sensor ISUZU AXIOM 2002 Service Repair Manual

METER AND GAUGE8E±1
AXIOM
BODY AND ACCESSORIES
METER AND GAUGE
CONTENTS
Service Precaution 8E±1. . . . . . . . . . . . . . . . . . . . . .
General Description 8E±1. . . . . . . . . . . . . . . . . . . . .
Meter Assembly 8E±2. . . . . . . . . . . . . . . . . . . . . . . . .
General Description 8E±2. . . . . . . . . . . . . . . . . . . . .
Layout for Meters/Gauges, Warning Lights,
Indicator Lights and Illumination Lights 8E±2. . .
Table for Meter/Gauge Connector Terminal
Connections 8E±4. . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 8E±6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8E±6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warning Light Bulb and Indicator Light Bulb 8E±6. Removal 8E±6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8E±6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
A/T Shift Indicator Light Bulb 8E±7. . . . . . . . . . . . . .
Removal 8E±7. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8E±8. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vehicle Speed Sensor 8E±9. . . . . . . . . . . . . . . . . . .
Removal 8E±9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8E±9. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Tank Unit 8E±9. . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 8E±9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Main Data and Specifications 8E±10. . . . . . . . . . . . .
Service Precaution
WARNING: THIS VEHICLE HAS A SUPPLEMENTAL
RESTRAINT SYSTEM (SRS). REFER TO THE SRS
COMPONENT AND WIRING LOCATION VIEW IN
ORDER TO DETERMINE WHETHER YOU ARE
PERFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING. WHEN YOU
ARE PERFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING, REFER TO
THE SRS SERVICE INFORMATION. FAILURE TO
FOLLOW WARNINGS COULD RESULT IN POSSIBLE
AIR BAG DEPLOYMENT, PERSONAL INJURY, OR
OTHERWISE UNNEEDED SRS SYSTEM REPAIRS.
CAUTION: Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
ISUZU will call out those fasteners that require a
replacement after removal. ISUZU will also call out
the fasteners that require thread lockers or thread
sealant. UNLESS OTHERWISE SPECIFIED, do not
use supplemental coatings (Paints, greases, or other
corrosion inhibitors) on threaded fasteners or
fastener joint interfaces. Generally, such coatings
adversely affect the fastener torque and the joint
clamping force, and may damage the fastener. When
you install fasteners, use the correct tightening
sequence and specifications. Following these
instructions can help you avoid damage to parts and
systems.
General Description
The circuit consists of the starter switch, meter assembly,
vehicle speed sensor, transmission switch, lighting
switch, turn signal switch, thermo unit, oil pressure unit,
Powertrain Control Module (PCM), fuel tank unit, 4WD
switch, oil pressure switch, parking brake switch, brake
fluid switch, seat belt switch, illumination controller, meter
and ambient sensor.

METER AND GAUGE8E±5
Connector A
TerminalFunction
1Ð
2Intelligent suspension indicator light
3TOD indicator light ªRearº
4Ð
5TOD indicator light ªAUTOº
6Ð
7TOD indicator light ªFrontº
8A/T shift indicator light ª3º
9A/T shift indicator light ªDº
10A/T shift indicator light ª2º
11SRS ± air bag warning light
12Ground
13Battery
14Stater switch
15A/T oil temperature warning light
16Seat belt indicator light
17Charge warning light
18Ð
19Ð
20Ð
21A/T shift indicator light ªLº
22ABS warning light
23Ð
24Ð
25Reduced power warning light
26Oil pressure warning light
27Check trans warning light
28MIL(check engine) warning light
29Check TOD
30Engine coolant temperature gauge
Connector B
TerminalFunction
1A/T shift indicator light ªRº
2A/T shift indicator light
3A/T shift indicator light ªNº
4A/T shift indicator light ªPº
5Illumination light
6Engine revolution pulse
7Speed sensor pulse
8Turn signal indicator light (LH)
9Brake warning light
10High beam indicator light (+)
11High beam indicator light (±)
12Turn signal indicator light (RH)
13Turn signal indicator light
14Ð
15Illumination light
16Ground
Connector C
TerminalFunction
1Starter switch
2Ð
3Fuel gauge
4Low fuel warning light
5Cruise set indicator light
6Ð
7Ð
8Ð
9Ð
10Sport mode indicator light
11Ð
12Winter drive indicator light
13Power drive indicator light
14Ð

METER AND GAUGE8E±9
Vehicle Speed Sensor
Removal
1. Disconnect the battery ground cable.
2. Remove the vehicle speed sensor(1).

