[rrenehan]

2008 Pontiac G6 S4 4D suddenly stopped running, or starting. Would crank, but not turnover fully.
Reviewing total electric, changed and centered entire 3 tray fuse assessment.

Engine Light (one): 0 Codes on OBD II ANCER310

After fully reviewing, found two ignition/relay dismounts (concerns).

1.) inside fusebox/PCU severed dual server joint 7.5+7.5 (or 15a)
2.) PCM Guard (under 80w) missing in action M.I.A. (on/off value unkown)

 

[boomer]

Welcome to the club. The first picture looks like a vampire tap. One fuse would power the standard circuit for the fuse box position you found it in, the other would power whatever after-market accessory previously attached to the red wire.

Hope you can get it working again.

 

[rrenehan]

... well it has to be the 80a breaker. Like I stitched the jumper wire to it like glue, then modified the ground into a full 4 braid 19" silver neck w/ a bolt at the end (from bottom solenoid) and neglected to attach to upper starter area.
It cranked until full ignition forced to shut off both crank, and ignition sensors. (no damage... its detoured)

... well I remounted the dual 7.5s inside. Probably weren't the whole difficulty.
The 80a appears to be the only solution, being that the engine relay housing had a missing switch.
reordering one without the pcm circuit breaker.