All codes
Service call
SC682
TD sensor communication error
BPCU / developer
Level B — stop, power-cycle may clear
First check
TD sensor bus. Dev unit harness or the unit itself.
What it means
TD sensor communication error. Confirm the exact subcode against the FSM for this serial — meaning can shift by generation.
Likely causes
- TD sensor bus. Dev unit harness or the unit itself.
On-site steps
Parts to have on the truck
- Development unit
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.