B2971 Lincoln Code - Pedal Position Input Short To Ground
Quick Answer
The adjustable pedal memory function utilizes a Hall-effect position sensor. Common causes include Adjustable Pedal Motor harness is open or shorted, Adjustable Pedal Motor circuit poor electrical connection, Faulty Memory Set Switch. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- B2971 Lincoln indicates Pedal Position Input Short To Ground.
- Common causes
- Common causes include Adjustable Pedal Motor harness is open or shorted, Adjustable Pedal Motor circuit poor electrical connection, Faulty Memory Set Switch.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code B2971 Lincoln Description
What are the Possible Causes of the DTC B2971 Lincoln?
- Adjustable Pedal Motor harness is open or shorted
- Adjustable Pedal Motor circuit poor electrical connection
- Faulty Memory Set Switch
- Faulty Adjustable Pedal Switch
- Faulty Adjustable Pedal Motor
- Faulty Driver seat module (DSM)
How to Fix the DTC B2971 Lincoln?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B2971 Lincoln code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about B2971 Lincoln Code
1. What does the OBDII code B2971 mean on a Lincoln vehicle?
B2971 indicates a "Pedal Position Input Short To Ground," meaning there is an electrical issue within the pedal position sensor circuit, such as a grounded wire.
2. What are the symptoms of code B2971 in a Lincoln?
Common symptoms include limited throttle response, reduced engine power, illumination of the check engine light, and in some cases, a vehicle that goes into limp mode.
3. What causes the B2971 code to appear in a Lincoln?
This code is typically caused by damaged or shorted wiring, a faulty pedal position sensor, corroded connectors, or issues with the vehicle's PCM (powertrain control module).
4. Can I drive my Lincoln with the B2971 code active?
It’s not recommended to drive with this code active as it may result in limited acceleration, reduced engine performance, and potential safety concerns.
5. How do I diagnose the B2971 code on a Lincoln?
Start by inspecting the pedal position sensor wiring for shorts or damage, test the sensor with a multimeter, and check for loose or corroded connectors.
6. What tools are needed to troubleshoot the B2971 code?
You’ll need an OBDII scanner, a multimeter, and possibly a wiring diagram for your Lincoln to trace the affected circuit.
7. How do you fix the B2971 code on a Lincoln?
Repairs may include replacing damaged wiring, cleaning or reconnecting corroded connectors, or replacing the faulty pedal position sensor.
8. Is the pedal position sensor the only part that can cause the B2971 code?
No, the issue could also stem from wiring problems, connector issues, or a malfunctioning PCM.
9. How much does it cost to repair the B2971 code in a Lincoln?
Costs vary depending on the issue but can range from $100 to $300 for sensor replacement, with additional charges for wiring repairs or diagnostics.
10. Can a software update fix the B2971 code on a Lincoln?
In rare cases, a PCM software update may resolve the issue if it’s related to a programming error, but physical repairs are more commonly needed.
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