P0BAD

Hybrid/EV Battery Voltage Sense W Circuit Intermittent/Erratic

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–89 (est.)

Symptoms

Check Engine light comes on
Hybrid system power reduction
Switching to emergency mode
Unstable operation of the hybrid system
Errors in battery charge calculation

Causes

Poor contact in the measuring circuit connectors
Wiring harness damage
Voltage sensor fault
Contact corrosion
Problems with the battery management module

How to Fix

Check the condition of the wiring harness and connectors
Clean contacts from corrosion
Check circuit resistance
Replace faulty voltage sensor
Update battery management module software

Related codes

P0BAC P0BAE P0BAF