key ISUZU TROOPER 1995 Manual PDF

7 A-48 AUTOMATIC TRANSMISSION (4L30-E)
"CHECK TRANS" CHECK
1. CASE it is ON during 2 to 3 seconds at ignition
(or when the engine is cranked) but it is OFF
after (Fig. 7A-8a). The indicator is working
normally GOTO DIAGNOSTIC CHECK.
2. CASE it is flashing and the flash is 0.2 seconds
ON and 0.2 seconds OFF always when ignition
is on (engine cranked or not). This means that
there is a malfunction. GOTO DIAGNOSTIC
CHECK.
Normal
Abnormal
~-IGN Key ON
ON
II
OFF __j l___
~
3 Sec. (SOHC) 2 Sec. (OOHC) (Lamp check)
1-
IGN Key ON
il 0.2Sec.
oN 11 n n n ~~--s_ ~~)-_. OFF __j u u u l:
I. .I. .1.11. 0.2
Sec.
3.2 Sec. 3 Sec. (SOHC) 2 Sec. (OOHC) (Lamp check)
Fig. 7A-8b
4. CASE it is staying ON always when Ignition is
ON.
(1) This means that connection between the
Lamp and the TCM is shorted to ground
(Fig. 7 A-8c).
(2) Verify if instrument panel terminal 7 of
connector 1-1 is shorted to ground.
(3) Verify if the TCM connector C-91 terminal
C10 is shorted to ground.
(4) Verify that the instrument panel terminal 6
of connector 1-1 is connected to Battery.
(5) IF problem solved: GOTO CHECK TRANS
INDICATOR.
NO: GOTO TCM MEM-CAL REPLACE­
MENT.
Fig. 7A-8a 5. CASE it is staying OFF with the ignition ON
(engine OFF). 3. CASE the CHECK TRANS indicator is flashing
always and the flash is 0.4 seconds ON and 0.4
second OFF.
(1) This means that the Transmission Control
Module (TCM) is in flashing code mode.
This mode is only used for service. This
mode is set when the Terminal 1 of
diagnostic connector C-92 is set to
ground. To go out of this mode see Fig.
7A-8b.
(2) Check
if terminal 1 of diagnostic con­
nector C-92 is shorted to ground. (Voltage
is
about 0 volts when there is a short to
ground instead of 5 volts).
(3) Check if TCM terminal 016 has the same
problem.
(4) Remove the short circuit to ground due to
wiring problems.
(5) IF problem solved: GOTO CHECK TRANS
INDICATOR.
NO: GOTO TCM MEM-CAL REPLACE­
MENT.
(1) This means that connection between the
Lamp and the TCM is shorted to battery or
opened (Fig. 7 A-8c).
(2) Verify if instrument panel terminal 7 of
connector 1-1 is shorted to battery or
open.
(3)
Verify if the TCM connector C-91 terminal
C1 0 is shorted to battery or open.
(4)
Verify that the instrument panel terminal 6
of connector 1-1 is connected to Battery. If
not check the Fuses and the connections
(terminal 10 of connector H-25) voltage.
(5) IF problem solved: GOTO CHECK TRANS
INDICATOR.
NO: GOTO TCM MEM-CAL REPLACE­
MENT.

7 A-50 AUTOMATIC TRANSMISSION (4L30-E)
FLASHING CODES
1. ON BOARD DIAGNOSIS (SELF-DIAGNOSIS)
(1) The Transmission Control Module (TCM)
conducts a
self-test of most of the wiring
and components in the system each time
the key is turned ON. If a fault is detected
the TCM
will store a Diagnostic Trouble
Code (DTC) in memory. It's a number that
corresponds to a specific problem.
(2) When the problem detected is important:
the
CHECK TRANS indicator is flashing
(turned ON 0.2 seconds and OFF 0.2
seconds) until the fault is repaired and the
TCM
memory is cleared (Fig. 7A-8d).
ON
~--IGN Key ON
_ll___ OFF Normal w
3 Sec. (SOHC) 2 Sec. (DOHC) (Lamp check)
~-IGNKeyON
ON
"it 0.2Sec.
~~--5-~~)--· OFF
Abnormal \. Ill 0.2 Sec. • 1 ••.. 3.2 Sec. 3 Sec. (SOHC) 2 Sec. (DOHC) (Lamp check)
Fig. 7A-8d

