Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual - part 113

6E–56

4JH1 ENGINE DRIVEABILITY AND EMISSIONS

4JH1 ENGINE DRIVEABILITY AND EMISSIONS

6E–57

DIAGNOSIS WITH Tech 2

If no codes are set:

• Refer to F1: Data Display and identify the electrical

faults that are not indicated by trouble code.

• Refer to “SYMPTOM DIAGNOSIS”.

If codes are set:

1. Record all trouble codes displayed by Tech 2 and

check id the codes are intermittent.

2. Clear the codes.

3. Drive the vehicle for a test to reproduce the faulty

status.

4. Check trouble codes again using the Tech 2.

5. If no codes is displayed by test driving, the fault is

intermittent. In this case, refer to “DIAGNOSIS
AIDS”.

6. If a code is present, refer to DTC Chart for

diagnosis.

7. Check trouble codes again using the Tech 2.

Tech 2 CONNECTION

Tech 2 scan tool is used to electrically diagnose the
automatic transmission system and to check the
system. The Tech 2 enhances the diagnosis efficiency
though all the troubleshooting can be done without the
Tech 2.

1. Configuration of Tech 2

• Tech 2 scan tool kit (No. 7000086), Tech 2 scan

tool (No. 7000057) and DLC cable (No. 3000095).

• SAE 16/19 adapter (No. 3000098) (3), RS232

loop back connector (No. 3000112) (2) and
PCMCIA card (No. 3000117) (1).

2. Tech 2 Connection

• Check the key switch is turn OFF.

• Insert the PCMCIA card (1) into the Tech 2 (5).

• Connect the SAE 16/19 adapter (3) to the DLC

cable (4).

• Connect the DLC cable (4) to the Tech 2 (5).

• Connect the SAE 16/19 adapter (3) to the data

link connector of the vehicle.

• Turn the key switch of the vehicle ON and press

the “PWR” key of the Tech 2.

• Check the display of the Tech 2.

NOTE:  Be sure to check that the power is not supplied
to the Tech 2 when attaching or removing the PCMCIA
card.

6E–58

4JH1 ENGINE DRIVEABILITY AND EMISSIONS

TECH 2 OPERATING FLOW CART (START UP)

Select “4JH1-TC Bosch” in Vehicle Identification menu and the following table is shown in the Tech 2 screen.

Main Menu

F0: Diagnostic

F1: Service Programming System (SPS)

F2: View Capture Data

F3: Tool Option

F4: Download/ Upload Help

Press “ENTER” key.

Vehicle Identification

(3) 2003

(2) 2002

(1) 2001

(Y) 2000

(X) 1999

(W) 1998

Select “F0: Diagnostic”.

Select “(3) 2003”or later.

Press (ENTER) to Continue

System Selection Menu

F0: Powertrain

F1: Chassis

F3: Body

Select “(TF/UC)”.

Vehicle Identification

4JH1-TC Bosch

4JA1-TC Bosch

4JH1-T Denso

3.5L V6 6VE1 Hitachi

AW30-40LE

A/T JR405E

Select “F0: Powertrain”.

Select “4JH1-TC Bosch”.

Vehicle Identification

(UB) Trooper, Bighorn

(UE) Rodeo,/Amigo, Wizard/Mu

(TF/UC) LUV, Frontier, LAO-Rodeo

(TBR)

(N*) ELF, NPR, NQR

4JH1 ENGINE DRIVEABILITY AND EMISSIONS

6E–59

F0: Diagnostic Trouble Code
The purpose of the “Diagnostic Trouble Codes” mode is
to display stored trouble code in the ECM.
When  “Clear DTC Information” is selected, a “Clear
DTC Information”, warning screen appears. 
This screen informs you that by cleaning DTC's “all
stored DTC information in the ECM will be erased”.
After clearing codes, confirm system operation by test
driving the vehicle.

Symptom Code:
This number or alphabet means identification of the
malfunction. Each DTC includes plural symptoms, such
as DTC P0100 has four kinds of symptom code (7), (9),
(B) and (C). DTC chart (check procedure) is separated
depending on the symptom code.

F1: Data Display
The purpose of the “Data Display” mode is to
continuously monitor data parameters.
The current actual values of all important sensors and
signals in the system are display through F1 mode.
See the “Typical Scan Data” section.

F2: Snapshot
“Snapshot” allows you to focus on making the condition
occur, rather than trying to view all of the data in
anticipation of the fault. 
The snapshot will collect parameter information around
a trigger point that you select.

F3: Miscellaneous Test:
The purpose of “Miscellaneous Test” mode is to check
for correct operation of electronic system actuators.

F4: Programming (Factory Use Only)
The purpose of “Programming” is to program VIN in the
ECM and lock the programmed data.

F0: Diagnostic Trouble Codes

F0: Read DTC Infor As Stored By ECU

F1: Clear DTC Information

F1: Data Display

F2: Snapshot

F3: Miscellaneous Test

F0: Lamps

F0: Check Light

F1: Glow Time Telltale Test

F1: Relays

F0: Glow Time Relay Test

F2: Engine Speed (RPM) Control

F4: Programming

F0: Program VIN

F1: Lock ECU

                                  Read DTC Infor As Stored By ECU

   
                                          P0100    Present

                                          (7)        Mass Air Flow (MAF) Sensor

                                                          Voltage Supply Circuit High Input

DTC No.

Symptom Code