reverse switch ISUZU TF SERIES 2004 Workshop Manual

ELECTRICAL-BODY AND CHASSIS 8A-5
NOTES FOR WORKING ON ELECTRICAL ITEMS
Battery

BATTERY CABLE
Disconnecting the Battery Cable
1. All switches should be "OFF" position.
2. Disconnect the battery ground cable.
3. Disconnect the battery positive cable.
CAUTION:
It is important that the battery ground cable be
disconnected first.
Disconnecting the battery positive cable first can result in
a short circuit.














Connecting the Battery Cable
Follow the disconnecting procedure in the reverse order to
connect the battery cables.
CAUTION:
Clean the battery terminal and apply light coat of grease to
prevent terminal corrosion.




CONNECTOR HANDLING
Disconnecting the Connectors
Some connectors have a tang lock to hold the connectors
together during vehicle operation.
Some tang locks are released by pulling them towards you
1.
Other tang locks are released by pressing them forward
2.
Determine which type of tang lock is on the connector being
handled.



Firmly grasp both sides (male and female) of the connector.
Release the tang lock and carefully pull the two halves of the
connector apart.
Never pull on the wires to separate the connectors.
This will result in wire breakage.

8A-88 ELECTRICAL-BODY AND CHASSIS
REMOVAL AND INSTALLATION

This illustration is based on RHD model
STARTER SWITCH
Removal
1. Steering Lock Assembly

Refer to Section 3B" STEERING COLUMN" for steering
lock assembly removal steps.
2. Starter Switch




Installation
Follow the removal procedure in the reverse order to install the
starter switch.


INSPECTION AND REPAIR


STARTER SWITCH
Switch Connections
Terminal No.

Starter
switch key
position B-62
2
(B2)B-62
4
(ACC)B-62
1
(IG2) B-63
1
(ST) B-63
3
(B1)B-62
3
(IG1)
Removed

OFF
ACC Inserted
ON
START
LOCK

825R300046

Starter relay
Check continuity between the relay terminals.
1 - 4............................. No continuity
(When battery voltage is applied between 2 and 3)
1 - 4............................. Continuity

ELECTRICAL-BODY AND CHASSIS 8A-129
Installation
Follow the removal procedure in the reverse order to install the
headlight.
Pay close attention to the important points mentioned in the
following paragraphs.


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

This illustration is based on RHD model

LIGHTING SWITCH
Removal
1. Disconnect the battery ground cable.
2. Remove the steering wheel
1.
Refer to the “STEERING” Section of this manual.
3. Remove the Instrument panel lower cover
2.
4. Remove the steering column cover
3.


This illustration is based on RHD model
5. Disconnect the connector.
6. Remove the lighting switch from the steering shaft.





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



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


Wire Harness
Do not pinch the wire harnesses between the cluster and the
meter hood during the cluster installation procedure.
Wire damage will result.

ELECTRICAL-BODY AND CHASSIS 8A-131


LICENSE PLATE LIGHT
Removal
1. Remove the lens cover 1 and the connector 2.
2. Pull the bulb
3 to remove it.



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



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



HEADLIGHT BEAM SWITCH
(COMBINATION SWITCH)
Removal
1. Disconnect the battery ground cable.
2. Remove the screws on the lower part of the steering wheel.
3. Remove the horn pad.
4. Remove the wiring connector.
5. Remove the steering wheel fixing nuts.
6. Remove the steering wheel.
Refer to the "STEERING" Section of this manual.
7. Remove the Instrument panel lower cover.
8. Remove the steering column cover.
9. Disconnect the connector.
10. Remove the headlight beam switch (lever) from the steering
shaft (combination switch).


Installation
Follow the removal procedure in the reverse order to install the
headlight beam switch (lever).
Pay close attention to the important points mentioned in the
following paragraphs.



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

ELECTRICAL-BODY AND CHASSIS 8A-135


LIGHTING RELAY, TAIL RELAY
Check continuity between the relay terminals.
2 - 1............................. No continuity
(When battery voltage is applied between 3 and 4)
2 - 1............................. Continuity



GLOVE BOX ILLUMINATION
Removal
1. Remove the bulb cover 1.
2. Remove the bulb
2.


