Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 1203
8-152 ELECTRICAL-BODY AND CHASSIS
3. High mounted stoplight does not light
Checkpoint
Trouble
Cause
Countermeasure
Repair or replace the high
mounted stoplight
Continuity between 1
L-5
-
1
L-6
High mounted stoplight
malfunction
NG
Repair an open circuit or
connector contact between
1
L-5
- 8
H-8
Voltage between 1
L-5
-
ground with brake pedal
depressed
(Should be battery voltage
present)
Open circuit or poor connector
contact
NG
OK
Repair grounding point
(
B-28
) contact
Grounding point (
B-28
)
Poor grounding point contact
NG
OK
ELECTRICAL-BODY AND CHASSIS 8-153
TURN SIGNAL LIGHT AND HAZARD WARNING LIGHT
1. Turn signal light does not light on both sides (RH and LH)
Checkpoint
Trouble
Cause
Countermeasure
Replace the flasher unit
Flasher unit malfunction
NG
Repair or replace the
combination switch
Turn signal switch continuity
between connector
3
C-42
- 4
C-42
and
3
C-42
- 5
C-42
when
turn signal switch operates
Short circuit between
connector 1
C-45
- 2
C-45
when turn signal switch
operates with starter switch
in “ON” position (Turn
signal light should be ON)
Poor switch point contact or
faulty switch
NG
OK
Reinstall or replace fuse No.
CB-11 (15A)
Fuse No. CB-11 (15A, Fuse
box)
Poor fuse contact or blown
fuse
NG
OK
OK
Repair open circuit or
connector contact
Continuity between
connector 3
C-45
-ground
(Should be continuity)
Open circuit or poor connector
contact
NG
8-154 ELECTRICAL-BODY AND CHASSIS
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
2
C-25
- 4
C-42
(FRT),
1
C-1
- 4
C-42
(SIDE)
1
T-6
- 4
C-42
(RR)
(RH)
Continuity between
2
C-22
- 5
C-42
(FRT),
1
C-1
- 5
C-42
(SIDE)
1
T-6
- 5
C-42
(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 2
B-16
-
ground (Should be battery
voltage present)
Hazard SW. continuity
Reinstall or replace the fuse
No. EB-1 (15A)
Fuse No. EB-1 (15A, 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-1 (15A) -
2
B-16
NG
4. Flashing rate too fast (One side)
Replace the bulb or repair
open circuit
Inspect bulb
Burned out bulb
NG
ELECTRICAL-BODY AND CHASSIS 8-155
BACKUP LIGHT
1. Backup light does not light on one side (RH or LH)
Checkpoint
Trouble
Cause
Countermeasure
Repair grounding point contact
Poor ground contact
NG
Grounding point
Replace the bulb or repair
connector contact
Backup light bulb continuity
Burned 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
T-1
(5
T-6
) - 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.
CB-11 (15A)
Fuse No. CB-11 (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
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