Isuzu Trooper (1998-2002 year). Service manual — part 706

AUTOMATIC TRANSMISSION (AW30-40LE)

7A–21

TRANSMISSION DATA

Item

Unit

Enigne running at idle

Current Gear

1

Lock Up

Inactive, Active

Inactive

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

Vehicle Speed (Output Side)

km/h

0 km/h

Throttle Position

%

0 %

Throttle Position Sensor

V

0.25

~

0.45V

AT Oil Temperature (Automatic Transmission)

°

C,

°

F

70

~

80

°

C (158

~

176

°

F)

Shift Pattern

Desired PCS Pressure (Pressure Control Solenoid)

kPa

PCS Desired Current (Pressure Control Solenoid)

mA

PCS Actual Current (Pressure Control Solenoid)

mA

Overdrive Off Switch

Off, On

Brake Switch

Open 0V, Closed 12V

Closed 12V

Winter Switch

Open, Closed 0V

Open

Power Switch

Open, Closed 0V

Open

Diagnostic Request

Open, Closed

Open

Winter Lamp

Inactive 12V, Active 0V

Inactive 12V

Power Lamp

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

7A–22

AUTOMATIC TRANSMISSION (AW30-40LE)

TCC DATA

Item

Unit

Enigne running at idle

Current Gear

1

Lock Up

Inactive, Active

Inactive

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

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

mA

0 mA

Actual TCC Solenoid Current

mA

0 mA

AUTOMATIC TRANSMISSION (AW30-40LE)

7A–23

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 spark plug wires, distributor wires, 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.

7A–24

AUTOMATIC TRANSMISSION (AW30-40LE)

826RY00004

IDENTIFICATION OF TRANSMISSION
CONTROL MODULE (TCM)

ISUZU Part No: 8-97230-821-0