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How do you check the ELC pump on a 1997 Buick Park Avenue?
How can I activate the ELC pump?
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If you just want to see if the compressor will run, you can jump the relay from terminal #30 to #87.
The Electronic Level Control (ELC) Relay is located inside the Rear Bussed Electrical Center (BEC).
Where are terminals located.
The terminals are where the relay plugs in. The #30 terminal is circuit 340 in the attached diagram and the #87 is circuit 322. (corner to corner)
Also, make sure that the #30 terminal does have power to it. Is there a problem with the ELC?