Battery Temperature Sensor Circuit Range/Performance
The DURAMAX-P0514 (Duramax) diesel fault code means: Battery Temperature Sensor Circuit Range/Performance. This is a moderate severity code.
- Keep driving?
- Yes, with caution
- DIY difficulty
- intermediate
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What Are the Symptoms of DURAMAX-P0514?
- Check Engine Light on
- Possible charging voltage that seems too high or too low
What Causes DURAMAX-P0514? (Most Likely First)
- Faulty battery temperature sensor High
- Wiring or connector fault Moderate
Can I Still Drive with DURAMAX-P0514?
Yes, with caution. DURAMAX-P0514 is rated moderate severity. Keep trips short and get it diagnosed soon rather than waiting for symptoms to worsen.
Frequently Asked Questions
What does P0514 mean on a Duramax?
P0514 means Battery Temperature Sensor Circuit Range/Performance. The battery temperature reading does not make sense against what the control module expects from other temperature inputs.
Is P0514 a Duramax-specific code?
No. P0514 is a generic OBD-II code defined by SAE J2012, so it means the same thing on any vehicle that sets it. The exact conditions GM uses to set it on its diesels are in GM service information.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose DURAMAX-P0514?
Compare the battery temperature reading with ambient temperature after the truck has sat overnight.
Inspect the sensor and its connector.
Check the sensor circuit.
Sources 1
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines P0514 as a generic OBD-II code)
P0514 on Other Platforms
The same code ID appears across other engines, vehicles, and equipment. Diagnostic flow varies by platform — see the matching breakdown:
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