Table 5. SPCN Error Codes (continued)
Error Code Description Action/
Possible Failing FRU
1021 1B01 Load fault on +12V 1. I/O drawer power supply
Location: U0.2-V1
2. If power supply U0.2-V2 is present (no
cooling unit), use the power supply you
removed from U0.2-V1 to replace
U0.2-V2
3. Secondary I/O backplane
Location: U0.2-P1
1021 1B02 Load fault on +5V 1. I/O drawer power supply
Location: U0.2-V1
2. If power supply U0.2-V2 is present (no
cooling unit), use the power supply you
removed from U0.2-V1 to replace
U0.2-V2
3. Secondary I/O backplane
Location: U0.2-P1
1021 1B03 Load fault on +3.3V 1. I/O drawer power supply
Location: U0.2-V1
2. If power supply U0.2-V2 is present (no
cooling unit), use the power supply you
removed from U0.2-V1 to replace
U0.2-V2
3. Secondary I/O backplane
Location: U0.2-P1
1021 1B04 Load fault on -12V 1. I/O drawer power supply
Location: U0.2-V1
2. If power supply U0.2-V2 is present (no
cooling unit), use the power supply you
removed from U0.2-V1 to replace
U0.2-V2
3. Secondary I/O backplane
Location: U0.2-P1
1021 1B05 Load fault on +1.8V 1. I/O drawer power supply
Location: U0.2-V1
2. If power supply U0.2-V2 is present (no
cooling unit), use the power supply you
removed from U0.2-V1 to replace
U0.2-V2
3. Secondary I/O backplane
Location: U0.2-P1
1021 1B06 Load fault on +2.5V 1. I/O drawer power supply
Location: U0.2-V1
2. If power supply U0.2-V2 is present (no
cooling unit), use the power supply you
removed from U0.2-V1 to replace
U0.2-V2
3. Secondary I/O backplane
Location: U0.2-P1
176 Service Guide