Kia Niro: Power Train / Battery Repair procedures

Inspection

Battery Voltage and Status

Check the battery voltage and status using the battery tester.

Battery Terminal

1.

Move back and forth to check that the battery terminals (A) are loose or corroded.If the terminals are corroded, clean them.

If battery positive connection is loose, disconnect ground(GND) cable first before attempting to remove or tighten plus connection, to prevent personal injury.

2.

If the battery clamp on battery positive (+) terminal is not seated securely:

(1)

Turn ignition switch OFF and disconnect the battery negative (-) terminal.

(2)

Tighten battery clamp (A) on battery positive (+) terminal

Battery positive (+) terminal tightening nut :

7.8 - 9.8 N·m (0.8 - 1.0 kgf·m, 5.8 - 7.2 lb·ft)

3.

If the battery clamp on battery negative (-) terminal is not seated securely:

(1)

Tighten battery clamp (A) on battery negative (-) terminal.

Battery negative (-) terminal tightening nut :

7.8 - 9.8 N·m (0.8 - 1.0 kgf·m, 5.8 - 7.2 lb·ft)

Battery Condition

Check the battery for damage or deformation. If severe damage, deformation or leakage is found, replace the battery.

Vehicle parasitic current inspection

[Using the Ammeter]

1.

Turn the all electric devices OFF, and then turn the ignition switch OFF.

2.

Close all doors except the engine hood, and then lock all doors.

(1)

Disconnect the hood switch connector.

(2)

Close the trunk lid.

(3)

Close the doors or remove the door switches.

3.

Wait a few minutes until the vehicle’s electrical systems go to sleep mode.

  

For an accurate measurement of a vehicle parasitic current, all electrical systems should go to sleep mode. (It takes at least one hour or at most one day.) However, an approximate vehicle parasitic current can be measured after 10-20 minutes.

4.

Connect an ammeter in series between the battery (-) terminal and the ground cable, and then disconnect the clamp from the battery (-) terminal slowly.

  

Be careful that the lead wires of an ammeter do not come off from the battery (-) terminal and the ground cable to prevent the battery from being reset. In case the battery is reset, connect the battery cable again, and then start the engine or turn the ignition switch ON for more than 10 sec. Repeat the procedure from No. 1.

To prevent the battery from being reset during the inspection,

1)

Connect a jump cable between the battery (-) terminal and the ground cable.

2)

Disconnect the ground cable from the battery (-) terminal.

3)

Connect an ammeter between the battery (-) terminal and the ground cable.

4)

After disconnecting the jump cable, read the current value of the ammeter.

5.

Read the current value of the ammeter.

If the parasitic current is over the limit value, search for abnormal circuit by removing a fuse one by one and checking the parasitic current.

Reconnect the suspected parasitic currentdraw circuit fuse only and search for suspectedunit by removing the component connected with thecircuit one by one until the parasitic draw dropsbelow limit value.

Limit value (after 10-20 min.) : Below 50mA

[Using the Clamp type Ammeter]

1.

Turn the all electric devices OFF, and then turn the ignition switch OFF.

2.

Close all doors except the engine hood, and then lock all doors.

(1)

Disconnect the hood switch connector.

(2)

Close the trunk lid.

(3)

Close the doors or remove the door switches.

3.

Wait a few minutes until the vehicle’s electrical systems go to sleep mode.

  

For an accurate measurement of a vehicle parasitic current, all electrical systems should go to sleep mode. (It takes at least one hour or at most one day.) However, an approximate vehicle parasitic current can be measured after 10 - 20 minutes.

4.

Install the clamp type ammerter on battery negative (-) terminal.

5.

Read the current value of the ammeter.

If the parasitic current is over the limit value, search for abnormal circuit by removing a fuse one by one and checking the parasitic current.

Reconnect the suspected parasitic currentdraw circuit fuse only and search for suspectedunit by removing the component connected with thecircuit one by one until the parasitic draw dropsbelow limit value.

Limit value (after 10-20 min.) : Below 50mA

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