switch ISUZU TF SERIES 2004 Workshop Manual

8A-428 ELECTRICAL-BODY AND CHASSIS


No. Connector face No. Connector face
E-1
(4JH1-TC)
White Oil pressure switch E-10
SilverEngine ground
E-2
(C24SE)
(6VE1)


Magnetic clutch E-11
(6VE1)

Neutral switch
E-3
(4JH1-TC)
Black
Magnetic clutch AC COMP E-11
(4JH1-TC)
Natural
green
Neutral switch
E-4
~
E-5 NOT USED E-12
(6VE1)

Neutral switch
E-6
(C24SE)
(6VE1)


(6VE1) Fuel injector (C24SE) E-12
(4JH1-TC)
Natural
green
Neutral switch
E-6
(4JH1-TC)

Injector pump E-13
~
E-17 NOT USED
E-7
(C24SE)
(6VE1)


(6VE1) Fuel injector (C24SE) E-18
(C24SE)

Ignition coil
E-8
(C24SE)
(6VE1)


(6VE1) Fuel injector (C24SE) E-19
(4JH1-TC)
Blue Thermo meter unit
E-9
(C24SE)
(6VE1)


(6VE1) Fuel injector (C24SE) E-20
~
E-21 NOT USED
E-9
(4JH1-TC)
Gray T.D.C sensor E-22
(4JH1-TC)
BrownTPS 1 main

ELECTRICAL-BODY AND CHASSIS 8A-429


No. Connector face No. Connector face
E-23
(4JH1-TC)
Gray TPS 2 main E-44
Gray Vehicle speed sensor
E-24
~
E-29 NOT USED E-45
(4JH1-TC)
Gray 2WD-4WD switch
E-30
(4JH1-TC)
Gray A/T speed sensor E-46
(4JH1-TC)
BrownH-L neutral switch
E-31
(4JH1-TC)
Gray Turbine sensor E-47
~
E-48 NOT USED
E-32
~
E-34 NOT USED E-49
(4JH1-TC)
Glow plug
E-35
(4JH1-TC)
(C24SE)
Black Motor actuator E-50

NOT USED
E-36
~
E-40 NOT USED E-51
(6VE1)
Fuel injector
E-41
(4JH1-TC)
Black Coolant temp sensor E-51
(4JH1-TC)
BlackInhibiter switch
E-42
Natural
green
Backup lamp switch E-52
(6VE1)
Fuel injector
E-43
Natural
green
Backup lamp switch E-53
(6VE1)
Ignition coil

8A-430 ELECTRICAL-BODY AND CHASSIS


No. Connector face No. Connector face
E-54
(6VE1)
Ignition coil E-62
(6VE1)
Cam position sensor
E-54
(4JH1-TC)
Black A/T term ASM E-64
(C24SE)
(6VE1)
Oil pressure switch (P/STRG)
E-55
(6VE1)
Ignition coil E-65
(C24SE)
(6VE1)
Thermo unit
E-56
(6VE1)
Ignition coil E-66
(C24SE)
(6VE1)
Duty solenoid
E-57
(6VE1)
Ignition coil E-67
NOT USED
E-58
(6VE1)
Ignition coil E-68
(C24SE)
Throttle position sensor
E-59
(C24SE)
(6VE1)
(6VE1) Crank position sensor (C24SE) E-68
(6VE1)
Throttle position sensor
E-60
(C24SE)
ECM E-69
(6VE1)
Temperature sensor
E-60
(6VE1)
ECM-A E-70
(C24SE)
IACV
E-61
(6VE1)
ECM-B E-70
(6VE1)
IACV

