Code B1218:00-48 and B1310:14-48

[mike1307]

Hi all. 2011 raptor won't start randomly. Battery good, fuses and relays good. Everything on the dash lits normally but it won't crank. Disconnect and reconnet battery, it starts right away. Hit or miss when it will start again. Im getting B1218:00-48 and B1310:14-48. Also B10F1 but it been there since forever. Checked connections to bcm, pcm and rtm module. Tried with both keys same results. Remote start is same. Works random. Any ideeas how to fix it? Thanks

 

[Canuck714]

Start checking all the grounds.
I've mentioned this before, but there are a ton of grounds on the truck and none are bare metal contact.
Body to frame under passenger side. A bunch on the rad support, several on the firewall and fenders and one on the BCM and another in Drivers footwell.

 

[mike1307]

Did that 2 weeks ago. Wire brush and carbon grease. Worked perfect till 2 days ago whe it start acting up