The P3477 fault code in automobiles indicates a problem with the Cylinder Deactivation Solenoid. The symptom is an illuminated Engine Light or Service Engine Soon Warning Light.

The cause could be low oil pressure, restricted oil passage, engine mechanical condition, faulty Cylinder Deactivation Solenoid, or poor electrical connection. The repair importance is high as it affects the engine’s performance and fuel efficiency.

The repair difficulty is moderate, and the fix involves visually inspecting the wiring harness and connectors for damage and checking for broken or corroded pins.

The repair time is estimated at 1.0 hour.

To interpret the fault code, one needs to check the possible causes listed above and visually inspect the related components.

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 a sign of p3477 fault code. Here are the symptoms to look out for:

  • The P3477 fault code in automobiles can cause several symptoms, including the engine light turning on or the service engine soon warning light appearing.
  • Other symptoms may include reduced engine power, engine misfires, rough idling, and decreased fuel efficiency.
  • Additionally, the vehicle may experience difficulty starting or stalling while driving.
  • It is important to address these symptoms promptly to prevent further damage to the vehicle and ensure safe driving conditions.

P3477 fault code can be caused by various factors such as low oil pressure, restricted oil passage, and faulty cylinder deactivation solenoid.

  • The automobile fault code P3477 can be caused by low oil pressure, restricted oil passage, engine mechanical condition, faulty Cylinder Deactivation Solenoid, Cylinder Deactivation Solenoid harness being open or shorted, and Cylinder Deactivation Solenoid circuit having poor electrical connection.

Below are some possible fixes for the automobile fault code p3477, including inspecting wiring harness and connectors for damage or corrosion.

  • To fix the automobile fault code p3477, 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 factors that influence the cost of diagnosing and fixing the automobile fault code P3477 include the estimated repair time, which is typically 1.0 hour. Additionally, most auto repair shops charge between $75 and $150 per hour for their services. These factors can significantly impact the overall cost of the repair, and it is essential to consider them when seeking out a mechanic or repair shop.

The P3477 code refers to the cylinder deactivation system in the engine. The system deactivates cylinders 1 and 7 on the left bank, and cylinders 4 and 6 on the right bank, switching to a V4 mode.

Cylinder deactivation is accomplished by not allowing the intake and exhaust valves to open on the selected cylinders by using special valve lifters.

Switching between V8 and V4 mode is accomplished in less than 250 milliseconds, making the transitions seamless and transparent to the vehicle operator.

The code specifically refers to an issue with the control circuit or operation of the exhaust valve on cylinder 10.

What are the possible causes of the automobile fault code P3477?

If you see the engine light on or service engine soon warning light, it could be due to the P3477 fault code. This code can be caused by low oil pressure, restricted oil passage, engine mechanical condition, faulty cylinder deactivation solenoid, cylinder deactivation solenoid harness being open or shorted, or cylinder deactivation solenoid circuit poor electrical connection. To fix this issue, check the possible causes listed above and visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector’s pins.

How can I visually inspect the related wiring harness and connectors to fix the P3477 fault code?

To fix the P3477 fault code, start by checking the possible causes listed above. Then, visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector’s pins. This will help you identify any issues with the Cylinder Deactivation Solenoid harness and circuit poor electrical connection.

What are the steps to take if I find damaged components or broken, bent, pushed out, or corroded connector’s pins while fixing the P3477 fault code?

If you find damaged components or broken, bent, pushed out, or corroded connector’s pins while fixing the P3477 fault code, follow these steps: visually inspect the related wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins. Check the “Possible Causes” listed above and fix any issues found. This will help resolve the low oil pressure, restricted oil passage, engine mechanical condition, faulty Cylinder Deactivation Solenoid, Cylinder Deactivation Solenoid harness is open or shorted, or Cylinder Deactivation Solenoid circuit poor electrical connection that may be causing the Engine Light ON (or Service Engine Soon Warning Light) symptom.

p3477 error fault code explained

If you see the Engine Light ON or Service Engine Soon Warning Light, it could be due to low oil pressure, restricted oil passage, or a faulty Cylinder Deactivation Solenoid. Check the possible causes listed above, visually inspect the wiring harness and connectors, and look for damaged components or corroded pins.

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