BATTERY INSPECTION [ZY]

id0117008006b0

Warning

• Since battery acid is toxic, be careful when handling the battery.

• Since battery acid is highly corrosive, be careful not to allow it to contact clothing or the vehicle.

• In case battery acid contacts skin, eyes, or clothing, flush it immediately with running water. Especially if the acid gets in the eyes, flush with water for more than 15 min and get prompt medical attention.

Electrolyte gravity

1. Measure the electrolyte gravity using a hydrometer.

• If it is less than the specification, recharge the battery. (See BATTERY RECHARGING [ZY].)

Battery electrolyte gravity

1.22-1.29 [20 °C {68 °F}]

Battery voltage

1. Inspect with the following procedure.


Step	Inspection		Action
1	Measure the open circuit voltage of battery.	12.4 V or more	Go to Step 3.
1	Measure the open circuit voltage of battery.	Less than 12.4 V	Go to next step.
2	Quick-charge for 30 min and recheck the voltage.	12.4 V or more	Go to next step.
2	Quick-charge for 30 min and recheck the voltage.	Less than 12.4 V	Replace battery.
3	Apply a load current (see battery load test current) to the battery using a battery load tester and record the battery voltage after 15 s. Is voltage more than the specification? (See battery positive voltage with load.)	Yes	Normal
3		No	Replace battery.

Battery load test current

55D23L (48): 180 A

Battery positive voltage with load

Approximate battery temperature

Minimum voltage (V)

4

9.3

10

9.4

16

9.5

21

9.6

Approximate battery temperature	Minimum voltage (V)
4	9.3
10	9.4
16	9.5
21	9.6

Back-up current

1. Verify that the ignition switch is off (key has been removed) and that all doors are closed.

2. Disconnect the negative battery cable.

3. Connect the tester between the negative battery terminal and negative battery cable, leave the battery undisturbed for 30 min., and then measure the back-up current.

• If not within the specification, measure the back-up current while removing the fuses one by one from the inside of the main fuse block and the inside of the fuse block.

Note

• If the battery is not left undisturbed for 30 min, the tester will indicate a high value (approx. 200 mA).

• If the key or any electrical accessory is operated within approx. 30 min after the tester is connected, the battery must be left undisturbed for approx. 30 min from that point.

Caution

• Operating electrical loads while the back-up current is being measured can damage the tester.

Note

• For the vehicles with the immobilizer system, periodically shifts synchronization of the security light flashing.Therefore, 35 mA (0.1 s) current is supplied when the security light is illuminated, and 15 mA (2 s) current is supplied when the security light is not illuminated. In addition, the measuring instrument, which shows the average value, indicates around 20 mA.

Back-up current (Vehicles with immobilizer system)

15-35 mA

Back-up current (Vehicles without immobilizer system)

20 mA or less

4. Inspect and repair wiring harnesses and connectors of the fuse where the current decreased.