B1971 OBD-II Trouble Code: Passenger Seatback Rearward Switch Circuit Short to Ground

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

Red-stars EXCELLENT RATING ON

Cost of diagnosing the B1971 code

B1971 is a diagnostic trouble code (DTC) for "Passenger Seatback Rearward Switch Circuit Short to Ground". 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 $114.99 . Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.0 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 $114.99 $20.0
Toyota $114.99 $20.0
BMW $124.99 $20.0
SCHEDULE B1971 DIAGNOSTIC Get a fair and transparent estimate upfront

B1971 code definition

The B1971 trouble code detects a passenger seatback rearward switch circuit malfunction.

What the B1971 code means

The B1971 code is a generic OBD-II trouble code that signals a circuit error from the passenger seatback rearward switch. This switch is usually located on the outboard side of the front passenger seat, and is used to adjust the seat forward and rearward. When a passenger seatback rearward switch circuit error is detected by the body control module or the powertrain control module (PCM), then the B1971 code will possibly be stored.

What causes the B1971 code?

The B1971 trouble code is commonly caused by two different issues. The first common cause is damaged electrical components in the seatback switch or the power seat system, such as shorted wires, open connectors, and blown fuses. The second common cause is a defective passenger seatback rearward switch. The code is sometimes triggered by a malfunctioning body control module, but this is a fairly rare occurrence.

What are the symptoms of the B1971 code?

The B1971 trouble code will likely result in an inoperable passenger seatback rearward switch. If this is the case, the front passenger seatback will not be able to be adjusted rearward, and most likely forward as well. The code can also cause the check engine soon warning light to illuminate on the gauge cluster.

How does a mechanic diagnose the B1971 code?

The B1971 code is diagnosed with the help of a standard OBD-II trouble code scanner. A trustworthy technician will look at the freeze frame data from the scanner and gather information about the code, while also looking for additional trouble codes that have been detected. In the event that multiple codes are present, they should be diagnosed in the order that they appear in. The trouble codes should then be reset, and the vehicle restarted, so that the B1971 code can be checked for again. If the code is no longer present, then an erroneous detection, or an intermittent issue are the likely causes.

If the B1971 code is still detected, then a visual inspection of the electrical components will need to be performed. Any electrical parts that are damaged or compromised in any way will be replaced. The technician will then inspect the passenger seatback rearward switch.

When any replacement or repair is made, the inspection should be halted so that the codes can again be reset, the vehicle restarted, and the B1971 code checked for. This will allow the mechanic to know as soon as the problem is fixed.

Common mistakes when diagnosing the B1971 code

The most common mistake that is made when diagnosing this code comes from a failure to abide by the OBD-II trouble code diagnosis protocol. Technicians should always follow the protocol step by step, to guarantee accurate inspections and repairs.

Fully functional passenger seatback rearward switches are often unnecessarily replaced, because the electrical components were not first inspected.

How serious is the B1971 code?

A car with a B1971 code will still be drivable, and won’t have any drivability issues. However, the front passenger seatback will likely not be able to be adjusted, which can be a hassle, both from a comfort and a practicality standpoint. A vehicle with this code should be inspected as soon as is convenient.

What repairs can fix the B1971 code?

Possible repairs for the B1971 trouble code are:

Additional comments for consideration regarding the B1971 code

The B1971 code is a manufacturer specific trouble code. Manufacturer specific codes are codes that have different definitions depending on the automaker. The B1971 code will detect a passenger seatback rearward switch circuit error in some cars, but may suggest a very different body issue with other cars. As always, technicians should be very aware of the vehicle that they are working on when diagnosing the B1971 trouble code.

Need help with a B1971 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.

OBD-II
trouble codes
B1971

No more waiting rooms! Our mechanics will come to you to diagnose and fix the B1971 code.

SCHEDULE B1971 DIAGNOSTIC
Get a $20 credit for the follow-up repair

Recent Check Engine Light is on Inspection reviews

Excellent Rating

(7400)

Rating Summary
6879
249
58
41
173
6879
249
58
41
173
 at YourMechanic

David

13 years of experience
393 reviews
David
13 years of experience
Chevrolet Malibu L4-2.4L - Check Engine Light is on Inspection - Marietta, Georgia
He explained everything to me in detail on what I needed to know about my car. Definitely recommend him for getting the job done.
 at YourMechanic

Raymond

37 years of experience
402 reviews
Raymond
37 years of experience
Toyota Camry L4-2.2L - Check Engine Light is on - Las Vegas, Nevada
Raymond did a great job however I was charged for two hours labor and he was only here less than 45 minutes. should I expect this on future appointments with your mechanic ?
 at YourMechanic

Shane

17 years of experience
217 reviews
Shane
17 years of experience
Volkswagen EuroVan V6-2.8L - Check Engine Light is on Inspection - Austin, Texas
Arrived on time. Explained the issues he found and how he will fix it. I have parts on order and will schedule an appointment to have Shane install the parts when they arrive.
 at YourMechanic

Kanstantsin

19 years of experience
51 reviews
Kanstantsin
19 years of experience
Ford F-150 V8-4.6L - Check Engine Light is on Inspection - Littleton, Colorado
Kanstantsin arrived early. Was very courteous and professional. Will highly recommend to anyone. Thank you Kanstantsin.


More related articles

P2148 OBD-II Trouble Code: Fuel Injector Group A Supply Voltage Circuit High
What What the P2148 code means? P2148 is an OBD-II generic code for the engine control module (ECM) detecting the fuel injector group A supply voltage circuit has a high resistance causing a short in the system. What causes the...
P2629 OBD-II Trouble Code: O2 Sensor Pumping Current Trim Circuit / Open Bank 2 Sensor 1
P2629 P2629 code definition The P2629 trouble code detects a problem with the voltage signal from the oxygen sensor pumping current trim circuit of sensor 1 in bank 2. What the P2629 code means P2629 is a standard OBD-II trouble...
P2284 OBD-II Trouble Code: Injector Control Press Sensor Circuit Range / Performance
P2284 means the Powertrain Control Module (PCM) has bad readings from the injector control pressure circuit, often due to low oil level or pressure.

Related questions

p0720 code will not stay gone
Hello. If the vehicle speed sensor has been replaced then the wiring to the sensor must be tested. If there is high resistance or any breaks in the wire then this will occur. I have also seen the signal gear...
Check Engine Light was on with a gas smell. I took it to the dealer.
I would ask what codes they found and how they determined the fuel pump was the cause. They likely diagnosed the pump by measuring fuel pressure. You didn't say what kind of Hyundai you have, but generally, fuel pressure should...
Where is the plug in for the code reader?
Your vehicle's OBD connector is located on the driver's side of the vehicle underneath the dash to the right of the steering column just above the gas pedal.

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 (855) 347-2779 · hi@yourmechanic.com