DA3 Wiring Harness/Power Supply Circuit Check

^ Turn ignition key to OFF position.

^ Using an analog voltmeter, place positive voltage lead in wiring harness connector (for control module) Pin 1 (Circuit 298) and negative lead to Pin 60 (Circuit 430H).

^ Is there voltage of 1 volt or less?

YES -- TURN air suspension switch to OFF position. REPLACE air suspension control module and CONNECT to vehicle wiring harness. REPEAT Service Bay Diagnostics after service is made.

NO -- REFER to Starting and Charging/Ignition Switch/Diagrams after service is made. RECONNECT air suspension control module to vehicle wiring harness. REPEAT Service Bay Diagnostics. Reading and Clearing Diagnostic Trouble Codes