Code P1633 Ford Escape Keep Alive Power Voltage Too Low

Code P1633 – Keep Alive Power (KAPWR) Voltage Too Low

Ford Code P1633 Description

The Code is set when the KAPWR circuit has experienced a voltage interrupt.

Code P1633 Possible Causes

• KAPWR Circuit Open
• KAPWR Circuit intermittent

Note* Loss of KAPWR to the PCM results in immediate malfunction indicator lamp illumination and sets code P1633