P0A3D

Drive Motor B Inverter Over Temperature

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$167–556 (est.)

Symptoms

Hybrid system power reduction
Warning message on dashboard
The vehicle goes into emergency mode
Increased noise from the cooling system
Motor shutdown

Causes

Inverter cooling system malfunction
Clogged radiator or ventilation ducts
Problems with coolant circulation
Malfunction of temperature sensors
Excessive load on the motor

How to Fix

Check the level and condition of the coolant
Clean the radiator and ventilation ducts
Check the operation of the cooling fans
Diagnostics of temperature sensors and their wiring
Check the performance of the inverter

Related codes

P0A3C P0A3E P0A3F