P0901 OBD-II Trouble Code: Clutch Actuator Circuit Range/Performance

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

SCHEDULE P0901 DIAGNOSTIC Get a fair and transparent estimate upfront
Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0901 code

P0901 is a diagnostic trouble code (DTC) for "Clutch Actuator Circuit Range/Performance". 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 P0901 DIAGNOSTIC Get a fair and transparent estimate upfront

Check Engine Light

P0901 code definition

When the PCM (powertrain control module) detects that the clutch actuator circuit is not performing within the range determined by the manufacturer, it will record a P0901 code and illuminate the Check Engine light.

What the P0901 code means

In a fully automatic or semi-automatic transmission (SAT), the vehicle will determine the best time to shift when the TCM (transmission control module) gets the correct input signals and sends a command to the clutch actuator. If the PCM gets an input signal that identifies a problem with the clutch actuator’s performance, the code will be stored.

What causes the P0901 code?

The most common causes for a P0901 code to be stored include:

  • A faulty clutch actuator
  • An open circuit to the clutch actuator
  • A loose or disconnected ground
  • A faulty solenoid
  • A problem with the TCM or PCM (rare)

What are the symptoms of the P0901 code?

In most cases, in addition to the illumination of the Check Engine light, the driver will generally notice harsh shifting. The clutch may also fail to engage or disengage.

How does a mechanic diagnose the P0901 code?

After determining the presence of the P0901 code and any related codes (P0900) is also a common code that shows up in relation to the P0901 code, as are P0902 and P0903. If a P0900 code is detected, it should be addressed before the P0901 code, as it may resolve the underlying issue.

After diagnosing the code(s) recorded by the PCM, the mechanic will take a sequence of diagnostic steps to find the problem and fix it. After taking each step and making each repair, they will clear all codes and retest the system.

Common mistakes when diagnosing the P0901 code

The most common mistakes associated with a P0901 code involve failing to inspect the system closely enough and assuming that the clutch actuator is the cause of the problem. If the actual cause is an open or shorted circuit, the fix could be much simpler and less expensive.

How serious is the P0901 code?

Whether you have a semi-automatic or automatic transmission in your car, it’s important that your vehicle is able to shift at the right times and RPMs. If the clutch actuator is malfunctioning in any way, this can result in a number of problems that could easily put you in danger as you drive your vehicle.

What repairs can fix the P0901 code?

The most common repairs that can fix a P0901 code include:

  • Replacing the wiring harness for the clutch actuator
  • Reconnecting a loose or disconnected ground
  • Replacing a faulty solenoid
  • Replacing or reprogramming the PCM or TCM (rare)

Additional comments for consideration regarding the P0901 code

The P0901 code indicates that there is a significant problem in your transmission system that needs to be addressed immediately. In addition to making it impossible to pass an OBD-II emissions test while the Check Engine light is on, this code can result in serious problems for the engine, as well as putting you in dangerous situations while driving.

Need help with a P0901 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.

P0901
trouble codes
Check Engine Light

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

SCHEDULE P0901 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
Kevin

Kevin

22 years of experience
151 reviews
Kevin
22 years of experience
Great thorough service!
2013 NISSAN SENTRA - CHECK ENGINE LIGHT IS ON - ATLANTA, GEORGIA
Jerimiah

Jerimiah

16 years of experience
228 reviews
Jerimiah
16 years of experience
so far all is well. When he came over I'd texted previous to visit that I had an oil leak some where. He fixed it. Next time I get an oil change I'll know for sure. Service engine light was on due to a defective gas cap. Appreciated the honesty. He could have told me anything but was honest.
2007 SATURN AURA - CHECK ENGINE LIGHT IS ON - NORTH LAS VEGAS, NEVADA
Steven

Steven

18 years of experience
198 reviews
Steven
18 years of experience
Steven called me and asked if it was okay for him to arrive early for the appointment. When he arrived, he greeted me with a good handshake and a smile while he introduced himself to me. After verifying what was wrong with my pickup, he started in right away diagnosing the problem. After the diagnosis was performed, he told me what the problem was and proceeded to fix it. He was very professional and knowledgeable about my truck. He fixed the problem in what seemed like a very short time and had me test drive the truck. The problem was fixed and I am a very satisfied customer. Steven is a great asset and representative of Your Mechanic. I will definitely ask for Steven the next time I use your company. sincerely, James J. Ward
2000 CHEVROLET SILVERADO 1500 - CHECK ENGINE LIGHT IS ON - FORT WORTH, TEXAS
John

John

16 years of experience
114 reviews
John
16 years of experience
Arrived on time, very professional, friendly and honest
2005 MAZDA TRIBUTE - CHECK ENGINE LIGHT IS ON - CEDAR PARK, TEXAS

More related articles

Auto Safety Tips
Driving is more than a way to get from point A to point B. Owning and driving a car can also be a highly enjoyable experience. Whether a person is driving...
P0291OBD-II Trouble Code: Cylinder 11 Injector Circuit Low
P0291 code definition When your vehicle’s PCM registers the P0291 code, it means that a voltage reading came from the fuel injector circuit – for cylinder number 11’s fuel injector –...
P0359 OBD-II Trouble Code: Ignition Coil I Primary/Secondary Circuit Malfunction
P0359 code definition The P0359 code indicates that a fault has been detected in one of the vehicle’s ignition coils, generally the number 9 coil. This code can also be associated...

Related questions

Q: Tranny troubles

You need to have the transmission leak from the bell housing fixed. The fluid leaking is causing the transmission shift problem. The trouble code P2271 indicates that the O2 sensor after the converter shorted rich. This may happen if transmission...

Q: 05 Acura tl 6 spd will not accelerate

First see if engine will rev up out of gear to see f problem is engine throttle or you have a slipping transmission clutch. If engine runs good and revs normally then have the transmission clutch checked for needing replacement....

Q: VSC and Traction control lights on after wheel alignment. Unable to reset/recalibrate

A faulted sensor like the steering angle sensor can cause these systems to malfunction. A steering angle reset is required with an alignment on these vehicles and involves a procedure that includes disconnecting the battery. If you'd like a fresh...

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