P0BB0

Hybrid/EV Battery Voltage Sense X Circuit Low

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–278 (est.)

Symptoms

Reduced vehicle power
Check Engine Light Illuminates
Hybrid system warning
The car goes into emergency mode
Reduced performance of the hybrid system

Causes

Battery voltage sensor fault
Damage to the sensor circuit wiring harness
Poor contact in connectors
Problems with the battery management module
High voltage battery fault

How to Fix

Check the integrity of the sensor circuit wiring harness
Inspect connectors and contacts for corrosion or damage
Check the functionality of the voltage sensor
Test the battery control module
Carry out diagnostics of the high-voltage battery

Related codes

P0BAF P0BB1 P0BB2