Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual - part 1374

ELECTRICAL-BODY AND CHASSIS  8-61

8-62  ELECTRICAL-BODY AND CHASSIS

CIRCUIT DIAGRAM (RHD)

ELECTRICAL-BODY AND CHASSIS  8-63

8-64  ELECTRICAL-BODY AND CHASSIS

TROUBLESHOOTING

HEADLIGHT

1. Both the headlights (high and low beam) do not light

Checkpoint

Trouble Cause

Countermeasure

Repair the wiring

Poor ground point contact

NG

Repair open circuit or

connector contact

Repair open circuit

Repair or replace the

combination switch

Voltage between 1 

C-42

 -

ground

Open circuit between lighting

relay and lighting switch

Open circuit between battery

positive terminal and lighting

relay

Combination switch continuity

Poor switch contact or sw

faulty

Voltage between

5 

X-1

 - ground and

2 

X-1

 - ground

Reinstall or replace the

lighting relay

Lighting relay

Poor relay contact or relay

faulty

NG

NG

NG

NG

OK

OK

OK

OK

Ground point contact (C-2)

Repair open circuit

Wiring continuity between

7 

C-42

 - 

C-2

 and

16 

C-42

 - 

C-2

Open circuit

NG

OK