P0E4B

Hybrid/EV Battery Pack Voltage Sense F Circuit Low

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–278 (est.)

Symptoms

Check Engine light comes on
Hybrid system power reduction
The car goes into emergency mode
Increased fuel consumption (for hybrids)
Reduced battery efficiency

Causes

Battery voltage sensor fault
Damage to the measuring circuit wiring harness
Poor contact in connectors
Low or faulty battery
Problems with the hybrid system control module

How to Fix

Check the condition of the battery
Inspect the voltage measurement circuit for damage
Check contacts and connectors in the circuit
Test voltage sensors
If necessary, replace faulty components

Related codes

P0E4A P0E4C P0E4D