ENGINE ELECTRICAL6D1–1
ENGINE
ENGINE ELECTRICAL
CONTENTS
Service Precaution 6D1–1. . . . . . . . . . . . . . . . . . . . . .
Battery 6D1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Description 6D1–2. . . . . . . . . . . . . . . . . . . .
Diagnosis 6D1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Charging 6D1–3. . . . . . . . . . . . . . . . . . . . . . Jump Starting 6D1–3. . . . . . . . . . . . . . . . . . . . . . . . .
Battery Removal 6D1–4. . . . . . . . . . . . . . . . . . . . . .
Battery Installation 6D1–4. . . . . . . . . . . . . . . . . . . . .
Main Data and Specifications 6D1–5. . . . . . . . . . .
Service Precaution
WARNING: IF SO EQUIPPED WITH A
SUPPLEMENTAL RESTRAINT SYSTEM (SRS),
REFER TO THE SRS COMPONENT AND WIRING
LOCATION VIEW IN ORDER TO DETERMINE
WHETHER YOU ARE PERFORMING SERVICE ON OR
NEAR THE SRS COMPONENTS OR THE SRS
WIRING. WHEN YOU ARE PERFORMING SERVICE
ON OR NEAR THE SRS COMPONENTS OR THE SRS
WIRING, REFER TO THE SRS SERVICE
INFORMATION. FAILURE TO FOLLOW WARNINGS
COULD RESULT IN POSSIBLE AIR BAG
DEPLOYMENT, PERSONAL INJURY, OR
OTHERWISE UNNEEDED SRS SYSTEM REPAIRS.
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.
ENGINE ELECTRICAL6D1–3
a. VOLTAGE DOES NOT DROP BELOW THE
MINIMUM LISTED IN THE TABLE – The battery is
good and should be returned to service.
b. VOLTAGE IS LESS THAN MINIMUM LISTED –
Replace battery.
ESTIMATED TEMPERATURE
MINIMUM
VOLTAGE
FCV
70219.6
60169.5
50109.4
4049.3
30–19.1
20–78.9
10–128.7
0–188.5
The battery temperature must be estimated by feel
and by the temperature the battery has been
exposed to for the preceding few hours.
Battery Charging
Observe the following safety precautions when charging
the battery:
1. Never attempt to charge the battery when the fluid
level is below the lower level line on the side of the
battery. In this case, the battery must be replaced.
2. Pay close attention to the battery during charging
procedure.
Battery charging should be discontinued or the rate of
charge reduced if the battery feels hot to the touch.
Battery charging should be discontinued or the rate of
charge reduced if the battery begins to gas or spew
electrolyte from the vent holes.
3. In order to more easily view the hydrometer blue dot
or ring, it may be necessary to jiggle or tilt the battery.
4. Battery temperature can have a great effect on
battery charging capacity.
5. The sealed battery used on this vehicle may be either
quick charged or slow charged in the same manner as
other batteries.
Whichever method you decide to use, be sure that
you completely charge the battery. Never partially
charge the battery.
Jump Starting
Jump Starting with an Auxiliary (Booster)
Battery
CAUTION: Never push or tow the vehicle in an
attempt to start it. Serious damage to the emission
system as well as other vehicle parts will result.Treat both the discharged battery and the booster
battery with great care when using jumper cables.
Carefully follow the jump starting procedure, being
careful at all times to avoid sparking.
WARNING: FAILURE TO CAREFULLY FOLLOW THE
JUMP STARTING PROCEDURE COULD RESULT IN
THE FOLLOWING:
1. Serious personal injury, particularly to your eyes.
2. Property damage from a battery explosion, battery
acid, or an electrical fire.
3. Damage to the electronic components of one or both
vehicles particularly.
Never expose the battery to an open flame or electrical
spark. Gas generated by the battery may catch fire or
explode.
Remove any rings, watches, or other jewelry before
working around the battery. Protect your eyes by wearing
an approved set of goggles.
Never allow battery fluid to come in contact with your eyes
or skin.
Never allow battery fluid to come in contact with fabrics or
painted surfaces.
Battery fluid is a highly corrosive acid.
Should battery fluid come in contact with your eyes, skin,
fabric, or a painted surface, immediately and thoroughly
rinse the affected area with clean tap water.
Never allow metal tools or jumper cables to come in
contact with the positive battery terminal, or any other
metal surface of the vehicle. This will protect against a
short circuit.
Always keep batteries out of reach of young children.
Jump Starting Procedure
1. Set the vehicle parking brake.
If the vehicle is equipped with an automatic
transmission, place the selector level in the “PARK”
position.
If the vehicle is equipped with a manual transmission,
place the shift lever in the “NEUTRAL” position.
