Hyundai Sonata: Rear Glass Defogger Switch. Repair procedures - Rear Glass Defogger - Body Electrical SystemHyundai Sonata: Rear Glass Defogger Switch. Repair procedures

Inspection

1.
The rear glass defogger switch inputs can be checked using the GDS.
2.
To check the input value of rear glass defogger switch, select option "Body Control Module".
3.
To consult the present input/output value of BCM, "Current DATA". It provides information of BCM input/output conditions of rear defogger relay.

4.
To check the input value of rear glass defogger switch in force mode, select option "Actuation Test of smart junction box".


Removal

1.
Disconnect the negative(-) battery terminal.
2.
Remove the center fascia panel (A) after loosening the mounting screws.

3.
Disconnect the heater control unit connector (A) and hose (B).

4.
Remove the heater control unit contained the rear glass defogger switch from the center fascia panel.

Installation

1.
Install the heater control unit.
2.
Install the center fascia panel.
3.
Install the crash pad garnish.

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