sensor ISUZU KB P190 2007 Workshop Repair Manual

TRANSFER CONTROL SYSTEM 7D1-13
Item 4WD
lamp 4L lamp Neutral
lamp Check
4WD
warning light 4WD
switch Actu ato r
detection (limit)
switches
LS1, LS2, LS3. and LS4
1 = on
2 = off Transfer
4WD
switch Transfer
neutral switch SOF
actuator switch Or
Axl e
dummy Remarks
During
operation On Blinking
(2HZ) Off Off No
operation 1,1,0,1 Closed Open Closed 4L to 4H
while
driving
During
operation (N) Off
Blinking
(2HZ) Off Off No
operation 1,1,0,0 Closed Closed Closed 4L to 4H
through neutral
During
operation Off Blinking
(2HZ) Off Off No
operation 0,1,0,1
0,0,0,1 Closed Closed Closed 4L to 4H
while
driving
4H
waiting Off Blinking
(2HZ) Off Off No
operation 0,0,1,1 Closed Closed Closed
4L to 4H
while
waiting
4H On Off Off Off No
operation 0,0,1,1 Closed Open Closed -----
2H start of
operation On Off Off Off 2H position
for 0.1
second 0,0,1,1 Closed Open Closed Switch
operation sensor
Start of
operation Blinking
(2HZ) Off Off Off No
operation 0,1,1,1
0,1,1,0
0,0,1,0
1,1,1,0 Closed Open Closed
2H to 4H
while
driving
During
operation (Axle) Blinking
(2HZ) Off Off Off No
operation 0,1,1,1
0,1,1,0
0,0,1,0
1,1,1,0 Open Open Closed Axle drive
Axle
waiting
Blinking
(2HZ) Off Off Off No
operation 1,0,1,0 Open Open Closed Axle
waiting
2H Off Off Off Off No
operation 1,0,1,0 Open Open Open -----


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7D1-16 TRANSFER CONTROL SYSTEM
Transfer-related indicator lamp and switch function
Skip operation
Item 4WD
lamp 4L lamp Neutral
lamp Check
4WD
warning light 4WD
switch Actu ato r
detection (limit)
switches LS1,
LS2,
LS3. and LS4
1 = on
2 = off Transfer
4WD
switch Transfer
neutral switch SOF
actuator switch Or
Axl e
dummy Remarks
2H Off Off Off Off No
operation1,0,1,0 Open Open Open -----
4L start of
operation Off Off Off Off 4L
position for 0.1
second 1,0,1,0 Open Open Open
Switch
operation sensor
Start of
operation Blinking
(2HZ) Blinking
(2HZ) Off Off No
operation 1,1,1,0
0,0,1,0
0,1,1,0
0,1,1,1 Open Open Open
2H to 4H
while
driving
During
operation
(Synchro) Blinking
(2HZ) Blinking
(2HZ) Off Off No
operation 1,1,1,0
0,0,1,0
0,1,1,0
0,1,1,1 Open Open Open 2H to 4H
using
synchro
and retrial
During
operation (Passing through 4H) Off
Blinking
(2HZ) Off Off No
operation 0,0,1,1 Closed Open Open -----
During
operation (Passing through 4H) Off
Blinking
(2HZ) Off Off No
operation 0,0,1,1
0,1,0,1 Closed Open Open -----
During
operation
(N)
On Blinking
(2HZ) Off Off No
operation
0,0,1,1
0,1,0,1 Closed Open Closed -----
During
operation (N) On
Blinking
(2HZ) Off Off No
operation 0,1,0,0 Closed Open Closed Switch
operation sensor
During
operation (N) On
Blinking
(2HZ) Off Off No
operation 0,0,1,1 Closed Open Closed 4H to 4L
while
driving
During
operation (Axle
drive) Blinking
(2HZ) Blinking
(2HZ) Off Off No
operation 0,0,1,1 Closed Open Open
-----
Axle
waiting Blinking
(2HZ) Blinking
(2HZ) Off Off No
operation 0,0,1,1 Closed Open Open -----
4L waiting On Blinking
(2HZ) Off Off No
operation 1,1,0,1 Closed Closed Closed 4H to 4L
while
waiting
4L On On Off Off No
operation1,1,0,1 Closed Open Closed -----

