Failure of the CFDIU Detected by the RMP1

TASK 31-32-00-810-872-A
Failure of the CFDIU Detected by the RMP1

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 23-13-00-740-001	BITE Test of the Radio Management
ASM 313202
AMM 31-32-34-000-001	Removal of the CFDIU
AMM 31-32-34-400-001	Installation of the CFDIU

3. Fault Confirmation
Subtask 31-32-00-865-120-A

A. Make sure that this(these) circuit breaker(s) is(are) closed:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	COM/RMP/1	2RG1	G10

Subtask 31-32-00-740-188-A

B. Test
Do the BITE test of the Radio Management (RMP 1) AMM 23-13-00-740-001.

4. Fault Isolation
Subtask 31-32-00-810-121-B

A. If the test gives the maintenance message CFDIU(1TW)/RMP1(1RG1):

(1) If the fault continues:

do a check and repair the wiring from the CFDIU (1TW) pins AA/2B, 2C to the first terminal block , ASM 313202.

Subtask 31-32-00-740-189-A

B. Do the test given in Para. 3.B.

[Rev.8 from Aug 2018] 2026.04.04 04:29:53 UTC