Disconnect the connector.

Rotate the sensor counterclockwise.
225R200001
Installation
To install, follow the removal steps in the reverse order,
noting the following point.
1. Tighten the vehicle speed sensor to the specified
torque.
Torque: 25 N´m (18 lb ft)
Fuel Tank Unit
Removal
Refer to Engine Fuel section.

8E±10METER AND GAUGE
Main Data and Specifications
Torque Specifications
ApplicationN´mLb FtLb In
Vehicle Speed Sensor Fixing2720Ð

SUPPLEMENTAL RESTRAINT SYSTEM9J±9
Light blue color for driver air bag assembly.
Light blue color for passenger air bag assembly.
Use only the air bag assembly for AXIOM (UP) mod-
els.
CAUTION: Proper operation of the sensors and
Supplemental Restraint System (SRS) requires that
any repairs to the vehicle structure return it to the
original production configuration. Deployment
requires, at a minimum, replacement of the SDM, air
bag assembly and dimensional inspection of the
steering column. Any visible damage to the SDM
mounting bracket (s) requires replacement, and the
steering column must be dimensionally inspected,
whether deployment occurred or not.
Accident With Deployment ± Component
Replacement and Inspections
Certain SRS components must be replaced or inspected
for damage after a frontal crash involving air bag
deployment. Those components are:

Air bag assembly

SDM
CAUTION: Refer to ªSDM Replacement Guidelinesº
below for important information on SDM
replacement in both deployment and non
deployment crashes.

SRS coil assemblyÐInspect wiring and connector for
any signs of scorching, melting, or damage due to
excessive heat. Replace if damaged. Refer to SRS
coil assembly in this section.
Accident With or Without
DeploymentÐComponent Inspection
Certain SRS and restraint system components must be
inspected after any crash, whether the air bag deployed
or not. Those components are:

Steering columnÐDimensionally inspect per
ªChecking Steering Column for Accident Damageº in
3 of this workshop manual.

Knee bolsters and mounting pointsÐ Inspect for any
distortion, bending, cracking, or other damage.

I/P steering column reinforcement plateÐ Inspect for
any distortion, bending, cracking, or other damage.

I/P bracesÐInspect for any distortion, bending,
cracking, or other damage.

Seat belts and mounting pointsÐRefer to ªSeat
Beltsº in 10 of this workshop manual.
SDM Replacement Guidelines
SDM replacement policy requires replacement of SDM,
after crash involving air bag deployment when ªSRS
Warning Lampº turn ªONº, ªSRS Diagnosisº should be
done according to ªSection 9J1º.
Wiring Damage
If any SRS wire harness is damaged, it should be
replaced. Don't repair SRS. It is replace only.
SRS Connector (Plastic Body And
Terminal Metal Pin) Damage
If any connector or terminal in the SRS wire harness
(except pigtails) is damaged, it should be replaced.
SRS Wire Pigtail Damage
If the wiring pigtail (a wire or wires attached directly to the
device, not by a connector) is damaged, the entire
component (with pigtail) must be replaced. Examples of
ªpigtailº components are the driver air bag assembly, the
passenger air bag assembly, and the SRS coil assembly.
On±Vehicle Service
Service Precautions
WARNING: WHEN PERFORMING SERVICE ON OR
AROUND SRS COMPONENTS OR SRS WIRING,
FOLLOW THE PROCEDURES LISTED BELOW TO
TEMPORARILY DISABLE THE SRS. FAILURE TO
FOLLOW PROCEDURES COULD RESULT IN
POSSIBLE AIR BAG DEPLOYMENT, PERSONAL
INJURY OR OTHERWISE UNNEEDED SRS REPAIRS.
The SDM in DriverÐPassenger SRS can maintain
sufficient voltage to cause a deployment for up to 15
seconds after the ignition switch is turned ªOFFº, the
battery is disconnected, or the fuse powering the SDM is
removed.
Many of the service procedures require removal of the
ªSRS±1º fuse, and disconnection of the air bag assembly
from the deployment loop to avoid an accidental
deployment. If the air bag assembly is disconnected from
the deployment loop as noted in the ªDisabling the SRSº
procedure that follows, service can begin immediately
without waiting for the 15 second time period to expire.
Disabling The SRS
Removal
Turn the ignition switch to ªlockº and remove key.
1. Remove SRS fuse SRS±1, from left dash side lower
fuse block or disconnect battery.
2. Disconnect yellow 2±pin connector at the base of
steering column.
3. Remove glove box assembly, Refer to ªPassenger Air
Bag Assembly Replacementº in section 9J±28.
4. Disconnect yellow 2±pin connector behind the glove
box assembly.
CAUTION: With the ªSRS±1º fuse removed and
ignition switch ªONº, ªAIR BAGº warning lamp will
be ªONº. This is normal operation and does not
indicate an SRS malfunction.
Enabling The SRS
Installation
CAUTION: Never use the air bag assembly from
another vehicle and difference model year air bag
assembly.

