ignition ISUZU AXIOM 2002 Service Owner's Manual

POWER±ASSISTED STEERING SYSTEM2A±35
Installation
1. Install steering wheel by aligning the setting marks
made when removing.
CAUTION: Never apply force to the steering wheel
shaft using a hammer or other impact tools in an
attempt to remove the steering wheel. The steering
shaft is designed as an energy absorbing unit.
2. Tighten the steering wheel fixing nut to the specified
torque.
Torque: 34 N´m (25 lb ft)
3. Connect horn lead.
4. Support the module and carefully connect the SRS
connector.
NOTE: Pass the lead wire through the tabs on the plastic
cover (wire protector) of inflator to prevent lead wire from
being pinches.
5. Tighten bolts to specified torque.
Torque: 9 N´m (78 lb in)
6. Connect the yellow 2-way SRS connector located
under the steering column.
7. Connect the battery ª±º terminal cable.
8. Turn the ignition switch to the ªONº position and
observe the warning lamp. The lamp should flash 7
times. If the lamp does not operate correctly, refer to
Restraints section.

2A±36
POWER±ASSISTED STEERING SYSTEM
Combination Switch
Combination Switch and Associated Parts
431R200003
Legend
(1) Steering Column Cover
(2) Steering Wheel
(3) Inflator Module(4) Combination Switch and SRS Coil Assembly
(5) Instrument Panel Lower Cover
(6) Driver Knee Bolster (reinforcement)
Removal
1. Turn the steering wheel so that the vehicle's wheels
are pointing straight ahead.
2. Turn the ignition switch to ªLOCKº.
3. Disconnect the battery ground cable, and wait at least
5 minutes.
4. Disconnect the yellow 2-way SRS connector located
under the steering column.CAUTION: T h e w heels of the vehicle must be
straight ahead and the steering column in the
ªLOCKº position before disconnecting the steering
wheel. Failure to do so will cause the coil assembly
to become uncentered which will cause damage to
the coil assembly.
5. Remove the engine hood opening lever, then remove
instrument panel lower cover.
6. Remove the driver knee bolster (reinforcement).

POWER±ASSISTED STEERING SYSTEM2A±39
2. When installing the steering column cover, be sure to
route each wire harness as illustrated so that the
harnesses do not catch on any moving parts.
825RW017
Legend
(1) Steering Column Cover
(2) Starter Switch Harness
(3) Combination Switch Harness
(4) Inflator Module Harness
3. Align the setting marks made when removing then
install steering wheel.
CAUTION: Never apply force to the steering wheel
shaft using a hammer or other impact tools in an
attempt to remove the steering wheel. The steering
shaft is designed as an energy absorbing unit.
4. Tighten the steering wheel fixing nut to the specified
torque.
Torque: 34 N´m (25 lb ft)
5. Support the inflator module and carefully connect the
SRS connector and horn lead.
NOTE: Pass the lead wire through the tabs on the plastic
cover (wire protector) of inflator to prevent lead wire from
being pinched.
6. Tighten bolts to specified torque.
Torque: 9 N´m (78 lb in)
7. Install driver knee bolster (reinforcement).
8. Install instrument panel lower cover then Install the
engine hood opening lever.
9. Connect the SRS connector.
10. Connect the battery ª-º terminal cable.
11. Turn the ignition switch to the ªONº position and
observe the warning lamp. The lamp should flash 7
times. If the lamp does not operate correctly, refer to
Restraints section.

2A±40
POWER±ASSISTED STEERING SYSTEM
Lock Cylinder
Lock Cylinder and Associated Parts
431RX005
Legend
(1) Inflator Module
(2) Steering Wheel
(3) Steering Column Cover
(4) Combination Switch and SRS Coil Assembly
(5) Snap Ring(6) Cushion Rubber
(7) Lock Cylinder Assembly
(8) Instrument Panel Lower Cover
(9) Driver Knee Bolster (reinforcement)
(10) Shift Lock Cable (for A/T)
Removal
1. Turn the steering wheel so that the vehicle's wheels
are pointing straight ahead.
2. Turn the ignition switch to ªLOCKº.
3. Disconnect the battery ground cable, and wait at least
5 minutes.
4. Disconnect the yellow 2-way SRS connector located
under the steering column.CAUTION: T h e w heels of the vehicle must be
straight ahead and the steering column in the
ºLOCKº position before disconnecting the steering
wheel. Failure to do so will cause the coil assembly
to become uncentered which will cause damage to
the coil assembly.
5. Remove the engine hood opening lever and steering
lower cover.
6. Remove driver knee bolster (reinforcement).

