Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 1708

ENGINE ELECTRICAL 6D1-1

SECTION 6D1

ENGINE ELECTRICAL

CONTENTS

PAGE

Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6D1- 2

General Description. . . . . . . . . . . . . . . . . . . . . . . . ... 6D1- 2

Service Precaution . . . . . . . . . . . . . . . . . . . . . . . . . 6D1- 2

Diagnosis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6D1- 3

Battery Charging. . . . . . . . . . . . . . . . . . . . . . . . . . 6D1- 4

Jump Starting. . . . . . . . . . . . . . . . . . . . . . . . . . . . 6D1- 4

Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 6D1- 6

Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 6D1- 6

Main Data and Specifications . . . . . . . . . . . . . . . . . . . . ... 6D1- 6

6D1-2 ENGINE ELECTRICAL

Battery

General Description

There are six battery fluid caps on top of the battery.
These are covered by a paper label.
The battery is completely sealed except for the six small vent
holes on the side. These vent holes permit the escape of small
amounts of gas generated by the battery.
This type of battery has the following advantages over
conventional batteries:
1. There is no need to add water during the entire service life

of the battery.

2. The battery protects itself against overcharging.

The battery will refuse to accept an extensive charge.

(A conventional battery will accept an excessive charge,

resulting in gassing and loss of battery fluid.)

3. The battery is much less vulnerable to self discharge than a

conventional type battery.

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.

ENGINE ELECTRICAL 6D1-3

Diagnosis

1. Visual Inspection

Inspect the battery for obvious physical damage, such as a
cracked or broken case, which would permit electrolyte loss.
Replace the battery if obvious physical damage is discovered
during inspection.
Check for any other physical damage and correct it as
necessary.

2. Hydrometer Check

3. Fluid Level Check

The fluid level should be between the upper level line (2) and
lower lever line (3) on side of battery.

a. CORRECT FLUID LEVEL - Charge the battery.

b. BELOW LOWER LEVEL - Replace battery.

4. Voltage Check

1. Put voltmeter test leads to battery terminals.

a. VOLTAGE IS 12.4V OR ABOVE - Go to Step 5.

b. VOLTAGE IS UNDER 12.4V - Go to procedure (2) below.

2. Determine fast charge amperage from specification.

(See Main Data and Specifications in this section).

Fast charge battery for 30 minutes at amperage rate no

higher than specified value.

Take voltage and amperage readings after charge.

a. VOLTAGE IS ABOVE 16V AT BELOW 1/3 OF

AMPERAGE RATE - Replace battery.

b. VOLTAGE IS ABOVE 16V AT ABOVE 1/3 OF

AMPERAGE RATE - Drop charging voltage to 15V and

charge for 10 - 15 hours. Then go to Step 5.

c. VOLTAGE IS BETWEEN 12V AND 16V - Continue

charging at the same rate for an additional 3-1/2 hours.

Then go to Step 5.

d. VOLTAGE BELOW 12V - Replace Battery.

6D1-4 ENGINE ELECTRICAL

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. Serous 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.