HA10 Component Check
^ Using a 12 volt power supply, connect positive lead to air compressor assembly connector Pin 1 and negative lead to air compressor assembly connector Pin 2 for two to three seconds. REPEAT this as required.
^ Does vent solenoid make an audible click sound when voltage is applied?
YES -- REPLACE air suspension control module and REPEAT Service Bay Diagnostics. Reading and Clearing Diagnostic Trouble Codes
NO -- REPLACE air compressor assembly. REPEAT Service Bay Diagnostics. Reading and Clearing Diagnostic Trouble Codes