[SOLVED] P0979 Code: Fixing Low Shift Solenoid ‘c’ Control Circuit

The automobile fault code P0979 indicates a problem with the Shift Solenoid ‘C’ in the transmission.

This can cause symptoms such as the engine light being on, a lack or loss of power, and shifting problems.

The cause of this fault code could be a faulty Shift Solenoid ‘C’, an open or shorted harness, or a poor electrical connection in the Shift Solenoid ‘C’ circuit. To fix this issue, you should visually inspect the wiring harness and connectors, checking for any damage or corrosion.

It is important to address this problem promptly as it can affect the performance of your vehicle.

The repair time for this issue is estimated to be around 1.0 hour.

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

If you’re experiencing an illuminated engine light, power loss, and transmission issues, you may be dealing with fault code p0979.

  • The symptoms of the automobile fault code p0979 include: Engine Light ON (or Service Engine Soon Warning Light), Lack/Loss of power, and Transmission shifting problems.

The automobile fault code p0979 can be caused by a faulty Shift Solenoid ‘C’, an open or shorted Shift Solenoid ‘C’ harness, or a poor electrical connection in the Shift Solenoid ‘C’ circuit.

  • The fault code P0979 can be caused by the following: a faulty Shift Solenoid ‘C’, an open or shorted Shift Solenoid ‘C’ harness, and a poor electrical connection in the Shift Solenoid ‘C’ circuit.

To fix the automobile fault code p0979, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p0979, 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.
  • The estimated repair time for this fix is 1.0 hour.

The factors influencing the diagnosis and fixing cost of the automobile fault code p0979 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 p0979 fault code.

The P0979 fault code refers to a problem with the control circuit for shift solenoid ‘C’.

The Engine Control Module (ECM) is responsible for commanding gear shifts by turning the shift solenoid valves on and off.

When there is an open or short circuit in the shift solenoid valve circuit, the ECM detects the issue and triggers the engine light to illuminate. It also stores the Diagnostic Trouble Code (DTC) for reference. In response to the fault, the ECM activates the fail-safe function and turns the other shift solenoid valves that are in good condition on and off.

This fault code indicates a low control circuit voltage for shift solenoid ‘C’.

What are the symptoms of the automobile fault code p0979?

If you’re experiencing the fault code P0979 in your automobile, you may notice a few symptoms. The engine light or service engine soon warning light will be illuminated, indicating a problem. You may also experience a lack or loss of power, as well as transmission shifting problems. The most common cause of this fault code is a faulty shift solenoid ‘C’. It could also be due to an open or shorted shift solenoid ‘C’ harness or a poor electrical connection in the circuit. To fix the issue, visually inspect the wiring harness and connectors, checking for any damage or corrosion.

What could be the possible causes of the p0979 fault code?

If you’re experiencing an engine light on or a service engine soon warning light, along with a lack or loss of power and transmission shifting problems, the p0979 fault code may be the culprit. This code is typically caused by a faulty shift solenoid ‘C’, an open or shorted shift solenoid ‘C’ harness, or a poor electrical connection in the shift solenoid ‘C’ circuit. To fix this issue, visually inspect the wiring harness and connectors, checking for any damage or broken pins.

How can the p0979 fault code be fixed?

To fix the p0979 fault code, start by checking the possible causes mentioned above. Then, visually inspect the wiring harness and connectors related to the Shift Solenoid ‘C’. Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins. This will help identify any issues with the Shift Solenoid ‘C’ or its circuit.

p0979 error fault code explained

If you’re experiencing a lack of power, transmission shifting problems, and the engine light is on, it could be due to a faulty Shift Solenoid ‘C’. To fix this, visually inspect the wiring harness and connectors for any damage or corrosion. Check for broken or bent pins on the connectors.

Act now to prevent further issues.

Scroll to Top