The SJB can be diagnosed by using the GDS. The SJB communicates with the GDS which then displays inputs and outputs along with codes.

It will be able to diagnose defects of hazard lamp switch with GDS quickly. GDS can operates actuator forcefully, input/output value monitoring and self diagnosis.

To diagnose the SJB function, select the vehicle model, BCM and SJB.

To consult the present input/out value of SJB, "Current DATA". It provides information of SJB input/output conditions.

Disconnect the negative (-) battery terminal.

Remove the center airvent assembly (A).

Disconnect the connector (A) from the center airvent assembly.

Remove the hazard switch (A) from the center airvent assembly.

Install the hazard switch in the center airvent assembly.

Connect the connector and install the center airvent assembly.

Connect the negative (-) battery terminal.