It’s a 2014 GM Volt with fault code P0AFA. Car turns on but will not move, after a failed charge and ‘unable to charge’ message. How to solve this problem and clear fault code? Use the VXDIAG method with a laptop or Xtool D7S to clear the fault code. Many users say the xtool D7S can clear this code.
Here is the clue:
Xtool D7S or D8/D9 indead will clear the P0AFA code. Autel MaxiSys scanners also capable.
Meth path:
HPCM2 module > Special Functions> Reset Functions>Hybrid/EV Battery Contactor Open Reasons Reset> Reset.
The tool will walk you through the process; there is a point where you need to shut off the ignition, open and close the drivers door and then wait a few minutes for the modules to go to sleep.
One of our customers used the Xtool d7s to clear the codes, and the car totally shut down, had to buy and install a new 12 volt battery. Do not recommend ‘Clear all DTC’s’.
Gettng VXDiag vcx nano gm adapter with 2 CAN buses support and need software (GDS2) is not that hard as you think. And it’s way cheaper, than buying a dedicated scanner, i.e Xtool D7S.
Read how to clear P0AFA fault code with VXDIAG GDS2: