Disconnect the negative (-) battery terminal.

Remove the front seat heater switch module.

(Refer to BD group - "Crash pad")

Remove the heater control unit (B) with hazard switch (A).

Remove the heater control unit connector (A).

Install the heater control unit.

Install the seat heater switch module.

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

Select "Current data", if you will check current data of hazard switch.

If you will check the hazard switch operation forcefully, select "Actuation test".