Alfa Romeo P1490 Low Speed Fan CTRL Relay Circuit

Description Chrysler OBD-II Trouble Code Description for P1490 Alfa Romeo Low Speed Fan CTRL Relay Circuit OBD-II Trouble Code Description for P1490 Alfa Romeo Secondary Air Relief Solenoid Circuit Malfunction OBD-II Trouble Code Description for P1490 Alfa Romeo Vacuum Cut Valve Bypass Valve (Circuit) PSA OBD-II Trouble Code Description for P1490 Alfa Romeo Secondary Air…

P1490 Acura Low Speed Fan CTRL Relay Circuit

Description Chrysler OBD-II Trouble Code Description for P1490 Acura Low Speed Fan CTRL Relay Circuit OBD-II Trouble Code Description for P1490 Acura Secondary Air Relief Solenoid Circuit Malfunction OBD-II Trouble Code Description for P1490 Acura Vacuum Cut Valve Bypass Valve (Circuit) PSA OBD-II Trouble Code Description for P1490 Acura Secondary Air relief solenoid circuit malfunction…

P1490 NISSAN Vacuum Cut Valve Bypass Valve

Possible causes – Faulty Vacuum Cut Valve Bypass Valve– Clogged vacuum hoses to the Vacuum Cut Valve Bypass Valve– Vacuum cut valve bypass valve harness is open or shorted– Vacuum cut valve bypass valve electrical circuit poor connection Tech description There is a factory service bulletin for the following Nissan models: 2002 Nissan Altima2003 Nissan…

P1490 INFINITI Vacuum Cut Valve Bypass Valve

Possible causes – Faulty Vacuum Cut Valve Bypass Valve– Clogged vacuum hoses to the Vacuum Cut Valve Bypass Valve– Vacuum cut valve bypass valve harness is open or shorted– Vacuum cut valve bypass valve electrical circuit poor connection When is the obd code mean? – An improper voltage signal is sent to ECM through vacuum…