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AutoCodes - Generic - B2971

B2971 Code - Pedal Position Input Short To Ground

- Code Popularity: 796 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B2971?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • 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)
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How to Fix the DTC B2971?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2971 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

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

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Code B2971 comments

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