[SOLVED] P0499 Code: Fix High Control Circuit For Evaporative Emission System Vent Valve

The automobile fault code P0499 indicates a problem with the Evaporative Emission Vent Solenoid Valve. The symptoms may include an illuminated check engine light and possible issues with the vehicle’s emissions system. The cause of this fault code could be a faulty solenoid valve, an open or shorted harness, poor electrical connections, or a malfunctioning Engine Control Module (ECM).

To fix this issue, it is recommended to visually inspect the wiring harness and connectors for any damage, and check for broken, bent, pushed out, or corroded pins in the connectors. The repair time for this issue is estimated to be around 1.0 hour. It is important to address this fault code promptly to ensure proper functioning of the vehicle’s emissions system.

Repair Importance Level3.33 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

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Experiencing reduced engine power, increased fuel consumption, and a check engine light? Here are the symptoms of fault code p0499.

  • The symptoms of the automobile fault code P0499 include: 1.
  • Check Engine Light (CEL) illuminated 2.
  • Decreased engine performance 3.
  • Engine overheating 4.
  • Poor fuel efficiency 5.
  • Unusual noise coming from the engine 6.
  • Smell of burning rubber or coolant 7.
  • Engine stalling or misfiring 8.
  • Difficulty starting the vehicle 9.
  • Increased emissions 10.
  • Reduced air conditioning performance.

The automobile fault code p0499 can be caused by a faulty Evaporative Emission Vent Solenoid Valve, an open or shorted harness, a poor electrical circuit connection, or a faulty Engine Control Module (ECM).

  • The fault code P0499 can be caused by a faulty Evaporative Emission Vent Solenoid Valve, an open or shorted harness for the solenoid valve, a poor electrical circuit connection for the solenoid valve, or a faulty Engine Control Module (ECM).

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To fix the p0499 fault code, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p0499, start by checking the possible causes mentioned above.
  • Then, visually inspect the wiring harness and connectors related to the issue.
  • Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins.
  • This fix typically takes around 1.0 hour to complete.

The factors influencing the diagnosis and fixing cost of the automobile fault code p0499 are the estimated repair time of 1.0 hour and the typical auto repair shop charges of $75 to $150 per hour.

When you see the Engine Light ON or the Service Engine Soon Warning Light, it could be due to the fault code P0499.

This code indicates a problem with the evaporative emission system, specifically the vent solenoid control circuit. The evaporative emission system is responsible for preventing fuel vapors from escaping into the atmosphere.

The P0499 fault code means that there is a malfunction in the vent solenoid control circuit, which controls the flow of fuel vapors from the fuel tank to the charcoal canister. This can lead to increased emissions and can also affect the overall performance of your vehicle.

To fix this issue, you will need to diagnose the vent solenoid control circuit to determine the exact cause of the problem. It could be a faulty vent solenoid, a wiring issue, or a problem with the PCM (Powertrain Control Module). Once the cause is identified, the necessary repairs or replacements can be made to resolve the P0499 fault code and get your vehicle back in optimal condition.

What are the possible causes of fault code P0499 in an automobile?

The fault code P0499 in an automobile can be caused by a few different factors. One possible cause is a faulty Evaporative Emission Vent Solenoid Valve. Another potential cause is an open or shorted harness for the solenoid valve. Additionally, a poor electrical circuit connection to the solenoid valve can also trigger this fault code. Lastly, a faulty Engine Control Module (ECM) can be the culprit. To fix this issue, it is recommended to visually inspect the wiring harness and connectors, checking for any damage or corrosion. It is also important to examine the connector’s pins for any signs of breakage, bending, or pushing out.

How can I visually inspect the wiring harness and connectors to fix fault code P0499?

To fix fault code P0499, start by visually inspecting the wiring harness and connectors. Look for any damaged components and check if there are any broken, bent, pushed out, or corroded pins in the connectors. This will help identify any issues with the Evaporative Emission Vent Solenoid Valve or the Engine Control Module (ECM). Make sure to also check for any open or shorted circuits or poor electrical connections. By conducting this thorough inspection, you can pinpoint the cause of the fault code and proceed with the necessary repairs.

What should I look for when checking for damaged components and connector pins to resolve fault code P0499?

To resolve fault code P0499, start by visually inspecting the wiring harness and connectors. Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins. This will help identify any issues with the Evaporative Emission Vent Solenoid Valve or its electrical circuit. Additionally, make sure to check the Engine Control Module (ECM) for any faults. By thoroughly examining these possible causes, you can effectively diagnose and fix the problem.

p0499 error fault code explained

To fix the P0499 fault code, start by visually inspecting the wiring harness and connectors. Look for any damage or corrosion.

Check the Evaporative Emission Vent Solenoid Valve for any issues.

Also, ensure that the Engine Control Module (ECM) is functioning properly.

Take action to address any faults found.

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