P1520 Mazda Code - Intake Manifold Runner Control Circuit Fault
Quick Answer
The Intake Manifold Runner Control (IMRC) is an electrically actuated system consisting of a motorized actuator with an attaching linkage for each housing on each bank. Common causes include Faulty Intake Manifold Runner Control (IMRC) actuator, Intake Manifold Runner Control actuator harness is open or shorted, Intake Manifold Runner Control actuator circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1520 Mazda indicates Intake Manifold Runner Control Circuit Fault.
- Common causes
- Common causes include Faulty Intake Manifold Runner Control (IMRC) actuator, Intake Manifold Runner Control actuator harness is open or shorted, Intake Manifold Runner Control actuator circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1520 Mazda Description
What are the Possible Causes of the DTC P1520 Mazda?
- Faulty Intake Manifold Runner Control (IMRC) actuator
- Intake Manifold Runner Control actuator harness is open or shorted
- Intake Manifold Runner Control actuator circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
How to Fix the DTC P1520 Mazda?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1520 Mazda code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P1520 Mazda Code
What does the OBDII code P1520 mean for a Mazda?
P1520 indicates a fault in the Intake Manifold Runner Control (IMRC) circuit, which regulates airflow within the intake manifold for optimal engine performance.
What are the common symptoms of code P1520 in a Mazda?
Symptoms may include reduced engine power, poor fuel economy, rough idling, and the check engine light being illuminated.
What causes the P1520 Intake Manifold Runner Control Circuit Fault?
Common causes include a faulty IMRC actuator, wiring issues, electrical connector problems, or a malfunctioning IMRC sensor.
Can I drive my Mazda with code P1520?
While the vehicle may still be drivable, prolonged use with this code can lead to decreased engine performance and potential damage to other components.
How do you diagnose code P1520 in a Mazda?
Diagnosing involves inspecting the IMRC actuator and wiring, testing the circuit for proper voltage, and using a scan tool to monitor IMRC sensor data.
What repairs are needed to fix code P1520?
Repairs may include replacing the IMRC actuator, repairing damaged wiring or connectors, or cleaning the intake manifold runners if they are stuck or clogged.
How much does it cost to fix code P1520 on a Mazda?
Repair costs can vary but typically range from $100 to $500 depending on the severity of the issue and labor costs.
Is code P1520 specific to Mazdas?
No, P1520 can appear on other vehicle makes and models, but the specific IMRC system design and repair procedures may differ.
How can I prevent code P1520 from occurring again in my Mazda?
Regular maintenance, such as cleaning the intake manifold and inspecting wiring connections, can help prevent this issue.
Will clearing the code fix P1520?
Clearing the code with a scan tool will remove the error temporarily, but the underlying issue must be addressed to prevent the code from returning.
Discuss the causes and fixes for P1520 Mazda OBDII Code
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