2002 ISUZU AXIOM heater

6E±573
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
An open Bank 1 HO2S 1 signal circuit will set a DTC
P0134 and the Tech 2 will display a constant voltage
between 400-500 mV. A constant voltage below 300 mV
in the sensor circuit (circuit grounded) will set DTC
P0131. A constant voltage above 800 mV in the circuit will
set DTC P0132. Faults in the Bank 2 HO2S 1 signal
circuit will cause DTC 0154 (open circuit), DTC P0151
(grounded circuit), or DTC P0152 (signal voltage high) to
set. A fault in the Bank 1 HO2S 1 heater circuit will cause
DTC P0135 to set. A fault in the Bank 2 HO2S 1 heater
circuit will cause DTC P0155 to set. The PCM can also
detect HO2S response problems. If the response time of
an HO2S is determined to be too slow, the PCM will store
a DTC that indicates degraded HO2S performance.
060RY00127
Catalyst Monitor Heated Oxygen Sensors
Three-way catalytic converters are used to control
emissions of hydrocarbons (HC), carbon monoxide (CO),
and oxides of nitrogen (NOx). The catalyst within the
converters promotes a chemical reaction. This reaction
oxidizes the HC and CO present in the exhaust gas and
converts them into harmless water vapor and carbon
dioxide. The catalyst also reduces NOx by converting it to
nitrogen. The PCM can monitor this process using the
Bank 1 HO2S 2 and the Bank 2 HO2S 2 heated oxygen
sensors. The Bank 1 HO2S 1 and the Bank 2 HO2S 1
sensors produce an output signal which indicates the
amount of oxygen present in the exhaust gas entering the
three-way catalytic converter. The Bank 1 HO2S 2 and
the Bank 2 HO2S 2 sensors produce an output signal
which indicates the oxygen storage capacity of the
catalyst. This indicates the catalyst's ability to efficiently
convert exhaust gases. If the catalyst is operating
efficiently, the Bank 1 HO2S 1 and the Bank 2 HO2S 1
signals will be more active than the signals produced by
the Bank 1 HO2S 2 and the Bank 2 HO2S 2 sensors.
The catalyst monitor sensors operate the same as the
fuel control sensors. The Bank 1 HO2S 2 and the Bank 2
HO2S 2 sensors' main function is catalyst monitoring, but
they also have a limited role in fuel control. If a sensor
output indicates a voltage either above or below the 450
mV bias voltage for an extended period of time, the PCMwill make a slight adjustment to fuel trim to ensure that
fuel delivery is correct for catalyst monitoring.
A problem with the Bank 1 HO2S 2 signal circuit will set
DTC P0137, P0138, or P0140, depending on the specific
condition. A problem with the Bank 2 HO2S 2 signal
circuit will set DTC P0157, P0158, or P0160, depending
on the specific condition. A fault in the heated oxygen
sensor heater element or its ignition feed or ground will
result in lower sensor response. This may cause
incorrect catalyst monitor diagnostic results.
TS24067
TS23365A
Legend
(1) Bank 1 Sensor 1 (Fuel Control)
(2) Catalytic Converter
(3) Bank 1 Sensor 2 (Catalyst Monitor)
(4) Bank 2 Sensor 1 (Fuel Control)
(5) Bank 2 Sensor 2 (Catalyst Monitor)
Intake Air Temperature (IAT) Sensor
The intake air temperature (IAT) sensor is a thermistor
which changes its resistance based on the temperature of
air entering the engine. Low temperature produces a high

