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When You have checked all your fuses and relays there all fine but your air suspension compressor still will not activate and the switch is on what could be wrong?

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Answer

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Wiki User
09/14/2011

Your light control module(LCM) may not be working. I replaced my air suspension system with regular shocks because of this problem. The LCM is a black box almost the size of a vhs tape found underneath the steering wheel.