Battery Inspection - Mazda 2002 6 Workshop Manual

BATTERY INSPECTION

Battery
1. Inspect the battery in the following procedure.
Step Inspection
Measure open circuit
1
voltage of battery.
Quick charge for 30 min.
2
and recheck voltage.
Apply load current (see load
test chart) to battery using a
battery load tester and
3
record battery voltage after
15 s. Is voltage more than
specification?
Test load chart
Battery
46B24DLS
50D20L
75D26L
80D26L
Battery positive voltage with load
Approximate battery
temperature
21 °C {70 °F}
16 °C {61 °F}
10 °C {50 °F}
4 °C {39 °F}
–1 °C {30 °F}
–7 °C {19 °F}
–12 °C {10 °F}
–18 °C {0 °F}
Back-up Current
1. Verify that the engine switch is at OFF and that the key has been removed.
2. Disconnect the negative battery cable.
3. Measure the back-up current between the negative battery terminal and the negative battery cable.
• If the current exceeds the maximum, remove the fuses in the main fuse block and the fuse block one by
one while measuring the back-up current.
— Inspect and repair harnesses and connectors of the fuse at which the current decreases.
Back-up current
20 mA max.
Caution
• Operating electrical loads while measuring the back-up current can damage the circuit tester.
End Of Sie
G–4
CHARGING SYSTEM
Result Action
More than Go to
12.4 V Step 3.
Less than Go to
12.4 V next step.
More than Go to
12.4 V next step.
Less than Replace
12.4 V battery.
Battery is
Yes
okay.
Replace
No
battery.
Load (A)
135
150
195
195
Min. voltage (V)
9.6
9.5
9.4
9.3
9.1
8.9
8.7
8.5
A6E471018520W02