SUPPLEMENTAL RESTRAINT SYSTEM 9J±10
The air bag assembly has identification colors on the
bar code label as follows.
Light blue color for driver air bag assembly.
Light blue color for passenger air bag assembly.
Use only the air bag assembly for AXIOM (UP) mod-
els.
Turn ignition switch to ªLOCKº and remove key.
1. Connect yellow 2±pin connector passenger air bag
assembly.
2. Install glove box assembly, refer to ªPassenger Air
Bag Assembly Replacementº in section 9J±28.
3. Connect yellow 2±pin connector at the base of
steering column.
4. Install ªAIR BAGº fuse SRS±1 to left dash side lower
fuse block or connect battery.
Turn ignition switch to ªONº and verify that the ªAIR BAGº
warning lamp flashes seven times and then turns ªOFFº If
it does not operate as described, perform the ªSRS
Diagnostic System Checkº in section 9J1±3.
Handling / Installation / Diagnosis
1. Air bag assembly should not be subjected to
temperatures above 93
C (200
F).
2. Air bag assembly, and SDM should not be used if they
have been dropped from a height of 100 centimeters
(3.28 feet).
3. When a SDM is replaced, it must be oriented with the
arrow on the sensor pointing toward the front of the
vehicle. It is very important for the SDM to be located
flat on the mounting surface, parallel to the vehicle
datum line. It is important that the SDM mounting
surface is free of any dirt or other foreign material.
4. Do not apply power to the SRS unless all components
are connected or a diagnostic chart requests it, as this
will set a diagnostic trouble code.
5. The ªSRS Diagnostic System Checkº must be the
starting point of any SRS diagnostics. The ªSRS
Diagnostic System Checkº will verify proper ªAIR
BAGº warning lamp operation and will lead you to the
correct chart to diagnose any SRS malfunctions.
Bypassing these procedures may result in extended
diagnostic time, incorrect diagnosis, and incorrect
parts replacement.
Air Bag Assembly Handling /
Shipping / Scrapping
Live (Undeployed) Air Bag Assembly
Special care is necessary when handling and storing a
live (undeployed) air bag assembly. The rapid gas
generation produced during deployment of the air bag
could cause the air bag assembly, or an object in front of
the air bag assembly, to be thrown through the air in the
unlikely event of an accidental deployment.
827RW009
WARNING: W H E N C A R RY I N G A L I V E A I R B A G
ASSEMBLY, MAKE SURE THE BAG OPENING IS
POINTED AWAY FROM YOU. IN CASE OF AN
ACCIDENTAL DEPLOYMENT, THE BAG WILL THEN
DEPLOY WITH MINIMAL CHANCE OF INJURY.
NEVER CARRY THE AIR BAG ASSEMBLY BY THE
WIRES OR CONNECTOR ON THE UNDERSIDE OF
THE MODULE.
827RS044

