ISUZU TF SERIES 2004 Workshop Manual

ELECTRICAL-BODY AND CHASSIS 8A-193

DOOR SWITCH
Removal
1. Disconnect the battery ground cable.
2. Loosen the screw

1.
3. Remove the door switch.
4. Disconnect the door switch connector
3.





Installation
Follow the removal procedure in the reverse order to install the
spot light.
Pay close attention to the important points mentioned in the
following paragraphs.



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


SPOT LIGHT (MAP Light)
Removal
1. Grasp the spot light housing
1 with both hands.
Pull the housing straight down.
This will release the clip.
2. Disconnect the connector

2.
3. Turn socket
3 counterclockwise to remove it.

8A-194 ELECTRICAL-BODY AND CHASSIS



Installation
Follow the removal procedure in the reverse order to install the
spot light.
Pay close attention to the important points mentioned in the
following paragraphs.


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



Bulb
Be absolutely sure that the spot light bulb is correctly installed.
This will prevent a poor contact and an open circuit.




RTW48ASH000801
WARNING BUZZER (ALARMER
CONTROL UNIT)
Removal
1. Disconnect the battery ground cable.
2. Remove the glove box

Remove the screw.
3. Remove the Alarmer C/U assembly

Remove the screw.





Installation
Follow the removal procedure in the reverse order to install the
warning buzzer.
Pay close attention to the important points mentioned in the
following paragraphs.



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

ELECTRICAL-BODY AND CHASSIS 8A-195
INSPECTION AND REPAIR




R-9 R-10
R-1 R-6



DOOR SWITCH
Door Switch Connections

Connector
SW No.
R-9 R-10
R-1 R-6
position Terminal No.
1 Body Ground
PUSHED
RELEASED





WARNING BUZZER
1. Warning Buzzer Circuit


Warning function Operational conditions
Taillights left on The buzzer sounds when both the tail relay and the FRT door switch-drive
side are turned on. To stop the sound of the buzzer, turn on the starter
switch.




Harness side
B-45


2. Warning Buzzer Harness Side Connector Circuit
Disconnect the warning buzzer connector and check
continuity and voltage between the warning buzzer harness
side connector terminals.

Terminal
NO. Wire
color Connecting to Check itemConnecting
terminal Check condition Standard
3 G/R Tail relay 3-Ground Lighting SW “ON” Approx. 12V
6 Y Fuse CB-5 Voltage
6-Ground Starter SW “ON” Approx. 12V

Door SW Open Continuity
(FRT-LH)
Continuity Close No continuity
2 B Ground 2-Ground - Continuity
FRT door-LH 1-Ground 1
B/W

8A-196 ELECTRICAL-BODY AND CHASSIS
WINDSHIELD WIPER AND WASHER
PARTS LOCATION (RHD)








RTW48AXF0174 & RTW48AXF017501

ELECTRICAL-BODY AND CHASSIS 8A-197
PARTS LOCATION (LHD)







RTW48AXF017601 & RTW48AXF017701

8A-198 ELECTRICAL-BODY AND CHASSIS

CIRCUIT DIAGRAM WITHOUT INTERMITTENT RELAY (RHD)




RTW48AXF027901

ELECTRICAL-BODY AND CHASSIS 8A-199

CIRCUIT DIAGRAM WITH INTERMITTENT RELAY (RHD)




RTW48AXF028001

8A-200 ELECTRICAL-BODY AND CHASSIS

CIRCUIT DIAGRAM WITHOUT INTERMITTENT RELAY (LHD)




RTW48AXF004501

ELECTRICAL-BODY AND CHASSIS 8A-201

CIRCUIT DIAGRAM WITH INTERMITTENT RELAY (LHD)




RTW48AXF004401

8A-202 ELECTRICAL-BODY AND CHASSIS
TROUBLESHOOTING
WINDSHIELD WIPER
1. Wiper dose not operate at any switch position

Checkpoint Trouble Cause Countermeasure


Reinstall or replace the fuse
No. RHD: C-9 (20A)

Poor fuse contact or blown
NG

Repair open circuit or
connector contact

1. Wiper motor function when
connecting the motor
connector 3
C-4 to the
battery (+) terminal, and 1
C-4 to the (-) terminal
(Should the wiper motor
rotate at a low speed)
2. Wiper motor function when
connecting the motor
connector 2
C-4 to the
battery (+) terminal, 1
C-4
to the (-) terminal (Should
the wiper motor rotate at a
high speed)
Voltage between 3 B-59 and
the ground (Should be battery
voltage present)

Open circuit or poor connector
contact


Replace the wiper & washer
SW.

Continuity in the wiper &
washer SW.

SW. malfunction
NG NG OK
OK

RHD:
Fuse No. C-9 (20A)


Repair grounding point
C-2
contact


Grounding point
C-2


Poor grounding point contact
NG
OK OK

Replace the wiper motor

Wiper motor malfunction
NG

Repair open circuit or
connector contact

Continuity between 1
C-4
and
C-36


Open circuit or poor connector
contact
NG OK