battery ISUZU TF SERIES 2004 Repair Manual

ELECTRICAL-BODY AND CHASSIS 8A-169
2. Turn signal light does not light on one side (RH or LH)

Checkpoint Trouble Cause Countermeasure



Repair open circuit or
connector contact

Open circuit or poor connector
contact
NG
(LH)
Continuity between
3
C-25 - 6 B-60 (FRT),
1
C-35 - 6 B-60 (SIDE)
1
F-6 - 6 B-60 (RR)
(RH)
Continuity between
3
C-18 - 7 B-60 (FRT),
1
C-1 - 7 B-60 (SIDE)
1
F-5 - 7 B-60 (RR)

Repair or replace the
combination switch

Turn signal switch continuity

Poor switch point contact or
faulty switch
NG
OK OK

Repair open circuit or
connector contact

Open circuit or poor connector
contact
NG



3. Hazard warning light does not light



Repair or replace the hazard
SW.

Hazard SW. malfunction
NG
Voltage between 5 B-16 -
ground (Should be battery
voltage present)

Hazard SW. continuity


Reinstall or replace the fuse
No. EB-16 (10A)

Fuse No. EB-16 (10A, Relay
and fuse box)

Poor fuse contact or blown
fuse
NG
OK OK

Repair open circuit or
connector contact
Open circuit or poor
connector contact between
fuse No. EB-16 (10A) -
5
B-16 NG



4. Flashing rate too fast (One side)

Replace the bulb or repair
open circuitInspect bulbBurned out bulb NG

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

ELECTRICAL-BODY AND CHASSIS 8A-171
HORN
1. Both sides of horn do not sound

Checkpoint Trouble Cause Countermeasure



Repair the grounding point

Poor ground contact
NG

Horn relay


Grounding point


Reinstall or replace fuse No.
EB-15 (10A)

Fuse No EB-15 (10A, Relay
and fuse box)

Poor fuse contact or blown
fuse
NG
OK OK

Reinstall or replace the horn
relay

Poor relay contact or faulty
horn relay
NG
Voltage between connector
3
X-3 - ground or 1 X-3
- ground (Should be battery
voltage present) OK

Repair open circuit or
reconnect the connector
Open circuit or poor connector
contact between fuse No. EB-
15 (10A) and horn relay
NG

Remove steering pad and
steering wheel
OK

Horn switch continuity
OK
Repair or replace the horn
switch

Poor switch point contact or
faulty switch
NG
Continuity between
4
X-3 - 10 B-60
2
X-3 - 1 C-20 (1 C-21) OK

Repair open circuit or
connector contact

Open circuit or poor connector
contact
NG

8A-172 ELECTRICAL-BODY AND CHASSIS
2. One side of horn does not blow

Checkpoint Trouble Cause Countermeasure

Repair open circuit or
reconnect the connectorOpen circuit or poor connector
contact NG
Voltage between 1 C-20
(1 C-21) - ground with
horn switch depressed
(Should be battery voltage
present)
Replace the horn assemblyHorn continuity between
connectorsFaulty horn assembly NG
OK



3. Insufficient horn volume

Clfean and/or remove the
foreign materialStain foreign material in the
horn NGHorn
Recharge or replace the
batteryBattery conditionDischarged battery NG
OK

8A-176 ELECTRICAL-BODY AND CHASSIS
This illustration is based on RHD model
TURN SIGNAL 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 instruments 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 turn signal switch from the steering shaft.




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



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

ELECTRICAL-BODY AND CHASSIS 8A-177

REAR COMBINATION LIGHT
Back Up Light
Removal
1. Open the rear gate.
2. Remove the screws.
3. Remove the rear combination light assembly.

4. Turn the bulb
3 counterclockwise to remove it.



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



Bulbs
Be absolutely sure that each bulb is correctly installed.
This will prevent a poor contact and an open circuit.

This illustration is based on RHD model

HAZARD WARNING FLASHER SWITCH
Removal
1. Disconnect the battery ground cable.
2. Instrument Panel Cluster Assembly

Refer to Section 10 “BODY” for instrument panel cluste
r
assembly removal steps.
3. Hazard Warning Switch

Disconnect the switch connector.

To remove the switch, push the lock from the back side
of the cluster assembly.


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



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

8A-178 ELECTRICAL-BODY AND CHASSIS
BACK UP LIGHT SWITCH
Removal
1. Disconnect the battery ground cable.
2. Disconnect the connector
1.
3. Remove the back up light switch from the transmission
2.



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



Back up Light Switch Threads
Apply liquid gasket to the threaded portion and install the back
up light switch.



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

HORN
Removal
1. Remove the radiator grille.
Refer to the “HEADLIGHT” removal procedure.
2. Loosen the horn bolt.
3. Disconnect the horn connector.


Installation
Follow the removal procedure in the reverse order to install the
horn.
Pay close attention to the important point mentioned in the
following paragraphs.



Connector
Be absolutely sure the horn connector is securely connected.
This will prevent a poor contact and open circuit.

ELECTRICAL-BODY AND CHASSIS 8A-179

HORN SWITCH
Removal
1. Disconnect the battery ground cable.
2. Disable the SRS (Refer to “Disabling the SRS”in this
section).
3. Check the both side hole of the steering cover.


4. Check the position of the pins in a hole. Push the pin in the
direction of an arrow.


5. Push the four pins at 56 mm bar.

6. Cancel the lock four pins.
7. Disconnect the SRS air bag connector and horn lead
connector located behind the air bag assembly and remove
the air bag assembly.

Installation
1. Connect the SRS bag connector and horn lead connector.
2.
Align the each snap stud of driver air bag to the hole of
steering wheel.

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.