Relay Box (Interior) Repair Procedures

Fuse Inspection

1. 1
   Make sure the fuse holders have no play and that the fuses are held securely.
2. 2
   Make sure the fuse ratings for each circuit are correct.
3. 3
   Check whether the fuse is blown. If it is necessary to replace the fuse, be sure to use a new fuse of the same rating. Always determine why the fuse blew first, and fully correct the problem before installing a new fuse.

Inspection

1. 1
   The SJB can be diagnosed using GDS. The SJB communicates with GDS, which then displays the inputs and outputs together with the codes.
2. 2
   To diagnose the SJB function, select the vehicle model, BCM and SJB.

   

3. 3
   To view the SJB input/output current values, select "Current Data". This provides information on the SJB input/output conditions.

   

4. 4
   To perform a functional check of the SJB outputs, select "Actuation Test".

   

Removal

1. 1
   Disconnect the negative (-) battery terminal.
2. 2
   Remove the emergency pad lower panel. (Refer to Body - "Emergency Pad Lower Panel")
3. 3
   Disconnect the connectors on the fuse side of the Intelligent Junction Box.
4. 4
   Remove the Smart Junction Box after loosening the mounting nuts and bolt.

   

5. 5
   Disconnect the connectors from the rear side of the intelligent junction box.

Installation

1. 1
   Install the smart junction box.
2. 2
   Install the emergency pad lower panel.
3. 3
   Make sure that the entire system operates normally.