Hyundai Sonata: Relay Box (Passenger Compartment) Repair procedures - Fuses And Relays - Body Electrical SystemHyundai Sonata: Relay Box (Passenger Compartment) Repair procedures

Fuse Inspection
1.
Be sure there is no play in the fuse holders, and that the fuses are held securely.
2.
Are the fuse capacities for each circuit correct?
3.
Are there any blown fuses?
   
If a fuse is to be replaced, be sure to use a new fuse of the same capacity. Always determine why the fuse blew first and completely eliminate the problem before installing a new fuse.
Diagnosis with GDS
1.
The body electrocal system can be quickly diagnosed failed parts with vehicle diagnostic system (GDS).
The diagnostic system (GDS) provides the following information.
(1)
1) Self diagnosis : Checking the failure code (DTC) and display
(2)
2) Current data : Checking the system input/output data state
(3)
3) Actuator test : Checking the system operation condition
(4)
4) Additional function : Other controlling such as he system option and zero point adjustment
2.
Select the "Car Model" and the system to be checked in order to check the vehicle with the tester.
3.
Select the "Smart Junction Block (SJB)".
4.
Select the "Current Data" menu to search the current state of the input/output data.
The input/output data for the sensors corresponding to the Smart Junction Block (SJB) can be checked.

5.
If you will check the power door lock operation forcefully, select "Actuation Test".

6.
If you want to change user option, select "User Option".

Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the crash pad lower panel.
(Refer to Body - "Crash Pad Lower Panel")
3.
Disconnect the connectors from the fuse side of the smart junction block.
4.
Remove the smart junction block (A) after loosening the mounting nuts.

5.
Disconnect the connectors from the back side of the smart junction box.
Installation
1.
Install the smart junction box.
2.
Install the crash pad lower panel.
3.
Connect the negative (-) battery terminal.
4.
Check that all system operates normally.
    Relay Box (Passenger Compartment) Description and Operation
    Description Auto Cut System Of Dark Current AbbreviationExpalnationACUAirbag Control UnitADMAssist Door ModuleB_CANBody Controller Area NetworkBCMBody Control ModuleBSDBlind Spot DetectionC_CANC ...

    See also:

    General Safety Information and Caution
    General Safety Information and Caution Be careful when driving the vehicle using the smart cruise control system as follows.     • The smart cruise control system may have l ...

    Rear Back Armrest Repair procedures
    Replacement     • When prying with a flat-tip screwdriver or use a prying trim tool, wrap it with protective tape, and apply protective tape around the related parts, to ...

    Manifold Absolute Pressure Sensor (MAPS). Schematic Diagrams
    Circuit Diagram ...