B2155
Low Severity (Level 1)Seat Horizontal Motor Position Out of Range
B2155 usually means seat Horizontal Motor Position Out of Range.
Can you still drive with B2155?
✅Safe to drive — this is an informational or minor issue. Schedule diagnosis at your convenience.
Typical repair cost: $100 – $800
Severity Level 1 — Low
This code indicates a minor issue that is unlikely to cause immediate driveability problems. You can typically continue driving but should have the vehicle inspected at your earliest convenience.
Common Symptoms
- Power seats behaving erratically or inconsistently
- System performance degrades under specific conditions (temperature, load, etc.)
- Power seats working sometimes, failing other times
- Diagnostic trouble code (DTC) stored in module memory
Possible Causes
- Seat motor/module failing — output signal drifts outside expected range, common with age (80k-120k miles)
- Wiring or connector with intermittent high resistance — causes signal to fluctuate, especially with temperature or vibration
- Mechanical issue with the power seat system causing the sensor/actuator to operate outside its designed range
- Contamination or debris affecting seat motor/module operation — dirt, oil, or moisture interfering with readings
- Software/calibration issue in the control module — may need reprogramming rather than parts replacement
Common Fixes
- Scan vehicle with a professional-grade OBD2 scanner to read all stored codes and freeze frame data — note the conditions when the code set ($41-104 at shop, free at auto parts store for basic scan)
- Visually inspect the power seat system wiring harness and connectors — look for chafed wires, melted insulation, green corrosion, loose pins, or rodent damage (often free to check yourself, $91 diagnostic fee at shop)
- Replace seat motor/module — slow degradation over time is the most common cause of range/performance codes, especially on vehicles with 100k+ miles ($100-800)
- Check for vacuum leaks, exhaust leaks, or mechanical issues that could be causing the power seat system to see out-of-range conditions ($82 diagnostic smoke test + repair)
- Update control module software/firmware — some range/performance codes are fixed by a PCM reflash from the dealer ($159 at dealer)
Estimated Repair Cost
These are estimated costs based on generic repair data. Actual costs may vary depending on your vehicle, location, and labor rates.
Frequently Asked Questions
What does B2155 mean?
B2155 stands for "Seat Horizontal Motor Position Out of Range". B2155 usually means seat Horizontal Motor Position Out of Range.
Can you drive with B2155?
Safe to drive — this is an informational or minor issue. Schedule diagnosis at your convenience.
How much does it cost to fix B2155?
Repair costs for B2155 typically range from $100 to $800, depending on your vehicle make, model, and local labor rates. Common fixes include: Scan vehicle with a professional-grade OBD2 scanner to read all stored codes and freeze frame data — note the conditions when the code set ($41-104 at shop, free at auto parts store for basic scan); Visually inspect the power seat system wiring harness and connectors — look for chafed wires, melted insulation, green corrosion, loose pins, or rodent damage (often free to check yourself, $91 diagnostic fee at shop); Replace seat motor/module — slow degradation over time is the most common cause of range/performance codes, especially on vehicles with 100k+ miles ($100-800).
Will B2155 clear itself?
Explore Repair Costs
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