Isuzu KB P190. Manual - part 537

IGNITION SYSTEM  6D2-5 

Main Data and Specifications 

General Specifications 

Ignition System 

 

Ignition Form 

Electronic Ignition System (El system) with Crankshaft angle Sensor 

Spark Plug 

 

Type 

No. of Coils and Type 

Coil Location 

Torque 

Electronic Spark Control 

2 Solid State 

Engine-mounted 

20 N

⋅m (2.0 kgf⋅m) 

 

SECTION 6D3 

STARTING AND CHARGING SYSTEM 

TABLE OF CONTENTS 

PAGE 

Starting System ..............................................................................................................  6D3- 2 

General Description .......................................................................................................  6D3- 2 

Service Precaution .........................................................................................................  6D3- 2 

Diagnosis ........................................................................................................................  6D3- 2 

Starter..............................................................................................................................  6D3- 3 

Removal ......................................................................................................................  6D3- 3 

Installation..................................................................................................................  6D3- 3 

Disassembled View ...................................................................................................  6D3- 4 

Inspection and Repair ...............................................................................................  6D3- 5 

Characteristic Test ....................................................................................................  6D3- 6 

Charging System ............................................................................................................  6D3- 7 

General Description .......................................................................................................  6D3- 7 

General On-Vehicle Inspection .....................................................................................  6D3- 8 

Generator ........................................................................................................................  6D3- 8 

Removal ......................................................................................................................  6D3- 8 

Inspection...................................................................................................................  6D3- 8 

Installation..................................................................................................................  6D3- 9 

Diagnosis ........................................................................................................................  6D3-12 

Disassembly...............................................................................................................  6D3-13 

Clean ...........................................................................................................................  6D3-14 

Inspection...................................................................................................................  6D3-14 

Reassembly................................................................................................................  6D3-18 

Inspection...................................................................................................................  6D3-19 

Technical Data ................................................................................................................  6D3-21 

 

STARTING AND CHARGING SYSTEM  6D3-1 

6D3-2  STARTING AND CHARGING SYSTEM 

 

 

 

Starting System 

General Description 

Cranking Circuit 

The cranking system consists of a battery, starter, starter 
switch, starter relay, etc. These main components are 
connected. 

Starter 

The cranking system employs a magnetic type reduction 
starter in which the motor shaft is also used as a pinion shaft. 
When the starter switch is turned on, the contacts of magnetic 
switch are closed, and the armature rotates. At the same time, 
the plunger is attracted, and the pinion is pushed forward by 
the shift lever to mesh with the ring gear. 
Then, the ring gear runs to start the engine. When the engine 
starts and the starter switch is turned off, the plunger returns, 
the pinion is disengaged from the ring gear, and the armature 
stops rotation. When the engine speed is higher than the 
pinion, the pinion idles, so that the armature is not driven. 
 

 

 

 
 

Service Precaution 

CAUTION:  
Always use the correct fastener in the proper location. 
When you replace a fastener, use ONLY the exact part 
number for that application. ISUZU will call out those 
fasteners that require a replacement after removal. ISUZU 
will also call out the fasteners that require thread lockers 
or thread sealant. UNLESS OTHERWISE SPECIFIED, do 
not use supplemental coatings (Paints, greases, or other 
corrosion inhibitors) on threaded fasteners or fastener 
joint interfaces. Generally, such coatings adversely affect 
the fastener torque and the joint clamping force, and may 
damage the fastener. When you install fasteners, use the 
correct tightening sequence and specifications. Following 
these instructions can help you avoid damage to parts 
and systems. 
 

Diagnosis 

Condition Possible 

cause Correction 

Starter does not run 

Charging failure 

Repair charging system 

 

Battery Failure 

Replace Battery 

 

Terminal connection failure 

Repair or replace terminal connector 

and/or wiring harness 

 

Starter switch failure 

Repair or replace starter switch 

 

Starter failure 

Repair or replace starter 

 

STARTING AND CHARGING SYSTEM  6D3-3 

 

 

 

Starter 

Removal 

1.  Remove the battery ground cable. 

2.  Remove harness connectors (1) and (2). 

 

 

 

3.  Remove bolts from starter. 

 

 

Installation 

1.  Install starter assembly. 

2.  Install mounting bolts and tighten bolts to specified torque.

 

Torque: 51 N

⋅⋅⋅⋅m (5.2 kgf⋅⋅⋅⋅m) 

3. Connect harness. 

4.  Reconnect the battery ground cable.