LIGHTING SYSTEM8A±1
AXIOM
BODY AND ACCESSORIES
CONTENTS
Lighting System 8A. . . . . . . . . . . . . . . . . . . . . . . . .
Wiper / Washer System 8B. . . . . . . . . . . . . . . . . .
Entertainment 8C. . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring System 8D. . . . . . . . . . . . . . . . . . . . . . . . . .
Meter and Gauge 8E. . . . . . . . . . . . . . . . . . . . . . . Body Structure 8F. . . . . . . . . . . . . . . . . . . . . . . . . .
Seats 8G. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Security and Locks 8H. . . . . . . . . . . . . . . . . . . . . .
Sunroof / Convertible Top 8I. . . . . . . . . . . . . . . .
Exterior / Interior Trim 8J. . . . . . . . . . . . . . . . . . . .
LIGHTING SYSTEM
CONTENTS
Service Precaution 8A±2. . . . . . . . . . . . . . . . . . . . . .
Headlight Bulb 8A±3. . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 8A±3. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±3. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlight Assembly 8A±4. . . . . . . . . . . . . . . . . . . . .
Removal 8A±4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±4. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlight Adjustment 8A±4. . . . . . . . . . . . . . . . . .
Side Marker Light Bulb 8A±6. . . . . . . . . . . . . . . . . . .
Removal 8A±6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Taillight Bulb 8A±7. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 8A±7. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±7. . . . . . . . . . . . . . . . . . . . . . . . . . . .
License Plate Light Bulb 8A±8. . . . . . . . . . . . . . . . . .
Removal 8A±8. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±8. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stoplight Bulb 8A±8. . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal and Installation 8A±8. . . . . . . . . . . . . . .
High Mounted Stoplight Assembly 8A±9. . . . . . . . .
Removal 8A±9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±9. . . . . . . . . . . . . . . . . . . . . . . . . . . .
High Mounted Stoplight Bulb 8A±9. . . . . . . . . . . . . .
Removal 8A±9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±9. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Backup Light Bulb 8A±10. . . . . . . . . . . . . . . . . . . . . . .
Removal 8A±10. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±10. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Turn Signal Light Bulb 8A±10. . . . . . . . . . . . . .
Removal and Installation 8A±10. . . . . . . . . . . . . . .
Rear Turn Signal Light Bulb 8A±11. . . . . . . . . . . . . .
Removal 8A±11. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±11. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dome Light Bulb 8A±11. . . . . . . . . . . . . . . . . . . . . . . .
Removal 8A±11. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±11. . . . . . . . . . . . . . . . . . . . . . . . . . . . Map Light Bulb 8A±12. . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 8A±12. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±12. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Courtesy Light Bulb 8A±12. . . . . . . . . . . . . . . . . . . . . .
Removal 8A±12. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±12. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Luggage Room Light Bulb 8A±13. . . . . . . . . . . . . . . .
Removal 8A±13. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±13. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shift Lever Illumination Light Bulb (A/T) 8A±13. . . .
Removal 8A±13. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±13. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vanity Mirror Illumination Light Bulb 8A±14. . . . . . . .
Removal 8A±14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±14. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Switch Unit Assembly Illumination
Light Bulb (Power/Winter & Intelligent
Suspension Switch) 8A±14. . . . . . . . . . . . . . . . . . . . .
Removal 8A±14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±14. . . . . . . . . . . . . . . . . . . . . . . . . . . .
TOD Switch Illumination Light Bulb 8A±15. . . . . . . .
Removal 8A±15. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±15. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise Control Main Switch Illumination
Light Bulb 8A±15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 8A±15. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±15. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Wiper and Washer Switch Illumination
Light Bulb 8A±16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 8A±16. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±16. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seat Heater Switch Illumination Light Bulb 8A±16. .
Removal 8A±16. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8A±16. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starter Switch 8A±17. . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal and Installation 8A±17. . . . . . . . . . . . . . .
Lighting Switch (Combination Switch) 8A±17. . . . . .

8A±16LIGHTING SYSTEM
Rear Wiper and Washer Switch Illumination Light Bulb
Removal
1. Disconnect the battery ground cable.
2. Remove the lower cover assembly (3).

Remove the dash side trim cover.
3. Remove the bulb (1).

Disconnect the connector.

Remove the rear wiper and washer switch (2).
825R200037
Installation
To install, follow the removal steps in the reverse order.
Seat Heater Switch Illumination Light Bulb
Removal
1. Disconnect the battery ground cable.
2. Remove the center consol assembly (3).

Refer to
Consol in Body Structure section.
3. Remove the bulb (2).

Disconnect the seat heater switch connector.

Remove the seat heater switch (1).
825R200034
Installation
To install, follow the removal steps in the reverse order.

8D±1
WIRING SYSTEM
AXIOM
BODY AND ACCESSORIES
WIRING SYSTEM
CONTENTS
Fuse, Relay and Diode 8D±2. . . . . . . . . . . . . . . . . . .
Relay / Fuse Box Location 8D±2. . . . . . . . . . . . . .
Relay / Fuse Box (Instrument Panel) 8D±3. . . . .
Relay / Fuse Box (Engine Room) 8D±4. . . . . . . .
Circuit Diagram 8D±5. . . . . . . . . . . . . . . . . . . . . . . . .
Fuse Block Circuit 8D±5. . . . . . . . . . . . . . . . . . . . .
Ground Location (Engine Room) 8D±6. . . . . . . .
Ground Location (Cabin) 8D±7. . . . . . . . . . . . . . .
Starter and Generator 8D±8. . . . . . . . . . . . . . . . . .
PCM±1 8D±9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PCM±2 8D±10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlight and Fog Light 8D±11. . . . . . . . . . . . . . . .
Turn, Hazard, Stop, Back Up, Horn and
A/T Shift Lock 8D±12. . . . . . . . . . . . . . . . . . . . . . . .
Dome Light, Luggage Room Light, Courtesy
Light, Spot Light, and Warning Buzzer 8D±13. . .
Power Window and Door Lock 8D±14. . . . . . . . . .
Alarm and Relay Control Unit 8D±15. . . . . . . . . . . Rear Wiper/Washer and Rear Defogger 8D±16. .
Audio, Clock, Cigarette Lighter and
ACC Socket 8D±17. . . . . . . . . . . . . . . . . . . . . . . . . .
MID 8D±18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door Mirror 8D±19. . . . . . . . . . . . . . . . . . . . . . . . . . .
Meter 8D±20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Anti-theft with Keyless Entry 8D±21. . . . . . . . . . . .
Air Conditioning 8D±22. . . . . . . . . . . . . . . . . . . . . . .
ABS 8D±23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SRS±Air Bag 8D±24. . . . . . . . . . . . . . . . . . . . . . . . . .
Intelligent Suspension 8D±25. . . . . . . . . . . . . . . . . .
T.O.D 8D±26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sunroof 8D±27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Illumination Light 8D±28. . . . . . . . . . . . . . . . . . . . . .
Windshield Wiper and Washer 8D±29. . . . . . . . . .
Power Seat 8D±30. . . . . . . . . . . . . . . . . . . . . . . . . . .
Seat Heater 8D±31. . . . . . . . . . . . . . . . . . . . . . . . . . .