Turn “OFF” the ignition.
Turn “OFF” all lights and any other accessory
requiring electrical power.
2. Look at the built–in hydrometer.
If the indication area of the built–in hydrometer is
completely clear, do not try to jump start.
3. Attach the end of one jumper cable to the positive
terminal of the booster battery.
Attach the other end of the same cable to the positive
terminal of the discharged battery.
Do not allow the vehicles to touch each other. This will
cause a ground connection, effectively neutralizing
the charging procedure.
Be sure that the booster battery has a 12 volt rating.
6D1–4
ENGINE ELECTRICAL
4. Attach one end of the remaining cable to the negative
terminal of the booster battery.
Attach the other end of the same cable to a solid
engine ground (such as the air conditioning
compressor bracket or the generator mounting
bracket) of the vehicle with the discharged battery.
The ground connection must be at least 450 mm (18
in.) from the battery of the vehicle whose battery is
being charged.
WARNING: NEVER ATTACH THE END OF THE
JUMPER CABLE DIRECTLY TO THE NEGATIVE
TERMINAL OF THE DEAD BATTERY.
5. Start the engine of the vehicle with the good battery.
Make sure that all unnecessary electrical accessories
have been turned “OFF”.
6. Start the engine of the vehicle with the dead battery.
7. To remove the jumper cables, follow the above
directions in reverse order.
Be sure to first disconnect the negative cable from the
vehicle with the discharged battery.
Battery Removal
061RS002
1. Remove negative cable (1).
2. Remove positive cable (2).
3. Remove retainer screw and rods (3).
4. Remove retainer (4).
5. Remove battery (5).
Battery Installation
1. Install battery (5).
2. Install retainer (4).
3. Instal retainer screw and rods (3).
NOTE: Make sure that the rod is hooked on the body
side.
4. Install positive cable (2).
5. Install negative cable (1).
6D2–1
IGNITION SYSTEM
ENGINE
IGNITION SYSTEM
CONTENTS
Service Precaution 6D2–1. . . . . . . . . . . . . . . . . . . . . .
General Description 6D2–2. . . . . . . . . . . . . . . . . . . . .
Diagnosis 6D2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Coil 6D2–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 6D2–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 6D2–3. . . . . . . . . . . . . . . . . .
Installation 6D2–3. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spark Plug 6D2–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removal 6D2–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 6D2–4. . . . . . . . . . . . . . . . . .
Installation 6D2–4. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Crankshaft Angle Sensor 6D2–5. . . . . . . . . . . . . . . . .
Removal 6D2–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6D2–5. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Main Data and Specifications 6D2–6. . . . . . . . . . . . .
Service Precaution
WARNING: IF SO EQUIPPED WITH A
SUPPLEMENTAL RESTRAINT SYSTEM (SRS),
REFER TO THE SRS COMPONENT AND WIRING
LOCATION VIEW IN ORDER TO DETERMINE
WHETHER YOU ARE PERFORMING SERVICE ON OR
NEAR THE SRS COMPONENTS OR THE SRS
WIRING. WHEN YOU ARE PERFORMING SERVICE
ON OR NEAR THE SRS COMPONENTS OR THE SRS
WIRING, REFER TO THE SRS SERVICE
INFORMATION. FAILURE TO FOLLOW WARNINGS
COULD RESULT IN POSSIBLE AIR BAG
DEPLOYMENT, PERSONAL INJURY, OR
OTHERWISE UNNEEDED SRS SYSTEM REPAIRS.
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.
6D3–1 STARTING AND CHARGING SYSTEM
ENGINE
STARTING AND CHARGING SYSTEM
CONTENTS
Service Precaution 6D3–1. . . . . . . . . . . . . . . . . . . . . .
Starting System 6D3–2. . . . . . . . . . . . . . . . . . . . . . . . .
General Description 6D3–2. . . . . . . . . . . . . . . . . . . . .
Diagnosis 6D3–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starter 6D3–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 6D3–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6D3–5. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disassembled View 6D3–6. . . . . . . . . . . . . . . . . . . .
Disassembly 6D3–7. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 6D3–9. . . . . . . . . . . . . . . . . .
Reassembly 6D3–13. . . . . . . . . . . . . . . . . . . . . . . . . .
Main Data and Specifications 6D3–15. . . . . . . . . . .
Charging System 6D3–18. . . . . . . . . . . . . . . . . . . . . . . . General Description 6D3–18. . . . . . . . . . . . . . . . . . . . .
General On–Vehicle Inspection 6D3–18. . . . . . . . . . .
Generator 6D3–19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 6D3–19. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection 6D3–19. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6D3–19. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disassembled View 6D3–20. . . . . . . . . . . . . . . . . . . .
