P0E66

Battery Charger Control Circuit Low

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

Warning light on dashboard
Reduced battery charging efficiency
Problems starting the car
Hybrid system power reduction
Unstable operation of electronics

Causes

Charger controller malfunction
Damage to wiring or connectors
Battery problems
Faulty charging sensors
Software problems

How to Fix

Check battery condition
Inspect wiring and connectors for damage
Check the operation of the charger controller
Scan the system for other errors
Update charging system software

Related codes

P0E65 P0E67 P0E68