Nissan Repair: main relay clicking, autozone, speedometer

Question
Afternoon,

The check engine light is the brake light in the dash and it has been on ever since I had the vehicle about 18 months ago.  Something funny I thought of- up until maybe october or so the last time I remember, the front corner light would remain on after turning off vehicle.  Every time I parked I would unhook the negative batt terminal.  Haven't done that in a few months however.  Speedometer/ odometer never worked either.

Answer
Hi Jamie -

Best thing is to get the OBD code. This is what is casuing the check engine light to illuminate, and perhaps your issues with the engine. If you have an autozone near you, I think they will download the code for free. Once that is done, then we have a base to start diagnosis. This wat we are not shooting in the dark.

Let me know -
aloha
calvin