P0894 OBD-II Trouble Code: Transmission Component Slipping

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

SCHEDULE P0894 DIAGNOSTIC Get a fair and transparent estimate upfront
Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0894 code

P0894 is a diagnostic trouble code (DTC) for "Transmission Component Slipping". 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 P0894 DIAGNOSTIC Get a fair and transparent estimate upfront

Check Engine Light

P0894 code definition

The P0894 trouble code detects an issue with the vehicle’s automatic transmission component.

What the P0894 code means

The P0894 code is an OBD-II trouble code signaling a problem with the transmission component slipping. The powertrain control module (PCM) is responsible for altering the gear rations of the automatic transmission, as this helps control the vehicle’s speed, acceleration, fuel economy, and overall engine performance. When the ratio is one of the vehicle’s gears is not perceived to be consistent with the what the PCM is dictating, the P0894 trouble code will be detected.

What causes the P0894 code?

There are a number of different issues that can cause the P0894 code to be detected, including:

  • Mechanical failures within the internal transmission
  • Transmission fluid is low, empty, or contaminated
  • The internal transmission fluid passages are clogged or blocked
  • Malfunctioning shift solenoids
  • Faulty transmission control module (TCM)
  • Malfunctioning PCM

What are the symptoms of the P0894 code?

When the P0894 trouble code is detected, the vehicle’s Check Engine Light will usually illuminate on the instrument cluster. Most of the other symptoms are issues with the transmission, such as an inability to switch into or out of a certain gear, an overheating transmission, transmission slippage, and rough shifting. The vehicle may also experience a notable decrease in fuel efficiency.

While all of these symptoms are relatively common with the P0894 code, it is also common for no noticeable symptoms to occur when the code is first detected.

How does a mechanic diagnose the P0894 code?

The P0894 code should be diagnosed with a standard OBD-II trouble code scanner. A trained technician will examine the freeze frame data from the scanner, which will allow them to gain insight into the P0894 code, and see if any other trouble codes are present. The codes should then be reset, and the vehicle restarted and taken for a test drive. If the codes do not return, the issue was likely triggered erroneously, or as an intermittent error.

If the P0894 code remains after resetting and restarting, the mechanic will begin by assessing the transmission fluid. If the fluid is low, it will be replenished, and if it is dirty it will be emptied, flushed, and refilled.

If the code is still not resolved, the technician will assess the internal transmission, and look for issues such as damaged wires, faulty connectors, and damaged harnesses. Any issues in the internal transmission should be replaced.

If the issue does not lie with the transmission fluid or a mechanical issue in the internal transmission, then the technician can look for other potential problems, such as with the shift solenoids or the control modules.

Whenever a component is repaired or replaced, the mechanic should reset the trouble codes and restart the vehicle, to see if the issue has been resolved.

Common mistakes when diagnosing the P0894 code

The most common mistake when diagnosing the P0894 code comes from a failure to follow the standard OBD-II trouble code diagnosis protocol. The protocol for assessing a trouble code should be followed at all times. Failure to do so often results in replacing fully functioning shift solenoids, when wires, connectors, or harnesses (more affordable fixes) were the actual problem.

How serious is the P0894 code?

The P0894 trouble code usually doesn’t keep a car from being able to drive. However, the issue causing the code may be causing damage to the transmission. Failure to have the P0894 code addressed can result in severe damage to the transmission, and the system may need a rebuild.

What repairs can fix the P0894 code?

Some of the repairs for the P0894 trouble code include:

Additional comments for consideration regarding the P0894 code

The P0894 code only exists in vehicles with automatic transmissions. It is common for other gear ratio trouble codes to be present when the P0894 code is detected. If the PCM needs to be replaced, it will also need to be reprogrammed.

Need help with a P0894 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.

trouble codes
Check Engine Light
P0894

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

SCHEDULE P0894 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

3,696

Rating Summary
3,372
162
42
24
96
3,372
162
42
24
96

Patrick

30 years of experience
865 reviews
Patrick
30 years of experience
Patrick did a great job and pin point the problem quick , he will be my mechanic for now on ,
2003 FORD EXPEDITION - CHECK ENGINE LIGHT IS ON - DEL VALLE, TEXAS

Jonathan

19 years of experience
304 reviews
Jonathan
19 years of experience
Great guy knows his stuff. Highly recommended for prompt pro vast knowledge and aptitude.
2001 PONTIAC AZTEK - CHECK ENGINE LIGHT IS ON - DENVER, COLORADO

Jerome

31 years of experience
68 reviews
Jerome
31 years of experience
Jerome was very through and intelligent in his diagnostic.
2005 TOYOTA CAMRY - CHECK ENGINE LIGHT IS ON - BALTIMORE, MARYLAND

William

31 years of experience
144 reviews
William
31 years of experience
Great customer service
2014 CHEVROLET SPARK - CHECK ENGINE LIGHT IS ON - SURPRISE, ARIZONA

More related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
How to Transfer a Car Title in Idaho
In order to prove ownership of a car, you must have the title. However, when a car is sold, given away or inherited, the title needs...
How to Get a Louisiana Driver's Permit
s licensing program. The first step in this program is to obtain...

Related questions

Q: Q: Engine light is on

Hello. Diagnostic Trouble Codes (DTC's) do not necessarily identify faulty parts. For example, the Code you are inquiring about, namely, P0126 could set the Check Engine Light (CEL) simply because the coolant level in your car is too low. If...

Q: The computer (ECM) says it's EGR flow and there is no other symptoms. What you think is the problem?

Either the EGR (Exhaust Gas Recirculation) valve is stuck in the open position or is closed and not opening. First try removing the EGR valve and cleaning it out. Then see if the engine light goes out after cleaning the...

Q: Engine not firing

Hello, thanks for writing in about your Ford F-150. You will need to scan the computer to see if there is codes for the crankshaft or camshaft sensor. If you'd like to have this fixed, consider YourMechanic, as a certified...

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