sensor ISUZU TF SERIES 2004 Workshop Manual

8A-278 ELECTRICAL-BODY AND CHASSIS
Low Fuel Indicator Light Inspection
1. Disconnect the fuel tank unit wire connector.
2. Turn the key switch on. Check that the bulb lights.
If operation is not correct, remove and check the bulb or circuit.
or If check whether low fuel turns on fuel input (B-24) at the
time of open and key on.
 meter is check at low fuel
140R300006





Check level sensor operation
1. Remove the fuel tank unit.
2.
Apply battery voltage between terminal (B) and (C) through
a 1.12 watt bulb. Check that the bulb lights.
Note:
It will take a short time for the bulb light.
3. Submerge the sensor in fuel. Check that the bulb goes out.
If operation is not correct, replace the fuel tank unit.

BRAKE SYSTEM WARNING LIGHT
The brake system warning light comes on while the parking
brake is set and the engine run position.
Note:
The parking brake indicator light circuit is designed to
prevent driving of the vehicle with the parking brake on.
It does not indicate the condition of the parking brake
system.



The parking brake switch is in parallel with the brake fluid
switch.



The brake system warning light also comes on when reservoir
brake fluid level falls below the specified limit with the parking
brake released and the engine run position.

ELECTRICAL-BODY AND CHASSIS 8A-279




VEHICLE SPEED SENSOR (INSTALLED
ON THE TRANSMISSION)
The speed sensor is installed on the rear portion of the
transmission.
The number of pulses generated is four pulses per one rotation
of the pinion shaft.


RTW38DLF000201

8A-280 ELECTRICAL-BODY AND CHASSIS


Vehicle Speed Sensor Inspection
1. Connect the vehicle speed sensor connector 1 E-44to the
battery (+) terminal and 2
E-44 to the (-) terminal.
2. Connect a resistance of 1.3K ohm to 5K ohm (1/4 W o
r
more) between connectors 1 E-44 and 3 E-44


CAUTION:
Be extremely careful not to connect the battery (+)
terminal to the connector 3
E-44.
This may damage the vehicle speed sensor.



3. Rotate the shaft of the vehicle speed sensor slowly and
measure the voltage at the both ends with a digital tester.

The voltage, with one rotation of shaft fluctuates four times in
the following range: 10 to 14V - 2V or less.

ELECTRICAL-BODY AND CHASSIS 8A-419


No. Connector face No. Connector face
B-32
NOT USED B-44

Keyless Entry (B)
B-33

Illumination control B-45
WhiteAlarmer control unit
B-34
NOT USED B-46
Gray
Rear defogger timer
B-35
Yellow
Infrator; passenger side B-47
WhiteGlove box illumination
B-36
Yellow
Infrator; Driver side B-48
BlackG/sensor
B-37
~
B-39 NOT USED B-49
White
A/T Lever
B-40
Black
Acc socket relay B-50
WhitePower/3rd start switch
B-41
Natural
Acc socket B-51
~
B-52 NOT USED
B-42
White
Acc socket B-53
WhiteJ/B I1
B-43

Keyless Entry (A) B-54
WhiteJ/B I2

ELECTRICAL-BODY AND CHASSIS 8A-423


No. Connector face No. Connector face
C-36
Silver
Engine room-LH ; Ground C-54
(6VE1)
(4JH1-TC)
OrangeABS sensor Front-LH
C-37
Black
Brake fluid level switch C-55
BrownThermo AMP
C-38
(4JH1-TC)
Vacuum switch C-56
(C24SE)
ECM
C-39

Parking brake switch (stick type) C-56
(4JA1-TC
4JH1-TC)
ECM-A
C-40
~
C-43 NOT USED C-57
(4JA1-TC
4JH1-TC)
ECM-B
C-44
White
Stop lamp switch C-58
~
C-62 NOT USED
C-45
~
C-49 NOT USED C-63
(6VE1)
(4JH1-TC)
Gray Front Fog lamp-RH
C-50

Condenser fan C-64
(6VE1)
(4JH1-TC)
Gray Front Fog lamp-LH
C-51
~
C-52 NOT USED C-65
~
C-66 NOT USED
C-53
(6VE1)
(4JH1-TC)
Orange ABS sensor Front-RH C-67
(6VE1)
(4JH1-TC)
BlackEHCU

ELECTRICAL-BODY AND CHASSIS 8A-425


No. Connector face No. Connector face
C-120
(6VE1)
Auto cruise control


C-121
(C24SE)
IAT sensor


C-122
(C24SE)
White Co adjuster connector


C-123
(4JA1/A1-
TC)
Black EVRV; T/C


C-124

Black Lowe pressure sensor


C-125

White Therrmoswitch (Air)


C-126

White QOS controlunit

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