All codes
Service call
SC804
Startup without video input end
BController / HDD
Level B — stop, power-cycle may clear
First check
Controller never received video. Sister of 800.
What it means
Startup without video input end. Confirm the exact subcode against the FSM for this serial — meaning can shift by generation.
Likely causes
- Controller never received video. Sister of 800.
On-site steps
Parts to have on the truck
- Controller
- Engine I/F
Related codes
Confirm the subcode and part number in the FSM for this serial. Raicoh is a field companion, not a replacement for the book.