POWER±ASSISTED STEERING SYSTEM2A±43
7. When installing the steering column cover, be sure to
wire (through each harness) as illustrated so that the
harnesses starter switch, combination switch and
SRS coil may not catch wiring.
825RW017
Legend
(1) Steering Column Cover
(2) Starter Switch Harness
(3) Combination Switch Harness
(4) Inflator Module Harness
8. Install steering wheel by aligning the setting marks
made during removal.
CAUTION: Never apply force to the steering wheel
shaft using a hammer or other impact tools in an
attempt to remove the steering wheel. The steering
shaft is designed as an energy absorbing unit.
9. Tighten the steering wheel fixing nut to the specified
torque.
Torque: 34 N´m (25 lb ft)
10. Support inflator module and carefully connect the
SRS connector and horn lead, then install inflator
module.
NOTE: Pass the lead wire through the tabs on the plastic
cover (wire protector) of inflator to prevent lead wire from
being pinched.
11. Tighten fixing bolts to specified torque.
Torque: 9 N´m (78 lb in)
12. Install driver knee bolster (reinforcement).
13. Install instrument panel lower cover, then install the
engine hood opening lever.
14. Connect the yellow 2-way SRS connector located
under the steering column.
15. Connect the battery ground cable.
System Inspection
Turn the ignition switch to the ªONº position and observe
the warning lamp. The lamp should flash 7 times. If the
lamp does not operate correctly, refer to
Restraints
section.

2A±44
POWER±ASSISTED STEERING SYSTEM
Steering Column
Steering Column and Associated Parts
431R200002
Legend
(1) Inflator Module
(2) Steering Wheel
(3) Steering Column Cover
(4) Combination Switch and SRS Coil Assembly
(5) Snap Ring
(6) Cushion Rubber(7) Lock Cylinder Assembly
(8) Shift Lock Cable (For A/T)
(9) Steering Column Assembly
(10) Second Steering Shaft
(11) Instrument Panel Lower Cover
(12) Driver Knee Bolster (reinforcement)
Removal
1. Turn the steering wheel so that the vehicle's wheels
are pointing straight ahead.
2. Turn the ignition switch to ªLOCKº.
3. Disconnect the battery ground cable, and wait at least
5 minutes.4. Disconnect the yellow 2-way SRS connector located
under the steering column.
CAUTION: The wheel of the vehicle must be straight
ahead and the steering column in the ªLOCKº
position before disconnecting the steering column
from the steering gear. Failure to do so will cause the
SRS coil assembly to become uncentered which will
cause damage to the SRS coil assembly.

POWER±ASSISTED STEERING SYSTEM2A±49
13. Install steering wheel and align the setting marks
made when removing.
CAUTION: Never apply force to the steering wheel
shaft using a hammer or other impact tools in an
attempt to remove the steering wheel. The steering
shaft is designed as an energy absorbing unit.
14. Tighten the steering wheel fixing nut to the specified
torque.
Torque: 34 N´m (25 lb ft)
15. Support the module and carefully connect the module
connector and horn lead, then install inflator module.
NOTE: Pass the lead wire through the tabs on the plastic
cover (wire protector) of inflator to prevent lead wire from
being pinched.
16. Tighten bolts to specified torque.
Torque: 9 N´m (78 lb in)
17. Install driver knee bolster (reinforcement).
18. Install instrument panel lower cover.
19. Install the engine hood opening lever.
20. Connect the yellow 2-way SRS connector and horn
lead located under the steering column.
21. Connect the battery ground cable.
System Inspection
Turn the ignition switch ªONº and observe if the warning
lamp flashes 7 times. If the warning lamp does not
operate correctly, refer to
Restraints section.

INTELLIGENT SUSPENSION3F±5
Vertical G-Sensor
Front G-sensors installed inside front actuators and the
rear G-sensor installed on the rear left frame side detect
the vehicle vertical gravity and send a signal to the Control
Unit.
Lateral G-Sensor
The G-sensor installed inside the Control Unit detects the
vehicle turning speed and sends a signal to the Control
Unit.
Acronyms and Abbreviations
Several acronyms and abbreviations are commonly used
throughout this section:
BATT
Battery
DLC
Data Link Connector
DTC
Diagnostic Trouble Code
FL
Front Left
FR
Front Right
GND
Ground
HARN
Harness
IG
Ignition
PCM
Powertrain Control Module
RL
Rear Left
RR
Rear Right
SW
Switch
W/L
Warning Lamp
Vout
Voltage output
General Diagnosis
General Information
Intelligent Suspension Control troubles can be classified
into two types, those which can be detected by the
warning lamp and those which can be detected as a
vehicle abnormality by the driver.
In either case, locate the fault in accordance with
theªBASIC DIAGNOSTIC FLOWCHARTº and repair.
Please refer to
Section 3 for the diagnosis of mechanical
troubles such as abnormal noise, vehicle pulls, excessive
tire wear, wheel hop and shimmy, shake or vibration.
Service Precautions
Required Tools and Items:

Box Wrench

Special Tool
Some diagnosis procedures in this section require the
installation of a special tool.
J-39200 High Impedance Multimeter
When circuit measurements are requested, use a
circuit tester with high impedance.
Computer System Service Precautions
The Intelligent Suspension Control interfaces directly
with the Control Unit which is a control computer that is
similar in some regards to the Powertrain Control Module.
These modules are designed to withstand normal current
draws associated with vehicle operation. However care
must be taken to avoid overloading any of the Control Unit
circuits. In testing for opens or shorts, do not ground or
apply voltage to any of the circuits unless instructed to do
so by the appropriate diagnostic procedure. These
circuits should only be tested with a high impedance
multimeter (J-39200) or special tools as described in this
section. Power should never be removed or applied to
any control module with the ignition in the ªONº
position.Before removing or connecting battery cables,
fuses or connectors, always turn the ignition switch to
theªOFFº position.
General Service Precautions
The following are general precautions which should be
observed when servicing and diagnosing the Intelligent
Suspension Control and/or other vehicle systems. Failure
to observe these precautions may result in Intelligent
Suspension Control damage.

