P0BBC

Hybrid/EV Battery Voltage Sense Z Circuit Intermittent/Erratic

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
Incorrect battery level readings
Reduced power or performance
Problems charging the hybrid battery

Causes

Z Circuit Voltage Sensor Malfunction
Damaged or corroded wiring
Poor contact in connectors
Problems with the Battery Management Module (BMS)
Mechanical damage to battery cells

How to Fix

Check the integrity of the wiring and connectors of circuit Z
Test Z Circuit Voltage Sensor
Check connections to Battery Management Module (BMS)
Scan the system for other related trouble codes
If necessary, replace the sensor or repair the wiring
Repair only from an authorized dealer

Related codes

P0BBA P0BBB P0BBD