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Engine Electrical: Other Isuzu Axiom I

Body Electrical 3 illustrations ~935 words

SERVICE PRECAUTION

WARNINGTHIS VEHICLE HAS A SUPPLEMENTAL RESTRAINT SYSTEM (SRS). REFER TO AIR BAG RESTRAINT SYSTEMS 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 AIR BAG RESTRAINT SYSTEMS FOR SRS SERVICE INFORMATION. FAILURE TO FOLLOW WARNINGS COULD RESULT IN POSSIBLE AIR BAG DEPLOYMENT, PERSONAL INJURY, OR OTHERWISE UNNEEDED SRS SYSTEM REPAIRS.
CAUTIONAlways 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.

HYDROMETER CHECK

There is a built-in hydrometer (Charge test indicator (1)) at the top of the battery. It is designed to be used during diagnostic procedures.

Before trying to read the hydrometer, carefully clean the upper battery surface.

If your work area is poorly lit, additional light may be necessary to read the hydrometer.

  1. BLUE RING OR DOT VISIBLE (4) - Go to «VOLTAGE CHECK»(ref-194301-S10287932792005092700000) .
  2. BLUE RING OR DOT NOT VISIBLE (3) - Replace the battery.

Scheme 1

Scheme 1
Scheme 1

VOLTAGE CHECK

  1. Put voltmeter test leads to battery terminals. VOLTAGE IS 12.4V OR ABOVE - Go to «LOAD TEST»(ref-194301-S35746133572005092700000) . VOLTAGE IS UNDER 12.4V - Go to procedure (2) below.
  2. Determine fast charge amperage from specification. (See «MAIN DATA AND SPECIFICATIONS»(ref-194301-S39865216642005092700000) ). Fast charge battery for 30 minutes at amperage rate no higher than specified value. Take voltage and amperage readings after charge. VOLTAGE IS ABOVE 16V AT BELOW 1/3 OF AMPERAGE RATE - Replace battery. 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 «LOAD TEST»(ref-194301-S35746133572005092700000) . VOLTAGE IS BETWEEN 12V AND 16V - Continue charging at the same rate for an additional 3-1/2 hours. Then go to «LOAD TEST»(ref-194301-S35746133572005092700000) . VOLTAGE BELOW 12V - Replace the Battery.

Scheme 2

Scheme 2: LOAD TEST
Scheme 2: 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. VOLTAGE DOES NOT DROP BELOW THE MINIMUM LISTED IN THE TABLE - The battery is good and should be returned to service. VOLTAGE IS LESS THAN MINIMUM LISTED - Replace the battery.

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 With An Auxiliary (Booster) Battery

CAUTIONNever 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.
WARNINGFAILURE TO CAREFULLY FOLLOW THE JUMP STARTING PROCEDURE COULD RESULT IN THE FOLLOWING: Serous personal injury, particularly to your eyes. Property damage from a battery explosion, battery acid, or an electrical fire. 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.
  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.

Scheme 3

Scheme 3: BATTERY REMOVAL
Scheme 3: BATTERY REMOVAL
  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).

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