Fuel Level Sensor "B" Circuit High
The P2068 code means the vehicle's onboard diagnostic system has detected: Fuel Level Sensor "B" Circuit High. 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 means Fuel Level Sensor "B" Circuit High: the engine computer sees the signal from the second fuel level sender stuck at the top of its range. On most vehicles that points to an open circuit, such as a broken wire, a corroded tank connector, or a worn sender.
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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