Installation
To install, follow the removal steps in the reverse order.


POWER/3rd START SW
Removal
 Refer to the “Front consol” Section 10 of this manual.
1. Disconnect the battery ground cable.
2. Remove the power/3rd start switch.
3. Remove the bulb.

Installation
To install, follow the removal steps in the reverse order.


A/T LEVER LIGHT BULB
Removal
 Refer to the “Front consol” Section 10 of this manual.
1. Remove the A/T lever cover.
2. Remove the light bulb
1.

Installation
To install, follow the removal steps in the reverse order.

8A-142 ELECTRICAL-BODY AND CHASSIS

FRONT FOG LIGHT
Removal
1. Remove the radiator grille.
2. Remove the front bumper
3. Disconnect the fog light connector.
4. Remove the fog light.



5. Remove the bulb from the socket.
 Remove the socket by turning it counterclockwise.


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



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


FRONT FOG LIGHT ADJUSTMENT
Vertical Adjustment
Turn the adjusting screw (1) with a screwdriver to adjust the
aim of the fog light vertically.



RTU4Z0SH000601
FRONT FOG & REAR FOG SWITCH

ELECTRICAL-BODY AND CHASSIS 8A-143

RTW48ASH000401

Inspection
Check to see if there is any continuity between the terminals of
the front fog light switch.
Replace the switch when the result of inspection is found
abnormal.

Removal
Preparation:
Disconnect the battery ground cable.
1. Ventilation grille
2. Harness connector
3. Front fog light & Rear fog light switch
To remove the switch, push the lock from the back side of
the cluster assembly.
4. Remove the bulb.




RTW48ASH000301
Installation
To install, follow the removal steps in the reverse noting the
following point.
1. Push in the switch with your fingers until it locks securely.

8A-148 ELECTRICAL-BODY AND CHASSIS




RTW48ASH000701

REAR FOG LIGHT
Removal
1. Remove the screws 1.
2. Remove the lens cover
2.
3. Rear fog push turn the bulb
3 counterclockwise to
disconnect it from the light housing.



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



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




RTU4Z0SH000601
FRONT FOG & RR FOG SWITCH



RTW48ASH000401

Inspection
Check to see if there is any continuity between the terminals of
the leveling switch.
Replace the switch when the result of inspection is found
abnormal.

Removal
Preparation:
Disconnect the battery ground cable.
1. Ventilation grille
2. Harness connector
3. Front fog light & Rear fog light switch
To remove the switch, push the lock from the back side of
the cluster assembly.
4. Remove the bulb.

ELECTRICAL-BODY AND CHASSIS 8A-153

HEADLIGHT LEVELING SWITCH
Incorrect beam angle due to load change can be corrected.
A four position switch, 0-3, can alter the beam angle through
1.7 degrees on the long wheel base model and 2.17 degrees
on the short wheel base model.
825R300049

Inspection
Check to see if there is any continuity between the terminals of
the leveling switch.
Replace the switch when the result of inspection is found
abnormal.



Removal
Preparation:
Disconnect the battery ground cable.
1. Ventilation grille
2. Harness connector
3. Headlight leveling switch
To remove the switch, push the lock from the back side of
the cluster assembly.



Installation
To install, follow the removal steps in the reverse noting the
following point.
1. Push in the switch with your fingers until it locks securely.

8A-170 ELECTRICAL-BODY AND CHASSIS
BACKUP LIGHT
1. Backup light does not light on one side (RH or LH)

Checkpoint Trouble Cause Countermeasure

Repair grounding point contactPoor ground contact NGGrounding point
Replace the bulb or repair
connector contactBackup light bulb continuityBurned out bulb or poor
connector contact NG
OK



2. Backup light does not light on both sides



Repair or replace the switch

Poor switch point contact of
faulty switch
NG
Voltage between 5 F-6
(5
F-5 ) - ground with
starter switch ON and shift
lever into reverse position
(Should be battery voltage
present)

Back up light switch (mode
switch) continuity


Reinstall or replace fuse No.
C-4 (15A)

Fuse No. C-4 (15A, Fuse box)

Poor fuse contact or blown
fuse
NG
OK OK

Repair open circuit or
connector contact

Open circuit or poor connector
contact
NG