SUPPLEMENTAL RESTRAINT SYSTEM 9J±28
damaged, replace them. The steering column and wheel
must be dimensionally checked to determine if they are
damaged. Refer to in this Section 9J±3 of this manual.
Never use SRS parts from another vehicle. This does not
include remanufactured parts purchased from an
authorized Retailer; they may be used for SRS repairs.
Do not attempt to repair the SDM, the SRS harness, the
SRS coil assembly, the air bag assembly, the steeringwheel, or the steering column. Service of these items is
replacement only. Verify replacement part numbers.
CAUTION: P r o p e r o p e r a t i o n o f t h e S D M a n d
Supplemental Restraint System (SRS) requires that
any repairs to the vehicle structure return it to its
original production configuration.
Sensing and Diagnostic Module (SDM)
Service Precautions
WARNING:DURING SERVICE PROCEDURES, BE
VERY CAREFUL WHEN HANDLING SDM. NEVER
STRIKE OR JAR SDM. UNDER SOME
CIRCUMSTANCES, IT COULD CAUSE
DEPLOYMENT AND RESULT IN PERSONAL INJURY
OR IMPROPER OPERATION OF THE
SUPPLEMENTAL RESTRAINT SYSTEM (SRS). SDM
MOUNTING BRACKET BOLTS MUST BE
CAREFULLY TORQUED TO ASSURE PROPER
OPERATION. NEVER POWER UP THE SRS WHEN
SDM IS NOT RIGIDLY ATTACHED TO THE VEHICLE.
THE SDM COULD BE ACTIVATED WHEN POWERED
WHILE NOT RIGIDLY ATTACHED TO THE VEHICLE
WHICH COULD CAUSE DEPLOYMENT AND RESULT
IN PERSONAL INJURY.
WARNING: PROPER OPERATION OF THE SENSING
AND DIAGNOSTIC MODULE (SDM) REQUIRES THE
SDM TO BE RIGIDLY ATTACHED TO THE VEHICLE
STRUCTURE AND THAT THE ARROW ON THE
SENSOR BE POINTING TOWARD THE FRONT OF
THE VEHICLE.
SDM is specifically calibrated and is keyed to the SDM
location SRS wiring harness. Caution should be used to
ensure proper location of the SDM. The keying of the
SDM to its location and wiring harness connectors should
never be modified in the field.
Removal
1. Disable the SRS. (Refer to ªDisable the SRSº in this
manual)
2. Remove dressing panel around the radio and
disconnect cigar lighter harness.
3. Remove the transfer sift lever knob.
4. Remove the center console.
5. Remove three connector from PCM.
6. Remove PCM with bracket.(Fixed four bolts)
7. Remove right side stay between instrument panel
and floor.
8. Remove driver and passenger seat.
9. Turn over carpet to rear side.10. Remove air conditioning duct for rear seat.
(Transform the duct during removing it)
827RW023
11. Pull CPA (1) (Connector Position Assurance±red
color) out and push connector lock down to
disconnect the SDM harness connector (2).
12. Remove the three SDM fixing bolts (4) and remove
SDM (3).
827RW022

9J1±45
RESTRAINT CONTROL SYSTEM
DTC 71 Internal SDM Fault
D09R200001
Circuit Description:
DTC 71 is an indication of a potential internal SDM
malfunction and will set if any of the following conditions
are detected:
1) Deployment or microprocessor energy reserve failure.
2) EEPROM failure.
3) ROM failure.
4) RAM failure.
5) Calibration check sum failure.
6) Deployment switch faults.
7) Accelerometer fault.
8) Arming sensor fault.
9) Diagnostic current faults.
10) DTC 19
11) DTC 25
12) DTC 51
13) DTC 53
DTC Will Set When:
Any of the above indicated malfunctions are detected by
the SDM. The malfunctions described above are tested
mainly during ªContinuous Monitoringº and some ones
run each ignition cycle.
Action Taken:
SDM turns ªONº the ªAIR BAGº warning lamp and sets a
diagnostic trouble code.
DTC Will Clear When:
A scan tool ªClear Codesº commanded is received by the
SDM. Some of the indicated malfunctions will only allow
the ªAIR BAGº warning lamp to go out.
But when DTC 19, 25, 51, 53 are also set, SDM is
Replaced.