P0C37

Hybrid/EV Battery Temperature Sensor F Circuit Intermittent/Erratic

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$28–94 (est.)

Symptoms

Hybrid system power reduction
Flashing "Check Hybrid System" indicator
Extended battery charging time
Unstable charge level indicators
Battery overheating in hot weather

Causes

Open or short circuit in the sensor circuit
Oxidized sensor connector contacts
Defect of the temperature sensor itself
Problems with insulation of wiring in the battery compartment
Battery management module (BMS) malfunction

How to Fix

Conduct sensor resistance diagnostics at different temperatures
Check the integrity of the wiring and contacts in the battery compartment
Scan BMS memory for additional trouble codes
Replace battery temperature sensor if necessary
Update BMS module software

Related codes

P0C36 P0C38 P0C39