C0817 - Power Steering Control Module (PSCM) Malfunction in Honda and Acura Models

Quick Answer

C0817 means: DTC C0817 indicates a malfunction in the Power Steering Control Module.

Fix: Check and replace faulty components Cost: $400 - $800 Time: 90-180 minutes

Can I drive with C0817? Immediate attention is recommended to prevent steering failure.

Common Questions

What does C0817 mean and how does it affect my car?

The C0817 code indicates a malfunction in your vehicle's Power Steering Control Module. This can lead to difficulty steering, particularly at low speeds, and may trigger warning lights on your dashboard. If left untreated, it can affect your safety and vehicle handling.

What are the most common causes of C0817 and how much does it cost to fix?

The most common causes include a faulty Power Steering Control Module, wiring issues, and low power steering fluid levels. Repair costs can range from $100 for wiring repairs to $800 for module replacement, depending on the issue.

Can I drive my car with C0817 or should I stop immediately?

While you may be able to drive your car, it is not recommended. Difficulty in steering can lead to unsafe driving conditions, especially in tight turns or parking situations. It's best to have the issue diagnosed and repaired as soon as possible.

How can I diagnose C0817 myself using GeekOBD APP?

To diagnose C0817 with the GeekOBD APP, plug in your OBD2 scanner, access the app, and retrieve diagnostic codes. Check for C0817 and any related codes, and examine freeze frame data for additional context on the fault.

What vehicles are most commonly affected by C0817?

Common vehicles affected by the C0817 code include various Honda and Acura models from 2006 to 2013, such as the Honda Accord and Acura TL. Check for recalls or technical service bulletins related to the power steering system.

How can I prevent C0817 from happening again?

Regular maintenance, including checking power steering fluid levels and inspecting wiring for damage, can help prevent the recurrence of C0817. Keeping your steering system clean and addressing issues promptly will extend its lifespan.

What is C0817?

DTC C0817 is a diagnostic trouble code indicating a malfunction in the Power Steering Control Module (PSCM). This code is commonly seen in various Honda and Acura models, particularly those manufactured between 2006 and 2013. When the PSCM detects an issue, it may trigger warning lights on the dashboard, such as the power steering warning light or the check engine light. In practical terms, this can lead to a stiff steering wheel or loss of power steering assistance, making it difficult to maneuver your vehicle, especially at low speeds. The PSCM is responsible for managing the power steering system, which provides assistance to the driver based on vehicle speed and steering input. If the PSCM is not functioning correctly, it can compromise your steering system's effectiveness, potentially leading to unsafe driving conditions. If you experience symptoms associated with a C0817 code, it’s crucial to address the issue promptly to maintain safe driving and avoid further damage to the steering system.

System: C - Chassis (ABS, Steering, Suspension)

Symptoms

Common symptoms when C0817 is present:

  • The power steering warning light illuminates on the dashboard, indicating a potential issue with the power steering system.
  • Drivers may notice the steering wheel becomes increasingly difficult to turn, especially when maneuvering at low speeds.
  • Some vehicles may experience intermittent loss of power steering assistance, leading to sudden changes in steering feel while driving.
  • In some cases, drivers report unusual noises coming from the steering system, such as whining or grinding sounds.
  • Fuel efficiency may decrease as the power steering system struggles to provide adequate assistance.

Possible Causes

Most common causes of C0817 (ordered by frequency):

  1. The most common cause of code C0817 is a faulty Power Steering Control Module, with a likelihood of about 60%. The PSCM can fail due to electrical issues, exposure to moisture, or internal component failure.
  2. A second cause could be a wiring issue, such as damaged or corroded connectors leading to poor communication between the PSCM and the steering system. This accounts for around 20% of cases.
  3. Another potential cause includes low power steering fluid levels, which can lead to overheating and strain on the PSCM. It is essential to regularly check fluid levels to prevent this issue.
  4. Less common but serious causes include a malfunctioning steering angle sensor, which can disrupt the PSCM's ability to provide the correct steering assistance.
  5. A rare cause could be an issue with the vehicle’s battery or charging system, affecting the power supply to the PSCM.

C0817 Repair Costs

Cost Breakdown by Repair Type

Power Steering Control Module Replacement

Replacing a faulty Power Steering Control Module with a new or refurbished unit.

  • Total: $400 - $800
  • Success rate: 85%
Wiring Repair

Repairing any damaged wires or connectors leading to the PSCM.

  • Total: $100 - $300
  • Success rate: 90%
Money-Saving Tips for C0817
  • Start with the most common and least expensive repairs first
  • Use GeekOBD APP to confirm diagnosis before replacing expensive parts
  • Consider preventive maintenance to avoid future occurrences
  • Compare prices for OEM vs aftermarket parts based on your needs
  • Address the issue promptly to prevent more expensive secondary damage

Diagnostic Steps

Professional C0817 Diagnosis Process

Follow these systematic steps to accurately diagnose C0817. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes)

Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 2: Step 2: OBD2 scan using the GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context (10-15 minutes)

Step 2: OBD2 scan using the GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context (10-15 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 3: Step 3: Component testing - Use a multimeter to test the voltage and ground signals at the PSCM connectors (20-30 minutes)

Step 3: Component testing - Use a multimeter to test the voltage and ground signals at the PSCM connectors (20-30 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 4: Step 4: System function test - Verify proper operation of the power steering system after repairs and clear codes (10-15 minutes)

Step 4: System function test - Verify proper operation of the power steering system after repairs and clear codes (10-15 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 5: Step 5: Road test verification - Drive the vehicle under various conditions to confirm the repair's success and ensure the steering operates smoothly (15-20 minutes)

Step 5: Road test verification - Drive the vehicle under various conditions to confirm the repair's success and ensure the steering operates smoothly (15-20 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.

Important Notes

  • Always verify the repair with GeekOBD APP after completing diagnostic steps
  • Clear codes and test drive to ensure the problem is resolved
  • Address underlying causes to prevent code recurrence

Real Repair Case Studies

Case Study 1: Power Steering Control Module Replacement in a 2008 Honda Accord

Vehicle: 2008 Honda Accord, 120,000 miles

Problem: The driver reported a stiff steering wheel and illuminated power steering warning light.

Diagnosis: After scanning the vehicle with the GeekOBD APP, the C0817 code was retrieved. A visual inspection revealed corrosion on the PSCM connectors.

Solution: The faulty Power Steering Control Module was replaced, and the connectors were cleaned and resealed.

Cost: $600 (including parts and labor)

Result: The steering returned to normal operation, and the warning light was cleared successfully.

Case Study 2: Wiring Repair on a 2010 Acura TL

Vehicle: 2010 Acura TL, 85,000 miles

Problem: The customer complained of intermittent loss of power steering assistance.

Diagnosis: Using the GeekOBD APP, the C0817 code was confirmed. A detailed inspection found damaged wiring leading to the PSCM.

Solution: The damaged wiring was repaired, and connections were fortified to prevent future issues.

Cost: $150 (for parts and labor)

Result: The vehicle regained full power steering function, and the customer reported no further issues.

Diagnose C0817

Use GeekOBD APP for professional diagnosis!

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  • Professional-grade analysis
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Code Information

Code: C0817
System: Chassis (ABS, Steering, Suspension)
Severity: HIGH
Category: Chassis Codes