Cadillac Repair: electronic climate control wont work, cadillac fleetwood brougham, electronic climate control

Question
i have a 1987 cadillac fleetwood brougham rwd.and the climate control will not read right.it will start from 12 and ends at 35 what should do about it.thank you

Answer
Are all of the other digital displays operating OK.

Perform this test:

1. Ignition switch ON.

2. Simultaneously push and hold the OFF and WARMER buttons for 2 seconds and release them.

See if any letter/numbers display before the display stops at .7.0.

Let me know what displays in the EXACT order as if you were video taping them.

Turn ignition OFF.

If you lose track, Start over at # 1 above.