P0C37: Hybrid/EV Battery Temperature Sensor F Circuit Intermittent/Erratic
What to do
As P0BC2 — a temperature sensor fault costs performance and charging rate on a perfectly healthy pack, because the reading governs what the car permits.
What this code means
Temperature sensor F is reading erratically, which is a connection rather than a measurement, because a battery pack's thermal mass cannot change in an instant. The family's argument is at P0BC2 and the sixth-sensor note at P0C33.
Likely causes
Start here
- Faulty battery temperature sensor · specialist
- Corroded or loose connector · easy
Less common
- Damaged cell voltage sense harness · specialist
- Faulty battery pack sensor module · specialist
Symptoms
Components involved
Information, not instruction
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Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
Community experience
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What makes one worth reading:
- The car — make, model, year and engine. The same fault behaves differently on each.
- What you measured, not only what you replaced.
- What actually fixed it — or that nothing did, which is worth knowing too.
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