HA8 Checking Wiring Harness (Circuit 421)

^ Using an analog ohmmeter, connect one lead to air suspension control module wiring harness connector Pin 40 (Circuit 430G) and the other to air compressor assembly vehicle wiring harness connector Circuit 430E.

^ Is ohmmeter reading greater than 10 ohms?

YES -- SERVICE open in circuit used to activate vent solenoid valve Circuit 421. REPEAT Service Bay Diagnostics. Reading and Clearing Diagnostic Trouble Codes

NO -- GO to HA10.