P0EFC

Battery Charger A Input Voltage Sensor C Circuit Range/Performance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Unstable battery charging
Check Engine Light Illuminates
Reduced performance of the hybrid system
Problems starting the engine

Causes

Input voltage sensor fault
Open or short circuit in the sensor circuit
Poor contact in connectors
Charger problems
Control unit malfunction

How to Fix

Check the integrity of wiring and connectors
Check the functionality of the input voltage sensor
Check the voltage on the charger
Scan the control unit for other errors
Replace sensor if necessary

Related codes

P0EFD P0EFE P0EFF