Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual - part 639

7A1–56 AUTOMATIC TRANSMISSION (4L30-E)

8

7

6

5

4

3

2

1

16

15

14

13

12

11

10

9

826RV061

Press (ENTER) To Continue

060RW009

5.

Connect the TECH2 SAE 16/19 adaptor to the vehicle
DLC.

6.

The vehicle ignition turns on.

7.

Verify the TECH2 power up display.

NOTE:

The RS232 Loop back connector is only to use for
diagnosis of TECH2 and refer to user guide of the TECH2.

AUTOMATIC TRANSMISSION (4L30-E) 7A1–57

CLEAR DTC

Remark: If you clear the DTC (Diagnosis Trouble
Codes) you will not be able to read any codes
recorded during the last Trouble.

Remark: To be able to use the DTC again to identify a
problem you will need to reproduce the fault or the
problem. This may require a new test drive or just
turning the ignition on (this depends on the nature of
the fault).

1.

IF you have a TECH2:
(1) Connect the TECH2 if it is still not connected

GOTHROUGH TECH2 CONNECTION. 

(2) Push “F4” and answer “Yes” to the question “Do

you really want to clear the codes?”

1

When a malfunction remains as it is the
TECH2 displays “4L30E CODES NOT
CLEARED”. This means that the problem is
still there or that the recovery was not done
please GOTO DTC CHECK.

2

When a malfunction has been repaired and
the recovery is done the TECH2 displays
“4L30E CODES CLEARED”.

2.

IF you have no TECH2:
(1) Short the Data Link Connector C-102 terminal 11

to terminal 4 or 5 (ground).

1

IF it is flashing and the flash is 0.4 seconds ON
and 0.4 second OFF without interruption, this
means that there is no DTC. The DTCs are
already cleared.

(2)

IF a code is flashed, wait until the lamp is
flashing.

(3)

Push POWER SWITCH (do this within 3 second).
1

If you continue to have malfunctions: This
means that the problem is still there or that
the recovery was not done please see DTC
CHECK.

(4)

IF you can not clear the DTC:
1

GOTHROUGH TCM PRECAUTIONS.

2

Disconnect the TCM.

3

Reconnect the TCM.

4

IF the DTC is not cleared: GOTO TCM MEM-
CAL REPLACEMENT.

8

7

6

5

4

3

2

1

16

15

14

13

12

11

10

9

826RV061

7A1–58 AUTOMATIC TRANSMISSION (4L30-E)

DTC CHECK

1

Diagnosis Trouble Codes (DTC) have been identified
by TECH2 or FLASHING CODES.

2.

You have written the list of the DTC. The order of the
malfunctions has no meanings for this TCM. Usually
only one or two malfunctions should be set for a
given problem.

3.

Check directly the DTCs you identified. The DTC are
sorted by number. See Chart 2:

DIAGNOSTIC TROUBLE CODES (Page 7A1-63).

AUTOMATIC TRANSMISSION (4L30-E) 7A1–59

F0: DATA LIST QUICK CHECK

TECH2 DISPLAY

CONDITONS

CORRECT VALUE

FOR
DIAGNOSIS
SEE

*1

BATTERY VOLTAGE

Ignition ON

9 V 

≤

voltage 

≤

15.5 V

DTC 25

(V)

or 26

FORCE MOTOR CUR.

Engine at idle speed

approx. 0.9 A

DTC 35

CALCULAT. PRESS.

Parking brake on

approx. 4.0 bar

Selector lever position ”D“

SOLENOID A

Vehicle traveling at a speed of: approx.

ACTIVE 

DTC 31

50 km/h (32 mph) with selector lever in

or 41

position ”2“ or approx. 70 km/h (44 mph)
with selector lever in position ”3“

SOLENOID B

Vehicle traveling at a speed of: approx.

ACTIVE 

DTC 32

10 km/h (6 mph) with selector lever in

or 42

position ”L“ or approx. 30 km/h (18 mph)
with selector lever in position ”2“

BAND APPLY SOL.

Engine at idle speed

approx. 99% DC

DTC 34

Selector lever position ”L“

or 44

TCC SOLENOID

Vehicle traveling at a speed of approx.

ON

DTC 33

80 km/h (50 mph)

or 43

Selector lever position ”D“

TCC SLIP RPM

Constant engine speed

0±10 RPM

DTC 33

Selector lever position “D”

or 43

TCC on

BRAKE SWITCH

Ignition ON

ACTIVE 

DTC 55

Brake pedal pressed

or 56

AT INPUT SPEED

Engine speed 

≤

200 rpm

Engine speed: (RPM)

DTC 13

Output speed > 1024 rpm

or 62

Selector lever position ”D“, ”3“, ”2“, ”L“

AT OUTPUT SPEED

Output speed 

≤

0 rpm

Output speed: 

DTC 11

Engine speed > 3000 rpm

(RPM)

or 13

Selector lever position ”D“, ”3“, ”2“, ”L“

BAROMETER 

Engine at idle speed

0.9 ~ 1.0 bar

–

SENSOR

approx. 0.02 V

SELECTOR POS.

Ignition ON

Dependent on 

DTC 53

Shift through all selector lever positions

selector lever position 

or 54

P, R, N, D, 3, 2, L

ACTUAL GEAR

Vehicle traveling at a speed of approx.

- 4 -

DTC 61

100 km/h (62 mph)
Selector lever position ”D“

NOTE: (

*1

) FOR DIAGNOSIS OF A DTC SEE CHART 2: DIAGNOSTIC TROUBLE CODES (DTC)

(PAGE 63)