P1F5B GMC - 14 Volt Power Module Status Terminal Circuit High Voltage
- Faulty 14 Volt Power Module
- 14 Volt Power Module harness is open or shorted
- 14 Volt Power Module circuit poor electrical connection
- Engine Light ON (or Service Engine Soon Warning Light)
P1f5b Gmc DescriptionThe ECM uses two circuits to control and monitor the state of the 14V power module, often referred to as the accessory DC power control module.
The status circuit functions much like the F Terminal circuit on a generator equipped vehicle. A high side driver in the 14V power module applies a duty cycled voltage to the ECM. The duty cycle indicates 14V power module internal temperature and operational condition. The ECM will detect faults on the 14V power module status circuit when the vehicle is ON.
Need more help?Get the P1f5b Gmc code diagnosed by a professional: Find a repair shop in your area
P1F5B GMC CommentsHelp us improve AutoCodes.com. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the P1f5b Gmc code? Have you replaced any parts?
Any information is appreciated. Thanks