P0805 OBD-II Trouble Code: Clutch Position Sensor Circuit Malfunction

Our certified mechanics come to you · 12-month, 12,000-mile warranty

SCHEDULE P0805 DIAGNOSTIC Get a fair and transparent estimate upfront
Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0805 code

P0805 is a diagnostic trouble code (DTC) for "Clutch Position Sensor Circuit Malfunction". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $70.00. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $30.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford$70.00$30.00
Toyota$70.00$30.00
BMW$70.00$30.00
SCHEDULE P0805 DIAGNOSTIC Get a fair and transparent estimate upfront

Check Engine Light

P0805 code definition

When the PCM (powertrain control module) detects a problem with the clutch position sensor (also referred to as the clutch start switch) in a manual transmission vehicle, the P0805 code is stored and the Check Engine light is illuminated.

What the P0805 code means

When this code is stored, it indicates that there is a problem with the clutch position sensor, which can have a number of negative effects on the drivability of the vehicle.

What causes the P0805 code?

In most cases, a P0805 code is stored because the clutch position sensor has been improperly adjusted or has come out of adjustment. This code may also occur as a result of a problem in the wiring and/or connectors for the clutch position sensor, as well.

What are the symptoms of the P0805 code?

While the Check Engine light will always be illuminated when a P0805 code is stored, the driver may not notice any other problems or symptoms affecting the vehicle’s performance or drivability. Some symptoms that may occur include:

  • Higher or lower than normal engine speeds when the clutch is depressed.
  • Ability to start the vehicle without depressing the clutch.

How does a mechanic diagnose the P0805 code?

After detecting the code with an OBD-II scanner, the mechanic will then perform a visual inspection of the clutch position sensor circuit and all related components. They will also use an ohmmeter to test the circuit to find out if there are any shorts or if there is any other damage to the circuits wiring or connectors.

After performing each test and taking each diagnostic step, the mechanic will use a scanner to clear the code(s) in the PCM and then take the vehicle for a test drive to see if the P0805 code is stored again. Then they will move on to the next step.

Common mistakes when diagnosing the P0805 code

The most common mistake when diagnosing a P0805 code is to assume that the problem is with the starter or solenoid when the actual cause of the issue lies with the clutch position sensor and/or its circuit.

How serious is the P0805 code?

Though the symptoms associated with a P0805 code are generally rather benign, this code can actually be quite dangerous for vehicle with remote start features. Because the vehicle may start without the clutch depressed, this could result in a situation in which the vehicle can start to move before the driver has a chance to get inside and control it.

What repairs can fix the P0805 code?

In most instances, re-adjusting or replacing the clutch position sensor will solve the problem and allow the code to clear without returning. In some cases, the wiring or connectors for the clutch position sensor’s circuit will need to be replaced, and/or the clutch position sensor may be faulty and may need to be replaced.

Additional comments for consideration regarding the P0805 code

Even if you do not notice any other symptoms and you do not have a remote start feature on your vehicle, it is important to have this issue addressed as soon as possible. Simply having the Check Engine light illuminated is enough to prevent your vehicle from passing an OBD-II emissions test, which – in most states – will prevent you from renewing your vehicle’s registration and legally driving it.

Need help with a P0805 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

P0805
trouble codes
Check Engine Light

Fast and easy Check Engine Light is on Inspection service at your home or office.

SCHEDULE P0805 DIAGNOSTIC
Get a fair and transparent estimate upfront

Recent Check Engine Light is on Inspection reviews

Excellent Rating


YourMechanic Check Engine Light is on Inspection Service

Average Rating

4.5/5

Number of Reviews

4,004

Rating Summary
3,661
169
45
25
104
3,661
169
45
25
104
Eric

Eric

9 years of experience
222 reviews
Eric
9 years of experience
Favorably over 30 minutes early for appointment. Polite, personable, professional. Highly knowledgeable. Answered questions and explained process, problem, etc. effectively.
2007 NISSAN MURANO - CHECK ENGINE LIGHT IS ON - RALEIGH, NORTH CAROLINA
Chris

Chris

13 years of experience
188 reviews
Chris
13 years of experience
Great tech.
2002 NISSAN MAXIMA - CHECK ENGINE LIGHT IS ON - BONITA, CALIFORNIA
Ricardo

Ricardo

8 years of experience
223 reviews
Ricardo
8 years of experience
Very nice and informative
2002 TOYOTA CELICA - CHECK ENGINE LIGHT IS ON - LOS ANGELES, CALIFORNIA
Leslie

Leslie

22 years of experience
2 reviews
Leslie
22 years of experience
Insanely fast, professional, helpful beyond just the initial problem. Cannot say enough good things about this guy. A+
2005 LEXUS RX330 - CHECK ENGINE LIGHT IS ON - DICKINSON, TEXAS

More related articles

Insurance Requirements for Car Registration in Kentucky
The Kentucky Transportation Cabinet requires that all drivers in Kentucky carry liability automotive insurance, or “financial responsibility” in order to operate a vehicle legally and maintain vehicle...
The Traveler’s Guide to Driving in Malaysia
CraigBurrows / Shutterstock.com Malaysia is a popular destination for many tourists today. The country has amazing sights and attractions that you will want to explore....
Veteran and Military Driver Laws and Benefits in Idaho
The state of Idaho offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch in the...

Related questions

Q: KOEO test code 332

Hello there, A few different things can cause insufficient EGR flow. The most likely are: a stuck closed EGR valve a failed EGR valve solenoid faulty oxygen sensor low fuel pressure exhaust leak These can also...

Q: Check engine light refuses to go off after engine replaced

Hello there, you have a long series of issues going on with your 2013 Hyundai Sonata. If you keep getting a repeating oil light on than there is likely a fault in that system. Since this fault has lasted after...

Q: How many crankshaft position sensors are on a 2011 GMC Terrain?

Usually there will only be one crankshaft position sensor. However, there is also a camshaft position sensor as well. It is more likely that there is multiple cam sensors than crank sensors. It is possible for engines to have anywhere...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1-800-701-6230 · hi@yourmechanic.com