14 Volt Power Module Status Terminal Circuit Low Voltage
Table of contents
P1F5A CHEVROLET Possible Causes
- Faulty 14 Volt Power Module
- 14 Volt Power Module harness is open or shorted
- 14 Volt Power Module circuit poor electrical connection
How do I fix code P1F5A CHEVROLET?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Tech Notes
- There is a factory service bulletin for the 2016-2017 Volt. The factory recommends check for open fuse.
- “This concern may be caused by an open 15 Amp fuse in the High Voltage Battery Disconnect Relay Assembly on the front part of the High Voltage Battery. If you experience one or more of the conditions above, check for an open 15A fuse in the Battery Disconnect Relay Assembly.”
Cost of diagnosing the P1F5A CHEVROLET code
The cost of diagnosing the P1F5A CHEVROLET code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1F5A CHEVROLET Description
The 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.