2004 ISUZU TF SERIES Workshop Manual

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Page 1961 of 4264

ISUZU TF SERIES 2004 Workshop Manual ENGINE ELECTRICAL (6VE1 3.5L) 6D1-3
4. Load Test
1. Connect a voltmeter and a battery load tester
across the battery terminals.
2.
Apply 300 ampere load for 15 seconds to remove
surface charge

ENGINE ELECTRICAL (6VE1 3.5L) 6D1-3
4. Load Test
1. Connect a voltmeter and a battery load tester
across the battery terminals.
2.
Apply 300 ampere load for 15 seconds to remove
surface charge from the battery. Remove load.
3. Wait 15 seconds to let battery recover. Then apply
specified load from specifications (See Main Data
and Specifications in this section).
Read voltage after 15 seconds, then remove load.
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

F
C V
70 21 9.6
60 16 9.5
50 10 9.4
40 4 9.3
30 –1 9.1
20 –7 8.9
10 –12 8.7
0 –18 8.5
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 o
r
spew electrolyte from the vent holes.
3. In order to more easily view the hydrometer blue do
t
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 tha
t
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 booste
r
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. Serous personal injury, particularly to you
r
eyes.
2. Property damage from a battery explosion,
battery acid, or an electrical fire.
3. Damage to the electronic components of one o
r
both vehicles particularly.
Never expose the battery to an open flame or electrical
spark. Gas generated by the battery may catch fire o
r
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 you
r
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 othe
r
metal surface of the vehicle. This will protect against a
short circuit.
Always keep batteries out of reach of young children.

Page 1962 of 4264

ISUZU TF SERIES 2004 Workshop Manual 6D1-4 ENGINE ELECTRICAL (6VE1 3.5L)
Jump Starting Procedure
1. Set the vehicle parking brake.
If the vehicle is equipped with an automatic
transmission, place the selector level in the “PAR

6D1-4 ENGINE ELECTRICAL (6VE1 3.5L)
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.
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

P1010001

1. Remove negative cable.
2. Remove positive cable (2).
3. Remove retainer screw and rods.
4. Remove retainer.
5. Remove battery.
Battery Installation
1. Install battery.
2. Install retainer.
3. Install retainer screw and rods.
NOTE: Make sure that the rod is hooked on the body
side.
4. Install positive cable.
5. Install negative cable.

Page 1963 of 4264

ISUZU TF SERIES 2004 Workshop Manual ENGINE ELECTRICAL (6VE1 3.5L) 6D1-5
Main Data and Specifications
General Specifications

Model (JIS) 55D23L–MF
Voltage (V) 12

Page 1964 of 4264

ISUZU TF SERIES 2004 Workshop Manual 6D1-6 ENGINE ELECTRICAL (6VE1 3.5L)
MEMO

Page 1965 of 4264

ISUZU TF SERIES 2004 Workshop Manual IGNITION SYSTEM (6VE1 3.5L) 6D2-1
ENGINE
IGNITION SYSTEM (6VE1 3.5L)
CONTENTS

Service Precaution................................................. 6D2-1
General Description.....................

IGNITION SYSTEM (6VE1 3.5L) 6D2-1
ENGINE
IGNITION SYSTEM (6VE1 3.5L)
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
Inspection............................................................. 6D2-4
Replacement spark plugs................................... 6D2-4
Crankshaft Position Sensor................................... 6D2-5
Removal................................................................ 6D2-5
Installation............................................................. 6D2-5
Main Data and Specifications................................ 6D2-6

Service Precaution
WARNING: THIS VEHICLE HAS 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, REFE
R
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, o
r
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.

Page 1966 of 4264

ISUZU TF SERIES 2004 Workshop Manual 6D2-2 IGNITION SYSTEM (6VE1 3.5L)
General Description
Ignition is done by the electronic ignition (El) that directly
fires the spark plugs from ignition coils through spark
plug wires without using

Page 1967 of 4264

ISUZU TF SERIES 2004 Workshop Manual IGNITION SYSTEM (6VE1 3.5L) 6D2-3
Ignition Coil
Removal
1. Disconnect battery ground cable.
2. Ignition coil connector and ignition coil.
Disconnect three connector from ignition coil.
R

Page 1968 of 4264

ISUZU TF SERIES 2004 Workshop Manual 6D2-4 IGNITION SYSTEM (6VE1 3.5L)
Spark Plug
Inspection
Poor spark plug condition adversely affects engine
performance. Carefully inspect each spark plug
following the procedure outlined below.

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