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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What Are the Symptoms of P2890?
- Inconsistent transmission range sensor B readings
- Erratic shift quality
- Check Engine Light on
- Delayed gear changes
What Causes P2890? (Most Likely First)
- Worn transmission range sensor B component Very High
- Internal transmission wear affecting readings High
- Degraded transmission fluid Moderate
- TCM calibration needed Low
Can I Still Drive with P2890?
Short distances only. P2890 is rated moderate severity. Keep trips short and get it diagnosed soon rather than waiting for symptoms to worsen.
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
How Do You Diagnose P2890?
-
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)
Which Vehicles Commonly Get P2890?
- 2010-2020 Ford Escape
- 2012-2019 Honda Civic
- 2014-2020 Hyundai Sonata
- 2011-2020 Kia Sorento
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