Did you pull those DTCs with a generic OBD2 scan tool? With the Drive Mode errors there should be more than just O2 sensor DTCs setting. ForScan has the capability to pull DTCs from all modules.
Do you have anything aftermarket installed such as lighting, audio, GPS, OBD2 plug-ins, etc? That’s the most common cause of these types of issues.
Also note that if the BCM loses communication with the headlamp switch, it defaults the headlights on as a failsafe. I’ve seen far to many...
You need to figure out why the fuse blew. The fuse is never a root cause, it’s the result of a high current draw or short to ground. With the grille shutters being removed that’s the first place to check. Inspect for damage to the harness from chafing/pinching/etc and inspect the connectors for...
Yes, you can safely remove it and drive. Be sure to index mark the driveshaft on both ends to keep it in balance. You will also need to replace all of the bolts; they are one time use only.
There is a TSB for 2017 models to add springs to the wastegate linkages to dampen the noise when cold. You can order the parts and install them yourself if you’d like.
The dealer is looking at online threads to “figure it out”? :facepalm:
Dealer do not escalate repairs to internet searches. They escalate to hotline and then their field engineer.
Here’s the knowns we’ve established from this ridiculous saga:
1. You bought a used truck
2. You ran it 2.5...
As the ejector valve is part of the driver’s side CAC tube, I would access/remove it and inspect the connection ports for a casting flash restriction or damage. The slightest issue with the ejector will cause that DTC.
Hi most common issue is Fuse 27 in the Battery Junction Box (under hood fuse box). Pull the fuse and inspect for damage/melted pins. If it’s damaged there is a kit to relocate the fuse to a new location in the BJB.
Ok here’s the definition, it’s an electrical DTC, meaning it’s likely a wiring/pin issue between the TCCM and the Shift motor. Transfer case replacement will not resolve a shift motor position electrical DTC. It sounds like they need to double check the harness, I would suggest running a...
P1853:00 — Transfer Case Contact Plate 'B' Short Circuit to Ground: No Sub Type Information
Fault sets when TCCM C2371A pin 2 detects a short to ground. Shift motor moves are prevented when this DTC is set. The TCCM will not complete mode change if a change in shift motor position is required.
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