IB13 Checking Wiring Harness (Circuit 430B to Ground)

^ Using an analog ohmmeter, connect one lead to air compressor relay Circuit 430B and the other to a known good ground.

^ Is ohmmeter reading greater than 5 ohms?

YES -- SERVICE open in Circuit 430B. REPEAT Service Bay Diagnostics. Reading and Clearing Diagnostic Trouble Codes

NO -- GO to IB14.