All codes
Service call
SC184
CIS transmission error
BScanner / optics
Level B — stop, power-cycle may clear
First check
CIS serial/video link. Reseat CIS harness, replace CIS.
What it means
CIS transmission error. Confirm the exact subcode against the FSM for this serial — meaning can shift by generation.
Likely causes
- CIS serial/video link. Reseat CIS harness, replace CIS.
On-site steps
Parts to have on the truck
- CIS
- CIS harness
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.