AutoCodes – Ford – B2971 Ford

B2971 Ford 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 Ford 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.

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Code Popularity 438

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Feb 24, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2971 Ford Description

The adjustable pedal memory function utilizes a Hall-effect position sensor. The Driver Seat Module (DSM) supplies a signal feed circuit to the position sensor and a reference signal return circuit. Each position sensor sends a signal voltage back to the DSM used to monitor the position of the adjustable pedals. The signal voltage from the adjustable pedal Hall-effect sensor to the DSM provides an indication to the DSM of whether or not the adjustable pedal motor is stalled. When the driver sets a pedal position in the DSM, it stores the value of where the adjustable pedals are located using a time frame of motor operation. When the driver requests a return to a pedal position in memory, the DSM operates the adjustable pedal motor until the adjustable pedals output matches the time frame stored in memory. If the memory function is not utilized, the adjustable pedal switch can also be used for normal operation of the adjustable pedals system. The DSM receives a voltage reference from the adjustable pedals switch. The DSM interprets this and then operates the adjustable pedals in the commanded direction.

OBDII Code B2971 Ford - Pedal Position Input Short To Ground - AutoCodes.com — B2971 Ford Code - Pedal Position Input Short To Ground

What does this mean?

What are the Possible Causes of the DTC B2971 Ford?

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 Ford?

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 Ford 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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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B2971 Ford Code

1. What does the OBDII code B2971 mean on a Ford vehicle?

The code B2971 indicates a "Pedal Position Input Short to Ground," meaning there is an electrical short in the pedal position sensor circuit.

2. What are the common symptoms of code B2971 in a Ford?

Common symptoms include reduced engine performance, unresponsive throttle, illuminated check engine light, and potentially entering limp mode.

3. What causes the B2971 code to appear on a Ford?

Causes can include damaged wiring, a faulty pedal position sensor, corroded connections, or a short to ground in the sensor circuit.

4. How do I diagnose the B2971 code on my Ford?

Start by inspecting the pedal position sensor wiring for damage or corrosion, check for continuity in the circuit, and test the sensor's output voltage using a multimeter.

5. Can I drive my Ford with the B2971 code?

Driving with this code is not recommended as it can lead to reduced engine performance or poor throttle response, which could be unsafe.

6. How do I fix the B2971 code on a Ford vehicle?

Repairs may involve replacing the pedal position sensor, repairing or replacing damaged wiring, cleaning corroded connectors, or addressing the short circuit.

7. How much does it cost to fix the B2971 code on a Ford?

Costs can range from $100 to $300 depending on whether the sensor or wiring needs replacement and labor charges.

8. Can a faulty throttle body trigger the B2971 code?

While unlikely, a faulty throttle body could indirectly cause issues if it affects the pedal position sensor circuit.

9. Will clearing the B2971 code fix the issue permanently?

Clearing the code may temporarily turn off the warning light, but the underlying issue must be resolved to prevent the code from returning.

10. Is the pedal position sensor difficult to replace on a Ford?

Replacing the pedal position sensor is generally straightforward and can be done with basic tools, but consulting the vehicleâ€™s repair manual is recommended.