1991 Riviera dash cluster intermittent failure
Just picked up a nice 91 Riv. I usually do my homework before buying a car, but this one was too nice to miss. However, I have heard of the digital dash going out on these models and now mine is acting up. The problem is intermittent with the dash working and then going all black with the speedo reading "00" and a message that says "error" (ya think?). Also a little idiot message light comes on that says "electrical problem" (no doubt). You drive a little bit and then everythings back to normal, then it goes black again. I recently installed a new battery and negative terminal bolt. Should I check for a bad ground somewhere or is there a problem with the ECM or BCM, maybe? I heard theres a chip that can go bad,also. Any ideas on where to start would be appreciated. Thanks, new to this forum and it looks like a great place to offer or get help.