Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 368

7A-20 AUTOMATIC TRANSMISSION (AW30-40LE)

DIAGNOSIS WITH TECH 2

In this AW30-40LE transmission, troubleshooting can be
performed for electrical faults using the Tech 2 scan tool.
If the CHECK TRANS lamp blinks, or if an electrical fault in the
transmission may probably exist, check trouble codes using
the Tech 2 scan tool.
In the diagnostic procedures described in this manual, first
repair the faulty positions indicated by trouble code in the order
of numbers and then perform troubleshooting for the faulty
positions that are not indicated by trouble code. For correct
troubleshooting, it is necessary to first repair the trouble codes
of lower-order numbers, then to repair the trouble codes of
higher-order numbers in sequence.

How to Use This Manual:
Check trouble codes using the Tech 2 scan tool.

If no codes are set:

・ Refer to Data List and identify the electrical faults that are

not indicated by trouble code.

If codes are set:

・ Record all the codes displayed by the Tech 2 and check if

the codes are intermittent (intermittent faults).

・ Clear the codes.

・ Drive the vehicle for a test to reproduce the faulty status.

・ Check trouble codes again using the Tech 2.

・ If no code is displayed by test driving, the fault is

intermittent. In this case, refer to the cautions on
intermittent conditions.

・ If a code is present, refer to “DIAGNOSTIC TROUBLE

CODES (DTC) CHECK” for diagnosis.

・ Because a code of high-order number may be set for the

reason that a code of low-order number has been set after
occurrence of a fault, perform repair work starting with a
lower-order number is ascending order.

AUTOMATIC TRANSMISSION (AW30-40LE) 7A-21

901RW176

F07RW033

TECH2 CONNECTION

The Tech2 scan tool is used to electrically diagnose the
automatic transmission system and to check the system. The
Tech2 enhances the diagnosis efficiency though all the
troubleshooting can be done without the Tech2.
The Tech2 is a portable, compact, and light tester. When it is
connected to the diagnosis connector of the vehicle, you can
perform a variety of diagnoses and tests by communicating
with the Transmission Control Module (TCM) of the vehicle.
1. Configuration of Tech2

1. Tech2 scan tool kit (No. 7000086), Tech2 scan tool (No.

7000057) and DLC cable (No. 3000095)

2. SAE16/19 adapter (No. 3000098) (1), RS232 loop back

connector (No. 3000112) (2), and PCMCIA card (No.
3000117) (3)

UBS (RHD)

740RY00013

UBS (LHD)

740RY00014

2. Tech2 Connection

・ Observe the Tech 2 User Guide.

1. Check the ignition is OFF.
2. Insert the ISUZU (model year) system PCMCIA card (1)

into the Tech2 (4).

3. Connect the SAE16/19 adapter (2) to the DLC cable (3).
4. Connect the DLC cable (3) to the Tech2 (4).
5. Connect the SAE16/19 adapter (2) to the diagnosis

connector of the vehicle.

6. Turn the ignition of the vehicle ON and press the "PWR"

key of the Tech2.

・ Check the display of the Tech 2.
NOTE:
Be sure to check that the power is not supplied to the
Tech2 when attaching or removing the PCMCIA card.

7A-22 AUTOMATIC TRANSMISSION (AW30-40LE)

TF

740R200046

901RY00014

AUTOMATIC TRANSMISSION (AW30-40LE) 7A-23

TECH2 OPERATING FLOW CHART (START UP)

060R200181