Battery: Testing and Inspection

BATTERY INSPECTION [L3 WITH TC]

WARNING:
1 Since battery acid is toxic, be careful when handling the battery.
2 Since battery acid is highly corrosive, be careful not to allow it to contact clothing or the vehicle.
3 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 Specific Gravity

1. Measure the electrolyte specific gravity using a hydrometer.

- If it is less than the specification, recharge the battery. Procedures

Battery electrolyte specific gravity [20 °C {68 °F}]
- 1.22-1.29

Battery Voltage

1. Inspect the battery as follows:

Step 1-Step 3:

Battery load test current
- 55D23L (48): 180 A
- 75D23L (52): 195 A
Standard specification





Back-up Current

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

2. Remove the battery cover. Removal and Replacement

3. Disconnect the negative battery cable.

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

NOTE:
- If the battery is not left undisturbed for 10 min or more, but less than 2.5 hours, the tester will indicate a high value (approx. 200 mA).
- If the ignition or any electrical accessory is operated after the tester is connected, the battery must be left undisturbed for 10 min or more, but less than 2.5 hours from that point.
- For vehicles with the immobilizer system, the system periodically shifts synchronization of the security light flashing. Therefore, 65 mA (0.1 s) current is supplied when the security light is illuminated, and 40 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 55 mA.

4. Connect the tester between the negative battery terminal and negative battery cable, leave the battery undisturbed for 10 min or more, but less than 2.5 hours, 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.
- Inspect and repair wiring harnesses and connectors of the fuse where the current has decreased.

Battery back-up current (When the ignition is off (key is removed) and all doors are closed.)
- 40-65 mA

NOTE:
- If the battery is left for 2.5 hours or more, a battery back-up current value of 25-45 mA is indicated.