P0806 - Clutch Position Sensor Circuit Range/Performance Problem in Common Vehicles

Quick Answer

P0806 means: P0806 indicates an issue with the clutch position sensor circuit performance.

Fix: Check and replace faulty components Cost: $150 - $300 Time: 90-180 minutes

Can I drive with P0806? Immediate attention is recommended to prevent further transmission damage.

Common Questions

What does P0806 mean and how does it affect my car?

The P0806 code indicates an issue with the clutch position sensor, which is essential for smooth gear shifting. If this sensor malfunctions, you may experience difficulties in changing gears, increased stalling, and even unsafe driving conditions. Ignoring this code can lead to further transmission damage, making timely repairs critical.

What are the most common causes of P0806 and how much does it cost to fix?

Common causes of P0806 include a faulty clutch position sensor, damaged wiring, and ECM issues. Repair costs vary but typically range from $150 to $300 for sensor replacement, while wiring repairs may cost between $50 and $150.

Can I drive my car with P0806 or should I stop immediately?

It's advisable to stop driving if you see the P0806 code. Continuing to operate the vehicle could lead to serious transmission problems or safety hazards due to potential stalling or gear shifting issues.

How can I diagnose P0806 myself using GeekOBD APP?

Using the GeekOBD APP, you can start by scanning for trouble codes and reviewing freeze frame data. Check the live data stream for the clutch position sensor to see if it operates within the expected values. This will help you determine if the sensor or its wiring is the issue.

What vehicles are most commonly affected by P0806?

Vehicles particularly affected by P0806 include the 2006-2011 Ford Fusion, 2009-2015 Honda Accord, and 2007-2013 Chevrolet Malibu. Always check for any recalls or Technical Service Bulletins (TSBs) related to these models.

How can I prevent P0806 from happening again?

To prevent P0806, ensure regular maintenance of your vehicle, including inspections of the clutch system and wiring. Keeping the vehicle clean and free of debris can also help maintain sensor functionality.

What is P0806?

The P0806 diagnostic trouble code (DTC) indicates a problem with the clutch position sensor circuit, specifically related to its range or performance. This sensor plays a crucial role in modern vehicles, especially those equipped with manual transmissions. It informs the Engine Control Module (ECM) about the position of the clutch pedal, ensuring that the vehicle operates smoothly during gear changes. When the ECM detects that the input from the clutch position sensor is out of the expected range or performance threshold, it triggers the P0806 code. This can lead to various issues including difficulty in shifting gears, unexpected engine behavior, or even stalling in severe cases. Common vehicles affected by this issue include models from Ford, Honda, and Chevrolet, particularly those manufactured in the mid-2000s to early 2010s. If left unaddressed, the problem can lead to more serious transmission issues and can compromise vehicle safety. Therefore, understanding this code is essential for timely repairs and reliable vehicle operation.

System: P - Powertrain (Engine, Transmission, Emissions)

Symptoms

Common symptoms when P0806 is present:

  • The check engine light is illuminated on the dashboard, indicating an existing fault.
  • Drivers may experience difficulty shifting gears, particularly when trying to engage the clutch.
  • Engine stalling can occur when the clutch is engaged or disengaged, causing unsafe driving conditions.
  • Unusual noises, such as grinding or clunking, may arise during gear changes or clutch operation.
  • Increased fuel consumption may be noted due to improper gear shifting, leading to inefficient engine performance.

Possible Causes

Most common causes of P0806 (ordered by frequency):

  1. The most common cause of P0806 is a faulty clutch position sensor, which occurs in about 60% of cases. This sensor can wear out or fail due to exposure to heat and vibration.
  2. Another frequent cause is damaged wiring or connections in the clutch position sensor circuit, making up around 25% of the issues. Corrosion or frayed wires can lead to intermittent signals.
  3. A problem with the ECM or software glitches may also trigger this code, accounting for about 10% of occurrences. Regular software updates can help prevent this.
  4. Less commonly, a malfunctioning clutch assembly can cause the sensor to give inaccurate readings, potentially affecting clutch engagement.
  5. In rare cases, issues with the transmission control module (TCM) can result in a similar error, requiring advanced diagnostics to identify.

P0806 Repair Costs

Cost Breakdown by Repair Type

Clutch Position Sensor Replacement

Replacing the faulty clutch position sensor can resolve the P0806 code effectively.

  • Total: $150 - $300
  • Success rate: 90%
Wiring Repair

Fixing damaged wiring or connectors in the sensor circuit.

  • Total: $50 - $150
  • Success rate: 80%
Money-Saving Tips for P0806
  • 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 P0806 Diagnosis Process

Follow these systematic steps to accurately diagnose P0806. 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 in the clutch position sensor circuit (5-10 minutes)

Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion in the clutch position sensor circuit (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 with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context and conditions under which it occurred (10-15 minutes)

Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context and conditions under which it occurred (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 resistance of the clutch position sensor; compare results with manufacturer specifications (20-30 minutes)

Step 3: Component testing - Use a multimeter to test the voltage and resistance of the clutch position sensor; compare results with manufacturer specifications (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 - If repairs are made, verify proper operation before clearing codes and retesting; check for any additional fault codes (10-15 minutes)

Step 4: System function test - If repairs are made, verify proper operation before clearing codes and retesting; check for any additional fault 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 ensure the clutch operates smoothly and no additional codes appear (15-20 minutes)

Step 5: Road test verification - Drive the vehicle under various conditions to ensure the clutch operates smoothly and no additional codes appear (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: Clutch Position Sensor Replacement on a 2009 Ford Fusion

Vehicle: 2009 Ford Fusion, 85,000 miles

Problem: Customer reported difficulty shifting gears and an illuminated check engine light.

Diagnosis: OBD2 scan revealed P0806. Visual inspection showed a frayed wire in the clutch position sensor circuit.

Solution: Replaced the clutch position sensor and repaired the damaged wiring.

Cost: $250 (sensor: $150, labor: $100)

Result: After the repair, the vehicle shifted smoothly and the check engine light was cleared.

Case Study 2: Wiring Repair on a 2012 Honda Accord

Vehicle: 2012 Honda Accord, 70,000 miles

Problem: Driver experienced intermittent stalling and poor gear engagement.

Diagnosis: P0806 was detected through the GeekOBD APP, and wiring issues were suspected.

Solution: Repaired the damaged wiring in the clutch position sensor circuit.

Cost: $80 (labor included)

Result: The stalling issue was resolved, and the vehicle operated normally after the fix.

Diagnose P0806

Use GeekOBD APP for professional diagnosis!

  • Real-time data monitoring
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  • Step-by-step repair guidance
  • Professional-grade analysis
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Code Information

Code: P0806
System: Powertrain (Engine, Transmission, Emissions)
Severity: HIGH
Category: Engine Codes