OBD-II code · manufacturer-specific
P1521
IMRC Input Error (Bank 1)
- System
- P1 — Powertrain (manufacturer-specific)
- Severity
- Moderate (3/5)
- Can I keep driving?
- Drive with caution
What does P1521 mean?
P1521 is defined as “IMRC Input Error (Bank 1)”.
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.
- Volkswagen: Intake Manifold Changeover Valve 2 Circuit Electrical Malfunction
- Kia: Power Steering Switch Circuit
- Buick, Cadillac, Chevrolet, Chrysler, GM, GMC, Oldsmobile, Saturn: Transmission Engaged At High Throttle Angle
- Citroen, Diğer, Peugeot: Variable Intake Solenoid #1 Circuit Malfunction
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This page is general information; an exact diagnosis needs measurements and a technician’s check.