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TRANSFER CONTROL SYSTEM 7D1-17
Item 4WD
lamp 4L lamp Neutral
lamp Check
4WD
lamp 4WD
switch Actu ato r
detection (limit)
switches LS1,
LS2,
LS3. and LS4
1 = on
2 = off Transfer
4WD
switch Transfer
neutral switch SOF
actuator switch Or
Axl e
dummy Remarks
2H start
of
operation On On Off Off 2H
position for 0.1
second 1,1,0,1 Closed Open Closed
Switch
operation sensor
During
operation Blinking
(2HZ) Blinking
(2HZ) Off Off No
operation 1,1,0,1 Closed Open Closed 4L to 4H
while
driving
During
operation (Passing through N) On
Blinking
(2HZ) Off Off No
operation 1,1,0,0 Closed Closed Closed 4L to 4H
through neutral
During
operation (Passing through N) Off
Blinking
(2HZ) Off Off No
operation 0,1,0,0 Closed Closed Closed 4L to 4H
through neutral
During
operation (4H
waiting) Off
Blinking
(2HZ) Off Off No
operation 0,0,1,1 Closed Closed Closed 4L to 4H
while
waiting
During
operation (Axle) Off while
waiting for start of H shift Blinking
(2HZ) while
waiting for start of H shift Off Off
No
operation 0,1,1,1
0,1,1,0
0,0,1,0
1,1,1,0 Closed Open Closed
2H to 4H
while
driving
During
operation (Axle) Blinking
(2HZ) at
end of H shift Off at end
of H shift Off Off No
operation 0,1,1,1
0,1,1,0
0,0,1,0
1,1,1,0 Closed Open Closed
Axle
driving
Axle
waiting
Blinking
(2HZ) Off Off Off No
operation1,0,1,0 Open Open Closed -----
2H Off Off Off Off No
operation1,0,1,0 Open Open Open -----

• Completion of transfer case H-L area and axle shift timing may cause some variation in the 2Hz blinking pattern.


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TRANSFER CONTROL SYSTEM 7D1-19
Transfer-related indicator lamp and switch function
2H→Neutral →2H
Item 4WD
lamp 4L lamp Neutral
lamp Check
4WD
warning light 4WD
switch Actu ato r
detection (limit)
switches LS1,
LS2,
LS3. and LS4
1 = on
2 = off Transfer
4WD
switch Transfer
neutral switch SOF
actuator switch Or
Axl e
dummy Remarks
2H Off Off Off Off No
operation1,0,1,0 Open Open Open -----
Neutral
start of
operation Off Off Off Off Neutral
position for 10
seconds 1,0,1,0 Open Open Open
Switch
operation sensor
Start of
operation Off Off Blinking
(2HZ) Off No
operation 1,1,1,0
0,0,1,0
0,1,1,0
0,1,1,1 Open Open Open
2H to 4H
while
driving
During
operation
(Synchro) Off Off
Blinking
(2HZ) Off No
operation 1,1,1,0
0,0,1,0
0,1,1,0
0,1,1,1 Open Open Open 2H to 4H
using
synchro
and retrial
During
operation (Passing through 4H) Off Off
Blinking
(2HZ) Off No
operation 0,0,1,1 Closed Open Closed -----
During
operation (Passing through 4H) Off Off
Blinking
(2HZ) Off No
operation 0,0,0,1
0,1,0,1 Closed Open Closed 4H to 4L
while
driving
During
operation
(N)
Off Off Blinking
(2HZ) Off No
operation
0,0,0,1
0,1,0,1 Closed Closed Closed
4H to 4L
through
neutral
During
operation (N) Off Off
Blinking
(2HZ) Off No
operation 0,1,0,0 Closed Closed Closed Switch
operation sensor
Neutral Off Off On Off No
operation0,1,0,0 Closed Closed Open -----
2H start of
operation Off Off On Off 2H
position for 10
seconds 0,1,0,0 Closed Open Closed
Switch
operation sensor
During
operation (Passing through N) Off
Blinking
(2HZ) Off Off No
operation 0,1,0,0 Closed Closed Closed 4L to 4H
through neutral
During
operation Off Blinking
(2HZ) Off Off No
operation 0,1,0,1
0,0,0,1 Closed Closed Closed 4L to 4H
while
driving

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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



BlackReverse switch
E36



TACHO sensor E110



BrownBackup light switch
E42

Natural green
Backup light switch E111



BrownNeutral switch
E43

Natural green
Backup light switch E116



Backup light switch
E44


Black
Vehicle speed sensor F5



Gray Rear combination light-RH
E45


Gray
2W D-4W D switch F6



BlackRear combination light-LH
E46


Brown
H-L neutral switch H3
(HFV6
4JH1-TC)

Gray
GBattery (+) ~ Engine room
E51


Gray
Inhibiter switch (AW 30-40LE) H4
(HFV6)
(C24SE)
WhiteEngine room ~ Mission
E51


