P0DE2

Hybrid/EV Battery Cell Balancing Circuit N Stuck Off

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–278 (est.)

Symptoms

Reduced electric vehicle range
Increased charging time
Battery warning on instrument panel
Performance degradation in EV mode
System self-diagnosis may limit power

Causes

Faulty balancing resistor in the problematic module
Open balancing control circuit
Damage to the wiring harness to the battery cell
BMS module software error
Corrosion of contacts in the connectors of the balancing system

How to Fix

Read advanced BMS parameters to identify problem cell
Check the resistance of the balancing circuits with a multimeter
Inspect connectors and wires for damage
Test the operation of the balancing module
If necessary, replace the faulty balancing resistor or cell module

Related codes

P0DE0 P0DE1 P0DE3