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) When is the code
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) When is the code
Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1520 Information for specific makes P1520 BUICKP1520 CADILLACP1520 CHEVROLETP1520 FORDP1520 MERCURYP1520 GMCP1520 HYUNDAIP1520 LEXUSP1520 TOYOTA
P1520 CHEVROLET – Transmission Range Switch Circuit
P1520 GMC – Transmission Range Switch Circuit
P1520 HYUNDAI – Generator Front Terminal Malfunction
P1520 LEXUS – Stop Lamp Switch Malfunction
P1520 TOYOTA – Stop Light Switch Signal Malfunction
P1520 BUICK – Gear Indicator System
P1520 CADILLAC – Gear Indicator System