P0AC0

Hybrid/EV Battery Pack Current Sensor A Circuit Range/Performance

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Reduced vehicle power
The car goes into emergency mode
Reducing the range of an electric vehicle
Incorrect battery level readings

Causes

Battery current sensor malfunction
Open or short circuit in the sensor circuit
Poor contact in sensor connectors
Wiring harness damage
Hybrid ECU malfunction

How to Fix

Check the continuity of the current sensor circuit
Inspect the connectors and contacts of the sensor
Check the resistance of the current sensor
Replace faulty current sensor
Flash or replace the ECU if necessary

Related codes

P0AC1 P0AC2 P0AC3