P0A08

DC/DC Converter Status Circuit

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$167–556 (est.)

Symptoms

Check Engine Light Is On
Reduced performance of the hybrid system
Problems charging a 12-volt battery
Disabling some electronic systems
Hybrid system warning

Causes

Open or short circuit in the status circuit of the DC/DC converter
Malfunction of the DC/DC converter itself
Connector problems or contact corrosion
Malfunction of the hybrid system control unit (HV ECU)
Problems with high voltage battery

How to Fix

Check the continuity of the DC/DC converter status circuit
Check connectors and contacts for corrosion or damage
Check the functionality of the DC/DC converter
Check the condition of the high-voltage battery
Diagnose the hybrid system control unit
Repair only from an authorized dealer

Related codes

P0A09 P0A0A P0A0B