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P0075 Code – What Does It Mean & How To Fix It

This is one of the most frequent OBD2 trouble codes. Read the full article below to know what it means, how to fix it, and what other codes may show related to it.


DTC refers to the diagnostic trouble codes, which are standard systems for communicating and detecting possible malfunctions in vehicles. The P0075 code shall correspond to the Intake Valve Control Solenoid Circuit Bank 1 and shall be a DTC code.


The P0075 code indicates an issue with the control circuit of the intake valve solenoid in Bank 1 of the engine. The intake valve control solenoid is responsible for regulating the airflow to the engine cylinders, ensuring optimal performance and fuel efficiency.


The activation of the P0075 Code may be contributed to by several factors, such as:

Faulty Intake Valve Control Solenoid: A malfunctioning or defective solenoid can cause an interruption in the control circuit, leading to the activation of the P0075 code.

  • Wiring Issues: Damaged or corroded wires, loose connections, or short circuits in the solenoid control circuit can disrupt the proper operation of the intake valve control 
  • solenoid. 
  • Solenoid stuck open or closed: It may affect airflow to an engine cylinder and trigger a P0075 code if the solenoid is stuck open or closed.
  • Electronic Control Module (ECM) Problems: Issues with the vehicle’s main computer, the ECM, can interfere with the control signals sent to the intake valve control solenoid, leading to the code being triggered.


A number of symptoms may occur as soon as the P0075 code is triggered, including: 

  • Illuminated check engine light: a common indicator of trouble code, such as P0075, is the activation of an illuminated check engine light.
  • Engine Misfire: The engine may experience misfires or rough idling due to the improper regulation of airflow caused by the faulty intake valve control solenoid. 
  • Impaired engine performance: this may lead to reduced power, acceleration, and fuel consumption of the vehicle.


Please follow these steps for the accurate diagnosis of P0075 code: OBD II scanner: 

  • If you are looking for a trouble code and any related codes stored in the vehicle’s computer system, your automotive mechanic will use an OBD II scanner.
  • Visual inspection: To determine the obvious signs of damage, corrosion, or loose connections it is necessary to carry out a thorough visual inspection of the intake valve control solenoid and its components. 
  • Solenoid Testing: The technician will test the intake valve control solenoid for proper operation using a multimeter or specialized tools.
  • Circuit Testing: The wiring and circuitry associated with the solenoid will be examined for continuity, shorts, or open circuits. 
  • ECM analysis: in order to determine whether there are any further issues contributing to the activation of a code, it will be necessary to analyze its data.

Common mistakes

Common errors that could lead to unnecessary repair or misdiagnosis should be avoided when handling the P0075 code: 

  • Neglecting essential checks: Before performing more detailed diagnostics, fundamental checks should be carried out to ensure correct connections and inspections for broken wires.
  • Ignoring related codes: valuable information about the underlying problem can be obtained by way of related codes stored in the ECM. Failure to address these codes may result in incomplete repairs. 
  • Skipping OEM recommendations: In order to be able to ensure that the P0075 code is accurately and effectively resolved, it is essential to comply with the manufacturer’s instructions in diagnostic procedures, repair, or replacement of parts.

How serious is this?

The specific circumstances and the design of the vehicle are largely to blame for the seriousness of the P0075 code. If this is not addressed, engine performance may decrease, fuel consumption may be reduced and possible damage to the rest of the engine components could occur. It is recommended that the Code be dealt with without delay in order to avoid any further complications.

What repairs can fix the code?

repair manuals

After the P0075 code has been identified as a root cause, it may need to be repaired according to these instructions: 

  • Intake Valve Control Solenoid Replacement: If the solenoid is faulty or malfunctioning, replacing it with a new, reliable solenoid should resolve the control circuit issue.
  • In order to restore a properly functioning solenoid control circuit, it is necessary to repair or replace damaged or corroded wires, make sure that the connections are correct, and replace the wire harness. 
  • ECM replacement or repair: The computer may need to be repaired or replaced in rare cases where it is causing the problem.

Related codes

There are several related codes that may be associated with the P0075 code, including:

  • P0076: Intake Valve Control Solenoid Circuit Low Bank 1
  • P0077: Intake Valve Control Solenoid Circuit High Bank 1
  • P0078: Exhaust Valve Control Solenoid Circuit Bank 1

These related codes may provide additional insights into the underlying issue and assist in the diagnostic process.


It is imperative that you understand the P0075 DTC code with regard to Intake Valve Control Solenoid Circuit Bank 1 in order to diagnose and resolve your vehicle’s problems. You will have a greater ability to deal effectively with these codes by understanding their significance, causes, symptoms, diagnosis procedures, frequent mistakes, severity, possible repairs, and related codes.

If you encounter the P0075 code or suspect a problem with your intake valve control solenoid, consulting a professional automotive technician is recommended. In order to maximize engine performance and reliability, timely diagnosis and appropriate repair should be carried out.

P0075 Code – What Does It Mean & How To Fix It