P0814 OBD-II Trouble Code: Transmission Range Display Circuit

Our certified mechanics come to you · Get a fair and transparent estimate upfront

Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0814 code

P0814 is a diagnostic trouble code (DTC) for "Transmission Range Display Circuit". 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. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 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$20.00
Toyota$20.00
BMW$20.00
SCHEDULE P0814 DIAGNOSTIC Get a fair and transparent estimate upfront

P0814 code definition

The P0814 trouble code notes a problem with the transmission range display circuit

What the P0814 code means

The P0814 code is a standard OBD-II trouble code that detects a problem with the transmission shift range circuit and sensor. The transmission range sensor is responsible for sending data to the Powertrain Control Module (PCM), which the PCM uses to help decide optimal engine timing, the correct fuel delivery strategy, and many other things. When the PCM receives data from other sensors, such as the vehicle speed sensor or the transmission shift solenoid that suggests the transmission shift range is incurred, then the P0814 trouble code will be triggered.

What causes the P0814 code?

The P0814 trouble code is usually the result of a misadjusted transmission range sensor

However, there can be other causes, including:

  • Damage to the electrical components, such as the wires, connectors, and circuits
  • Corrosion on the range sensor connector
  • Malfunctioning range sensor

What are the symptoms of the P0814 code?

When the P0814 trouble code is detected, it will usually be accompanied by the Check Engine Light on the instrument panel. The transmission may also be impacted, which can result in rough shifting, and possibly even the inability to shift. It is likely that fuel efficiency will be lowered as well

How does a mechanic diagnose the P0814 code?

The P0814 code should be diagnosed using a standard OBD-II trouble code scanner. A reputable mechanic will use the scanner to view the freeze frame data and gather information about the code. The mechanic will also search for any additional trouble codes that have been detected. The trouble codes will then be reset, and the vehicle should be restarted to see if the codes return. If the P0814 code does not return, then it should be assumed that the issue is intermittent, or falsely triggered.

If the trouble code returns, the technician should begin with a visual inspection of the wires and connectors associated with the transmission range sensor. Any shorted or damaged wires, or loose or corroded connectors should be replaced. The mechanic can then use a digital volt/ohmmeter to inspect the resistance and continuity in the range display circuits.

Next, the mechanic should check the transmission range sensor to see if it is adjusted properly. If it is not, the mechanic can adjust it correctly. If it is already adjusted correctly, the mechanic should search for damage to the sensor, or corrosion on the sensor connector.

Whenever a component is replaced, the trouble codes should be reset and the vehicle restarted. That way the mechanic will know as soon as the issue has been resolved.

Common mistakes when diagnosing the P0814 code

The most frequently made mistake in diagnosing the P0814 code is the failure to adequately follow the OBD-II trouble code diagnosis protocol. It is important that mechanics always follow the protocol step by step, to make sure that the code is treated thoroughly and efficiently. It is common for the transmission range sensor to be erroneously replaced, when it simply needed an adjustment.

How serious is the P0814 code?

A vehicle with the P0814 code detected is usually still drivable. However, the car will have difficulty shifting, and sometimes may not shift at all, so it’s best to avoid driving the car. Damage can be done to the transmission if it is driven with a detected P0814 code, so the vehicle should be inspected and repaired as soon as possible.

What repairs can fix the P0814 code?

Some of the fixes for the P0814 trouble code are:

Additional comments for consideration regarding the P0814 code

The P0814 trouble code only applies to vehicles that have automatic transmissions.

Need help with a P0814 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.

P0814
trouble codes
Check Engine Light

No more waiting rooms! Our mechanics will come to you to diagnose and fix the P0814 code.

SCHEDULE P0814 DIAGNOSTIC
Get a $20 credit for the follow-up repair

Recent Check Engine Light is on Inspection reviews

Excellent Rating


YourMechanic Check Engine Light is on Inspection Service

Average Rating

4.8/5

Number of Reviews

5,010

Rating Summary
4,615
191
48
28
128
4,615
191
48
28
128

Kenneth

19 years of experience
509 reviews
Kenneth
19 years of experience
Toyota Sequoia - Check Engine Light is on - Newport Beach, California
Kenneth did a great job and very knowledgeable. He has a great attitude and I will for sure be using him again.

Richard

11 years of experience
45 reviews
Richard
11 years of experience
Honda Civic - Check Engine Light is on - Tucson, Arizona
Had damage to wires leading to a coil and was unable to drive the car to a service center so I took a chance on having somebody come out to work on the car. It couldn't of worked out any better. Would definitely recommend Richard to anybody needing car service.

Clifton

29 years of experience
207 reviews
Clifton
29 years of experience
Dodge Ram 1500 - Check Engine Light is on - Lake Worth, Florida
Clifton was on time and very professional. I will definitely recommend him to my friends and family.

Walter

45 years of experience
85 reviews
Walter
45 years of experience
Nissan Sentra - Check Engine Light is on - Tulsa, Oklahoma
Very helpful and knowledgeable. Appreciate the friendliness on top of it, would definitely recommend.


More related articles

P0225 OBD-II Trouble Code: Throttle/Pedal Position Sensor/Switch C Circuit Malfunction
P0225 P0225 code definition Throttle/Pedal Position Sensor/Switch C Circuit Malfunction What the P0225 code means P0225 is a generic OBD-II code which indicates that the throttle/pedal position sensor/switch C circuit has an internal failure. The sensor went out of range,...
P2297 OBD-II Trouble Code: O2 Sensor Out of Range During Deceleration Bank 1 Sensor 1
P2297 P2297 code definition O2 Sensor Out of Range During Deceleration Bank 1 Sensor 1 (May be seen with other oxygen sensor codes) What the P2297 code means P2297 means that the oxygen sensor (O2) has out of range sensor...
P0304 OBD-II Trouble Code: Cylinder 4 Misfire Detected
P0304 code definition P0304 is a diagnostic trouble code seen when a misfire is detected in cylinder 4. This code may...

Related questions

Replaced EGR valve and cleaned the intake but the P0401 code is still coming up after reset

Hi there. From the description you have given, your vehicle's P0401 (EGR insufficient flow) code may be a control problem. Assuming, the intake passage cleaning was successful. Good intake manifold vacuum is present at the EGR (exhaust gas recirculation) valve....

Getting error codes P0599 and P0171. Ive cleaned the O2 sensors but have no idea where to go from here.

Hello. Code P0599 is the code for an issue with the thermostat heater control circuit, while P0171 is for a lean condition on bank 1. P0599 is set when the computer detects that there is an issue with the electronically...

Broke down on the highway and had towed to a Buick dealer. They diagnosed and replaced the catalytic converter.

It is possible that the new catalytic converter is bad. Sometimes, when the converter comes apart inside, it can get into the muffler and cause it to be clogged.

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