If welding work is to be performed on the vehicle using
an electric arc welder, the Control Unit connectors
should be disconnected before the welding operation
begins.

The Control Unit connectors should never be
connected or disconnected with the ignitionªONº.
Parts Handling
Be careful when handling the actuator, control unit, or
G-sensor. They should not be dropped or thrown,
because the semi-conductor G-sensor tip damage may
result.

INTELLIGENT SUSPENSION3F±7
It depends below in the case that the code that also,
shows a malfunction place is added.
F03R200002
Legend
(1) Diagnostic Trouble Code 2
(2) Diagnostic Trouble Code 3 + Position Code 2
Position Code
1: Actuator Front RH, G-sensor Front RH
2: Actuator Front LH, G-sensor Front LH
3: Actuator Rear RH, G-sensor Rear
4: Actuator Rear LH, Lateral G-sensor
2. After this, the warning lamp will be OFF for 3.5
seconds and then will flash each DTC.
a. When there are more than 9 flashes this means
that the indicator is constantly flashing, OFF for
4 seconds ON for 0.5 seconds. In this case there
is no DTC stored in memory.
b. When there are less than 9 flashes you will see
DTC codes in ascending order.
CLEAR DTC
Remark: If you clear the DTC (Diagnosis Trouble Codes)
you will not be able to read any codes recorded during the
last Trouble.
Remark: To be able to use the DTC again to identify a
problem you will need to reproduce the fault or the
problem. This may require a new test drive or just turning
the ignition on (this depends on the nature of the fault).
1. Short the Diagnosis Connector C-39 terminal 3 to
terminal 4 or 5 (ground).

IF it is flashing and the flash is 0.5 seconds ON and 4
seconds OFF without interruption, this means that
there is no DTC. The DTCs are already cleared.
350R200002
2. IF a code is flashed, wait until the lamp is flashing.
3. Conduct brake switch ON/OFF 6 or more times on
condition that one operation is within 2 seconds.

INTELLIGENT SUSPENSION3F±25
DTC6 Stop Lamp Switch Open Circuit or Short
Circuit Description
The brake switch is used to indicate brake pedal status.
The normally opened brake switch signal voltage circuit is
opened.
Brake switch supplies a B+ signal on circuit RED to the
control unit when the brakes are applied. The control unit
uses this signal to work dive control when the brakes are
applied.
Diagnostic Aids

Inspect the wiring for poor electrical connections at
the control unit and brake switch. Look for possible
bent, backed out, deformed or damaged terminals.
Check for weak terminal tension as well. Also check
for a chafed wire that could short to bare metal or
other wiring. Inspect for a broken wire inside the
insulation.

When diagnosing for a possible intermittent short or
open condition, move the wiring harness while
observing test equipment for a change.

Check customer driving habits and/or unusual driving
conditions (i.e. stop and go, highway).

Check brake switch for proper mounting and
adjustment.
DTC6 Stop Lamp Switch Open Circuit or Short
StepActionValue(s)Ye sNo
11. With the engine ªoffº, turn the ignition switch ªonº. If
ABS code is set, check applicable fuse.
2. Apply then release the brake pedal.
Does the brake lamp come on when the brake pedal is
applied and does it come off when the brake pedal is
released?
Ð
Go to
Diagnostic
Aids
Go to Step 2
21. Connect the test light to ground.
2. Back probe ignition feed circuit terminal I±31
terminal 1 at the brake switch.
Is the test light ªonº?
ÐGo to Step 3Go to Step 4
31. Connect the test light to ground.
2. Back probe circuit terminal I±31 terminal 4 at the
brake switch.
Is the test light ªoffº?
ÐGo to Step 7Go to Step 5
4Repair the open in battery feed circuit terminal I±31
terminal 1 to the brake switch.
If fuse is open, check circuit terminal I±31 terminal 4 for
a short to ground.
Is the replacement complete?
ÐGo to Step 13Ð
5Disconnect brake switch connector I±31 and ignition
switch ªonº.
Is the test light ªonº?
ÐGo to Step 8Go to Step 6
6Check the brake switch short (I±31 terminal 1 and I±31
terminal 4).
Was a problem found?
ÐGo to Step 9Go to Step 10
7Check circuit terminal I±31 terminal 4 for a short to
voltage.
Ignition switch ªonº.
Is the test light ªonº?
ÐGo to Step 8Go to Step 10
81. Disconnect the control unit connector C±44.
2. Check circuit terminal I±31 terminal 4 for a short to
voltage.
Was a problem found?
ÐGo to Step 13Go to Step 10