Blown Rear Air Shocks on 2012 Yukon Denali – Is it Worth Fixing?

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beeswax

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I have a 2012 Yukon Denali with blown rear air shocks and a "Service Suspension System" message on the dash. I’m wondering if it’s worth fixing and have some questions about what might be involved.

The compressor doesn’t turn on at all. Does this mean I’ll need to replace the compressor along with the air shocks, or is there a system feature that keeps the compressor off if it detects blown shocks?

My OBD scanner is giving me code C0660-06. Does repairing the shocks and possibly the compressor noticeably improve ride quality and smoothness?
 

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