Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 295

AUTOMATIC TRANSMISSION (AW30-40LE) 7A-29

Once the test vehicle has been identified an
“Application (Powertrain) Menu" screen appears.
Please select the appropriate application.
The following table shows, which functions are used
for the available equipment versions.

F0: Diagnostic Trouble Codes

F0: Read DTC Info By Priority

F1: Clear DTC Information

F2: DTC Information

F0:

History

F1: Last Test Failed

F1: Data Display
F0:

Transmission

Data

F1: TCC Data

F2: Snapshot
F0:

Transmission

Data

F1: TCC Data

F3: Miscellaneous Tests
F0:

Lamps

F0: Check Light Test

F1: Power Lamp Test (For UB) / F1: AT Oil
Temperature Lamp Test (For TF)

F2: Winter Lamp Test (For UB)

F1:

Solenoids

F0: Solenoid 1-2/3-4 Test

F1: Solenoid 2-3 Test

F2: TCC Solenoid Test

F3: Pressure Control Solenoid (PCS)

Diagnostic Trouble Codes
The purpose of the “Diagnostic Trouble Codes" mode
is to display stored TCM trouble codes.
When “Diagnostic Trouble Codes" is selected an
“Application Menu" screen appears.
Clear DTC Information
The purpose of the “Clear DTC Information" mode is to
command the clearing of stored TCM trouble codes.
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 controller will be erased".
Do you want to clear DTC's (Yes/No).
Press either the Yes or No key when answering.
After clearing codes, confirm system operation by test
driving the vehicle.
Allow the vehicle to shift through all four forward gears
in a manner which attempts to repeat the failure
condition.
NOTE: When the trouble has not been repaired and
the trouble code cannot be erased, check the vehicle
again.

DTC Information
When “DTC Information" is selected, an “Application
Menu" appears with a list of DTC information function
keys addressing DTC specifics and their origins.
Function key selections may vary for particular vehicle
and/or system.
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.
When “Data Display" is selected an “Application Menu"
appears.
See “TRANSMISSION DATA" and “TCC DATA” on
next page.
Snapshot
When “Snapshot" is selected an “Application Menu"
appears.
When “Transmission Snapshot" application is selected
from the “Application Menu", a “Snapshot Menu"
appears, displaying several options. “Snapshot"
options may vary from one system to another.
“Snapshot" allows a recording of all vehicle
parameters. There parameters may then be replayed
at a future point in time.
This action 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.
When a snapshot is taken. It is recorded onto the
PCMCIA memory card. When the Tech2 is powered
down. Snapshots are not lost.
Miscellaneous Tests
The purpose of “Miscellaneous Tests" mode is to
check for correct operation of electronic system
actuators.
Lamps
You can operate the lamps by pressing the ON and
OFF buttons.
Preconditions: P or N position
Solenoid
Solenoid S1(1-2/3-4), S2(2-3) and TCC Solenoid
(Torque Converter Clutch)
You can operate the solenoids by pressing the ON and
OFF buttons.
Preconditions: P or N position, no vehicle speed, no
engine speed
Pressure Control Solenoid (PCS)
You can operate the PC Solenoid by pressing the ON
and OFF buttons. ON will command a maximum
current of 1000 mA and OFF a minimum of 200 mA.
Preconditions: P or N position, no vehicle speed,
engine running

7A-30 AUTOMATIC TRANSMISSION (AW30-40LE)

TRANSMISSION DATA

Item

Unit

Engine running at idle

Current Gear

1

Lock Up

L - Up

Selector Position

Park

AT Output Speed (Automatic Transmission)

RPM

0 RPM

Output Speed (Meter Signal Side)

RPM

0 RPM

AT Input Speed (Automatic Transmission)

RPM

0 RPM

Engine Speed

RPM

695 ~ 745 RPM (UBS)

Vehicle Speed (Output Side)

km/h

0 km/h

Throttle Position

%

0%

Throttle Position Sensor (For UB)

V

0.25 ~ 0.45V

AT Oil Temperature (Automatic Transmission)

°C, °F

70 ~ 80°C (158 ~ 176°F)

Shift Pattern

None

Desired PCS Pressure (Pressure Control
Solenoid) kPa

PCS Desired Current (Pressure Control Solenoid)

A

PCS Actual Current (Pressure Control Solenoid)

A

Overdrive Off Switch

Off, On

Brake Switch

Open 0V, Closed 12V

Closed 12V

Winter Switch (For UB)

Open, Closed 0V

Open

Power Switch

Open, Closed 0V

Open

Diagnostic Request

Open, Closed

Open

Winter Lamp (For UB)

Inactive 12V, Active 0V

Inactive 12V

Power Lamp (For UB)

Inactive 12V, Active 0V

Inactive 12V

Check Light

Inactive 12V, Active 0V

Inactive 12V

AT Oil Temperature Lamp (Automatic
Transmission)

Inactive 12V, Active 0V

Inactive 12V

Solenoid 2-3

Inactive 0V, Active 12V

Inactive 0V

Solenoid 1-2/3-4

Inactive 0V, Active 12V

Active 12V

TCC Solenoid (Torque Converter Clutch)

Inactive 0V, Active 12V

Inactive 0V

Driving Mode

Economy

AUTOMATIC TRANSMISSION (AW30-40LE) 7A-31

TCC DATA

Item

Unit

Engine running at idle

Current Gear

1

Lock Up

L - Up

AT Output Speed (Automatic Transmission)

RPM

0 RPM

Output Speed (Meter Signal Side)

RPM

0 RPM

AT Input Speed (Automatic Transmission)

RPM

0 RPM

Engine Speed

RPM

695 ~ 745 RPM (UBS)

Vehicle Speed (Output Side)

km/h

0 km/h

Throttle Position

%

0%

Gear Ratio

:1

2.804

AT Oil Temperature (Automatic Transmission)

°C, °F

70 ~ 80°C (158 ~ 176°F)

TCC Slip Speed

RPM

695 ~ 745 RPM

TCC Solenoid Pressure Desired

kPa

0 kPa

Desired TCC Solenoid Current

A

0 A

Actual TCC Solenoid Current

A

0 A

7A-32 AUTOMATIC TRANSMISSION (AW30-40LE)

INTERMITTENT CONDITIONS

If the Tech2 displays a code as intermittent, or if after a test
drive a code does not reappear, the problem is most likely a
faulty electrical connection or loose wiring.
Terminals should always be the prime suspect.
Intermittent rarely occur in sophisticated electronic
components such as the Transmission Control Module (TCM).
When an intermittent problem is encountered, check suspect
circuits for:
・Poor terminal to wire connection.

・Terminals not fully seated in the connector body (backed

out).

・Improperly formed or damaged terminals.

・Loose, dirty, or corroded ground connections.

HINT: Any time you have an intermittent in more than one

circuit, check whether the circuits share a common
ground connection.

・Pinched or damaged wires.

・Electro-Magnetic Interference (EMI)

HINT: Check that all wires are properly routed away from

coil, and generator. Also check for improperly
installed electrical options, such as lights, 2-way
radios, etc.

Use the F2: SNAPSHOT mode of the Tech2 to help isolate
the cause of an intermittent fault. The snapshot mode will
record information before and after the problem occurs. Set
the snapshot to "trigger" on the suspect code (or codes) or, if
you notice the reported symptom during test drive, trigger the
snapshot manually.
After the snapshot has been triggered, command the Tech2 to
play back the flow of data recorded from each of the various
sensors. Signs of an intermittent fault in a sensor circuit are a
sudden unexplainable jump in data values out of the normal
range.