Get the app
Quick access from your home screen.
P1632 on Kia vehicles indicates that the engine control module (ECM) has detected an abnormal voltage signal from the battery voltage detection circuit that feeds the alternator regulator on the 1.8L engine. The ECM expects a specific voltage range on this circuit to properly regulate charging, and when the signal falls outside that range, it sets this code and illuminates the check engine light.
Guidance is general and written for Kia vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.
Get the app
Quick access from your home screen.