OBD Guide

P2801

Transmission Range Sensor B Circuit Range/Performance

P2801 is an OBD-II diagnostic trouble code meaning: Transmission Range Sensor B Circuit Range/Performance. Common causes: faulty gear range sensor, damage to the wiring or sensor connector. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Inability to start the engine
  • Transmission does not shift correctly
  • Check Engine Light Is On
  • The gear selector does not display correctly on the dashboard

Causes

  • Faulty gear range sensor
  • Damage to the wiring or sensor connector
  • Transmission control module (TCM) problems
  • Mechanical damage or contamination of the sensor

How to Fix

  1. Check the integrity of the sensor wiring and connectors
  2. Test the gear range sensor to ensure it meets specifications
  3. Check sensor signals using an OBD-II scanner when moving the selector lever
  4. Replacing the gear range sensor if necessary

Related codes

Error P2801 by Vehicle Brand

FAQ

What does the P2801 code mean?

P2801 is an OBD-II diagnostic trouble code that indicates: Transmission Range Sensor B Circuit Range/Performance

What causes a P2801 error code?

The most common causes of P2801 include: Faulty gear range sensor; Damage to the wiring or sensor connector; Transmission control module (TCM) problems; Mechanical damage or contamination of the sensor.

How do I fix a P2801 diagnostic trouble code?

To fix P2801: Check the integrity of the sensor wiring and connectors. Test the gear range sensor to ensure it meets specifications. Check sensor signals using an OBD-II scanner when moving the selector lever. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2801?

Limited driving only, diagnose soon

How much does it cost to fix P2801?

The estimated repair cost for P2801 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat