ACR Electronics PLB-350C - Manual (Page 27)

Y1-03-0244B 27
This message appears if Self-Test has passed, but the battery is low. Take
the beacon to an authorized Service Center for a battery replacement.
NOTES regarding Self-Test logic:
1.) When one of the tests fail, the system bypasses the remaining tests
and goes to SELF-TEST FAIL
2.) The only exception to #1 is that if the battery fails, the other tests are
still performed. The system will tell the user if there are other system
failures by flashing SELF-TEST FAIL. If there are no failures other than
battery life, the system flashes SELF-TEST PASS, then BATT LOW.
BATT LOW