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 TASK 73-25-00-810-846
 Loss of Channel B Data from the ECU on Engine 2
 1. Possible Causes
_______________
 - EIU-2 (1KS2)

 - ECU (4000KS)

 - wiring from the ECU 2 (4000KS) to the EIU 2 (1KS2)

 2. Job Set-up Information
______________________
 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 73-25-34-710-043 Operational Test of the Engine Interface Unit
 ASM 73-25/10

 3. Fault Confirmation
__________________
 A. Do the operational test of the Engine Interface Unit (EIU) through the Centralized Fault Display System (CFDS) (Ref. AMM TASK 73-25-34-710-043).
 4. Fault Isolation
_______________
 A. If the test gives the maintenance message EIU 2 : NO FADEC 2B DATA:
 - replace the ECU (4000KS) (Ref. AMM TASK 73-21-60-000-001) and (Ref. AMM TASK 73-21-60-400-001).
 (1) If the fault continues:

 - replace the EIU-2 (1KS2) (Ref. AMM TASK 73-25-34-000-040) and (Ref. AMM TASK 73-25-34-400-040).

 (2) If the fault continues:

 - do a check and repair the wiring from the ECU 2 (4000KS) to the EIU 2 (1KS2) pins J4/24, 11 to pins AA/14K, 15J (Ref. ASM 73-25/10).
 B. Do the test given in Para. 3.A.
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 TASK 73-25-00-810-847

 Failure of the Oil Low Pressure and Ground Relays on Engine 1
 1. Possible Causes
_______________
 - EIU-1 (1KS1)

 - RELAY-OIL LOW PRESS AND GROUND, ENG1 (10KS1)

 - RELAY-OIL LOW PRESS AND GROUND, ENG1 (11KS1)

 - wiring from the EIU 1 (1KS1) to the relays (10KS1) or/and (11KS1)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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 73-25-34-710-043 Operational Test of the Engine Interface Unit
 ASM 73-25/09

 3. Fault Confirmation
__________________
 A. Do the operational test of the Engine Interface Unit (EIU) through the Centralized Fault Display System (CFDS) (Ref. AMM TASK 73-25-34-710-043).
 4. Fault Isolation
_______________
 A. If the test gives the maintenance message CHECK 10KS1 RELAY CIRCUIT OR EIU1:
 - replace the RELAY-OIL LOW PRESS AND GROUND, ENG1 (10KS1) or/and the RELAY-OIL LOW PRESS AND GROUND, ENG1 (11KS1) (Ref. ASM 73-25/09).
 (1) If the fault continues:

 - replace the EIU-1 (1KS1) (Ref. AMM TASK 73-25-34-000-040) and (Ref. AMM TASK 73-25-34-400-040).

 (2) If the fault continues:

 - do a check and repair the wiring from the EIU 1 (1KS1) to the relays (10KS1) or/and (11KS1) pin AB/9D to pins AA/X, Z of the two relays (Ref. ASM 73-25/09).
 B. Do the test given in Para. 3.A.
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 TASK 73-25-00-810-848

 Failure of the Oil Low Pressure and Ground Relays on Engine 2
 1. Possible Causes
_______________
 - EIU-2 (1KS2)

 - RELAY-OIL LOW PRESS AND GROUND, ENG2 (10KS2)

 - RELAY-OIL LOW PRESS AND GROUND, ENG2 (11KS2)

 - wiring from the EIU (1KS2) to the relays (10KS2) or/and (11KS2)

 2. Job Set-up Information
　
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本文鏈接地址：A320 Trouble Shooting Manual 排故手冊(cè) 發(fā)動(dòng)機(jī)燃油和控制 2(37)