P0E49

Hybrid/EV Battery Pack Voltage Sense F Circuit

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–278 (est.)

Symptoms

Check Engine light comes on
Hybrid system power reduction
The car goes into emergency mode
Unstable operation of the hybrid system
Reduced fuel efficiency

Causes

Open or short circuit in the sensor circuit
Battery voltage sensor fault
Problems with the Battery Management Module (BMS)
Corrosion of contacts in connectors
Wiring harness damage

How to Fix

Check the continuity of the voltage sensor circuit
Check the condition of connectors and contacts
Test battery voltage sensors
Check the operation of the battery management module
Replace damaged components if necessary

Related codes

P0E4A P0E4B P0E4C