HD13 Checking Wiring Harness (Circuit 429)

^ Turn air suspension switch to OFF position.

^ Disconnect air suspension control module connector.

^ Using an analog ohmmeter, connect one lead to air suspension control module wiring harness connector Pin 41 (Circuit 429) and other to left rear air spring solenoid valve wiring harness connector Circuit 429.

^ Is ohmmeter reading greater than 10 ohms?

YES -- GO to HD14.

NO -- SERVICE open in Circuit 429. REPEAT Service Bay Diagnostics. Reading and Clearing Diagnostic Trouble Codes