Pickup 2WD L4-2.3L (4ZD1) (1988)
Battery: Technical Service Bulletins
Battery - Testing and Charging Procedure
BULLETIN NUMBER: SB88-04-003
ISSUE DATE: April 19, 1988
GROUP: ELECTRICAL
BATTERY TEST AND CHARGE
VEHICLES AFFECTED
All Isuzu models.
SERVICE INFORMATION
Many batteries that are replaced because of poor performance are later found (during warranty inspection) to have no defects. This Service Bulletin
describes proper battery testing and charging procedures which must be completed before a battery is replaced. All technical readings must be recorded
on the warranty repair order.
SERVICE PROCEDURE
WARNING
Keep battery away from open flame, as hydrogen gas generated by battery is highly flammable. Wear safety glasses when working near batteries. In case
of skin contact with battery acid, flush affected area immediately with water.
CAUTION
Charge battery only when battery temperature is below 60 degrees C (140 degrees F). If battery temperature rises above this temperature, stop charging
procedure.
1.
Put voltmeter test leads to battery terminals.
a.
If battery voltage is 12.4 V or above, load test battery as described in Step 3 of this procedure.
b.
If battery voltage is under 12.4 V, fast charge battery as described in Step 2 before performing load test.