Fuel Level Sensor 'B' Circuit
The P2068 code means the vehicle's onboard diagnostic system has detected: Fuel Level Sensor 'B' Circuit. This is a low severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- easy
- Estimated cost
- $100 - $400 (parts and labor)
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What Are the Symptoms of P2068?
- Check Engine Light on
- Fuel gauge reads incorrectly
- Low fuel warning may be inaccurate
- Fuel range estimate unreliable
- No drivability symptoms
What Causes P2068? (Most Likely First)
- Failed fuel level sensor B Very High
- Damaged wiring between sensor and ECM High
- Corroded connector at fuel tank Moderate
- ECM input circuit fault Low
Can I Still Drive with P2068?
Yes, but fix soon. P2068 is rated low severity. It is not an immediate stop-driving fault, but it will not clear itself — book the repair rather than ignoring the light.
Frequently Asked Questions
What does P2068 mean?
P2068 indicates: Fuel Level Sensor 'B' Circuit. The ECM has detected an issue with this sensor or circuit.
Is P2068 serious?
Not urgent, but should be repaired to maintain accuracy and efficiency.
Can I diagnose this myself?
Basic diagnosis is possible with a scan tool and multimeter. Check wiring, connector condition, and sensor readings. Compare data to manufacturer specifications.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose P2068?
-
Read fuel level sensor B data on scan tool
-
Compare sensor B reading to sensor A
-
Inspect wiring at fuel tank connector
-
Measure sensor resistance at various fuel levels
Sources 2
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)
- Cross-checked against the SAE J2012:2002 DTC table (2026-08-27)archived scan of the SAE standard — readable copy, not SAE’s current edition
Which Vehicles Commonly Get P2068?
- 2010-2020 Toyota Camry 2.5L
- 2012-2019 Honda Civic 2.0L
- 2008-2018 Ford F-150 5.0L
- 2011-2020 Chevrolet Silverado 5.3L
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