ECS receives no Data from CIDS

TASK 21-63-00-810-858-A
ECS receives no Data from CIDS

1. Possible Causes

ZONE CONTROLLER [8HK]

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 21-63-00-710-004	Operational Test of the Cockpit and Cabin Temperature Control with CFDS/MCDU
ASM 216301
AMM 21-63-34-000-001	Removal of the Zone Controller
AMM 21-63-34-400-001	Installation of the Zone Controller
AMM 23-73-00-740-003	BITE-Test of the Cabin Intercommunication Data System (CIDS) through the PTP

3. Fault Confirmation
Subtask 21-63-00-710-147-A ** ON A/C NOT FOR ALL

A. Do the operational test of the cockpit and cabin temperature-control system with CFDS/MCDU AMM 21-63-00-710-004.

4. Fault Isolation
Subtask 21-63-00-810-153-A ** ON A/C NOT FOR ALL

A. If the test gives the maintenance message NO DATA FROM CIDS:

Do the bite test of the CIDS AMM 23-73-00-740-003.

(1) If the test gives a different maintenance message, do the related trouble shooting procedure.
(2) If the fault continues:
(a) Do a check and repair if necessary the connector pin at the connector 8HK/BA for the CIDS option.

If CIDS option is installed pin BA3 to ground.
If CIDS option is not installed pin BA3 is not used and should show OPEN CONTACT.

(3) If the fault continues:
(a) Do a check and repair the ARINC 429 wiring as necessary of the signal INPUT CIDS from: ASM 216301

the CIDS Director (101RH) connector AA/6A to the Zone Controller (8HK) connector AA/3A.
the CIDS Director (101RH) connector AA/6B to the Zone Controller (8HK) connector AA/B3.

(4) If the fault continues:

replace the ZONE CONTROLLER [8HK] AMM 21-63-34-000-001 and AMM 21-63-34-400-001.

Subtask 21-63-00-710-148-A ** ON A/C NOT FOR ALL

B. Do the test given in Para. 3.

5. Close-up
Subtask 21-63-00-860-082-A ** ON A/C NOT FOR ALL

A. Put the aircraft back to its initial configuration.

[Rev.8 from Aug 2018] 2026.04.04 04:25:05 UTC