DOC AIRBUS | TSM A320FFailure of the ADR3-SDI Pin-Programming
TASK 34-13-00-810-955-A
Failure of the ADR3-SDI Pin-Programming
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 34-13-00-740-273-A 4. Fault Isolation
Subtask 34-13-00-810-205-A
[Rev.8 from Aug 2018]
2026.04.04 04:32:31 UTC
Failure of the ADR3-SDI Pin-Programming
1. Possible Causes
- ADIRU-3 [1FP3]
- aircraft wiring
- ADM-L TOTAL PRESSURE [19FP1]
- ADM-R STATIC PRESSURE [19FP4]
- ADM-L STATIC PRESSURE [19FP5]
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 34-11-17-000-001 | Removal of the Air Data Module |
| AMM 34-11-17-400-001 | Installation of the Air Data Module |
| ASM 341203 | |
| AMM 34-12-34-000-001 | Removal of the ADIRU |
| AMM 34-12-34-400-001 | Installation of the ADIRU |
| AMM 34-13-00-740-002 | INTERFACE TEST of the ADR |
| ASM 341303 |
Subtask 34-13-00-740-273-A 4. Fault Isolation
Subtask 34-13-00-810-205-A
A. If the test gives the maintenance message WRG: SDI PIN PROG/ ADIRU3 (1FP3):
Subtask 34-13-00-740-274-A - remove the ADIRU-3 [1FP3] , AMM 34-12-34-000-001
- do a check of pins AB/1A,5A,6A on the rack connector.
- compare the state of the pins with the SDI PIN PROGRAMMING given in the ASM ASM 341203.
- repair the aircraft wiring : defective pins
- install the ADIRU3 AMM 34-12-34-400-001.
- swap the ADIRU3 and the ADIRU1.
- replace the ADIRU that you installed on side 2.
- get access to the ADM-L TOTAL PRESSURE [19FP1] AMM 34-11-17-000-001 (Para. 2.B.)
- disconnect the electrical connector of the ADM (19FP1)
- make sure that there is continuity between pins A/J,K and that there is an open circuit between pins A/L,M,N,P.
- repair the aircraft wiring ASM 341303
- connect the electrical connector of the ADM (19FP1)
- install the ADIRU3.
- get access to the ADM-R STATIC PRESSURE [19FP4] ADM-L STATIC PRESSURE [19FP5] , AMM 34-11-17-000-001 (Para. 2.B.)
- disconnect the electrical connector of the ADM (19FP4)
- make sure that there is continuity between pins A/J,K,N,P and that there is an open circuit between pins A/L,M.
- repair the aircraft wiring
- connect the electrical connector of the ADM (19FP4)
- install the ADIRU3.
- disconnect the electrical connector of the ADM (19FP5)
- make sure that there is continuity between pins A/J,K,M,P and that there is an open circuit between pins A/L,N.
- If the pin programming is incorrect:
repair the aircraft wiring
connect the electrical connector of the ADM (19FP5)
install the ADIRU3.
- If the pin programming is correct:
replace the ADM (19FP1) AMM 34-11-17-000-001 and AMM 34-11-17-400-001.
. If the fault continues:
replace the ADM (19FP4).
* If the fault continues:
replace the ADM (19FP5).
B. Do the test given in Para. 3.