P0DC4

Hybrid/EV Battery Cell Balancing Circuit G

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$167–889 (est.)

Symptoms

Reduced electric range
Increased charging time
Check Engine Light Illuminated
Reduced overall vehicle power
Uneven battery discharge

Causes

Balancing module malfunction
Damage to the wiring to the battery cells
Battery cell failure
Problems with the battery control unit software
Corrosion of contacts in the balancing circuit

How to Fix

Diagnosis of battery cell condition
Checking the integrity of the balancing circuit
Testing the balancing module
Replacement of faulty battery cells if necessary
Updating the battery control unit software
Repair only from an authorized dealer

Related codes

P0DC5 P0DC6 P0DC3