P171C Buick Code - Transmission Fluid Pressure Accumulator Solenoid Valve Control Circuit High Voltage
Quick Answer
The automatic transmission auxiliary fluid accumulator is used to supply transmission fluid line pressure following an Autostop event. Common causes include Faulty Automatic Transmission Accumulator Solenoid Valve, Automatic Transmission Accumulator Solenoid Valve harness is open or shorted, Automatic Transmission Accumulator Solenoid Valve circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P171C Buick indicates Transmission Fluid Pressure Accumulator Solenoid Valve Control Circuit High Voltage.
- Common causes
- Common causes include Faulty Automatic Transmission Accumulator Solenoid Valve, Automatic Transmission Accumulator Solenoid Valve harness is open or shorted, Automatic Transmission Accumulator Solenoid Valve circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P171C Buick Description
What are the Possible Causes of the DTC P171C Buick?
- Faulty Automatic Transmission Accumulator Solenoid Valve
- Automatic Transmission Accumulator Solenoid Valve harness is open or shorted
- Automatic Transmission Accumulator Solenoid Valve circuit poor electrical connection
- Faulty Hybrid/EV Powertrain Control Module 1
How to Fix the DTC P171C Buick?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P171C Buick code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P171C Buick code?
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Frequently Asked Questions about P171C Buick Code
1. What are common symptoms of OBDII code P171C in a Buick related to the Transmission Fluid Pressure Accumulator Solenoid Valve Control Circuit High Voltage?
Symptoms may include harsh shifting, transmission slipping, erratic shifting patterns, and illuminated warning lights on the dashboard.
2. What are the possible causes of the P171C code in a Buick's transmission system?
Common causes include a faulty transmission fluid pressure accumulator solenoid valve, wiring issues, low transmission fluid levels, or a malfunctioning transmission control module.
3. How serious is the P171C code in a Buick and should it be addressed immediately?
The P171C code can lead to poor transmission performance and potential long-term damage if left unresolved. It is recommended to address the issue promptly to avoid further complications.
4. Can I continue driving my Buick with the P171C code present?
It is not advisable to continue driving the vehicle with the P171C code, as it can lead to further damage to the transmission system. It is best to have the issue diagnosed and repaired as soon as possible.
5. How can I diagnose and repair the P171C code in my Buick?
Diagnosis typically involves using a scan tool to retrieve the trouble code and then conducting further testing on the transmission fluid pressure accumulator solenoid valve and related components. Repair may involve replacing the faulty solenoid valve, addressing wiring issues, or servicing the transmission fluid.
6. Can I reset the P171C code in my Buick's OBDII system by disconnecting the battery?
While disconnecting the battery may clear the code temporarily, it is not a recommended long-term solution. The underlying issue causing the P171C code needs to be identified and resolved to prevent the code from reappearing.
7. Are there any DIY tips for addressing the P171C code in a Buick?
DIY tasks may include checking the transmission fluid level, inspecting for visible wiring damage, and ensuring proper connections to the solenoid valve. However, for accurate diagnosis and repair, it is best to consult a professional mechanic.
8. How much does it typically cost to repair the P171C code in a Buick?
The cost of repairing the P171C code can vary depending on the specific cause of the issue, the extent of the damage, and labor rates in your area. It is recommended to obtain quotes from reputable auto repair shops for an accurate estimate.
9. Can the P171C code be prevented in a Buick?
Regular maintenance of the transmission system, including checking transmission fluid levels, addressing any leaks promptly, and following the manufacturer's recommended service schedule, can help prevent issues that may trigger the P171C code.
10. Is the P171C code specific to Buick vehicles, or can it occur in other car makes and models?
While the OBDII code P171C is associated with Buick vehicles, similar transmission fluid pressure accumulator solenoid valve control circuit issues can occur in other car makes and models as well.
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