TUCSON(LM) >2012 > G 2.0 DOHC > Body Electrical System > Lighting System > Rheostat>Repair procedures  
Inspection
1.
Disconnect the negative (-) battery terminal.
2.
Remove the crash pad lower panel.
(Refer to the BD group - "Crash pad")
3.
Remove the crash pad side switch assembly (A) as shown below picture.

Put on gloves to protect your hands.
4.
Remove the rheostat switch (A) after disconnecting the connectors.

Take care not to damage the hook when removing the rheostat switch.
5.
Operate the switch and check for continuity between terminals with an ohmmeter.