P0D21

Battery Charger A Output Voltage Too Low

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$167–556 (est.)

Symptoms

Reduced hybrid system efficiency
Reducing electric range
The Check Engine light comes on
The car goes into emergency mode
Error message on display

Causes

Charger A fault
Problems with high voltage battery
Open or short circuit in the charging circuit
Malfunction of the hybrid system control module
Problems with the wiring harness or connectors

How to Fix

Check the condition of the high-voltage battery
Check the integrity of the charging circuit
Diagnose charger A
Check connections and connectors in the system
Scan for other trouble codes
Repair only from an authorized dealer

Related codes

P0D22 P0D23 P0A80