2007 ISUZU KB P190 sensor

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Page 4917 of 6020

ISUZU KB P190 2007 Workshop Repair Manual TRANSFER CONTROL SYSTEM 7D1-43

No. Connector face No. Connector face
E12

Natural green
Neutral switch E78

~
E80 NOT USED
E35

Black
Motor actuator E96

BlackRevers

Page 4935 of 6020

ISUZU KB P190 2007 Workshop Repair Manual TRANSFER CONTROL SYSTEM 7D1-61
From 4H to 4L; Even after the correction step 3-3(*), 4Lo indicator blinks at 4Hz
Step Action Yes No
1 Is the ignition switch ON? Turn it OFF once.
Go to step 2.

TRANSFER CONTROL SYSTEM 7D1-61
From 4H to 4L; Even after the correction step 3-3(*), 4Lo indicator blinks at 4Hz
Step Action Yes No
1 Is the ignition switch ON? Turn it OFF once.
Go to step 2.
2 Turn ON the ignition switch and
check the valve. Do not start
the engine.
Has the valve check for 2
seconds been completed
normally? Go to step 3.
Refer to the paragraph about the
indicator when it does not react
when shifted from 2H to 4H.
After taking the remedy, trace this
chart from the beginning.
3 Shift to 2H.
Can be shifted to 2H and then to
4H? Go to step 4.
Refer to the paragraph about
shifting from 2H to 4H.
In particular, check if not at the
Check4W D condition, return to
this chart and trace it from the
beginning.
4 Set to N position in case of AT
and set to the neutral position in
case of MT and check if the
lamp blinks at 4Hz after
operation.
Failed T/M position switch and
harness (failure of TM1 and TM2
harness and their related
switches shown in the figure).
Incorrect wiring.
Repair as required and trace this
chart from the beginning. Shift back to 4H and go to step 5.
5
Start the engine and use the
vehicle.
Does the speedometer run at
this time? Go to step 6.
Failure of speed sensor or
disconnection or short of harness
(for the meter).
After repairing, trace this chart
from the beginning.
6 Check the harness between the
transfer controller and speed
sensor.
(Check the engine rotation
detection harness at the same
time.)
Is any trouble detected? Failed harness between the
transfer controller and speed
sensor.
After repairing, trace this chart
from the beginning.
(Repair the engine rotation
detection unit, if required.) Go to step 7.
7
Run the vehicle for several
meters, stop it, meet the
permission requirements for
operation limits.
Did you wait for several seconds
after the requirements were
met? Failed controller.
Replace the controller and trace
this chart from the beginning. You did not wait for enough time.
Optimum waiting time is 1 second
or maximum 3 minutes,
depending on the previous
conditions.
Refer to the paragraph about
operation without failure.
*Before determining a trouble (Non-trouble mode)

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ISUZU KB P190 2007

Page 4936 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 7D1-62 TRANSFER CONTROL SYSTEM
From 4L to 4H: After the correction step 4-3(*), 4Lo indicator blinks at 4H.
Step Action Yes No
1 Is the ignition switch ON? Turn it OFF once.
Go to step 2.
2 Tu

7D1-62 TRANSFER CONTROL SYSTEM
From 4L to 4H: After the correction step 4-3(*), 4Lo indicator blinks at 4H.
Step Action Yes No
1 Is the ignition switch ON? Turn it OFF once.
Go to step 2.
2 Turn ON the ignition switch and
check the valve. Do not start
the engine.
Has the valve check for 2
seconds been completed
normally? Go to step 3.
Refer to the paragraph about the
indicator when it does not react
when shifted from 2H to 4H.
After taking the remedy, trace this
chart from the beginning.
3 Can be shifted to 2H and then to
4L? Go to step 4.
(Impossible usually.)
Failed controller In case of Check 4W D, shifting to
2H is possible.
Returning to 4L is impossible.
Refer to the paragraph about
Check4W D.
4 Set to N position in case of AT
and set to the neutral position in
case of MT and check if the
lamp blinks at 4Hz after
operation.
Failed T/M position switch and
harness (failure of TM1 and TM2
harness and their related
switches shown in the figure).
Incorrect wiring.
Repair as required and trace this
chart from the beginning. Press the operation switch of 4L
and go to step 5.
5 Start the engine and use the
vehicle.
Does the speedometer run at
this time? Go to step 6.
Failure of speed sensor or
disconnection or short of harness
(for the meter).
After repairing, trace this chart
from the beginning.
6 Check the harness between the
transfer controller and speed
sensor.
(Check the engine rotation
detection harness at the same
time.)
Is any trouble detected? Failed harness between the
transfer controller and speed
sensor.
After repairing, trace this chart
from the beginning.
(Repair the engine rotation
detection unit, if required.) Go to step 7.
7
Run the vehicle for several
meters, stop it, meet the
permission requirements for
operation limits.
Did you wait for several seconds
after the requirements were
met? Failed transfer controller.
Replace the controller and trace
this chart from the beginning. You did not wait for enough time.
Optimum waiting time is 1 second
or maximum 3 minutes,
depending on the previous
conditions.
Refer to the paragraph about
operation without failure.
*Before determining a trouble (Non-trouble mode)