8D±4
WIRING SYSTEM
Relay / Fuse Box (Engine Room)
D08R200046
Legend
(1) Fuse/Relay Box
(2) Option Box
(3) Diode (Not Used)
(4) Diode
(5) Heater Relay
(6) A/C Compressor Relay
(7) Headlamp Relay RH
(8) Not Used
(9) Fog Lamp Relay
(10) Not Used
(11) Not Used
(12) Thermo Relay
(13) Headlamp Relay LH
(14) Starter Relay
(15) ECM Main
(16) Fuel Pump Relay
(17) Not Used
(18) IG.1 (+B.1 60A)
(19) Main (100A)(20) ECM (30A)
(21) ABS (50A)
(22) IG.2 (+B.2 50A)
(23) Condenser Fan (30A)
(24) Hazard (15A)
(25) Horn (10A)
(26) ACG±S (10A)
(27) Seat Heater (15A)
(28) Blower (15A)
(29) Blower (15A)
(30) A/C (10A)
(31) Headlamp±LH (20A)
(32) Headlamp±RH (20A)
(33) Fog Lamp (15A)
(34) O
2 Sensor (20A)
(35) Fuel Pump (20A)
(36) ECM (15A)
(37) TOD (15A)
(38) Intelligent Suspension Relay (30A)
(39) Condenser Fan Relay

8D±31
WIRING SYSTEM
Seat Heater
D08R200014

8G±4SEATS
Power Seat Assembly
Power Seat Assembly and Associated Parts
750R200009
Legend
(1) Headrest
(2) Guide Holder
(3) Seat Back Frame Assembly
(4) Connecting Pipe
(5) Seat Back Pad
(6) Seat Heater (Required Option)
(7) Reclining Device Cover
(8) Reclining Device
(9) Outer Side Cover
(10) Reclining Switch Knob
(11) Slide Switch Knob
(12) Power Lumbar Switch (Driver's Side)
(13) Power Seat Switch
(14) Seat Cushion Frame Assembly(15) Power Seat Harness
(16) Adjuster Bracket Rear Cover
(17) Outer Seat Adjuster Assembly
(18) Adjuster Bracket Front Cover
(19) Front Cover
(20) Sliding Motor Cable
(21) Inner Seat Adjuster Assembly
(22) Seat Cushion Pad
(23) Seat Cushion Assembly/Seat Cushion Trim
Cover
(24) Seat Belt Buckle Assembly
(25) Inner Side Cover
(26) Power Lumbar Support Assembly (Driver's
Side)
(27) Seat Back Assembly/Seat Back Trim Cover

SEATS8G±5
Removal
1. Remove the adjuster bracket rear cover and the fixing
bolts on the rear side of the seat adjuster assembly.

Before removal, slide the power seat assembly
forward.
2. Remove the adjuster bracket front cover and the
fixing bolts on the front side of the seat adjuster
assembly.

Before removal, slide the power seat assembly
backward.
3. Disconnect the battery ground cable.
4. Remove the power seat assembly.

Disconnect the power seat harness connectors and
the seat belt warning connector of the driver side.
CAUTION: When raising power seat assembly (1),
use the handle (2) not the cable (3). A bent cable
causes noise to occur during power seat operation.

Please grip the handle (4).

Don't grip the cable (5).
750R200012
5. Pull the switch knobs out.
6. Remove the outer side cover.

Remove the two fixing screws and disconnect the
power seat switch connector.
7. Remove the power seat switch.

Remove the two fixing screws.
8. Remove the power lumber switch.

Remove the two fixing screws and connectors.
9. Remove the inner side cover.
10. Remove the headrest.
11. Remove the reclining device (2).

Flip up the seat back trim cover (1) in order to
remove the reclining device fixing bolts.

Disconnect the reclining motor harness connector
(3).
760R100037
12. Remove the reclining device covers.
13. Remove the trim cover and pad (Seat back side).
14. Remove the seat heater and connector (seat back
side).
15. Remove the power lumbar support assembly.
16. Remove the guide holder.

Pull the guide holder out by holding the bottom end
of it from the seat back assembly.
17. Remove the seat adjuster assembly.

Remove the four fixing bolts and disconnect the
sliding motor connector.
18. Remove the sliding motor cable (2).

Remove the nuts of each side.
CAUTION: Be sure to maintain the same position for
both outer and inner seat adjust assembly (1).
760R100038