7A-54 AUTOMATIC TRANSMISSION (4L30-E)
FO:DATA LIST
The purpose of the FO: DATA LIST mode is to
continuously monitor data parameters.
The current actual values
of all important sensors
and signals in the system are displayed
through
Mode FO. The displayed actual values must then be
compared
with the specifications listed in the
SELECT MODE
FO: DATA LIST Fl:NOT USED F2:TROUBLE CODE
(FO) r
Checking instructions. From these the trouble can
be clearly diagnosed.
In the Quick Check list, all the
test steps are summarized, so
that (for example),
after a mechanical/hydraulic problem, the electronic
functions can also be quickly checked.
BATTERY VOLTAGE NOTE: ACTIVE TECH 1 KEYS
10.9V BAROMETER SENSOR 0.45bar 1. 88V
(YES,NO)
' r FORCE MOTOR CUR.
-0.90A CALCULAT. PRESS. 3.6bar
_....J
---'
(EXIT)
SELECT MODE FO:DATA LIST Fl:NOT USED F2:TROUBLE CODE
YES & NO Scroll through displayed data parameters.
FO Mark the top display parameter as 'fixed' for
F1
F7
EXIT
creating your own pairs.
Mark the bottom display parameter as 'fixed'
for creating your own pairs.
Change the display between MPH and
KPH.
Return to SELECT MODE menu.

AUTOMATIC TRANSMISSION (4l30·E) 7 A-57
(A) FO: ANY TC (CAPTURE DATA ON ANY TC)
SNAPSHOT OPTIONS FO: ANY CODE
F1: SINGLE CODE F2: MANUAL TRIG
(FO) + BATTERY VOLTAGE 10.9V
BAROMETER SENSOR Flash in g W indicates waiting for trouble codes.
0.45bar l.BBV w ~
'
SOLENOID 1-2/3-4
INACTIVE SOLENOID 2-3 ACTIVE 41 ~lndi cator is entered trouble code.
+
(NO) SNAPSHOT MODE TECH 1 SEARCH FOR TC? (YES/NO)
(YES)
'
TC 41: PRESENT SOLENOID 1-2/3-4 SHORT TO PLUS (YES) -73
(YES) y
SOLENOID 1-2/3-4 INACTIVE
If some codes SOLENOID 2-3 ACT! VE -73 are set I
SNAPSHOT MODE
TECH 1 SEARCH FOR TC COMPLETE (YES)
(YES)
• TC 41: PRESENT SOLENOID 1-2/3-4
SHORT TO PLUS (YES) -73
(YES)
.[ SOLENOID 1-2/3-4 Indicates sample
relative
r. r INACTIVE number
~0
2-3 to trigge
E -73 ~
_J (EXIT) lr
SNAPSHOT OPTIONS FO: ANY CODE F1: SINGLE CODE F2: MANUAL TRIG
NOTE: ACTIVE TECH 1 KEYS
YES
& NO Scroll through displayed data parameters.
FO & F1 Fix the top or bottom display parameter
F2
i j,
F3
F4
FS
F6
EXIT respectively.
Display trouble
codes for current sample.
Go to the next data sample.
Go to the previous data sample.
Turn on/off sample time display.
Go to the earliest sample in memory.
Go to the trigger sample (sample 0).
Go to the latest sample in memory.
Return to Snapshot Options menu.

1 A-58 AUTOMATIC TRANSMISSION (4l30-E)
(B) F1: SINGLE CODE (CAPTURE DATA ON TC STORED)
SNAPSHOT OPTIONS FO: ANY CODE
F1: SINGLE CODE F2: MANUAL TRIG
(F1) y
SNAPSHOT MODE ENTER TROUBLE
CODE (CODE + ENTER) -
(CODE+ENTER) If you
enter a
wrong code
..
SOLENOID 1-2/3-4 INACTIVE
SOLENOID 2-3
I
INVALID CODE!
ACTIVE 41 ~ Indicator is entered trouble code.
(NO) '
SNAPSHOT MODE
TECH 1 SEARCH FOR TC? CYES/NOl
(YES) f
TC 41:PRESENT
,...-------~ SOLENOID 1-2/3-4 SHORT TO PLUS (YES) -73
(YES) f
If some codes
SOLENOID 1-2/3-4 INACTIVE
are set SOLENOID 2-3 ACTIVE -73
I
SNAPSHOT MODE TECH 1 SEARCH FOR TC COMPLETE (YES)
(YES) •
.-TC41:PRESENT SOLENOID 1-2/3-4 SHORT TO PLUS (YES) -73 _j
(YES)
1-2/3-4 r SOLENOID
rL INACTIVE
'------,~, SOLEN~ 1-,D ;------l-2 _: ;...;;.3---'
(EXIT)
SNAPSHOT OPTIONS
FO: ANY CODE F1: SINGLE CODE F2: MANUAL TRIG
Indicates sample
number relative
to trigger.
~
NOTE: ACTIVE TECH 1 KEYS
YES & NO Scroll through displayed data parameters.
FO & F1 Fix the top or bottom display parameter
F2
i j_
F3
F4
F5
F6
EXIT respectively.
Display trouble
codes for current sample.
Go to the next data sample.
Go to the previous data sample.
Turn on/off sample time display.
Go to the earliest sample in memory.
Go to the trigger
sample (sample 0).
Go to the latest sample in memory.
Return to Snapshot Options menu.

