All codes
Service call
SC397
PCU EEPROM / life data error
BPCU / developer
Level B — stop, power-cycle may clear
First check
Replace the PCU. Do not try to rewrite life data in the field unless the bulletin says to.
What it means
PCU life EEPROM unreadable or life data corrupt.
Likely causes
- CRUM
- Bad PCU
On-site steps
Parts to have on the truck
- 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.