AutoCodes – Generic – B2972

B2972 Code - Pedal Position Input Short To Battery

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: B2972 indicates Pedal Position Input Short To Battery.
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 1,128

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 B2972 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 B2972 - Pedal Position Input Short To Battery - AutoCodes.com — B2972 Code - Pedal Position Input Short To Battery

What does this mean?

What are the Possible Causes of the DTC B2972?

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 B2972?

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 B2972 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.

Need more information about the B2972 code?

Need more information on how to fix the B2972 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2972 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B2972 Ford — Pedal Position Input Short To Battery
B2972 Lincoln — Pedal Position Input Short To Battery
B2972 Mercury — Pedal Position Input Short To Battery

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 B2972 Code

1. What are the common symptoms of OBDII code B2972 (Pedal Position Input Short To Battery)?

- Common symptoms include erratic throttle response, engine stalling, and the illumination of the check engine light.

2. What are the possible causes of OBDII code B2972?

- The code B2972 can be caused by a short circuit in the wiring harness, a faulty accelerator pedal position sensor, or a malfunctioning engine control module.

3. How can I diagnose OBDII code B2972?

- Diagnosing code B2972 involves using a scan tool to retrieve the code, inspecting the wiring harness for any visible damage, and testing the accelerator pedal position sensor for proper operation.

4. What are some repair tips for fixing OBDII code B2972?

- Repair tips include repairing or replacing any damaged wiring in the pedal position sensor circuit, replacing a faulty accelerator pedal position sensor, and reprogramming or replacing the engine control module if necessary.

5. Can I drive my vehicle with OBDII code B2972?

- It is not recommended to drive your vehicle with code B2972, as it can lead to unsafe driving conditions and potential further damage to the vehicle's components.

6. How much does it typically cost to repair OBDII code B2972?

- The cost of repairing code B2972 can vary depending on the extent of the damage and the specific components that need to be replaced. It is advisable to consult with a professional mechanic for an accurate estimate.

7. Will resetting the fault codes make OBDII code B2972 go away?

- Resetting the fault codes may temporarily clear the check engine light, but if the underlying issue causing code B2972 is not addressed, the code is likely to return.

8. Is OBDII code B2972 a serious issue?

- OBDII code B2972 should be taken seriously as it can affect the proper operation of the vehicle's throttle system, leading to potential safety hazards and engine performance issues.

9. Can a DIY enthusiast fix OBDII code B2972?

- While some DIY enthusiasts may be able to diagnose and repair code B2972, it is recommended to seek the expertise of a professional mechanic due to the complexity of the throttle system and electronic components involved.

10. How can I prevent OBDII code B2972 from occurring in the future?

- Regularly inspecting and maintaining the accelerator pedal position sensor, checking for any signs of wiring damage, and addressing any issues promptly can help prevent code B2972 from occurring in the future.