Skip the auto shop - Our mechanics make house calls
  1. Home
  2. Articles
  3. P0876 OBD-II Trouble Code: Transmission Fluid Pressure Sensor/Switch D Circuit Range/Performance

P0876 OBD-II Trouble Code: Transmission Fluid Pressure Sensor/Switch D Circuit Range/Performance

diagnostic check engine light

P0876 code definition

The storage of a P0876 trouble code signals a problem with the transmission fluid pressure. When this happens a P0876 trouble code is stored on the Powertrain Control Module (PCM) and a Check Engine light illuminates. In addition to the P0876 trouble code, the PCM might also store a P0875, P0877, P0878, and P0879 code.

What the P0876 code means

When the transmission fluid pressure is higher or lower than the manufacturer's specifications, a P0876 trouble code is stored and the Check Engine light illuminates.

What causes the P0876 code?

Some of the common causes for the storage of a P0876 trouble code include a low transmission fluid condition, defective high pressure pump, and a malfunctioning transmission. An overheating transmission, bad transmission temperature sensor, and bad PCM can also cause the storage of a P0876 trouble code.

What are the symptoms of the P0876 code?

A clear symptom of a P0876 trouble code is the odor of overheated transmission fluid present. Smoke issuing from the area of the transmission is also a strong indicator of this code. A final sign of a P0876 trouble code is failure of the transmission to engage and a slipping transmission.

How does a mechanic diagnose the P0876 code?

Diagnosing a P0876 trouble code requires the mechanic to have an advanced scanner, digital volt\ohmmeter, a manufacturer's wiring schematic for the vehicle with the trouble code, a manual pressure gauge, and a hydraulic pressure diagram. Once all of the necessary tools are gathered, the mechanic should perform the following steps:

  • Check the transmission fluid condition. If it smells burned or appears abnormal, then drop the transmission pan to inspect it for debris.
  • If debris is present, then the mechanic should consider rebuilding the transmission before proceeding further.
  • In addition, the mechanic should fill the transmission to a level sufficient to repair any leaks.
  • Carefully inspect the wiring and connectors from the PCM to the transmission fluid pressure sensor.
  • After making all of the necessary repairs, the mechanic should fill the transmission fluid to a normal level.
  • In addition, the mechanic should clear the code and start the vehicle, allowing it to reach a normal operating temperature before taking a test drive to see if the code returns.
  • If the transmission fluid pressure is low, the mechanic should connect a manual pressure gauge to the transmission and use a hydraulic pressure diagram to test the hydraulic pressure pump. The mechanic should compare their findings to the manufacturer's specifications.
  • If the trouble code returns, the mechanic should use a digital volt/ohmmeter and a manufacturer's wiring schematic to check the circuits associated with the transmission fluid pressure sensor.
  • If the circuits associated with the transmission fluid pressure sensor cheek out okay, then the mechanic should check the resistance and ground of the PCM.
  • Once everything has checked out or been repaired, the mechanic should clear the code and test the system to see if it returns.

Common mistakes when diagnosing the P0876 code

One common mistake made by mechanics when diagnosing this trouble code is assuming that the code is caused only by a transmission fluid leak when in actuality the low fluid condition has allowed the transmission components to suffer damage. Another mistake is for a mechanic to rebuild the transmission when it is not needed.

How serious is the P0876 code?

To prevent serious damage to transmission components, vehicle owners need to have a P0876 trouble code diagnosed and repaired as soon as possible. The longer a vehicle owner waits to get it repaired, there is more of a chance the transmission suffers from slipping and even failure.

What repairs can fix the P0876 code?

Repairing and clearing a P0876 trouble code is a multi-step process that requires the mechanic to perform the following:

Need help with a P0876 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.

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 Long Does a Fuel Filler Neck Last?
Getting gas from the pump to your gas tank is the only way to keep a car going. The fuel filler neck is a metal tube that is welded to the...
How Long Does a Throttle Return Spring Last?
Not all vehicles on the road feature an electronic throttle control (ETC), which is also called drive-by-wire. For vehicles that don't offer this system, they have a throttle cable instead that...
Symptoms of a Bad or Failing Flexible Clutch Hose
Common signs include difficulty shifting, low clutch fluid, and feeling no resistance at the clutch pedal.


Related questions

Q: Car shut off while driving

Without additional information, it is hard to say what could have caused this. Your car has a variety of sensors that can cause it to shut down depending on whether or not everything is functioning correctly. I would suggest having...

Q: How do I know that my OBD system is working right?

The OBD system on your vehicle is a self-monitoring system. The Powertrain Control Module monitors and controls all of the systems and functions that regulate fuel, ignition, emissions, and engine cooling as well as having some minor control over air...

Q: Check Engine light comes on when cars RPMS go over 4000 error code P0344

Hi there. This code is for a bad camshaft sensor. It can be caused by a bad sensor or it can come from another issue. I usually check the sensor first and then I check the timing belt. Most of...