P1A8F – 14 Volt Power Module Current Sensor Overcurrent

P1A8F Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P1A8F Possible Causes

Faulty Starter/Generator Control Module (SGCM),Starter/Generator Control Module (SGCM) harness is open or shorted,Starter/Generator Control Module (SGCM) circuit poor electrical connection

P1A8F Description

The Starter/Generator Control Module (SGCM) monitors the 14-volt power module current sensor for an overcurrent condition to protect the MOSFET. In the hardware, an overcurrent protection circuit is used to limit the current, and software monitors for an overcurrent reading in the sensor.