I'm have trouble with my 97 SE. My HUD works intermittently. I've got flashing zeros on my DIC and the trak off light blinks when I hit the accelerator. I know it's not the DIC, because I've replaced it with a known working DIC with the same results (yes, I'm sure they are 97 DICs). I've replaced all the fuses with new ones. Which component should I be checking first?