Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 369

7A-24 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.

AUTOMATIC TRANSMISSION (AW30-40LE) 7A-25

DATA LIST

Item

Status and reference value

BRAKE SWITCH

ON/CLOSED
OFF/OPEN

12V
0V

COOLANT TEMP. SW

ON/CLOSED
OFF/OPEN

0V
12V

SOLENOID S1

ACTIVE
INACTIVE

12V
0V

SOLENOID S2

ACTIVE
INACTIVE

12V
0V

TCC SOLENOID
(SOLENOID S3)

ACTIVE
INACTIVE

12V
0V

SPEED SENSOR 1

0 – 254 KPH (km/h)
0 – 11430 p/min

SPEED SENSOR 2

0 – 254 KPH (km/h)
0 – 48006 p/min

TIME FROM START

0:00 – 4:15 (hr:min:sec)

TRANSM. OIL TEMP.

–40℃ – +199℃
4.96V – 0.00V

OIL LAMP

ON
OFF

0V
12V

OIL TEMPERATURE

LOW
HIGH

PROGRAM SWITCH

ACTIVE
INACTIVE

0V
12V

(POWER mode)
(NORMAL mode)

OVERDRIVE SWITCH

ON
OFF

0V
12V

SELECTOR POS.

- P/R/D - or - 1 - or - 2 - or - N - FAULT -

SELECTOR POS.2

ACTIVE
INACTIVE

12V
0V

SELECTOR POS.L

ACTIVE
INACTIVE

12V
0V

TPS SIGNAL

0.00 - 9.99V
0 - 99%, 00 – 07

ACTUAL GEAR

- 1 -, - 2 -, - 2L/U -, - 3 -, - 3L/U -, - 4 -, -4L/U -

SELECTOR POS.N

ACTIVE
INACTIVE

12V
0V

WINTER SWITCH

ACTIVE
INACTIVE

0V
12V

7A-26 AUTOMATIC TRANSMISSION (AW30-40LE)

IDENTIFICATION OF TRANSMISSION CONTROL MODULE (TCM)

826R200028

ISUZU Parts No:
UBS ― 8-97302-387-0
TFS ― 8-97257-060-0
TFR ― 8-97257-061-0

AUTOMATIC TRANSMISSION (AW30-40LE) 7A-27

DIAGNOSTIC TROUBLE CODES (DTC) CHECK

CODE 11 VEHICLE SPEED SENSOR 2 (OPEN/SHORTED CIRCUIT)

UBS

D07R200023

TF

D07R200015