Transmission Range Sensor B Circuit Range/Performance
The P2890 code means the vehicle's onboard diagnostic system has detected: Transmission Range Sensor B Circuit Range/Performance. This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- hard
- Estimated cost
- $300 - $1,200 (parts and labor)
Read and clear transmission codes. Many trans codes are caused by low or burnt fluid -- check level and color before assuming the worst.
Basic scanners only read engine codes. This reads transmission, ABS, and airbag too.
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Common Symptoms
- Inconsistent transmission range sensor B readings
- Erratic shift quality
- Check Engine Light on
- Delayed gear changes
Probable Causes (Ranked by Likelihood)
- Worn transmission range sensor B component Very High
- Internal transmission wear affecting readings High
- Degraded transmission fluid Moderate
- TCM calibration needed Low
Frequently Asked Questions
What causes transmission range sensor B performance issues?
Performance issues are typically caused by component wear, fluid contamination, or calibration drift that causes readings outside expected parameters.
Should I change the transmission fluid?
Fresh fluid is always beneficial, but this code usually indicates a specific component issue that needs direct attention.
How is this diagnosed?
A technician uses a professional scan tool to monitor live transmission data and compare readings against manufacturer specifications.
Mechanics Guide Step-by-step diagnosis
Step-by-Step Diagnostic Procedure
-
Read DTCs and analyze live data
-
Compare transmission range sensor B readings to specifications
-
Check transmission fluid condition
-
Perform transmission range sensor B adaptation reset
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 Escape
- 2012-2019 Honda Civic
- 2014-2020 Hyundai Sonata
- 2011-2020 Kia Sorento
Related Codes
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