P0E4C

Hybrid/EV Battery Pack Voltage Sense F Circuit High

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Hybrid system power reduction
Reducing electric range
Error message on display
The car goes into emergency mode

Causes

Battery voltage sensor fault
Open or short circuit in the sensor circuit
Poor contact in circuit connectors
Problems with the Battery Management Unit (BMS)
Contact corrosion in a high voltage system

How to Fix

Check the status of the battery voltage sensor
Diagnose the sensor circuit for open/short circuit
Check and clean connector contacts
Test the operation of the battery control unit
If necessary, replace the voltage sensor

Related codes

P0E4D P0E4B P0A80