Driver Seat Track Position Sensor Circuit Range/Performance
What does B0027 mean?
The B0027 code means the vehicle's onboard diagnostic system has detected: Driver Seat Track Position Sensor Circuit Range/Performance. This is a low severity code.
Common Symptoms
- Seat memory recall inaccurate
- Seat moves to wrong saved position
- Seat position indicator incorrect
- Intermittent seat positioning errors
- Memory seat warning light on
Probable Causes (Ranked by Likelihood)
- Worn or dirty seat track position sensor Very High
- Seat track debris affecting sensor readings High
- Loose or intermittent sensor connector Moderate
- Seat track mechanical binding Low
Step-by-Step Diagnostic Procedure
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Read seat position sensor values with scan tool during seat movement
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Check for smooth voltage transition through full seat travel
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Clean seat track rails and sensor area of debris
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Inspect sensor mounting for looseness
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Compare sensor readings to known good specifications
Frequently Asked Questions
What causes range/performance codes?
The sensor is providing a signal, but the values are outside the expected range or are erratic. This is often caused by a dirty or worn sensor rather than a complete failure.
Can I clean the sensor instead of replacing it?
In many cases, cleaning the seat track and sensor with electrical contact cleaner can resolve the issue, especially if debris is interfering with sensor readings.
Will this affect my mirrors or steering wheel position?
It may. Many vehicles link the driver mirror and telescope steering positions to the seat memory system, so an inaccurate seat sensor can throw off the entire memory recall.