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IC12 Checking Wiring Harness (Suspension Down)



^ Depress STAR test button so that it remains in the down TEST position.

^ Remove air compressor relay from its vehicle wiring harness connector.

^ Using an analog ohmmeter, connect one lead to Circuit 417 of the air compressor relay connector and other lead to Circuit 417 of the air compressor vehicle wiring harness connector.

^ Is ohmmeter reading greater than 5 ohms?

YES -- SERVICE open in Circuit 417. REPEAT Service Bay Diagnostics. Reading and Clearing Diagnostic Trouble Codes

NO -- GO to IC13.