[SOLVED] P171A Code: Fix Transmission Fluid Pressure With Solenoid Valve Control

The automobile fault code P171A indicates a problem with the Automatic Transmission Accumulator Solenoid Valve. This can cause the Engine Light to turn on or the Service Engine Soon Warning Light to illuminate. The possible causes include a faulty solenoid valve, an open or shorted harness, poor electrical connection, or a faulty HybridEV Powertrain Control Module.

To fix this issue, you should visually inspect the wiring harness and connectors for any damage. Look for broken, bent, pushed out, or corroded pins on the connectors. The repair time for this issue is estimated to be around 1.0.

It is important to address this problem promptly to prevent further damage to the transmission.

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 p171a fault code.

  • The symptoms of the automobile fault code P171A include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p171a can be caused by a faulty automatic transmission accumulator solenoid valve, open or shorted harness, poor electrical connection in the solenoid valve circuit, or a faulty hybridEV powertrain control module 1.

  • The fault code P171A can be caused by the following: 1.
  • Faulty Automatic Transmission Accumulator Solenoid Valve.
  • 2.
  • Open or shorted harness of the Automatic Transmission Accumulator Solenoid Valve.
  • 3.
  • Poor electrical connection in the circuit of the Automatic Transmission Accumulator Solenoid Valve.
  • 4.
  • Faulty Hybrid/EV Powertrain Control Module 1.

To fix the automobile fault code p171a, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code P171A, follow these steps: 1.
  • Check the possible causes mentioned above.
  • 2.
  • Visually inspect the wiring harness and connectors related to the fault code.
  • 3.
  • Look for any damaged components.
  • 4.
  • Check for broken, bent, pushed out, or corroded pins in the connectors.
  • The estimated repair time for this fix is 1.0 hour.

The factors influencing the cost of diagnosing and fixing the automobile fault code p171a are the estimated repair time of 1.0 hour and the typical auto repair shop charges of $75 to $150 per hour.

The P171A fault code refers to a problem with the transmission fluid pressure accumulator solenoid valve control circuit. This solenoid valve is responsible for controlling the charging and discharge of the accumulator pressure in the automatic transmission auxiliary fluid system.

The HybridEV Powertrain Control Module 1 is in charge of controlling this solenoid valve by providing the ground path to the control circuit. However, if the control module detects an open circuit on the transmission surge solenoid circuit for 1 second, it will trigger the P171A fault code. This fault code indicates that there is an issue with the control circuit of the transmission fluid pressure accumulator solenoid valve.

It is important to address this problem promptly to ensure proper functioning of the transmission system and avoid potential damage.

What are the possible causes of the p171a fault code and how can they be identified?

If you’re experiencing the dreaded P171A fault code, indicated by the Engine Light or Service Engine Soon Warning Light, there are a few possible causes to consider. It could be a faulty Automatic Transmission Accumulator Solenoid Valve, an open or shorted harness, a poor electrical connection in the valve circuit, or even a faulty Hybrid/EV Powertrain Control Module 1. To identify the exact cause, visually inspect the wiring harness and connectors, checking for any damage or corrosion. Additionally, look out for broken, bent, pushed out, or corroded pins in the connectors. Don’t forget to check the “Possible Causes” listed above for a comprehensive diagnosis.

How can I visually inspect the wiring harness and connectors to fix the p171a fault code?

If you’re dealing with the P171A fault code and notice that your engine light is on, it’s time to take action. The most common cause of this issue is a faulty Automatic Transmission Accumulator Solenoid Valve or a poor electrical connection in the valve’s circuit. To fix it, start by visually inspecting the wiring harness and connectors. Look for any signs of damage, such as broken or bent pins, corrosion, or components that are out of place. This simple step can help you identify and resolve the issue quickly.

What should I look for when checking for damaged components and connector pins to resolve the p171a fault code?

If you’re dealing with the P171A fault code and your engine light is on, it’s time to roll up your sleeves and get to work. The culprit could be a faulty Automatic Transmission Accumulator Solenoid Valve or a poor electrical connection in the valve’s circuit. To fix it, start by visually inspecting the wiring harness and connectors. Keep an eye out for any damaged components and check for broken, bent, pushed out, or corroded connector pins. Don’t let this issue linger – take action now to get your engine running smoothly again.

p171a error fault code explained

To fix the P171A fault code, start by visually inspecting the wiring harness and connectors.

Look for any damage or corrosion. Check the Automatic Transmission Accumulator Solenoid Valve and its circuit for any issues. If necessary, replace the faulty valve or repair any electrical connections.

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