| SONATA(YF) >2012 > G 2.4 GDI > Body Electrical System > Hands Free System > Hands Free Switch>Repair procedures |

Inspection

1. | Check the hands free remote control switch for resistance between No.3 and No.4 terminals in each switch position.

Switch | Connector terminal | Resistance (±5%) | Output voltage (±0.22V)
Send | 3 - 4 (RH) | 40.91 kΩ | 4.48 V
End of call | 3 - 4 (RH) | 18.91 kΩ | 4.0 V
Voice | 3 - 4 (RH) | 10.71 kΩ | 3.5 V

2. | In case of LH, check the hands free remote control switch for resistance between No.3 and No.4 terminals in each switch position.

Switch | Connector terminal | Resistance (±5%) | Output voltage (±0.22V)
Send | 3 - 4 (LH) | 40.91 kΩ | 4.48 V
End of call | 3 - 4 (LH) | 18.91 kΩ | 4.0 V
Voice | 3 - 4 (LH) | 10.71 kΩ | 3.5 V

Removal

1. | Disconnect the negative (-) battery terminal.

2. | Remove the driver airbag module. (Refer to the RT group)

3. | Remove the steering wheel. (Refer to the ST group - "Steering column & shaft")

4. | Remove the steering wheel cover (A) after loosening the screws.

5. | Remove the steering wheel remote control switch connector (A) after loosening the mounting screws.

Installation

1. | Reassemble the steering wheel remote control switch after connecting the connector.

2. | Reassemble the steering wheel.

3. | Reassemble the driver airbag module.

Make sure the hands free remote control switch and the airbag module connectors are plugged in properly.