Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1511 Information for specific makes P1511 BUICKP1511 CADILLACP1511 CHEVROLETP1511 GMCP1511 HYUNDAIP1511 HYUNDAIP1511 SUBARU
P1511 HYUNDAI – ISC Circuit Open/Short
P1511 SUBARU – Idle air control solenoid valve signal 1 circuit high input
P1511 CADILLAC – Throttle Control System-Backup System Performance
P1511 CHEVROLET – Throttle Control System – Backup System Performance
P1511 GMC – Throttle Control System – Backup System Performance
P1511 HYUNDAI – ISC Circuit Open/Short
P1511 BUICK – Throttle Control System-Backup System Performance