U064A

Lost Communication With Hybrid/EV Battery Pack Current Sensor A

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine Light Is On
Reduced vehicle power
Problems charging the hybrid battery
The vehicle goes into emergency mode
Error message on the dashboard

Causes

Open or short circuit in wiring
Current sensor fault
Problems with the sensor connector
Hybrid ECU malfunction
Problems in the CAN network

How to Fix

Check the integrity of the wiring to the sensor
Check the sensor connector for corrosion and damage.
Check the resistance of the current sensor
Check the sensor supply voltage
Scan the CAN network for errors
Repair only from an authorized dealer

Related codes

U064B U064C U064D