ID19 Checking Wiring Harness (Circuit 429)
^ Turn air suspension switch to OFF position.
^ Disconnect air suspension control module connector.
^ Using an analog ohmmeter (20,000 ohms per volt is recommended), connect one lead to the air suspension control module wiring harness connector Pin 41 (Circuit 429) and other to the right rear air spring solenoid valve wiring harness connector Circuit 429.
^ Is ohmmeter reading less than 10 ohms?
YES -- GO to ID2O.
NO -- SERVICE open in Circuit 429. REPEAT Service Bay Diagnostics. Reading and Clearing Diagnostic Trouble Codes