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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Common Symptoms
- Check Engine Light on
- Fuel gauge reads incorrectly
- Low fuel warning may be inaccurate
- Fuel range estimate unreliable
- No drivability symptoms
Probable Causes (Ranked by Likelihood)
- 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
Step-by-Step Diagnostic Procedure
-
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
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.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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