Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 1514
8-156 ELECTRICAL-BODY AND CHASSIS
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-2 (10A)
Fuse No EB-2 (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
2
X-4
- ground or 5
X-4
- ground (Should be battery
voltage present)
OK
Repair open circuit or
reconnect the connector
Open circuit or poor connector
contact between fuse No. EB-
2 (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-4
- 12
C-42
1
X-4
- 1
C-20
(1
C-21
)
OK
Repair open circuit or
connector contact
Open circuit or poor connector
contact
NG
ELECTRICAL-BODY AND CHASSIS 8-157
2. One side of horn does not blow
Checkpoint
Trouble Cause
Countermeasure
Repair open circuit or
reconnect the connector
Open 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 assembly
Horn continuity between
connectors
Faulty horn assembly
NG
OK
3. Insufficient horn volume
Clfean and/or remove the
foreign material
Stain foreign material in the
horn
NG
Horn
Recharge or replace the
battery
Battery condition
Discharged battery
NG
OK
8-158 ELECTRICAL-BODY AND CHASSIS
REMOVAL AND INSTALLATION
REAR COMBINATION LIGHT
Stoplight
Removal
1. Open the rear gate.
2. Remove the screws of rear combination light.
3. Remove the rear combination light assembly.
4. Turn the bulb
2
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.
Bulb
Be absolutely sure that each bulb is correctly installed.
This will prevent a poor contact and an open circuit.
ELECTRICAL-BODY AND CHASSIS 8-159
FRONT TURN LIGHT
Removal
1. Remove the screws of the front turn light.
2. Pull out the light housing for front turn light from bumper.
3. Push the bulb in and turn it counterclockwise to remove it
from the light housing.
Installation
Follow the removal procedure in the reverse order to install the
front turn light.
Pay close attention to the important points mentioned in the
following paragraphs.
Bulb
Be absolutely sure that the front turn light bulb is correctly
installed.
This will prevent a poor contact and an open circuit.
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