DOC AIRBUS | TSM A320FCommunication failure between CIDS and all EPSUs
TASK 33-51-00-810-818-A
Communication failure between CIDS and all EPSUs
1. Possible Causes
2. Job Set-up Information
A. Referenced Information
3. Fault Confirmation
Subtask 33-51-00-740-050-A
Subtask 33-51-00-810-084-A
[Rev.8 from Aug 2018]
2026.04.04 04:32:09 UTC
Communication failure between CIDS and all EPSUs
1. Possible Causes
2. Job Set-up Information
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 23-73-00-740-005 | BITE-Test of the Cabin Intercommunication Data System (CIDS) through the CFDS |
| AMM 33-51-00-710-001 | Operational Test of the Emergency Lights |
Subtask 33-51-00-740-050-A
A. Do these tests
(1) Do the BITE-test of the Cabin Intercommunication Data-System (CIDS) AMM 23-73-00-740-005.
(2) Do the CIDS1/DEU-B test through the CFDS.
(3) Do the CIDS1/CIDS BUS test through the CFDS.
(4) Do the operational test of the emergency lighting system AMM 33-51-00-710-001.
4. Fault Isolation(1) Do the BITE-test of the Cabin Intercommunication Data-System (CIDS) AMM 23-73-00-740-005.
(2) Do the CIDS1/DEU-B test through the CFDS.
(3) Do the CIDS1/CIDS BUS test through the CFDS.
(4) Do the operational test of the emergency lighting system AMM 33-51-00-710-001.
Subtask 33-51-00-810-084-A
A. If the test gives a maintenance message, do the trouble shooting procedure related to the maintenance message.
NOTE: After the fault confirmation in above sequence and the fault isolation with the related removal of the failure you will not see the PTP-messages NO EPSU DATA and NO COMMUNICATION again.