Disconnect the negative (-) battery terminal.
Pull the trim cover aside in the left side of trunk and remove the rear fog lamp bulb (A).
Install the rear fog lamp.
Connect the negative (-) battery terminal.
Disconnect the negative (-) battery terminal.
Remove the lighting switch of the multi-function switch. (Refer to "Multifunction switch")
With the rear fog lamp switch, make sure that continuity exists between the terminals below.
If continuity is not as specified, replace the multi-function switch.