All codes
Service call
SC610
ADF communication error
BCommunicationsCommon field call
Level B — stop, power-cycle may clear
First check
Lift and reseat the ADF. Inspect the hinge harness — pinched after someone forced the ADF over.
What it means
Engine cannot talk to the ARDF/SPDF. Unseated ADF, cable in the hinge, or ADF board.
Likely causes
- ADF unseated
- Hinge harness
- ADF board
On-site steps
Parts to have on the truck
- ADF hinge harness
- ADF board
- ARDF/SPDF
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.