ISUZU TF SERIES 2004 Workshop Manual

ELECTRICAL-BODY AND CHASSIS 8A-273
Meter connector pin arrangement
Without Tachometer

8A-274 ELECTRICAL-BODY AND CHASSIS





Terminal Connector No. B-23
No. C24SE
1
ABS CONT. (BRAKE)
2


3


4


5


6


7


8


9
BRAKE
10
CHARGE
11
TURN (RIGHT)
12


13


14


15


16


17
ILLUMI (-)
18
ILLUMI (+)

Terminal Connector No. B-24
No. C24SE
1


2
4LO
3
OIL PRESSURE
4


5
4WD
6
CHECK 4WD
7


8


9
SPEED (+)
10
4P OUTPUT
11


12
STARTER
13
TEMP
14
FUEL
15
FRONT FOG
16


17
CHECK ENGINE
18
AIR BAG
19
SEAT BELT
20
BEAM (+)
21
TURN (LEFT)
22
BEAM (-)
23
BEAM (+)
24


25


26
POWER GND
27
SPEED (-)
28
GND UNIT
29
+B
30
IGN

ELECTRICAL-BODY AND CHASSIS 8A-275







Connector No. B-23
Terminal Connector place SOUTH
AFRICA SAUDI
ARABIA ISRAEL EC UK OTHER
1
ABS CONT. (BRAKE)
2
CHECK TRANS
3
A/T-P
4
A/T-R
5
A/T-2
6
A/T-L
7








8








9
BRAKE
10
CHARGE
11
TURN (R)
12
A/T-N
13
A/T-D
14
A/T-3
15
DIFF. LOCK





16
A/T OIL TEMP


17
ILL (-)
18
ILL (+)



RTW48AXF005901

8A-276 ELECTRICAL-BODY AND CHASSIS


Connector No. B-24
Terminal Connector place SOUTH
AFRICA SAUDI
ARABIA ISRAEL EC UK OTHER
1
SEDIMENTER
2
4LO
3
OIL PRESS
4
4WD
5
CHECK 4WD
6
GLOW
7
POWER DRIVE
8








9
SPEED (+)
10
4P OUTPUT
11
TACHO
12
STARTER
13
TEMP
14
FUEL
RR FOG


15
FRONT FOG






16
ABS CONT. (ABS)
17
CHECK ENGINE
18
AIR BAG
SEAT BELT 19
LOW COOLANT





CRUISE SET



20
BEAM (+)




21
TURN (LEFT)
22
BEAM (-)
BEAM (+)


23
FRONT FOG




24
3rd START (A/T)
25








26
POWER GND
27
SPEED (-)
28
GND UNIT
29
+B
30
IGN

ELECTRICAL-BODY AND CHASSIS 8A-277
140R300007
Thermo Unit Inspection
INSPECTION
Use a circuit tester to measure the thermo unit resistance.
Replace the unit when the result of inspection is found
abnormal.


Temperature
Check
condition 60C
(140F) 115C
(239F)
Resistance
value ()
168 3.5 +2.5
30.9 –2.0
041R300002


Fuel Tank Unit Inspection
Measure the fuel tank unit resistance between the connector
terminals 1
F-2 and 3 F-2 while shifting the float from “E”
to “F” point.
Fuel Tank Resistance

Level Float position
mm Standard resistance

F (B) 217.5 +2.2
17 –0.8

1/2 (A) 105.1 (C24SE,
4JA1-L, 6VE1)
112.8 (4JA1-TC,
4JH1-TC)
45  4.5
E (C) 16.2 120  2.0

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-281
HEATER AND AIR CONDITIONING
PARTS LOCATION (RHD)







RTW48AXF018801 & RTW48AXF018901

8A-282 ELECTRICAL-BODY AND CHASSIS

PARTS LOCATION (LHD)






RTW48AXF019001 & RTW48AXF019101