U064C

Lost Communication With Hybrid/EV Battery Pack Current Sensor C

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–278 (est.)

Symptoms

Check Engine light comes on
The hybrid system goes into emergency mode
Reduced vehicle power
Problems with charging a high-voltage battery
Possible error messages on the dashboard

Causes

Open or short circuit in the current sensor circuit
Battery current sensor malfunction
Connector problems or contact corrosion
Malfunction of the hybrid system control module
Damage to the high voltage system wiring harness

How to Fix

Check the continuity of the current sensor circuit
Check connectors and contacts for corrosion
Test the current sensor with a multimeter
Check error codes in the hybrid system control module
If necessary, replace the current sensor or repair the wiring
Repair only from an authorized dealer

Related codes

U064A U064B U064D