P0B14

Hybrid/EV Battery Pack Voltage Sense B Circuit

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
Incorrect battery level display
The car may go into emergency mode
Increased fuel consumption (for hybrids)

Causes

Open or short circuit in the sensor circuit
Poor contact in the measuring circuit connectors
Section B voltage sensor fault
Problems with the battery management module
Contact corrosion in a high voltage system

How to Fix

Check the integrity of the wiring and connectors of the measurement circuit
Test voltage sensors of section B
Check contacts for corrosion and damage
Scan the battery management module for additional errors
Repair only from an authorized dealer

Related codes

P0B13 P0B15 P0B16