2007 ISUZU KB P190 BATTERY

TRANSFER CASE 7D-17
LHD











RTW 77DMF000101
Legend

(1) Transfer Control Unit

(2) Nut


Removal
1. Disconnect the battery ground cable.
2. Disconnect the harness connector from the Transfe
r
control unit.
3. Remove the Transfer control unit.
Installation

1. Install the Transfer control unit.
Transfer control unit torque: 7 N ⋅
⋅⋅
⋅
m (0.7 kgf ⋅
⋅⋅
⋅
m/61 lb ⋅
⋅⋅
⋅
in)
2. Connect the harness connector to the Transfe
r
control unit.
3. Connect the battery ground cable.



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ISUZU KB P190 2007

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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ISUZU KB P190 2007

7D1-44 TRANSFER CONTROL SYSTEM

No. Connector face No. Connector face
H4
(4JJ1-TC)


White
Engine ~ Engine room H23
(4JA1-L)

WhiteEngine room B ~ T/misson
H5
(HFV6
4JH1-TC)

White
Engine room ~ Mission H27



NOT USED
H5
(4JJ1-TC
4JA1-L)


White
Engine ~ Engine room H29
(C24SE)

Battery (+) ~ Engine room
H6


White
Engine room ~ INST H32
(C24SE)

Engine room ~ Rear body
H7


White
Engine room ~ INST H48



WhiteEngine room ~ INST
H7
(4JJ1-TC)


White
Engine room ~ INST H50



Engine & Mission ~
H15
(HFV6
4JH1-TC)

Black
Engine room ~ Chassis M26
(C24SE)

Brown2W D-4W D switch
H15
(
4JJ1-TC,
4JA1-L)
Black
Engine room ~ Chassis M27
(C24SE)

BrownHead leveling neutral switch
H18


White
Engine room ~ INST P1



SilverBattery (+)
H23


White
Engine ~ Engine room B P2



SilverRelay & Fuse box


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ISUZU KB P190 2007

TRANSFER CONTROL SYSTEM 7D1-45

No. Connector face No. Connector face
P5



Silver
Battery (-)

P6



Silver
Body earth (Ground)

P7




Battery (ALT)

P10



Silver
Engine ground

P11



Silver
Fuse & relay box

P13



Gray
Shift on the fly actuator

R14



Black
2W D-4W D control unit

R15



Black
2W D-4W D control unit

X12



Black
ECM main relay





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ISUZU KB P190 2007

ELECTRICAL-BODY AND CHASSIS 8A-1
SECTION 8A
ELECTRICAL-BODY AND CHASSIS
TABLE OF CONTENTS
PAGE
General Information ........................................................................................................... .........8A- 4
Notes for Working on Electrical Items .......................................................................................8A - 5
Symbols and A bbreviations ..................................................................................................... ..8A- 11
Symbols ....................................................................................................................... ................ 8A- 11
Abbreviations ................................................................................................................. ..............8A- 12
Parts for Electri cal Circuit .................................................................................................. ........8A- 13
Wiring ........................................................................................................................ ...................8A- 13
Fuse .......................................................................................................................... ....................8A- 15
Fusible Link .................................................................................................................. ...............8A- 15
Relay ......................................................................................................................... ....................8A- 16
Diode ......................................................................................................................... ...................8A- 17
Connector ..................................................................................................................... ...............8A- 18
Battery ....................................................................................................................... ...................8A- 19
Reading the Circuit Diagram ................................................................................................... ...8A- 22
Parts Location ................................................................................................................ ..............8A- 22
Circuit Diagram ............................................................................................................... .............8A- 23
Connector List ................................................................................................................ .............8A- 23
Main Data and Specifications .................................................................................................. ...8A- 24
Bulb Specifications ........................................................................................................... ..........8A- 24
Relay and Fuse ................................................................................................................ ............8A- 26
Relay and Fuse Box Location (RHD) .........................................................................................8A- 26
Relay and Fuse Box Location (LHD) ..........................................................................................8A- 27
Relay Location ................................................................................................................ .............8A- 28
Fuse and Slow Blow Fuse Location ...........................................................................................8A- 31
Fuse Location ................................................................................................................. .............8A- 33
Diode Location ................................................................................................................ .............8A- 34
Fuse Block Circuit (C24SE) .................................................................................................... ....8A- 35/36
Fuse Block Circuit (HFV6) ...................................................................................................... .....8A- 37


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ISUZU KB P190 2007

8A-4 ELECTRICAL-BODY AND CHASSIS
GENERAL INFORMATION
The body and chassis electrical system operates on a twelve volt power supply with negative ground polarity.
The main harness consists of the engine harness, the instrument harness, the body harness, and the chassis
harness.
The harnesses use a split corrugated tube to protect the wires from the elements.
W ire size is determined by current flow, circuit length, and voltage drop.
All wires have color-coded insulation.
W ire color-codes are shown in the circuit diagrams.
This makes it easier to trace circuits and to make the proper connections.
Each circuit consists of the following:
5. Power source – The battery and the alternator
5. W ires – To carry electrical current through the circuit
5. Fuses – To protect the circuit against current overload
5. Relays – To protect voltage drop between the battery and the circuit parts and to protect the switch points against burning
5. Switches – To open and close the circuit
5. Load – Any device, such as a light or motor, which converts the electrical current into useful work
5. Ground – To allow the current to flow back to the power source


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ELECTRICAL-BODY AND CHASSIS 8A-5
NOTES FOR WORKING ON ELECTRICAL ITEMS
Battery

BATTERY CABLE
Disconnecting the Battery Cable
5. All switches should be “OFF” position.
5. Disconnect the battery ground cable.
5. Disconnect the battery positive cable.
CAUTION:
It is important that the battery ground cable be
disconnected first.
Disconnecting the battery positive cable first can result in
a short circuit.














Connecting the Battery Cable
Follow the disconnecting procedure in the reverse order to
connect the battery cables.
CAUTION:
Clean the battery terminal and apply light coat of grease to
prevent terminal corrosion.




CONNECTOR HANDLING
Disconnecting the Connectors
Some connectors have a tang lock to hold the connectors
together during vehicle operation.
Some tang locks are released by pulling them towards you
1.
Other tang locks are released by pressing them forward
2.
Determine which type of tang lock is on the connector being
handled.




Firmly grasp both sides (male and female) of the connector.
Release the tang lock and carefully pull the two halves of the
connector apart.
Never pull on the wires to separate the connectors.
This will result in wire breakage.


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8A-16 ELECTRICAL-BODY AND CHASSIS


RELAY
Battery and load location may require that a switch be placed
some distance from either component.
This means a longer wire and a higher voltage drop
1. The
installation of a relay between the battery and the load reduces
the voltage drop
2.
Because the switch controls the relay, amperage through the
switch can be reduced.


Relay Specifications and Configurations
Name/ Color Rated
voltage/ Coil resistance Internal circuit
Name/
color Rated
Voltage/Coil resistance Internal circuit
1T
(MICRO ISO)
/Black 12V
Approx. 92 Ω
Minimum
operating
voltage: 7V at
20 °C (77 °F)

1M (MINI
ISO)
/Black 12V Approx.
94 Ω Minimum
operating
voltage: 7V at
20 °C (77 °F)
1M
(MICRO ISO)
/Black 12V
Approx. 132-3
Ω Minimum
operating
voltage: 7V at
20 °C (77 °F)

1M
(power)/ Black 12V Approx.
94 Ω Minimum
operating
voltage: 7V at
20 °C (77 °F)
* Relay contact shown in the wiring diagram indicates condition before actuation.


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