Body Electrical System
BLUE LINK Module Repair Procedures
In this manual: Body Electrical System
13steps
~78min
3/5difficulty
Done 0 of 13
Removal
- Disconnect the negative (-) battery terminal.
- Remove the driver airbag module assembly. (Refer to Body - "Driver Airbag Module Assembly")
- Remove the knee airbag (KAB) module. (Refer to Restraint System - Knee Airbag (KAB) Module.)
- Remove the driver side shower duct. (Refer to Heating, Ventilation and Air Conditioning - Temperature Control Actuator.)
- Disconnect the connector, loosen the nut and screws, then remove the blue connector block.


Installation
- Install the blue connector block.
- Install the main crash pad.
- Connect the negative (-) battery terminal.
Inspection
Diagnosis with GDS
- Body electrical system faults can be quickly diagnosed with the Global Diagnostic System (GDS). The GDS provides the following information.
- Self-Diagnosis: Diagnostic Trouble Code (DTC) check and display
- Current Data: Check the system input/output status.
- Actuator Test: Checking System Operating Status
- Additional Functions: Other controls such as system option and zero point adjustment.
- Select "Vehicle Model" and the system to be checked to inspect the vehicle with the tester.
- Select "Telematics Unit (TMU)" to inspect the telematics unit.
- Select the "Current Data" menu to check the current status of input/output data. Input/output data for the sensors related to the TMU can be checked.

- To check the TMU trouble code, select "Diagnostic Trouble Codes".
Test yourself
A quick Hyundai Sonata LF quiz: every answer comes with an explanation and a link to the manual page.
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