Note On Intermittents
WARNING: This page is about a different car, the 1990 Cadillac Seville and 1990 Cadillac Eldorado. However, it is still accessible from the selected car via links, so may be relevant.
Ensure good terminal contact at IPC for data line, power and ground connections. Also, watch for intermittent at transition block and in the flex circuit portion of the IPC carrier assembly. If wiring is good and intermittents continue, replace IPC.