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TO MODEL INDEX
ISUZU KB P190 2007

Page 4937 of 6020

ISUZU KB P190 2007 Workshop Repair Manual TRANSFER CONTROL SYSTEM 7D1-63
To neutral: After the correction step 5-2(*), neutral indicator blinks at 4Hz.
Check the function between H and L according to the chart for 4L to 4H instead of che

TRANSFER CONTROL SYSTEM 7D1-63
To neutral: After the correction step 5-2(*), neutral indicator blinks at 4Hz.
Check the function between H and L according to the chart for 4L to 4H instead of check
for the requirements of neutral.
Step Action Yes No
1 Is the ignition switch ON? Turn it OFF once. Go to step 2.
2 Turn ON the ignition switch and
check the valve. Do not start the
engine.
Has the valve check for 2
seconds been completed
normally? Go to step 3.
Refer to the paragraph about the
indicator when it does not react
when shifted from 2H to 4H (7D1-
37).
After taking the remedy, trace this
chart from the beginning.
3 Can be shifted to 2H and then to 4L? Go to step 4.
(Impossible usually.)
Failed controller Refer to the paragraph about
shifting from 2H to 4H.
In particular, check if not at the
Check4W D condition, return to
this chart and trace it from the
beginning.
In case of Check4W D, shifting to
2H is possible.
Returning to 4H is impossible.
Refer to the paragraph about
Check4W D.
4 Set to N position in case of AT and set to the neutral position in
case of MT and check if the lamp
blinks at 4Hz after operation. Failed T/M position switch and
harness (failure of TM1 and TM2
harness and their related
switches shown in the figure).
Incorrect wiring.
Repair as required and trace this
chart from the beginning. Shift back to 4H and go to step 5.
5 Start the engine and use the
vehicle.
Does the speedometer run at this
time? Go to step 6.
Failure of speed sensor or
disconnection or short of harness
(for the meter).
After repairing, trace this chart
from the beginning.
6 Check the harness between the transfer controller and speed
sensor.
(Check the engine rotation
detection harness at the same
time.)
Is any trouble noticed? Failed harness between the
transfer controller and speed
sensor.
After repairing, trace this chart
from the beginning.
(Repair the engine rotation
detection unit, if required.) Go to step 7.
7 Run the vehicle for several
meters, stop it, meet the
permission requirements for
operation limits.
Did you wait for several seconds
after the requirements were met? Failed controller.
Replace the controller and trace
this chart from the beginning. You did not wait for enough time.
Optimum waiting time is 1 second
or maximum 3 minutes,
depending on the previous
conditions.
Refer to the paragraph about
operation without failure.
*Before determining a trouble (Non-trouble mode)
For shifting to neutral, 2H and 4L switches should be pressed at the same time for 10 seconds.
For shifting from neutral to other position, 2H, 4H or 4L switch should be pressed for 10 seconds.
W hen shifting from neutral to other position, the lamp blinking at 2Hz indicates active condition.
W hen the lamp keeps blinking at 2Hz, follow the step for the case when the lamp keeps blinking at 2Hz when
shifting between positions.

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ISUZU KB P190 2007

Page 4969 of 6020

ISUZU KB P190 2007 Workshop Repair Manual ELECTRICAL-BODY AND CHASSIS 8A-31
FUSE AND SLOW BLOW FUSE LOCATION
RELAY & FUSE BOX (ENGINE ROOM)
RHD

FUSE ∗1 AUSTRALIA
ENGINE MODEL
FUSE NO. C24SE
HFV6 4JA1T (L) 4JJ1-TC/ 4JK1-TC

Page 4970 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 8A-32 ELECTRICAL-BODY AND CHASSIS
FUSE AND SLOW BLOW FUSE LOCATION
RELAY & FUSE BOX (ENGINE ROOM)
LHD

FUSE ∗2 W ITH HEADLIGHTS LEVELING
ENGINE MODEL
FUSE NO. C24SE HFV6 4JH1-TC 4JA1T (

Page 5281 of 6020

ISUZU KB P190 2007 Workshop Repair Manual ELECTRICAL-BODY AND CHASSIS 8A-343
TROUBLESHOOTING
SPEEDOMETER
1. Speedometer and odometer do not function

Checkpoint Trouble Cause Countermeasure

Replace the vehicle speed
sensor

Page 5282 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 8A-344 ELECTRICAL-BODY AND CHASSIS
3. Speedometer pointer jumps erratically

Checkpoint Trouble Cause Countermeasure

Replace the vehicle speed
sensor, or repair an open
circuit in the c

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