sensor ISUZU TF SERIES 2004 Owners Manual

ANTI-LOCK BRAKE SYSTEM 5B-17

A03R300003
Legend


1.
Bench Press Fitting

2.
Steel Plate (25-30 mm thickness)


3.
Axle Shaft

4.
Sensor Rotor

Inspection and Repair
Make all necessary adjustments, repairs or part
replacement.


Check damage or powdered iron sticking to the
sensor rotor.


Check play in the sensor rotor.


Check a broken tooth or indentation in the senso
r
rotor.
NOTE: If replacement is required remove the sensor
rotor from the axle shaft assembly with brake. (Refer to
the section Rear Axle).


Discard the used sensor rotor.

(Snapring, Oil seal and Bearing)

Installation
1. Install the sensor rotor and assemble it into the axle
shaft assembly with back plate. (Refer to the section
Rear Axle)

5B -18 ANTI-LOCK BRAKE SYSTEM

420R300005
Legend


1.
Axle Shaft

2.
Oil Seal

3.
Bolt


4.
Back Plate

5.
Sensor Rotor

6.
Double Taper Roller Bearing

2. Install the axle shaft assembly with brake in the rea
r
axle. (Refer to the section Rear Axle).

ANTI-LOCK BRAKE SYSTEM 5B-19

G-Sensor
G-Sensor and Associated Parts


RTW45BLF000101
Legend


1.
G-Sensor


2.
Nut

Removal
1. Remove the front floor console. (Refer to the section
Floor Console)
2. Disconnect the connector.
3. Remove the nuts.
4. Take out the G-sensor.


Installation
1. Set the G-sensor.
2. Install the nut and tighten it to specified torque.

Torque : 8.0 N·m (0.8 kg·m /69 lb in)
3. Connect the connector.
4.
Install the front floor console. (Refer to the
section Floor Console)

5B -20 ANTI-LOCK BRAKE SYSTEM

Special Tools

ILLUSTRATION PART NO.
PART NAME
ILLUSTRATION
PART NO.
PART NAME

5–8840–2789–0
Installer ; Sensor rotor,
front hub 9-8522-1271-0

Setting Tool
5-8840-0007-0

Grip

ELECTRICAL-BODY AND CHASSIS 8A-31
FUSE AND SLOW BLOW FUSE LOCATION (RELAY AND FUSE BOX)
RELAY & FUSE BOX
RHD

FUSE 
ENGINE MODEL
FUSE NO. C24SE 6VE1 4JA1-TC / 4JH1-TC4JA1-L
EB-1 15A ECM 20A ECM 10A ECM 
EB-2 
10A ECM (B) 10A RR FOG 
EB-3 15A FRT FOG
10A TCM 15A FRT FOG 
EB-4 10A ACG (S) 15A FRT FOG  10A ACG (S)
EB-5 10A ILLUMI  10A ILLUMI & TAIL-RH10A ILLUMI
EB-6 10A TAIL  10A TAIL-LH 10A TAIL
EB-7 10A H/LIGHT-RH  10A H/LIGHT RH-LOW10A H/LIGHT RH
EB-8 10A H/LIGHT-LH  10A H/LIGHT LH-LOW10A H/LIGHT LH
EB-9 20A FUEL PUMP 10A O2 SENSOR 10A TRA ILER 
EB-10 10A O2 SENSOR 20A FUEL PUMP 10A AC G (S) 
EB-11 
10A H/LIGHT RH-HIGH 
EB-12 
10A H/LIGHT LH-HIGH
EB-13 10A A/C 
 
EB-14 10A 4WD
10A 4WD  
EB-15 10A HORN   
EB-16 15A HAZARD 10A HAZARD  

SLOW BLOW FUSE
ENGINE MODEL
FUSE NO. C24SE 6VE1 4JA1-TC / 4JH1-TC4JA1-L
SBF-1 100A MAIN 
80A MAIN 
SBF-2  
20A COND, FAN 
SBF-3  
60A GLOW 20A COND, FAN
SBF-4 20A COND, FAN 
30A ECM 50A GLOW
SBF-5 40A IG 1   
SBF-6 
40A ABS-1  
SBF-7 
30A ABS-2  
SBF-8 30A BLOWER   
SBF-9 50A IG 2

8A-32 ELECTRICAL-BODY AND CHASSIS
FUSE AND SLOW BLOW FUSE LOCATION (RELAY AND FUSE BOX)
RELAY & FUSE BOX
LHD

FUSE  Saudi Arabia
ENGINE MODEL
FUSE NO. C24SE 6VE1 4JA1-TC / 4JH1-TC4JA1-L
EB-1 15A ECM 20A ECM 10A ECM 
EB-2 
10A ECM (B) 10A RR FOG 
EB-3 15A FRT FOG
10A TCM 15A FRT FOG 
EB-4 10A ACG (S) 15A FRT FOG  10A ACG (S)
EB-5 10A ILLUMI & TAIL-RH  10A ILLUMI & TAIL-RH 
EB-6 10A TAIL-LH  10A TAIL-LH

