P0A0D

High Voltage System Interlock Circuit A High

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–278 (est.)

Symptoms

Hybrid/electric system does not turn on
Check engine light comes on
Error message on the dashboard
Reduced power or failure of the power plant
It is not possible to switch to driving mode

Causes

Open or short circuit in HVIL circuit
Damaged high voltage system connector
Corrosion of contacts in the interlock circuit
Malfunction of the high-voltage system control unit
Mechanical damage to HVIL wiring harness

How to Fix

Diagnose the HVIL circuit using a multimeter
Check all high-voltage system connectors for damage
Inspect the HVIL wiring harness for damage.
If necessary, replace damaged circuit components
Reset the error code and check if it returns

Related codes

P0A0E P0A0F P0A09