AUTOMATIC TRANSMISSION (4l30-E) 7A-59
(C) F2: MANUAL TRIG (CAPTURE DATA ON F9 KEY PRESS)
This option is always available, whether or not trouble codes are present.
SNAPSHOT OPTIONS FO: ANY CODE Fl: SINGLE CODE F2: MANUAL TRIG
(F2)
BATTERY VOLTAGE
10.9V BAROMETER SENSOR 0.45bar 1.88V F9
"F9" is flashing indicator.
'
BATTERY VOLTAGE 10.9V BAROMETER SENSOR 0.45bar 1.88V F9
j_
SNAPSHOT MODE TECH 1 SEARCH (NO) FOR TC?
CYES/NOl
(YES)
TROUBLE CODES
NO TROUBLE
CODES
TC 41:PRESENT
.----------~· SOLENOID 1-2/3-4 SHORT TO PLUS
CYESl -73
(YES) y
SOLENOID 1-2/3-4
INACTIVE
If some codes
are set SOLENOID 2-3 ACTIVE -73
NO TROUBLE
CODES SNAPSHOT MODE
TECH 1 SEARCH FOR TC COMPLETE CYESl
NO TROUBLE CODES ..
(YES) j NOTE: ACTIVE TECH 1 KEYS r-TC 41: PRESENT SOLENOID 1-2/3-4
SHORT TO PLUS CYESl -73 I Indicates
(YES)
sample
r--~~:--":'"~~ number
r[ i~~g~0~ 1 -2
/3
-4 relative
to
'---...L----=--
1
~ soLEN~ I-D r-------l-2 _-~...;.7.;;..3 1
__, ~gger.
(EXIT)
SNAPSHOT OPTIONS FO: ANY CODE Fl: SINGLE CODE F2: MANUAL TRIG
YES & NO Scroll through displayed data parameters.
FO & F1 Fix the top or bottom display parameter
F2
I
J,
F3
F4
F5
F6
EXIT
respectively.
Display trouble codes for current sample.
Go to the next data sample.
Go to the previous data sample.
Turn
on/off sample time display.
Go to the earliest sample in memory.
Go to the trigger sample (sample 0).
Go to the latest sample in memory.
Return to Snapshot Options menu.

7 A-60 AUTOMATIC TRANSMISSION (4L30-E)
(D) F4: REPLAY DATA (SEARCH FOR TROUBLE CODE REPLAY DATA)
SNAPSHOT OPTIONS F3: NOT USED
F4: REPLAY DATA F5: UPDATE RATE
(F4)
,
(NO) SNAPSHOT MODE
TECH 1 SEARCH FOR TC? (YES/NOl
(YES)
• TC 41:PRESENT SOLENOID 1-2/3-4
SHORT TO PLUS (YES) -73
(YES) y
SOLENOID 1-2/3-4
If some codes INACTIVE
are set SOLENOID 2-3 ACTIVE -73
J
SNAPSHOT MODE TECH 1 SEARCH FOR TC COMPLETE
CYESl
(YES)
,.... TC 41:PRESENT
SOLENOID 1-2/3-4 SHORT TO PLUS (YES) -73
I
(YES) 1 Indicate 1-2/3-4 number ·[ SOLENOID r INACTIVE
~D
2-3
s sample
relative
r. to trigge
E -73 f-
___J
(EXIT)
r
SNAPSHOT OPTIONS FO: ANY CODE F1: SINGLE CODE F2: MANUAL TRIG
NOTE: ACTIVE TECH 1 KEYS
YES
& NO Scroll through displayed data parameters.
FO & F1 Fix the top or bottom display parameter
F2
i
J
F3
F4
FS
F6
EXIT
respectively.
Display trouble codes for current sample.
Go to the next data sample.
Go to the previous data sample.
Turn on/off sample time display.
Go to the earliest sample
in memory.
Go to the trigger sample (sample
0).
Go to the latest sample in memory.
Return to Snapshot
Options menu.
..

