OBD Guide
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B2972

Pedal Position Input Short To Battery

B2972 is an OBD-II diagnostic trouble code meaning: Pedal Position Input Short To Battery. Common causes: wiring harness damage, malfunction of the accelerator pedal position sensor. Estimated repair cost: $56–167.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Incorrect operation of the accelerator pedal
  • Spontaneous increase in engine speed
  • Check Engine Light Illuminates
  • Switching to emergency engine operation mode

Causes

  • Wiring harness damage
  • Malfunction of the accelerator pedal position sensor
  • Short circuit in the sensor circuit
  • Problems with contacts in connectors

How to Fix

  1. Check the integrity of the wiring harness
  2. Check the resistance and voltage at the pedal position sensor
  3. Inspect connectors and contacts for oxidation or damage
  4. Replace the pedal position sensor if necessary
  5. Clean or replace damaged wires

Related codes

P2122P2123P2127P2128

FAQ

What does the B2972 code mean?

B2972 is an OBD-II diagnostic trouble code that indicates: Pedal Position Input Short To Battery

What causes a B2972 error code?

The most common causes of B2972 include: Wiring harness damage; Malfunction of the accelerator pedal position sensor; Short circuit in the sensor circuit; Problems with contacts in connectors.

How do I fix a B2972 diagnostic trouble code?

To fix B2972: Check the integrity of the wiring harness. Check the resistance and voltage at the pedal position sensor. Inspect connectors and contacts for oxidation or damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2972?

Limited driving only, diagnose soon

How much does it cost to fix B2972?

The estimated repair cost for B2972 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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