EB-7 10A H/LIGHT-RH 10A H/LIGHT-RH
10A H/LIGHT-RH-LOW
 10A H/LIGHT RH-LOW
10A H/LIGHT-RH-LOW
EB-8 10A H/LIGHT-LH 10A H/LIGHT-LH
10A H/LIGHT-LH-LOW
 10A H/LIGHT LH-LOW
10A H/LIGHT-LH-LOW
EB-9 20A FUEL PUMP 10A O2 SENSOR 10A TRA ILER 
EB-10 10A O2 SENSOR 20A FUEL PUMP 10A AC G (S) 
EB-11
10A H/LIGHT-RH-HIGH
10A H/LIGHT RH-HIGH 
EB-12 10A H/LIGHT-LH-HIGH
10A H/LIGHT LH-HIGH 
EB-13 10A A/C 
 
EB-14 10A 4WD
10A 4WD  
EB-15 10A HORN   
EB-16 15A HAZARD 10A HAZARD  
SLOW BLOW FUSE
ENGINE MODEL
FUSE NO. C24SE 6VE1 4JA1-TC / 4JH1-TC4JA1-L
SBF-1 100A MAIN 
80A MAIN 
SBF-2  
20A COND, FAN 
SBF-3  
60A GLOW 20A COND, FAN
SBF-4 20A COND, FAN 
30A ECM 50A GLOW
SBF-5 40A IG 1   
SBF-6 
40A ABS-1  
SBF-7 
30A ABS-2  
SBF-8 30A BLOWER   
SBF-9 50A IG 2

ELECTRICAL-BODY AND CHASSIS 8A-255
TROUBLESHOOTING
SPEEDOMETER
1. Speedometer and odometer do not function

Checkpoint Trouble Cause Countermeasure


Replace the vehicle speed
sensor

Vehicle speed sensor
malfunction
NG
Repair an open circuit in the
circuit or a poor connection at
the connectors
Continuity between the vehicle
speed sensor and the meter,
or the fuse RHD: C-5 (15A)
and the ground

Open circuit or poor connector
contact


Replace the case baseboard
assy

Use a meter tester to check
the speedometer function

Speedometer malfunction
NG NG OK
OK
Check the vehicle speed
sensor output
(4 pulses/1 rotation)




2. Speedometer pointer fluctuates
(May be wide fluctuation)

Replace the vehicle speed
sensor, or repair an open
circuit in the circuit or a
connectors Vehicle speed sensor
malfunction, or open circuit or
poor connector contact
NG

Replace the case baseboard
assy

Use a meter tester to check
the speedometer function

Speedometer malfunction
NG OK
Check the speed sensor
output by using the
oscilloscope

8A-256 ELECTRICAL-BODY AND CHASSIS
3. Speedometer pointer jumps erratically

Checkpoint Trouble Cause Countermeasure

Replace the vehicle speed
sensor, or repair an open
circuit in the circuit or a poor
connection at the connectors Vehicle speed sensor
malfunction, or open circuit or
poor connector contact
NG

Replace the case baseboard
assy

Use meter tester to check the
speedometer function

Speedometer malfunction
NG OK
Check the vehicle speed
sensor output by using the
oscilloscope





Inspection of a waveform by oscilloscope
1. Connect a resistance of 1.3 to 5k ohm (1.4W or more) between the harness side connectors 30 B-24 and 9

B-24 of the meter.


2. Install a speedometer tester.
2. Turn on the starter SW.
3. Check the waveform at the time when the vehicle speed is at 60km/h.





4. Trip odometer does not reset


Replace the case baseboard
assy

Faulty reset mechanism
NG Check at other kilometer
figures given by meter tester
(Reset should be made to
zero kilometer)

ELECTRICAL-BODY AND CHASSIS 8A-257
TACHOMETER
1. Tachometer does not function when engine is running

Checkpoint Trouble Cause Countermeasure

Replace the tacho sensor, or
repair open circuit or
connector contact Tacho sensor malfunction, or
open circuit or poor connector
contact
NG

Replace the case baseboard
assy

Tachometer function

Tachometer malfunction
NG OK
Pulse between connector
B-24 and the ground when
engine is running (Should be
pulse present)



2. Meter pointer fluctuates
(May be wide fluctuation)


Replace the case baseboard
assy

Tachometer malfunction
NG
Use a meter tester to check
the tachometer function

8A-264 ELECTRICAL-BODY AND CHASSIS
Installation

Rubber Seal
Be absolutely sure that the fuel tank unit rubber seal is
correctly seated.



Connector
Be absolutely sure that the fuel tank unit connector is securely
connected.
This will prevent a poor contact and an open circuit.



VEHICLE SPEED SENSOR (INSTALLED
ON THE TRANSMISSION)
Removal
1. Disconnect the connector.
2. Remove the vehicle speed sensor body by rotating it.







Installation
To Install, follow the removal steps in the reverse order, noting
the following point.
Tighten the vehicle speed sensor to the specified torque.
Vehicle Speed Sensor Tightening Torque Nm (kgfm/lb.ft)
25  4.9 (2.5  0.5/18  3.6)