P2881 moderate

Transmission Output Speed Sensor B Circuit

The P2881 code means the vehicle's onboard diagnostic system has detected: Transmission Output Speed Sensor B Circuit. This is a moderate severity code.

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Keep driving?
Short distances only
DIY difficulty
hard
Estimated cost
$300 - $1,200 (parts and labor)
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Common Symptoms

  • Abnormal output speed sensor B operation
  • Transmission shifting irregularly
  • Check Engine Light on
  • Possible transmission overheating

Probable Causes (Ranked by Likelihood)

  • Faulty output speed sensor B Very High
  • Wiring damage in output speed sensor B circuit High
  • Contaminated or low transmission fluid Moderate
  • TCM internal malfunction Low

Frequently Asked Questions

What is the output speed sensor B?

The output speed sensor B is a component within the transmission system that helps manage shift quality and overall transmission operation.

Can I drive with this code?

Short distance driving may be possible at reduced speeds, but have it diagnosed soon to prevent further damage.

Is this expensive to fix?

Repair costs depend on whether the issue is wiring, a sensor, or internal component failure. Wiring repairs are typically under $500, while internal repairs can exceed $1,000.

Mechanics Guide Step-by-step diagnosis

Step-by-Step Diagnostic Procedure

  1. Scan for DTCs and review freeze frame data

  2. Test output speed sensor B operation

  3. Inspect wiring and connectors for damage

  4. Monitor output speed sensor B parameters with scan tool

Sources 1

This page is built from documented references. Verify against your own service info before repair work.

  • SAE J2012Diagnostic Trouble Code Definitions (defines the generic OBD-II code ranges)

Commonly Affected Vehicles

  • 2010-2020 Ford F-150
  • 2012-2019 Ram 1500
  • 2011-2020 Chevrolet Silverado
  • 2013-2020 Toyota Tacoma

Related Codes

P2880P2882

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