I have 2006 Rav4 limited 2.4L 4 cyclinder. I changed rear brake pads along with the cabin filter yesterday. Today I noticed VSC, 4WD and Check engine lights stays on after vehicle in driving. tried to disconnected the battery and reconnect after 15 minutes. still 3 messages come back. since my dealer quoted $350.00 to change in brake pad, I did it myself. did I screwed something bad. Please provide me what to check for.