1999 Jeep Cherokee Instrument cluster

Instrument cluster fails completely, check gauges lite comes on, check engine lite comes on, key sentry lite comes on, gas pump lite comes on, overhead system monitor fails to update, problem was intermittent (mostly working) but has deteriorated to working sometimes during start-up to almost completely not working. Seemed at first to be ambient temp/operation temp related but now may work for 2-4 seconds at start-up and then full, continuous fail. Reply to: afn03388@hotmail. Com