TM 1-2840-252-23-3
FAULT CODE BC
400 Hz RESOLVER REFERENCE
Fault Code BC, 400 Hz Resolver Reference
Figure 140
G-54
FAULT CODE BC, 400 Hz RESOLVER REFERENCE EXPANDED INSTRUCTIONS
Refer to numbered steps in figure 140.
Step 1.
Cycle DECU power to determine if fault is due to a DECU problem or was caused by an interrupt to
both reversionary power supplies.
Step 3.
An internal DECU fault exists. No further troubleshooting is possible.
FAULT CODES
10
11
NVM CHECKSUM
12
NVM ENGINE HISTORY
13
NVM FAULT DATA
14
NVM ACCUMULATED FAULT DATA
15
NVM WRITE TEST
16
NVM STORAGE INCOMPLETE
17
NVM HISTORY DATA INCONSISTENT
18
MINOR CYCLE NOT COMPLETED
1B
EMS CYCLE NOT COMPLETED
1C
A/D CONVERSION NOT COMPLETED
1E
RAM FAILURE
1F
Op CODE ERROR
1
REPLACE DECU
Fault Codes 10-1 F, Internal DECU Faults
Figure 141
G-122