ELECTRICAL-BODY AND CHASSIS 8A-431


No. Connector face No. Connector face
E-71

NOT USED E-80
(6VE1)
Cylinder revolution
E-72
(C24SE)
(6VE1)
Engine earth-A E-81
(6VE1)
Speed sensor
E-73
(6VE1)
Engine earth-A E-82
(6VE1)
Transmission wire
E-74
(C24SE)
(6VE1)
Engine earth-B E-83
(6VE1)
Oil temperature sensor
E-75
(C24SE)
(6VE1)
Oil pressure switch E-84
(C24SE)
Knock sensor
E-76
(6VE1)
EGR valve E-85
(C24SE)
MAP sensor
E-77
(C24SE)
O2 sensor E-86
(4JA1-L)
SilverThermo switch; QOS
E-77
(6VE1)
O2 sensor RH-Front E-87
(4JA1-L)
WhiteSolenoid CSD
E-78
(6VE1)
O2 sensor LH-Front E-88
(4JA1-L)
SilverThermo switch; EGR
E-79
(6VE1)
Neutral start switch E-89
(4JA1-L)
White

Immobilizer engine control unit

8A-436 ELECTRICAL-BODY AND CHASSIS


No. Connector face No. Connector face
M-1
~
M-25 NOT USED


M-25
(6VE1)
2WD-4WD Switch


M-27
(6VE1)
H-L Neutral Switch


M-28
(6VE1)
Motor Actuator

8A-438 ELECTRICAL-BODY AND CHASSIS


No. Connector face No. Connector face
R-1
Black
Front door switch-LH R-12
Pretensioner - RH
R-2
NOT USED R-13

Pretensioner - LH
R-3
Gray
Seat belt switch R-14
2-4WD control
R-4
Natural
Parking brake switch (Lever type) R-15
2-4WD control
R-5
NOT USED


R-6
Black
Front door switch-RH


R-7
~
R-8 NOT USED


R-9
Black
Rear speaker-LH


R-10
Black
Rear speaker-RH


R-11

Seat belt switch

CRUISE CONTROL SYSTEM 8B-1
SECTION 8B
CRUISE CONTROL SYSTEM
TABLE OF CONTENTS
PAGE
Service Precaution .........................................................................................................................8B- 3
General Description .......................................................................................................................8B- 3
Brake Switch ...................................................................................................................................8B- 5
Removal .......................................................................................................................................8B- 5
Installation ..................................................................................................................................8B- 5
Adjustment ..................................................................................................................................8B- 6
Clutch switch ...................................................................................................................................8B- 6
Removal and Installation ........................................................................................................8B- 6
Adjustment ..................................................................................................................................8B- 6
Starter Switch ..................................................................................................................................8B- 6
Removal .......................................................................................................................................8B- 6
Installation ..................................................................................................................................8B- 6
Cruise Control Main Switch .........................................................................................................8B- 7
Removal .......................................................................................................................................8B- 7
Installation ..................................................................................................................................8B- 7
Cruise Control Switch (Combination Switch) ........................................................................8B- 7
Removal and Installation ........................................................................................................8B- 7
Cruise Control Unit ........................................................................................................................8B- 8
Removal .......................................................................................................................................8B- 8
Installation ..................................................................................................................................8B- 8
Cruise Actuator ...............................................................................................................................8B- 8
Actuator Cable Diagram ..........................................................................................................8B- 9
Removal .......................................................................................................................................8B- 9
Installation ..................................................................................................................................8B- 9
Adjustment ..................................................................................................................................8B- 9
Mode Switch ....................................................................................................................................8B- 9
Removal and Installation ........................................................................................................8B- 9

8B-2 CRUISE CONTROL SYSTEM
Diagnosis ..........................................................................................................................................8B- 10
DTC Display Condition ............................................................................................................8B- 10
DTC Display Format .................................................................................................................8B- 11
Circuit Diagram ..........................................................................................................................8B- 11
DTC 1-1 Motor System Short Circuit ....................................................................................8B- 13
DTC 1-2 Clutch Open or Short Circuit .................................................................................8B- 14
DTC 1-3 Mechanical Defect ....................................................................................................8B- 15
DTC 1-4 Close Side of Motor System ..................................................................................8B- 16
DTC 2-1 Signal of Vehicle Speed Malfunction ..................................................................8B- 17
DTC 3-1 Turning On Switch at All time or at the same time ..........................................8B- 18

