Hi guys. Read through this thread and others in relation to my '04 4.8is w/80k.

The trifecta came on after replacing my battery (always on, never intermittent). I never heard any clicking or noticed any effect on drivability. Indy rebuilt actuator and replaced/programmed transfer case module which cleared some related codes but their scan still shows fault to transfer case. Any possibility the transfer case is not the issue? Could it be the DSC/ABS control module or a sensor?