Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual - part 1513

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