[SOLVED] P0999 Code: Fixing High Control Circuit In Shift Solenoid ‘f’

The automobile fault code P0999 indicates a problem with the Shift Solenoid ‘F’ in the vehicle’s transmission system. The most common symptom is the Engine Light being ON or the Service Engine Soon Warning Light. This fault code can be caused by a faulty Shift Solenoid ‘F’, an open or shorted harness, or a poor electrical connection in the Shift Solenoid ‘F’ circuit.

To fix this issue, it is recommended to visually inspect the wiring harness and connectors for any damage.

Additionally, 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 transmission system.

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

When the engine light is on or the service engine soon warning light is illuminated, it could be a sign of the p0999 fault code.

  • The symptoms of the automobile fault code p0999 include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p0999 can be caused by a faulty Shift Solenoid ‘F’, an open or shorted Shift Solenoid ‘F’ harness, or a poor electrical connection in the Shift Solenoid ‘F’ circuit.

  • The fault code P0999 can be caused by the following: a faulty Shift Solenoid ‘F’, an open or shorted Shift Solenoid ‘F’ harness, and a poor electrical connection in the Shift Solenoid ‘F’ circuit.

To fix the automobile fault code p0999, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p0999, 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 if there are any broken, bent, pushed out, or corroded pins in the connectors.
  • This fix is estimated to take approximately 1.0 hour.

The factors influencing the diagnosis and fixing cost of the automobile fault code p0999 are the estimated repair time and the hourly rate charged by auto repair shops. The estimated repair time for this fault code is 1.0 hour. Auto repair shops typically charge between $75 and $150 per hour for their services.

These factors will determine the overall cost of diagnosing and fixing the p0999 fault code.

The P0999 fault code refers to a problem with the Shift Solenoid ‘F’ Control Circuit in the transmission of your vehicle.

The Transmission Control Module (TCM) is responsible for monitoring the signal from the Shift Solenoid. When the TCM detects that the Shift Solenoid is not operating within the factory specifications, it triggers the P0999 code.

This code indicates that there is a high voltage condition in the control circuit of the Shift Solenoid ‘F’. It is important to address this issue promptly to ensure proper functioning of the transmission and avoid potential damage.

What are the possible causes for the automobile fault code P0999?

If you see the engine light or service engine soon warning light on, the fault code P0999 could be the culprit. This code is often caused by a faulty shift solenoid ‘F’, an open or shorted shift solenoid ‘F’ harness, or a poor electrical connection in the shift solenoid ‘F’ circuit. To fix this issue, 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. Don’t forget to check the possible causes listed above for a comprehensive solution.

How can I visually inspect the wiring harness and connectors to fix the issue?

To fix the issue of the Engine Light being ON or the Service Engine Soon Warning Light, start by visually inspecting the wiring harness and connectors. This can help identify the cause, which could be a faulty Shift Solenoid ‘F’, an open or shorted Shift Solenoid ‘F’ harness, or a poor electrical connection in the Shift Solenoid ‘F’ circuit. Check for any damaged components and look closely for broken, bent, pushed out, or corroded pins in the connectors. This thorough inspection can help pinpoint the problem and guide you towards the appropriate fix.

What should I look for when checking for damaged components or corroded connector pins?

When troubleshooting a symptom like the Engine Light ON, it’s important to check for damaged components or corroded connector pins. In this case, the possible cause could be a faulty Shift Solenoid ‘F’ or issues with the wiring harness and connectors. To fix it, visually inspect the related wiring harness and connectors, paying attention to any broken, bent, pushed out, or corroded pins. This step can help identify and resolve the issue effectively.

p0999 error fault code explained

If your engine light is on and you’re seeing the P0999 fault code, it could be due to a faulty Shift Solenoid ‘F’, an open or shorted Shift Solenoid ‘F’ harness, or a poor electrical connection in the Shift Solenoid ‘F’ circuit.

To fix this issue, visually inspect the wiring harness and connectors, check for damaged components, and look for any broken, bent, pushed out, or corroded connector pins.

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