Disassembly 6D3–21. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 6D3–23. . . . . . . . . . . . . . . . . .
Reassembly 6D3–24. . . . . . . . . . . . . . . . . . . . . . . . . .
Bench Test 6D3–25. . . . . . . . . . . . . . . . . . . . . . . . . . .
Main Data and Specifications 6D3–26. . . . . . . . . . .
Service Precaution
WARNING: IF SO EQUIPPED WITH A
SUPPLEMENTAL RESTRAINT SYSTEM (SRS),
REFER TO THE SRS COMPONENT AND WIRING
LOCATION VIEW IN ORDER TO DETERMINE
WHETHER YOU ARE PERFORMING SERVICE ON OR
NEAR THE SRS COMPONENTS OR THE SRS
WIRING. WHEN YOU ARE PERFORMING SERVICE
ON OR NEAR THE SRS COMPONENTS OR THE SRS
WIRING, REFER TO THE SRS SERVICE
INFORMATION. FAILURE TO FOLLOW WARNINGS
COULD RESULT IN POSSIBLE AIR BAG
DEPLOYMENT, PERSONAL INJURY, OR
OTHERWISE UNNEEDED SRS SYSTEM REPAIRS.
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.
6D3–18STARTING AND CHARGING SYSTEM
Charging System
General Description
The IC integral regulator charging system and its main
components are connected as shown in the illustration.
The regulator is a solid state type and it is mounted along
with the brush holder assembly inside the generator
installed on the rear end cover.
The generator does not require particular maintenance
such as voltage adjustment.
The rectifier connected to the stator coil has eight diodes
to transform AC voltage into DC voltage.
This DC voltage is connected to the output terminal of
generator.
General On–Vehicle Inspection
The operating condition of charging system is indicated
by the charge warning lamp. The warning lamp comes on
when the starter switch is turned to “ON” position. The
charging system operates normally if the lamp goes off
when the engine starts.
If the warning lamp shows abnormality or if undercharged
or overcharged battery condition is suspected, perform
diagnosis by checking the charging system as follows:
1. Check visually the belt and wiring connector.
2. With the engine stopped, turn the stator switch to
“ON” position and observe the warning lamp.
If lamp does not come on:
Disconnect wiring connector from generator, and
ground the terminal “L” on connector side.
If lamp comes on:
Repair or replace the generator.
F06RW009
6D3–25 STARTING AND CHARGING SYSTEM
1. Using a press with a socket wrench attached,
reassemble rotor and rear end cover assembly in the
front cover.
066RS022
2. Install pulley on the rotor.
Secure the pulley directly in the vise between two
copper plates, and tighten nut to the specified torque.
Torque: 111 Nꞏm (11.3 Kgꞏm/82 lb ft)
066RS010
Bench Test
Conduct a bench test of the generator.
066RS023
Preparation
Remove generator from the vehicle (see “Generator
removal”).
1. Secure generator to the bench test equipment and
connect wires.
Terminal “IG” for energization
Terminal “L” for neutral (warning lamp)
Terminal “B” for output
2. Conduct the generator characteristic test.
Characteristics of generator are shown in illustration.
Repair or replace the generator if its outputs are
abnormal.
B06RW001
6E–298
ENGINE DRIVEABILITY AND EMISSIONS
4. Remove the MAP sensor from the mounting bracket.
055RW002
Installation Procedure
1. Install the MAP sensor in the mounting bracket.
055RW002
2. Install the mounting bracket retaining bolt on the
common chamber.
3. Connect the MAP electrical connector.
055RW005
4. Connect the negative battery cable.
Malfunction Indicator Lamp
(MIL)
Removal and Installation Procedure
Refer to Warning light bulb, indicator light valve,
illumination light bulb, A/T indicator light bulb in Meter and
Gauge.
Powertrain Control Module
(PCM)
Service Precaution
NOTE: To prevent possible electrostatic discharge
damage to the PCM, do not touch the connector pins or
soldered components on the circuit board.
Electrostatic Discharge (ESD)
Damage
Electronic components used in the control systems are
often designed to carry very low voltage. Electronic
components are susceptible to damage caused by
electrostatic discharge. Less than 100 volts of static
electricity can cause damage to some electronic
components. By comparison, it takes as much as 4,000
volts for a person to even feel the zap of a static
discharge.
There are several ways for a person to become statically
charged. The most common methods of charging are by
friction and by induction. An example of charging by
friction is a person sliding across a car seat.
Charging by induction occurs when a person with well
insulated shoes stands near a highly charged object and
momentarily touches ground. Charges of the same
polarity are drained off leaving the person highly charged
with the opposite polarity. Static charges can cause