HB13 Checking Wiring Harness With Air Suspension Switch Off

^ 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 21 (Circuit 415) and other to left front air spring solenoid valve wiring harness connector Circuit 415.

^ Is ohmmeter reading greater than 10 ohms?

YES -- GO to HB14.

NO -- SERVICE open in Circuit 415. REPEAT Service Bay Diagnostics. Reading and Clearing Diagnostic Trouble Codes