P0DAE

Hybrid/EV Battery Cell Balancing Circuit A Stuck Off

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–222 (est.)

Symptoms

Reduced electric vehicle range
Increased charging time
Uneven heating of the battery compartment
Check Engine Light Illuminated
Reduced overall performance

Causes

Faulty balancing resistor in module A
Problems with the balancing relay
Open or short circuit in the balancing circuit
Battery management module (BMS) malfunction
Corrosion of contacts in the balancing circuit

How to Fix

Diagnostics of the balancing chain using a scanner
Check the resistance of balancing resistors
Inspect the wiring harness and contacts for damage
Test the operation of the balancing relay
If necessary, replace the faulty balancing module

Related codes

P0DAF P0DB0 P0AFA