CRUISE CONTROL SYSTEM 8B-3
Service Precaution
WARNING: THIS VEHICLE HAS A SUPPLEMENTAL RESTRAIN SYSTEM (SRS). REFER TO THE SRS
COMPONENT AND WIRING LOCATION VIEW IN ORDER TO DETERMINE WHETHER YOU ARE
PERFORMING SERVICE ON OR NEAR THE SRS COMPONENTS OR THE SRS WIRING. WHEN YOU ARE
PERFORMING SERVICE ON OR NEAR THE SRS COMPONENTS OR THE SRS WIRING, REFER TO THE SRS
SERVICE INFORMATION. FAILURE TO FOLLOW WARNINGS COULD RESULT IN POSSIBLE AIR BAG
DEPLOYMENT, PERSONAL INJURY, OR OTHER WISE UNNEEDED SRS SYSTEM REPAIRS.

CAUTION: Always use the correct fastener in the proper location. When you replace a faster, use ONLY the
exact part number for that application. Dealer will call out those fasteners that require a replacement after
removal. Dealer will also call out the fasteners that require thread lockers or thread sealant. UNLESS
OTHERWISE SPECIFIED, do not use supplemental coatings (Paints, greases, or other corrosion inhibitors)
on threaded fasteners or fastener joint interfaces. Generally, such coatings adversely affect the fastener
torque and joint Clamping force, and may damaged the fastener. When you install fasteners, use the
correct tightening sequence and specifications. Following these instructions can help you avoid damage to
parts and systems.

General Description
The cruise control keeps the vehicle running at a fixed speed until a signal canceling this fixed speed is received.
When the main switch “AUTO CRUISE” is turned on with the vehicle in the running mode, the battery voltage is
applied to the control unit. When a signal from the control unit while the vehicle is in this state, the cruise control
actuator is activated to operate the system. Also, while the system is operating, the “AUTO CRUISE” indicator light
in the meter assembly lights up.





LTW48BSH000101
1. SET/COAST Switch Function
1. Set Function: When the SET/COAST switch is pressed and released with the main switch on, the speed at
which the vehicle is running at that moment is stored in the memory, and the vehicle automatically runs at the
stored speed.
2. COAST-down Function: When the SET/COAST switch is kept on while the vehicle in running, the vehicle
decelerates during that time. The speed at which vehicle is running when the control switch is pressed in the
memory, and the vehicle automatically returns to the stored speed.
3. Tap-down Function: When the SET/COAST switch is pressed and released instantaneously while the
vehicle is running, the vehicle decelerates a mile for each on/off operation. The vehicle speed at which the
vehicle was running when the SET/COAST was released last is stored in the memory, and the vehicle
automatically returns to this stored speed.

8B-4 CRUISE CONTROL SYSTEM
2. RESUME/ACCEL Switch Function
1. Resume Function: When the RESUME/ACCEL switch is turned on/off after the system is temporarily
deactivated by pressing the brake or clutch pedal while the vehicle is running, the vehicle resumes the speed
stored before the system was released, and the vehicle automatically runs at the stored speed.
2. Accelerate Function: When the RESUME/ACCEL switch is kept on the vehicle accelerates its speed during
that time. The vehicle speed at which the vehicle was running when the switch was turned off is stored in the
memory, and the vehicle automatically returns to this speed.
3. Tap-up Function: When the RESUME/ACCEL switch is turned on and off instantaneously while the vehicle
is running, the vehicle decelerates a mile for each on/off operation. The vehicle speed at which the vehicle
was running when the switch was turned off last is stored in the memory, and the vehicle automatically
returns to this stored speed.

3. CANCEL Function
1. Temporary Cancellation:

Brake pedal is pressed.

Clutch pedal is pressed. (M/T)

Select lever is shifted to any position other than “D”, “3”, “2” or “L”. (A/T)

Cancel switch is operated.

Vehicle speed exceeds about 12.5mph over the vehicle speed stored in the memory.
Turning the RESUME/ACCEL switch will return the vehicle to the speed stored in the cruise control memory.
2. Complete Cancellation:

Starter switch or the main switch is turned off.

Fail-safe function is activated.

Vehicle speed is about 38 km/h mph.

Speed becomes 20 (12.5) km/h (mph) or less form the speed memorized by Control unit.