| Troubleshooting |

Removal 1. Disconnect the battery sensor connector (A), battery negative terminal (B) and positive terminal (C). 2. Disconnect the vent hose connector (A) from the battery air vent hole.
Description Vehicles have many control units that need large amounts of electricity. These units control their own system based on information from diverse sensors.
Inspection 1. Ignition "ON". 2. Turn on the head lamp switch. 3. Check that the aim of the head lamp changes smoothly when the head lamp leveling device switch is turned on. 4. If it does not operate well, check the connector and terminals to make sure that they are connected.
Diagnosis With GDS 1. BSD system defects can be quickly diagnosed with the GDS. GDS operates actuator quickly to monitor, input/output value and self diagnosis. 2. Connect the cable of GDS to the data link connector in driver side crash pad lower panel, and turn on the GDS.