P1520
Intake Manifold Runner Control Circuit Fault
P1520 is an OBD-II diagnostic trouble code meaning: Intake Manifold Runner Control Circuit Fault. Common causes: damper control solenoid valve malfunction, open or short circuit in control circuit. Estimated repair cost: $17–67.
Symptoms
- Reduced engine power
- Increased fuel consumption
- Rough engine idling
- Check Engine Light Is On
- The engine goes into emergency mode
Causes
- Damper control solenoid valve malfunction
- Open or short circuit in control circuit
- Mechanical jamming of dampers
- Problems with the engine control unit
- Oxidation of contacts in connectors
How to Fix
- Check the integrity of wiring and connectors
- Test the control solenoid valve
- Check the mechanical part of the dampers for free movement
- Clean or replace faulty components
- Reset the error and check the system operation
Related codes
Error P1520 by Vehicle Brand
FAQ
What does the P1520 code mean?
P1520 is an OBD-II diagnostic trouble code that indicates: Intake Manifold Runner Control Circuit Fault
What causes a P1520 error code?
The most common causes of P1520 include: Damper control solenoid valve malfunction; Open or short circuit in control circuit; Mechanical jamming of dampers; Problems with the engine control unit.
How do I fix a P1520 diagnostic trouble code?
To fix P1520: Check the integrity of wiring and connectors. Test the control solenoid valve. Check the mechanical part of the dampers for free movement. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1520?
Limited driving only, diagnose soon
How much does it cost to fix P1520?
The estimated repair cost for P1520 is $17–67. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat