Service Vehicle Soon Light came on...

[scknogas]

Well after 2,800 miles, the "Check Engine Light" comes on. I hit the button and speak to OnStar, they pull the code and tell me that it's "Fast Charging System Fault".

So, since I have the Fast Charging/DC charging installed (but never used yet), I ask does that mean the on-board charger which works off 120v and 240v or only the DC Fast charging. They and the specialist couldn't tell me. So, it's at the dealer now.

 

[Nashco]

A specific diagnostic code would be helpful for further discussion. You should try to get the dealer to note it in the paperwork if/when you bring it in.

Bryce

 

[scknogas]

Here's what they said....

SES LIGHT ON
ON STAR STATES: CONCERN IS A "QUICK CHARGE FAULT"
HISTORY CODES. HPCM LOSS COMMUNICATION WITH
SEVERAL MODULES.
U0140 U0128
RADIO CODES B1025.B1035.B1045 & B1055
NORMAL OPERATION AT THIS TIME. SPOKE TO TAC CASE#XXXXXXXXXXX
WAS ADVISED TO UPLOAD SESSION LOG TO GM. WAS LATER
ADVISED SYSTEM IS NORMAL AND TO CLEAR CODES AND CHARGE 
VEHICLE. PLEASE HAVE CUSTOMER DRIVE AND ADVISE.
CLEARED CODES AN CHARGED BATTERY.

So, anything from the codes?