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OBD Code P0808

Clutch Position Sensor Circuit High

CodeP0808
DescriptionClutch Position Sensor Circuit High
Possible CausesOpen circuit|Faulty sensor
SymptomsClutch always reads disengaged
SystemTransmission

What Does P0808 Mean?

Clutch Position Sensor Circuit High. This diagnostic trouble code (DTC) is stored when the vehicle's onboard computer detects an issue with the transmission.

Code Breakdown

P = Powertrain code

0 = Generic (SAE standard)

How to Fix P0808

Follow these diagnostic steps to identify and resolve the issue. Always start with the simplest checks before moving to more involved repairs.

  1. Check the clutch pedal position sensor (if equipped) and adjust if necessary.
  2. Inspect the clutch hydraulic system for leaks (master and slave cylinder).
  3. Check clutch fluid level in the reservoir.
  4. If the clutch slips under load, the clutch disc is likely worn and needs replacement.
  5. Inspect the clutch release bearing for noise or play.
  6. Clear codes and test clutch engagement in all gears.

Note: These are general diagnostic guidelines. Some vehicles may have model-specific procedures. Always consult your vehicle's service manual for exact specifications and torque values. If you are not comfortable performing these steps, visit a qualified mechanic.

Frequently Asked Questions

Is P0808 serious?

The severity depends on the underlying cause. Some triggers for P0808 are minor (like a loose gas cap), while others may indicate a more significant problem. We recommend having the code diagnosed with a proper scan tool to determine the exact cause before deciding on urgency.

Can I clear P0808 myself?

You can clear any OBD-II code with a code scanner or by disconnecting the battery for 15-30 minutes. However, clearing the code without fixing the underlying problem will cause it to return — usually within one or two drive cycles. If the code triggered the check engine light, the light will come back on. Fix the root cause first, then clear the code.

How much does it cost to fix P0808?

Repair costs vary widely depending on the root cause. Some fixes are free (like tightening a gas cap) while others can cost several hundred dollars (like replacing a catalytic converter or oxygen sensor). A proper diagnosis with a professional scan tool — not just reading the code — is the first step to getting an accurate repair estimate. Many auto parts stores offer free code reading, but a thorough diagnosis usually requires a mechanic.

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