1998 ISUZU TROOPER diagnostic menu

5A±40
BRAKE CONTROL SYSTEM
Diagnosis By ªABSº Warning Light
Illumination Pattern
In the event that there is abnormality in the ªABSº warning
light illumination pattern while the key is in the ON position
or if the warning light is actuated during driving, trouble
should be diagnosed on a illumination pattern basis as
follows:
No.
ConditionªABSº Warning Light Illumination PatternDiagnostic
1Warning light is actu-
ated normallyNormal
2Warning light is not litWarning light lighting circuit
trouble"Go to Chart B-1
3Warning light remains
ONDiagnostic trouble codes are
stored.
Display diagnostic trouble
codes and diagnose on a
code basis according to the
flow charts.
4Warning light is actu-
ated while drivingDiagnostic trouble codes are
stored.
Display diagnostic trouble
codes and diagnose on a
code basis according to the
flow charts.
Diagnostic Trouble Codes (DTCs)
When the warning light in the meter remains ON, the
EHCU stores the fault identification and disables the
ABS.
1. How to display and erase DTCs:
NOTE:

If DTCs are not displayed, harness C-4 connector
terminal 30 and I-10 connector terminal 2 may be
disconnected. Repair the harness and try DTC
display again.
DTCs can be displayed also by TECH 2. Select mode
ªF0: Diagnostic Trouble Codesº from Application
Menu.
1. How to start DTC display:

Confirm that the vehicle has come to a complete
stop (with the wheels standing still) and that the
brake pedal is not depressed. (Unless these two
conditions are satisfied, DTC display cannot be
started.)

With IGN OFF, connect #12 terminal with #4
terminal or # 5 terminal (GND) . Then turn IGN ON.

6E±43 ENGINE DRIVEABILITY AND EMISSIONS
Tech 2
From 98 MY, Isuzu dealer service departments are
recommended to use Tech 2. Please refer to Tech 2 Tech
2 user guide.
901RW180
Legend
(1) PCMCIA Card
(2) RS 232 Loop Back Connector(3) SAE 16/19 Adaptor
(4) DLC Cable
(5) Tech±2
Tech 2 Features
1. Tech 2 is 12 volt system. Do not apply 24 volt.
2. After connect and/or install Tech 2 body, Vehicle
Communications Interface (VCI) module, PCMCIA
card and DLC connector, connect them to the vehicle
DLC.
3. After power off to the Tech 2, remove and reinstall the
PCMCIA card.
4. The PCMCIA card has a capacity of 10 Megabytes
which is 10 times greater than the memory of the Tech
1 Mass Storage Cartridge.5. The Tech 2 has the capability of two snapshots.
6. The PCMCIA card is sensitive to magnetism and
static electricity, so care should be taken in the
handling of the card.
7. The Tech 2 can plot a graph when replaying a
snapshot.
8. Always return to the Main Menu to press EXIT key
several times before shutting down.
9. To clear Diagnostic Trouble Codes (DTCs), open
Application Menu and press ªF1: Clear DTC Infoº.

6E±31 4JX1±TC ENGINE DRIVEABILITY AND EMISSIONS
060RW120
Menu

The following table shows, which functions are used
the available equipment versions.
F0: Diagnostic Trouble Codes
F0: Read DTC Info Ordered By Priority
F1: Read DTC Info As Stored By ECU
F2: Clear DTC Information
F3: Freeze Frame / Failure Records
F1: Data Display
F2: Snapshot
F3: Actuator Tests
F0: Checklight
F1: Glow Time Lamp
F2: EGR Switching Valve
F3: Exhaust Switching Valve 1
F4: Exhaust Switching Valve 2
F4: Miscellaneous Tests
F0: Throttle Motor Control
F1: Rail Pressure Control
F2: EGR Regulating Valve Control
F3: Rail Pressure Control Valve
F4: Injector Balance Test
F5: Programming
F0: Injector Calibration
(F1: Rail Pressure Calibration)

TRANSMISSION CONTROL SYSTEM (4L30±E)7A1±17
Menu

The following table shows, which functions are
used the available equipment versions.
F0: Diagnostic Trouble Codes
F0: Read DTC Info Ordered By Priority
F1: Clear DTC Information
F2: DTC Information
F0: History
F1: MIL SVS or Message Requested
F2: Last Test Failed
F3: Test Failed Since Code Cleared
F4: Not Ran Since Code Cleared
F5: Failed This Ignition
F1: Data Display
3. DVOM
When instructed to use a voltmeter or ohmmeter
within a troubleshooting procedure, use only a high
impedance DVOM (Digital Volt Ohmmeter) such as
J±39200 or equivalent.