Description of the P0582 fault code.
OBD2 Error Codes

P0582 Cruise control vacuum control circuit open

26.05.2022 /

P0582 – OBD-II Trouble Code Technical Description

Trouble code P0582 indicates that the vehicle's computer has detected an open circuit in the cruise control vacuum control solenoid valve circuit.

What does the fault code mean P0582?

Trouble code P0582 indicates an open circuit in the vehicle's cruise control system vacuum control solenoid valve circuit. This means that the control engine module (PCM) has detected a problem in the electrical circuit that controls the valve that regulates the vacuum to operate the cruise control system. If the engine control module (PCM) detects that the vehicle can no longer automatically maintain its speed, it will perform a self-test of the entire cruise control system. If a malfunction is detected, the PCM will disable the cruise control system and this error code will appear on the instrument panel.

Fault code P0582.

Possible reasons

Possible reasons for DTC P0582 may include the following:

  • Break in the wiring: The wiring connecting the vacuum control solenoid valve to the engine control module (PCM) may be open or damaged.
  • Damage to the solenoid valve: The valve itself may be damaged or malfunctioning, causing the cruise control system to not operate properly.
  • Problems with PCM: A fault in the engine control module (PCM) itself can also cause P0582.
  • Poor connections or corrosion: Poor connections or corrosion at the connectors between the valve and the wiring, and between the wiring and the PCM, may cause improper operation and cause an error.
  • Mechanical damage to the vacuum system: Damage or leaks in the vacuum system through which the valve is controlled may also be causing the problem.
  • Problems with other cruise control components: Malfunctions in other components of the cruise control system, such as speed sensors or brake switches, can also cause P0582.

To accurately determine the cause, it is recommended to diagnose the cruise control system using diagnostic equipment and, if necessary, check each of the above components.

What are the symptoms of a fault code? P0582?


Symptoms for DTC P0582:

  1. Cruise control system failure: When the PCM detects a problem with the vacuum control solenoid valve, the cruise control system may stop functioning, resulting in an inability to set or maintain the set speed.
  2. Inactive cruise control mode: It is possible that the cruise control system will turn off or not activate at all due to an error being detected.
  3. Check Engine Light: The appearance of the Check Engine light on your dashboard may be one of the first signs of a problem with the cruise control system, including trouble code P0582.
  4. Unstable speed: If the cruise control system is disabled due to P0582, the driver may notice that the vehicle's speed becomes less stable when trying to maintain a constant speed on the road.
  5. Deteriorating fuel economy: Speed ​​instability and improper operation of the cruise control system can result in increased fuel consumption as the vehicle cannot effectively control its speed.

If you experience any of these symptoms or suspect a problem with your cruise control system, it is recommended that you contact a qualified technician for diagnosis and repair.

How to diagnose a fault code P0582?

The following procedure is recommended to diagnose DTC P0582:

  1. Checking Error Codes: Use a diagnostic scan tool to read all error codes from the engine control module (PCM) memory. Check to see if there are other related error codes besides P0582 that may provide additional information about the problem.
  2. Visual inspection of wiring and valve: Inspect the wiring connecting the vacuum control solenoid valve to the PCM for damage, breaks, or corrosion. Check the valve itself for damage.
  3. Using a multimeter: Use a multimeter to check the resistance at the valve wiring and valve contacts. Make sure the resistance meets the manufacturer's specifications.
  4. Checking power and grounding: Make sure the valve is receiving power and ground when the cruise control system is operating. Check the voltage at the corresponding pins using a multimeter.
  5. Checking the valve for functionality: Check whether the solenoid valve is activated when the cruise control is turned on. This can be done using a tester or test lead.
  6. Additional checks: Check the vacuum hoses and connections of the vacuum system for leaks or damage, as this can also cause the P0582 code.
  7. PCM diagnostics: If all other components check and are OK, the problem may be with the Engine Control Module (PCM) itself. In this case, additional PCM testing and diagnostics may be required to identify the problem.
  8. Clearing the error code: After correcting the problem and making any necessary repairs, use a diagnostic scanner to clear the error code from the PCM memory.

In case of difficulties or lack of experience in diagnosing automotive systems, it is recommended to contact a qualified auto mechanic or service center.

Diagnostic errors

When diagnosing DTC P0582, the following errors may occur:

  • Incorrect interpretation of error code: An unqualified technician may misinterpret the meaning of the P0582 code and draw incorrect conclusions about the cause of the problem.
  • Skipping Wiring and Contact Checks: Failure to thoroughly check wiring and contacts may result in the problem being incorrectly detected or missing breaks or corrosion.
  • Incorrect solenoid valve check: If the solenoid valve is not properly tested, it may lead to incorrect conclusions about its condition and operation.
  • Failure to check other components: It should also be taken into account that the problem may not only be caused by the solenoid valve, but also by other components of the cruise control system. Skipping this test may result in an incomplete diagnosis of the problem.
  • Misunderstanding of test results: Misunderstanding of test results, such as resistance or voltage measurements, can lead to erroneous conclusions about component conditions and faults.

To avoid these mistakes, it is important to contact experienced and qualified technicians who have experience in diagnosing and repairing vehicles.

How serious is the fault code? P0582?

Trouble code P0582 is not a safety code, but may cause the cruise control system to become unavailable or not operate properly. However, using cruise control while this error is active may be unsafe due to the potential inability to control the vehicle speed.

Although this problem does not pose an immediate threat to life or limb, it can lead to poor driving comfort and, in some cases, increased fuel consumption. In addition, improper operation of the cruise control system can lead to driver fatigue and increase the risk of accidents.

Therefore, it is recommended that you take action to correct the problem as soon as possible by contacting qualified automotive service technicians.

What repair will help eliminate the code? P0582?

To resolve DTC P0582, the following steps are recommended:

  1. Vacuum Control Solenoid Valve Replacement: If the check reveals a malfunction in the valve itself, it should be replaced with a new, serviceable copy.
  2. Repair or replacement of wiring: If any breaks, damage, or corrosion are found in the wiring connecting the valve to the control engine module (PCM), the wiring should be repaired or replaced.
  3. Checking and repairing other components of the cruise control system: Check other cruise control system components such as brake switches, speed sensors and actuators to ensure they are operating properly. If necessary, they must be replaced or repaired.
  4. Diagnose and, if necessary, replace the PCM: If the problem is not a valve or wiring issue, the problem may be in the engine control module (PCM). In this case, additional diagnostics and, if necessary, replacement of the PCM may be required.
  5. Clearing the error code: After all necessary repairs have been completed, the error code should be cleared from the PCM memory using a diagnostic scan tool.

It is important to have the problem diagnosed and repaired by a qualified auto mechanic or service center as this may require special tools and experience.

What is P0582 Engine Code [Quick Guide]

P0582 – Brand-specific information

Trouble code P0582 is associated with the vehicle's cruise control system vacuum control solenoid valve, and has codes for several specific brands:

This is just a general summary and details may vary slightly depending on the specific model and year of the vehicle. For accurate information, it is recommended to consult the manufacturer's official documentation or qualified personnel.

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