Black
Inhibitor switch (JR405E) H4
(4JH1-TC)


White
Engine ~ Engine room


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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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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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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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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
EB1 15A ECM
← 10A ACG (S)
←
EB2
 15A 02 SENS PRE
 10A ECM (B)
EB3 15A FRT FOG 10A ECM (B)
 10A F/PUMP

20A TRAILER ∗1
EB4 10A ACG (S)
10A TCM PIM B
 10A ENGINE
EB5 10A ILLUMI
10A H/L (RH) HI
← ←

10A H/L (RH) HI ∗1
EB6 10A H/L (LH) HI
← ← ←
EB7 10A H/L (RH) LOW
← ← ←
EB8 10A H/L (LH) LOW
← ← ←
EB9 20A F/PUMP 20A TRAILER
 20A TRAIKER
EB10 10A SENSOR   20A COND, FAN
EB11 10A TAIL (RH)
← ← ←
EB12 10A ILLUMI & TAIL-LH
← ← ←
EB13 10A A/C
← ← ←
EB14 10A 4W D
← ← ←
EB15 10A HORN
← ← ←
EB16 10A HAZARD
← ← ←

SLOW BLOW FUSE
ENGINE MODEL
FUSE NO. C24SE
HFV6 4JA1T (L) 4JJ1-TC / 4JK1-TC
SBF1 100A MAIN ←

80A MAIN 120A MAIN
SBF2

20A FRT FOG
40A ABS1 ←

SBF3 
60A RAD. FAN
20A ABS2 ←

SBF4 20A COND, FAN 20A F/PUMP
20A COND, FAN 40A ECM
SBF5 40A IG 1
←
← ←
SBF6 

30A BLOW ER ←
←
SBF7 20A FRT FOG
40A ABS1 20A FRT FOG ←

SBF8 30A BLOW ER
20A ABS2 50A GLOW 60A GLOW
SBF9
50A IG 2
60A IG 2 50A IG 2 60A IG 2



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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 (L) 4JJ1-TC / 4JK1-TC
EB1 15A ECM 15A ECM 10A ACG (S)
← ←
EB2
 15A 02 SENS PRE
  10A ECM (B)
EB3
 10A ECM (B)
  10A F/PUMP
EB4 10A ACG (S) 10A TCM PIM B 10A ECM
 10A ENGINE
EB5
10A H/L (RH) HI ∗2 10A H/L (RH) HI
10A H/L (RH) HI ∗2 10A H/L (RH) HI
←
EB6
10A H/L (LH) HI ∗2 10A H/L (LH) HI
10A H/L (LH) HI ∗2 10A H/L (LH) HI
←
EB7 10A H/L (RH) 10A H/L (RH) LOW 10A H/L (RH) 10A H/L (RH)
LOW ←

10A H/L (RH) LOW
∗ 2
10A H/L (RH) LOW
∗ 2
EB8 10A H/L (LH) 10A H/L (LH) LOW 10A H/L (LH)
10A H/L (LH)
LOW ←

10A H/L (LH) LOW
∗ 2
10A H/L (LH) LOW ∗2
EB9 20A F/PUMP
   20A TRAILER
EB10 10A SENSOR
 20A COND FAN
 20A COND FAN
EB11 10A TAIL (RH)
← ← ← ←
EB12 10A ILLUMI & TAIL
LH ←
← ← ←
EB13 10A A/C
← ← ← ←
EB14 10A 4W D
← ← ← ←
EB15 10A HORN
← ← ← ←
EB16 10A HAZARD
← ← ← ←
SLOW BLOW FUSE
ENGINE MODEL
FUSE NO. C24SE
HFV6 4JH1-TC 4JA1T (L) 4JJ1-TC / 4JK1-TC
SBF1 100A MAIN ←

80A MAIN ←
120A MAIN
SBF2 

20A FRT FOG 40A ABS1 
40A ABS1
SBF3 

60A RAD. FAN 30A ABS2 20A ABS2
←
SBF4 20A COND, FAN 20A F/PUMP 30A ECM 20A CON FAN 40A ECM
SBF5 40A IG 1
←
← ←
←
SBF6 

30A BLOW ER ←
←
←
SBF7 20A FRT FOG 40A ABS1 20A FRT FOG ←

←
SBF8 30A BLOW ER 20A ABS2 60A GLOW 50A GLOW 60A GLOW
SBF9 50A IG 2
60A IG 2 50A IG 2
← 60A IG 2


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