OBD-II code · manufacturer-specific
P1511
Idle Air Control Overspeed Error
- System
- P1 — Powertrain (manufacturer-specific)
- Severity
- Minor (2/5)
- Can I keep driving?
- Drive with caution
What does P1511 mean?
P1511 is defined as “Idle Air Control Overspeed Error”.
Drive gently and only as far as you need to; have it checked as soon as possible.
Manufacturer-specific meanings
The same code can mean something different on some makes.
- Toyota: Boost Pressure Low
- BMW: DISA Control Circuit Electrical
- Subaru: Idle Air Control Solenoid Signal 1 Circuit High Input
- Kia: Idle Air Control Valve Coil 2 Circuit Malfunction
- Citroen, Diğer, Peugeot: Idle Switch (Electric Control Throttle) Circuit Malfunction
- Volkswagen: Intake Manifold Changeover Valve Circuit Electrical Malfunction
- Buick, Cadillac, Chevrolet, Chrysler, GM, GMC, Oldsmobile, Saturn: Throttle Control System Backup System Performance
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This page is general information; an exact diagnosis needs measurements and a technician’s check.