B2106
Moderate Severity (Level 3)Throttle Position Input Out of Range High
B2106 usually means throttle Position Input Out of Range High.
Can you still drive with B2106?
⚠️Short-distance driving is usually OK, but have this diagnosed within a week to prevent further damage.
Typical repair cost: $50 – $800
Severity Level 3 — Moderate
This code indicates a moderate issue that may affect vehicle performance and fuel economy. Continued driving is possible in most cases, but prompt diagnosis and repair are recommended to prevent further damage.
Common Symptoms
- Accelerator pedal working sometimes, failing other times
- System performance degrades under specific conditions (temperature, load, etc.)
- Check Engine Light illuminated
- Diagnostic trouble code (DTC) stored in module memory
Possible Causes
- Throttle position sensor 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 throttle position sensor / throttle body causing the sensor/actuator to operate outside its designed range
- Contamination or debris affecting throttle position sensor 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 ($9-104 at shop, free at auto parts store for basic scan)
- Visually inspect the throttle position sensor / throttle body wiring harness and connectors — look for chafed wires, melted insulation, green corrosion, loose pins, or rodent damage (often free to check yourself, $82 diagnostic fee at shop)
- Replace throttle position sensor — slow degradation over time is the most common cause of range/performance codes, especially on vehicles with 100k+ miles ($50-800)
- Check for vacuum leaks, exhaust leaks, or mechanical issues that could be causing the throttle position sensor / throttle body to see out-of-range conditions ($101 diagnostic smoke test + repair)
- Update control module software/firmware — some range/performance codes are fixed by a PCM reflash from the dealer ($168 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 B2106 mean?
B2106 stands for "Throttle Position Input Out of Range High". B2106 usually means throttle Position Input Out of Range High.
Can you drive with B2106?
Short-distance driving is usually OK, but have this diagnosed within a week to prevent further damage.
How much does it cost to fix B2106?
Repair costs for B2106 typically range from $50 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 ($9-104 at shop, free at auto parts store for basic scan); Visually inspect the throttle position sensor / throttle body wiring harness and connectors — look for chafed wires, melted insulation, green corrosion, loose pins, or rodent damage (often free to check yourself, $82 diagnostic fee at shop); Replace throttle position sensor — slow degradation over time is the most common cause of range/performance codes, especially on vehicles with 100k+ miles ($50-800).
Will B2106 clear itself?
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