P1517 GMC Intake Manifold Runner Control Input Error

Possible causes

– Intake Manifold Runner Control (IMRC) harness is open or shorted
– Intake Manifold Runner Control (IMRC) circuit poor electrical connection
– Faulty Intake Manifold Runner Control (IMRC) actuator
– Faulty Engine Control Module (ECM)

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)

P1517 GMC Description

The Intake Manifold Runner Control (IMRC) is monitored for failure during continuous or key ON engine OFF self-test.