack.
5. Remove speed sensor cable.
6. Remove nut and cotter pin then use remover
J±36831.

FRONT SUSPENSION3C±15
901RW159
3. Install plate.
4. Install nut and tighten fulcrum pin nut finger±tight.
NOTE: Torque fulcrum pin nut after adjusting buffer
clearance.
Buffer clearance: 15 mm (0.59 in)
Torque: 108 N´m (80 lb ft)
450R200002
5. Install upper control arm assembly with the fulcrum
pin projections turned inward.
450RS013
Legend
(1) Projection
(2) Outward
6. Install the caster shims(2) between the chassis frame
and fulcrum pin.
7. Install the camber shims(1) between the chassis
frame and fulcrum pin.
450RS014
8. Install nut assembly.
9. Install bolt and plate, then tighten the bolt to the
specified torque.
Torque: 152 N´m (112 lb ft)
10. Install upper ball joint and tighten it to the specified
torque.
Torque: 57 N´m (42 lb ft)
11. Install nut and cotter pin then tighten the nut to the
specified torque, with just enough additional torque to
align cotter pin holes. Install new cotter pin.
Torque: 98 N´m (72 lb ft)
12. Install speed sensor cable.