P0B1C

Hybrid/EV Battery Pack Voltage Sense C Circuit High

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$167–889 (est.)

Symptoms

Check Engine light comes on
Hybrid system power reduction
The car goes into emergency mode
Reduced performance of the hybrid system
Error message on display

Causes

High voltage battery fault
Problems in the voltage measurement circuit (open circuit, short circuit)
Battery management module (BMS) malfunction
Corrosion or poor contact in connectors
Problems with balancing battery cells

How to Fix

Check the condition of the high-voltage battery
Diagnose the voltage measurement circuit
Check connectors and connections in the circuit
Test the Battery Management Module (BMS)
Balance battery cells if necessary

Related codes

P0B1B P0B1D P0AFA