Cadillac Repair: CCR system, climate control, electrical connections

Question
I have a 1991 Seville that in the driver information center fault flashes Check CCR system, what does this mean? The car still has the original shocks and I've checked and cleaned the electrical connections, where else can I look?

Answer
CCR + Command Control Ride. Which is your suspension system.

IS or HAS thje CHECK ENGINE light ever illuminated on the dash ?.

If you know how to check for fault codes via your climate control panel, Do so and let me know EXACTLY what appears on the fuel data display.