- 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 71-50-00-810-811
Loss of All Signals from the EIU to the FADEC on Engine 1
1. Possible Causes
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- EIU-1 (1KS1)
- ENGINE/1/FADEC A/AND EIU 1 (2KS1)
- ENGINE/ENG1/FADEC B/AND EIU (4KS1)
- connector J3 at the ECU (4000KS)
- harness J3
- ECU (4000KS)
2. Job Set-up Information
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A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R 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 R (ECU)(4000KS) AMM 73-25-34-000-040 Removal of the Engine Interface Unit (EIU) (1KS1,1KS2) AMM 73-25-34-400-040 Installation of the Engine Interface Unit (EIU) (1KS1,1KS2) AMM 73-29-00-710-040 Operational Test of the FADEC on the Ground (with
Engine non Motoring)
ASM 73-25/05
ASM 73-25/10
3. Fault Confirmation
__________________
A. Table of the circuit breakers used in this procedure:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU ENGINE/1/FADEC A/AND EIU 1 2KS1 A04 121VU ENGINE/ENG1/FADEC B/AND EIU 1 4KS1 R41
B. Do the operational test of the FADEC 1A on the ground (with engine non motoring) (Ref. AMM TASK 73-29-00-710-040).
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4. Fault Isolation
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A. If the test gives the maintenance message EIU (ARINC), J3:
- do a visual check of the connector J3 at the ECU (4000KS) for integrity (Ref. ASM 73-25/10).
(1) If the fault continues do a check of the status of circuit breakers 2KS1 and 4KS1 (Ref. ASM 73-25/05).
(a) If the circuit breakers 2KS1 and 4KS1 are closed:
- do a check for 28VDC at EIU 1 pins AC/9, 11.
1 If there is 28VDC:
_
- replace the EIU-1 (1KS1) (Ref. AMM TASK 73-25-34-000-040) and (Ref. AMM TASK 73-25-34-400-040).
2 If there is not 28VDC:
_
- do a check of the wiring between the circuit breakers 2KS1 and 4KS1 and the EIU 1 pins AC/9, 11.
- if there is no continuity:
- repair the wiring.
- if there is continuity:
- replace the ENGINE/1/FADEC A/AND EIU 1 (2KS1) and/or ENGINE/ENG1/FADEC B/AND EIU (4KS1).
(b) If the circuit breakers 2KS1 and/or 4KS1 are open:
- close them.
1 If they trip again:
_
- replace the EIU-1 (1KS1) (Ref. AMM TASK 73-25-34-000-040) and (Ref. AMM TASK 73-25-34-400-040).
a If the fault continues:
_
- do a check of the wiring for short to ground between the circuit breakers 2KS1 and/or 4KS1 and the EIU 1.
- if the wiring is not correct:
- repair it.
- if the wiring is correct:
- replace the ENGINE/1/FADEC A/AND EIU 1 (2KS1) and/or ENGINE/ENG1/FADEC B/AND EIU (4KS1).
(2) If the fault continues:
- replace the harness J3.
(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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Loss of all Signals from the EIU to the FADEC on Engine 2
1. Possible Causes
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本文链接地址：A320 Trouble Shooting Manual 排故手册 动力装置 POWER PLANT(18)
