Skip the auto shop - Our mechanics make house calls
  1. Home
  2. Articles
  3. P0808 OBD-II Trouble Code: Clutch Position Sensor Circuit High Malfunction

P0808 OBD-II Trouble Code: Clutch Position Sensor Circuit High Malfunction

check engine light

P0808 code definition

When the PCM in your vehicle records a P0808 trouble code, it means that there is a problem with the clutch position sensor circuit.

What the P0808 code means

When this code is recorded, it is because the clutch start switch has failed to close, and the starter can not engage. This is only an issue with manual transmissions. If it appears in a vehicle that has an automatic transmission, then there is probably a programming error within the PCM.

Keep in mind that the PCM will not always detect a problem on the first go-round. Sometimes, a code will be stored without the Check Engine Light coming on. In fact, it may take several cycles for the PCM to activate the Check Engine Light, and some vehicles may not activate the Check Engine Light at all in response to a P808 code.

What causes the P0808 code?

Most of the time, this code ends up being stored because the clutch position sensor is either defective or maladjusted. Other causes include open, shorted, or corroded wiring or connectors.

What are the symptoms of the P0808 code?

There may be no symptoms at all. Or you could experience:

How does a mechanic diagnose the P0808 code?

Your mechanic will first use a code reader and an ohmmeter to find out what is causing the P0808 code to appear. Then he or she will check the clutch position sensor. Other diagnoses will include”

Common mistakes when diagnosing the P808 code

The PCM I is hardly ever the problem, so replacing it before considering other causes for the P808 code is a mistake. Often, too, the starter or solenoid is blamed when the problem is actually with the clutch position sensor.

How serious is the P808 code?

Your Check Engine Light could come on, and a P808 code stored without you ever experiencing any problems. On the other hand, if your engine fails to start, then obviously you are not going to be going anywhere. This could be inconvenient. An engine that starts without you wanting or expecting it to, though, could be very dangerous. This is not something that you should neglect. For your own safety, and for the safety of other motorists and pedestrians, you should get this taken care of at your earliest convenience.

What repairs can fix the P808 code?

Often, it is a matter of replacing corroded or damaged wiring. Frequently, too, the clutch sensor needs to be replaced. In very rare instances, the PCM itself can be at fault, and may need to be replaced. Usually, though, the problem is with another component or series of components within the vehicle, since PCMs hardly ever fail.

Additional comments for consideration regarding the P808 code

Any wiring problem in your vehicle can be dangerous. If you suspect an issue, it’s best to see a mechanic as soon as possible.

Need help with a P808 code?

YourMechanic can help you faulty wiring and other vehicle problems. We can come to your home or workplace to fix your vehicle at your convenience. Call us at 1-800-701-6230, or book an appointment using our online form. Our qualified mechanics are waiting to serve you at whatever location pleases you.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2422 OBD-II Trouble Code: Evaporative Emissions Control System (EVAP) Vent Valve Stuck Closed
Diagnostic Trouble Code (DTC): P2422 P2422 code definition Evaporative Emissions Control System (EVAP)...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...

Related questions

Q: The RPM is racing up and down when in park. Dashboard lights come on one at a time and then the car runs badly

Hi there. I understand your situation and concern. Fist we need the codes that are stored when the Check Engine Light comes on. Any diagnostic scan tool should be able to give us the codes that are set and give...

Q: What Are the Top Transmission Problems That Should Never Be Ignored?

Ignoring problems with cars is like ignoring problems with teeth. Waiting longer usually just results in more pain and expense. Seeing transmission fluid on the ground under your vehicle should get your attention right away. Transmission fluid is usually reddish-brown....

Q: Engine light and bad gears

When you disconnect the battery, the PCM (powertrain control module) looses it's stored information about your driving habits. Believe it or not, the car learns how you drive, and tries to adapt to your style, so things may not go...