Skip the auto shop - Our mechanics make house calls
  1. Home
  2. Articles
  3. B1955 OBD-II Trouble Code: Seat Front Up/Down Potentiometer Feedback Circuit Open

B1955 OBD-II Trouble Code: Seat Front Up/Down Potentiometer Feedback Circuit Open

diagnostic check engine light

B1954 code definition

A B1954 trouble code indicates that the vehicle's Engine Control Unit (ECU) has detected a circuit failure related to one of the front seat's seat potentiometers.

What the B1954 code means

The seat potentiometer is a small black box, located underneath the seats of modern vehicles. It feeds data to the Engine Control Unit (ECU) regarding the seat's relative position in the vehicle, allowing to failsafe against potential conflicts with other car features, such as a convertible roof. If a seat potentiometer circuit has failed, it will rob the ECU of this information. This can result in the seat position freezing (if it's moved electronically) and will disable seat placement failsafes in the vehicle.

What causes the B1954 code?

If the circuit has failed, a faulty seat potentiometer is the most common offender. Broken, disconnected and/or faulty wiring is another potential cause for this issue. The vehicle's Engine Control Unit (ECU) may be reporting the B1952 code incorrectly in some rare circumstances. If the ECU is diagnosed as faulty, it will be due for replacing or reprogramming.

What are the symptoms of the B1954 code?

If a seat potentiometer system isn't working, there's a risk of conflict between the seat and other car features, such as a retractable roof. In some cases, the seat may even be locked in place until the code is fixed. In addition, a stored B1954 trouble code and illuminated check engine light will be present in the event of this code. These will be active for the helpful sake of accurately diagnosing the issue.

How does a mechanic diagnose the B1954 code?

A B1954 trouble code may be first diagnosed by scanning the vehicle with an OBD-II code scanner. The seat potentiometer circuit may be accessed by prying open the seat's side panel. Check the seat potentiometer for signs of fault or damage. All wiring related to the seat potentiometer in question should be inspected thoroughly for signs of wear, damage, disconnection or faultiness.

Common mistakes when diagnosing the B1954 code

Body-related trouble codes describe different problems depending on the specific make and model of vehicle in question. Make sure you are interpreting the trouble code correctly before moving on with any repairs.

How serious is the B1954 code?

A B1954 code should not have a significant impact on a vehicle's drivability, unless it has been cited alongside other, more problematic codes. If the convertible roof's contact failsafe is merely disabled, it can be worked around provided manual care is taken to ensure different parts don't conflict with each other. If the seat position is frozen however, it may cause drivability issues depending on where the seat has been locked.

What repairs can fix the B1954 code?

The seat potentiometer should be replaced if tests have determined it to be faulty. Any wiring or electrical components related to the seat pot circuit that have been detected as problematic should be repaired or replaced as well. Following any repairs made to fix the B1954 code, the vehicle should be tested again. When the car is turned on, a still-broken seat potentiometer will report the code again. This will allow you to tell whether or not the issue has been properly solved.

Additional comments for consideration regarding the B1954 code

A seat potentiometer is commonly referred to by mechanics as a "seat pot".

Need help with a B1954 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

P0121 OBD-II Trouble Code: TPS "A" Circuit Range Performance Problem
P0121 code definition Throttle Pedal Position Sensor/Switch (TPS) A Circuit Range Performance Problem...
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 Buy Fuel Treatments
Adding a fuel additive to your gas tank when you fill up is one way to clean vital engine parts of deposits, improve the performance of your engine,...


Related questions

Q: 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...

Q: OBD not working

Hi there. If the OBD port is not working then most of the time this is caused by a loss of power to the plug. The fuse to the plug needs to be checked first to see if it is...

Q: Hi I have this dtc:P0698 description (failure of wiring and connection. failure of spark plug control module) engin no start

Hi there. Typically this is a failure in the ignition control circuit. Most of the time it is a wiring failure going to the ignition coils such as a bad ground connection. It can also be caused by a failure...