P0BB2

Hybrid/EV Battery Voltage Sense X Circuit Intermittent/Erratic

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–222 (est.)

Symptoms

Check Engine light comes on
Hybrid system power reduction
Unstable operation of the power plant
Reduced battery efficiency
Errors in the battery management system

Causes

Faulty battery voltage sensor
Damaged or corroded wiring
Poor contact in connectors
Problems with the battery management module
Damage to the insulation of high-voltage wires

How to Fix

Check the integrity of wiring and connectors
Test battery voltage sensors
Check connections in voltage control circuit
Replace faulty circuit components
Update Battery Management Module Software

Related codes

P0BB0 P0BB1 P0BB3