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1985 Cadillac Seville suspension sensors


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Hello everyone, I just joined and very excited to say that I have an 85 Cadillac Seville Elegante I've had for 3 years. Now I'm starting to restore it part by part. I started out trying to sell this car for my friend and ended up with it for this length of time. I really enjoy the car and I hoping to get it restored within the next year. I have two mechanics for it that have the OBD1 scanner. One mechanic knows a lot and the other doesn't. The rear shocks were air suspension shocks and because they were old and cracking they are changed to standard KYB shocks. I unplugged the pump  but The dash light for the pump keeps blinking blue constantly. Neither mechanic really gives me a answer why it's blinking. Are there sensors for the suspension that I could pull a fuse on or disconnect somehow?? Thanks for your help, appreciate it. 

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Explain what you mean by standard KYB shocks, are they air shocks?

These cars are level balanced with the air shock, it is a necessary part of the suspension.  I do not know who would replace an air shock with a 'standard shock'.  If you ever put 4 adults in the car you will be on the ground, and if you hit a pot hole or dip in the road good luck.  The car is designed to be at a  specific 'ride height'.  The air leveling component is necessary.

Did one of these mechanics suggest this?  And why KYB?

Please provide more details.  

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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On 8/17/2020 at 3:38 PM, Göran W said:

If my memory still serves me You can not UNPLUG anything to make it go away. Need a resistor to match the sensor that send the correct value to computer.

No, I dont know the value...

This is true with the electronic struts.

Were these electronic struts in 85?  He might be getting a ALC message related to the air leveling suspension.  

He can pull codes, but pulling the codes for the suspension was a little involved on the 85, and might involve interpreting flashes once in suspension diagnostic mode. 

My oldest manual is 88.

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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