I have an 08 that sat for about 2 months and now it’s showing error code 05 when I press the throttle. I have read that would be caused by the main contactor not engaging but I hear a click from the right side of the dash when I press the throttle the for the 1st time and then again when I engage the parking brake. I don’t believe the click Is as loud as it used to be but not sure. Also my low beam headlights stopped working. Anyone have any suggestions on what/how to trouble shoot?