[SOLVED] P2684 Code: How To Fix Actuator Supply Voltage Circuit/Open

The P2684 automobile fault code indicates a problem with the transmission solenoids or the Powertrain Control Module (PCM). The most common symptom is the Engine Light ON or Service Engine Soon Warning Light.

The cause of this fault code could be a faulty transmission solenoid, an open or shorted solenoid harness, a poor electrical connection in the solenoid circuit, or a faulty PCM. The importance of repairing this issue lies in the fact that it can affect the performance of the transmission and lead to further damage. The repair difficulty is moderate, and the repair time is estimated at 1.0 hour.

To fix the issue, one should visually inspect the related wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

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

If you notice the Engine Light ON (or Service Engine Soon Warning Light), it could be due to the p2684 fault code.

Here are the symptoms to look out for:

  • The P2684 fault code in an automobile can cause several symptoms, including the engine light turning on or the service engine soon warning light appearing.
  • Other symptoms may include a decrease in engine power, rough idling, stalling, and difficulty starting the engine.
  • Additionally, the vehicle may experience poor fuel economy, reduced acceleration, and increased emissions.
  • It is important to address these symptoms promptly to prevent further damage to the vehicle and ensure safe driving conditions.

The automobile fault code P2684 can be caused by a range of issues, including faulty transmission solenoids and a faulty Powertrain Control Module (PCM).

  • The automobile fault code P2684 can be caused by several factors.
  • These include faulty transmission solenoids, an open or shorted transmission solenoid harness, a poor electrical connection in the transmission solenoid circuit, and a faulty Powertrain Control Module (PCM).
  • It is important to identify and address these causes promptly to prevent further damage to the vehicle.

To fix the p2684 fault code, check the possible causes and inspect related wiring harness and connectors for damage or corrosion.

  • To fix the automobile fault code P2684, you need to check the possible causes listed above.
  • Visually inspect the related wiring harness and connectors for any damage.
  • Look for broken, bent, pushed out, or corroded connector’s pins.
  • This fix will take an estimated repair time of 1.0 hour.

The automobile fault code P2684 can be diagnosed and fixed within an estimated repair time of 1.0 hour.

The cost of repair is influenced by the hourly rate charged by the auto repair shop, which typically ranges between $75 and $150 per hour. Therefore, the total cost of diagnosis and fixing the P2684 fault code will depend on the hourly rate charged by the auto repair shop and the estimated repair time required to fix the issue.

The P2684 fault code is related to the transmission solenoid circuits. The Powertrain Control Module (PCM) monitors these circuits by supplying voltage to the solenoids and checking for voltage returning from them. If the voltage returning from the solenoids through the control wires is incorrect, the PCM will set a code for that solenoid.

The P2684 code specifically refers to the Actuator Supply Voltage ‘C’ CircuitO.

What are the possible causes of the automobile fault code P2684?

If you’re experiencing the engine light ON or Service Engine Soon Warning Light with the fault code P2684, it could be due to faulty transmission solenoids, an open or shorted transmission solenoids harness, a poor electrical connection in the transmission solenoids circuit, or a faulty Powertrain Control Module (PCM). To fix this issue, you should check the possible causes listed above, visually inspect the related wiring harness and connectors, and look for damaged components and broken, bent, pushed out, or corroded connector’s pins.

How can one visually inspect the related wiring harness and connectors to fix the P2684 fault code?

If you’re experiencing an Engine Light ON or Service Engine Soon Warning Light due to a P2684 fault code, there are a few possible causes to consider. These include faulty transmission solenoids, an open or shorted transmission solenoids harness, poor electrical connection in the transmission solenoids circuit, or a faulty Powertrain Control Module (PCM). To fix the issue, start by visually inspecting the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector’s pins.

Is a faulty Powertrain Control Module (PCM) a common cause of the P2684 fault code?

While a faulty Powertrain Control Module (PCM) is listed as a possible cause of the P2684 fault code, it is not a common cause. The most common cause of this code is faulty transmission solenoids, an open or shorted solenoid harness, or poor electrical connections in the solenoid circuit. To fix the issue, it is recommended to visually inspect the wiring harness and connectors for any damage or corrosion, and check for broken or bent pins.

p2684 error fault code explained

If your engine light is on, it could be due to faulty transmission solenoids, an open or shorted harness, poor electrical connection, or a faulty PCM.

Check the possible causes, inspect wiring and connectors, and look for damaged components or corroded pins.

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