(2) Repeat the fault isolation procedure if the fault continues.

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 TASK 73-20-00-810-973
 Loss of all Identification Connector Data
 1. Possible Causes
_______________
 - J14 Identification Connector

 - ECU (4000KS)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 73-21-60-000-001 Removal of the Electronic Control Unit (ECU) AMM 73-21-60-400-001 Installation of the Electronic Control Unit (ECU) AMM 73-21-90-000-002 Removal of the Engine Identification Connector AMM 73-21-90-400-002 Installation of the Engine Identification Connector AMM 73-29-00-710-040 Operational Test of the FADEC on the Ground (with
 Engine Non motoring)

 3. Fault Confirmation
__________________
 A. Test
 (1) Do the operational test of the FADEC on the ground (with engine non motoring) (Ref. AMM TASK 73-29-00-710-040).
 4. Fault Isolation
_______________
 A. If the test gives the maintenance message J14 (ID FAULT), ECU:
 - Verify that the J14 Identification Connector (ID plug) is installed:
 (1) If an ID plug is not installed:

 - Install J14 Identification Connector (Ref. AMM TASK 73-21-90-400-002)

 (2) If an ID plug is installed:

 - verify that the ID plug is correct:
 NOTE : The ID plug can be checked on the MCDU screen. Access
____ reporting functions, then select the LRU Identification screen.
 Line 1 of the LRU Identification screen shows the engine model designation as "CFM56-5BX/ZZZ".
 - The value of X represents the engine thrust rating

 - If the value of X is equal to "X", the ID plug is invalid.

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 E 56 E E E (a) If the ID plug is invalid:

 - replace the ID plug (Ref. AMM TASK 73-21-90-000-002) and (Ref. AMM TASK 73-21-90-400-002)
 (b) If the ID plug is valid:
 - remove, clean, and reinstall the ID plug (Ref. AMM TASK 73-21-90-000-002) and (Ref. AMM TASK 73-21-90-400-002)

 - If the fault continues, replace the ID plug (Ref. AMM TASK 73-21-90-000-002) and (Ref. AMM TASK 73-21-90-400-002).

 (3) If the fault continues:
 - replace the ECU (4000KS) (Ref. AMM TASK 73-21-60-000-001) and (Ref. AMM TASK 73-21-60-400-001).
 B. Do the test given in Para. 3.A.
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 TASK 73-20-00-810-974
 Loss of all Identification Connector Data for SAC engines
 1. Possible Causes
_______________
 - J14 Identification Connector

 - ECU (4000KS)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
AMM 73-21-60-000-001 Removal of the Electronic Control Unit (ECU)(4000KS)
 AMM 73-21-60-400-001 Installation of the Electronic Control Unit
 (ECU)(4000KS) AMM 73-21-90-000-002 Removal of the Engine Identification Connector AMM 73-21-90-400-002 Installation of the Engine Identification Connector AMM 73-21-90-860-001 Programming of the Identification Plug (Push-Pull
 Design)
 AMM 73-29-00-710-040 Operational Test of the FADEC on the Ground (with
 Engine Non motoring)

 3. Fault Confirmation
__________________
 A. Test
 (1) Do the operational test of the FADEC on the ground (with engine non motoring) (Ref. AMM TASK 73-29-00-710-040).
 4. Fault Isolation
　
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