All codes
Service call
SC343
Yellow developer sleeve motor lock
BPCU / developer
Level B — stop, power-cycle may clear
First check
Y sleeve not turning. Pull Y PCU, check packed developer, then the sleeve motor.
What it means
Yellow developer sleeve motor lock. Confirm the exact subcode against the FSM for this serial — meaning can shift by generation.
Likely causes
- Y sleeve not turning. Pull Y PCU, check packed developer, then the sleeve motor.
On-site steps
Parts to have on the truck
- Y development motor
- Y PCU
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.