P0B69

Hybrid/EV Battery Voltage Sense J Circuit Range/Performance

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–278 (est.)

Symptoms

Check Engine light comes on
Reduced performance of the hybrid system
Reducing electric range
Incorrect display of battery charge level
Switching the vehicle into emergency mode

Causes

Malfunction of the battery voltage sensor
Open or short circuit in the measurement circuit
Poor contact in the measuring circuit connectors
Battery management module (BMS) malfunction
Contact corrosion in a high voltage system

How to Fix

Check the integrity of the measurement circuit wiring
Inspect and clean connector contacts
Check voltage sensor readings with a scanner
Test the battery management module
If necessary, replace faulty voltage sensors
Repair only from an authorized dealer

Related codes

P0B64 P0B6A P0B6B