AUTOMATIC TRANSMISSION (4L30-E) 7 A-61
(E) F5: UPDATE RATE
The purpose of the
F5: UPDATE RATE option is to change the sampling period of snapshot.
SNAPSHOT OPTIONS F3: NOT USED F4: REPLAY DATA F5: UPDATE RATE
(F5)
l
SNAP UP DATE RATE FO: FAST (EACH)
Fl: SLOW (1/SECJ (Select FO or F1 key)
(f) F6: TRIG POINT
The purpose of the F6: TRIG POINT option is to fix the trigger point of snapshot.
SNAPSHOT OPTIONS F6: TRIG POINT F7: CAUSE OF TRIG
(F6)
l
TRIGGER POINT AT
FO: BEGINNING Fl: CENTER (Select FO -F2 key)
F2: END OF DATA
(G) F7: CAUSE OF TRIG
The purpose of the F7: CAUSE OF TRIG option is to fix the trigger point by pressing "F9" key.
SNAPSHOT OPTIONS F6: TRIG POINT F7: CAUSE OF TRIG
(F7)
T
TRIGGER CAUSED BY *F9* KEY PRESS (EXIT)

AUTOMATIC TRANSMISSION (4L30-E) 7 A-63
F5: ACTUATOR TEST
The purpose
of F5: ACTUATOR TEST mode is to check for correct operation of electronic system actuators.
By means of the TECH 1 you can command the actuators ON and OFF. Then you can check the actuators for
correct operation.
Select the actuator by pushing the "i" or".!." key. (The* mark moves.)
For some actuator tests the TECH 1
can automatically determine the correct function of the actuators.
W CAUTION
Always put the parking brake on and block the wheels when using this test mode.
The engine
should be OFF and the ignition is ON. Refer to page 7A-73.
TEST ABORTED! ENGINE MUST NOT BE RUNNING
If engine running
SELECT MODE FO: DATA LIST
F1:NOT USED F2:TROUBLE CODE
(T,.J..)
SELECT MODE
F3:SNAPSHOT F4:CLEAR CODES
F5:ACTUATOR TEST
(F5)
SELECT ACTUATOR *SOLEN. 1-2/3-4 SOLENOID 2-3
SHIFT SOLENOID TCC SOLENOID TCC HIGH CD)
ATF LAMP POWER LAMP WINTER LAMP
CHK. TRN. LAMP ABS OFF LAMP
(i,.!.+ENTER)
SOLENOID 1-2/3-4
*1 i: ON .j,: OFF
CYESJ
(YES)
SOLENOID 1-2/3-4 * INACTIVE SOLENOID 2-3 INACTIVE ON/OFF
* 1 (i,.!.)
*:Flashing
*1: The
"i" key is ON and the".!." key is OFF.
(EXIT)
SELECT ACTUATOR *SOLEN. 1-2/3-4 SOLENOID 2-3 SHIFT SOLENOID

7 A-64 AUTOMATIC TRANSMISSION (4L30-E)
FS: ECU CONTROL
The purpose of the FB: ECU CONTROL mode is to change the current of force motor solenoid.
SELECT MODE F6:NOT USED F7:NOT USED F8:ECU CONTROL
(F8)
FORCE MOTOR CTL.
i: INCREASE .J..: DECREASE (YES)
(YES)
FORCE MOTOR CUR.
* O.OOA CALCULAT. PRESS.
3.7 bar
(i,.J..)
(EXIT) lr
SELECT MODE
FO: DATA LIST Fl: NOT USED F2: TROUBLE CODE
(i,.J..)
SELECT MODE F3: SNAPSHOT F4: CLEAR CODES F5: ACTUATOR TEST
(i,.J..)
SELECT MODE F6: NOT USED
F7: NOT USED F8: ECU CONTROL
You can change the current of force
motor solenoid by i or .J.. key.