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Many thanks to John and toptechx6 -- plan to delve into horn issues soon using your recommendations.

Thanks John and Toptechx6 -- Great suggestions, but before I launch into this: I've seen that some C4 posters recommend deactivating airbag w/ nothing more than 15 min battery disconnect, while others say follow more involved FSM procedure. Your experiences...

Toptech6 -- Thanks for the advice. I drove the car quite a bit this past weekend, and noted that when the steering wheel is turned off center, the horns will sometimes work. Does this bit of info change diagnosis? (I seem to remember a past post about this very thing, but can't seem to...

My horns quit working a few days ago. They're both OK when activated by PKE/alarm system, but pressing the steering wheel buttons elicits no response from horns nor any relay clicking noises. Might the horn relay still be bad even tho horns still work w/ alarm, or is the source of my problem...

Climate control head R&R Matt The symptoms you describe sound identical to the ones Ruby had. I followed the instructions I received on this forum for removing console trim, etc to get access to the head unit itself. Once I had the climate control unit out of the car, I (very carefully) removed...

93 Ruby climate control R&R -- Success!! :) Even with my limited mechanical skills I was able to get the CC head unit out and, after disassembly and alcohol scrubdown, it now works perfectly. I bought a nice Craftsman 1/4 in socket set to do the job and that, plus the great help I'd received...

Thanks! I much appreciate all who've responded to my call for advice on my Ruby's climate control problem. Within the next few days I plan to remove the climate control head (thanks to '94cvt and John for instructions) and try and clean it up. I'll post results. 86-zz3: what's ALDL terminal...

Thanks for the suggestion. I excluded fuses as the culprit because the climate control head has power, i.e. the outside temp shows (accurately I believe) in the digital display, and the green light on the climate control's "Auto" button is illuminated. I'm currently in Florida and it's been...

My C4 Ruby coupe's Climate Contol System has, evidently like many others, decided to cease responding to operator inputs. I'd like to attempt to remove the unit and clean the contacts, a procedure that appears to have been successful in many cases. If contact cleaning doesn't work as hoped, I...