DOC AIRBUS | TSM A320FLoss of all Identification Connector Data for DAC engines
TASK 73-20-00-810-976-A
Loss of all Identification Connector Data for DAC engines
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 73-20-00-710-322-A ** ON A/C NOT FOR ALL
Subtask 73-20-00-810-278-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:35:32 UTC
Loss of all Identification Connector Data for DAC engines
1. Possible Causes
- J14 Identification Connector
- ECU [4000KS]
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 73-21-90-860-001 | Programming of the Identification Plug (Push-Pull Design) for SAC engines |
| AMM 73-29-00-710-040 | Operational Test of the FADEC on the ground (with Engine Motoring) |
Subtask 73-20-00-710-322-A ** ON A/C NOT FOR ALL
A. Test
(1) Do the operational test of the FADEC on the ground (with engine non motoring) AMM 73-29-00-710-040.
4. Fault Isolation(1) Do the operational test of the FADEC on the ground (with engine non motoring) AMM 73-29-00-710-040.
Subtask 73-20-00-810-278-A ** ON A/C NOT FOR ALL
A. If the test gives the maintenance message J14(WRONG), BSV(CL):
(a) Replace the J14 Identification Connector AMM 73-21-90-000-002 AMM 73-21-90-400-002 or Do a Re-programming of the Identification Connector (Push-pull Design only) AMM 73-21-90-860-001.
(2) If "DAC CONFIG" is displayed (ID plug is correct):
(a) Remove, clean, and reinstall the ID plug AMM 73-21-90-000-002 AMM 73-21-90-400-002
1 If the fault continues :
Subtask 73-20-00-710-323-A ** ON A/C NOT FOR ALL - Verify that the J14 Identification Connector configuration is correct (DAC ID plug):
NOTE: The ID plug can be checked on the MCDU screen. Access reporting functions, then select the LRU Idenfication screen.
Line 4 of the LRU Identification screen will display: - "EGT MON" or "SAC CONFIG" for a SAC ID plug
- "DAC CONFIG" for a DAC ID plug
(a) Replace the J14 Identification Connector AMM 73-21-90-000-002 AMM 73-21-90-400-002 or Do a Re-programming of the Identification Connector (Push-pull Design only) AMM 73-21-90-860-001.
(2) If "DAC CONFIG" is displayed (ID plug is correct):
(a) Remove, clean, and reinstall the ID plug AMM 73-21-90-000-002 AMM 73-21-90-400-002
1 If the fault continues :
- Replace the Identification Connector AMM 73-21-90-000-002 and AMM 73-21-90-400-002
- Replace ECU [4000KS] AMM 73-21-60-000-001 AMM 73-21-60-400-001
B. Do the test given in Para. 3.A.