2007 ISUZU KB P190 Workshop Repair Manual

Page 5097 of 6020

ISUZU KB P190 2007  Workshop Repair Manual ELECTRICAL-BODY AND CHASSIS  8A-159 
  
CIRCUIT DIAGRAM 4JA1T (L), 4JH1-TC, 4JJ1-TC, 4JK1-TC (CLEARANCE LIGHT,  
LICENSE PLATE LIGHT, TAIL LIGHT) 
  
   
RTW 78AXF026701 
 
BACK TO CHAPTER INDEX TO MO

Page 5098 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 8A-160  ELECTRICAL-BODY AND CHASSIS 
TROUBLE SHOOTING 
HEADLIGHT 
1.  Both the headlights (high and low beam) do not light  
 
Checkpoint  Trouble  Cause  Countermeasure 
 
  
Repair the wiring 
  
Po

Page 5099 of 6020

ISUZU KB P190 2007  Workshop Repair Manual ELECTRICAL-BODY AND CHASSIS  8A-161 
2.  High or low beam does not light on both headlights  
 
Checkpoint  Trouble  Cause  Countermeasure 
 
   
Repair or replace the 
combination switch 
  
Dimmer

Page 5100 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 8A-162  ELECTRICAL-BODY AND CHASSIS 
5.  Headlight does not go out  
 
Checkpoint  Trouble  Cause  Countermeasure 
 
   
Replace the lighting relay 
 Lighting relay continuity  
between connector 1

Page 5101 of 6020

ISUZU KB P190 2007  Workshop Repair Manual ELECTRICAL-BODY AND CHASSIS  8A-163 
7.  Passing light does not function when dimmer switch is operated  
 
Checkpoint  Trouble  Cause  Countermeasure 
 
   
Repair or replace the dimmer 
switch 
  
D

Page 5102 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 8A-164  ELECTRICAL-BODY AND CHASSIS 
TAIL LIGHT, LICENSE PLATE LIGHT, CLEARANCE LIGHT 
  
1.  All lights do not light  
 
Checkpoint  Trouble  Cause  Countermeasure 
 
 
  
Repair or replace the 
comb

Page 5103 of 6020

ISUZU KB P190 2007  Workshop Repair Manual ELECTRICAL-BODY AND CHASSIS  8A-165 
3.  License plate light does not light  
 
Checkpoint  Trouble  Cause  Countermeasure 
 
 
  
Repair open circuit or 
connector contact 
   
Continuity between

Page 5104 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 8A-166  ELECTRICAL-BODY AND CHASSIS 
LIGHTING SYSTEM 
   REMOVAL AND INSTALLATION 
 
  
3 2
1
 RTW 78ASH000101 
 
 FRONT COMBINATION LIGHT (A type) 
Removal 
1.  Remove the radiator grille 1.  
Refer