- repair the above wiring.

 (2) If the wiring is correct:

 - replace the EIU-2 (1KS2) (Ref. AMM TASK 73-25-34-000-040) and (Ref. AMM TASK 73-25-34-400-040).
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E F 『 E C F M E E E E 56 E E E (3) If the fault continues:

 - replace the CONT-ZONE TEMPERATURE (8HK) (Ref. AMM TASK 21-63-34-000-001) and (Ref. AMM TASK 21-63-34-400-001).
 (4) 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 the Zone Controller Data on the ARINC Bus from the EIU to the FADEC on Engine 1
 1. Possible Causes
_______________
 - CONT-ZONE TEMPERATURE (8HK)

 - EIU-1 (1KS1)

 - ECU (4000KS)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 21-63-34-000-001 Removal of the Zone Controller (8HK)
 AMM 21-63-34-400-001 Installation of the Zone Controller (8HK)
 AMM 73-21-60-000-001 Removal of the Electronic Control Unit (ECU)
 AMM 73-21-60-400-001 Installation of the Electronic Control Unit (ECU)
 AMM 73-25-34-000-040 Removal of the Engine Interface Unit (EIU)
 AMM 73-25-34-400-040 Installation of the Engine Interface Unit (EIU)

 3. Fault Confirmation

__________________
 A. Test
 (1) Not applicable.
 4. Fault Isolation
_______________
 A. Replace the CONT-ZONE TEMPERATURE (8HK) (Ref. AMM TASK 21-63-34-000-001) and (Ref. AMM TASK 21-63-34-400-001).
 (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:

 - replace the ECU (4000KS) (Ref. AMM TASK 73-21-60-000-001) and (Ref. AMM TASK 73-21-60-400-001).
 B. No additional maintenance action is required if the fault is not
 confirmed.

 (1) Repeat the fault isolation procedure if the fault continues.
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 Loss of the Zone Controller Data on the ARINC Bus from the EIU to the FADEC on Engine 2
 1. Possible Causes
_______________
 - CONT-ZONE TEMPERATURE (8HK)

 - EIU-2 (1KS2)

 - ECU (4000KS)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 21-63-34-000-001 Removal of the Zone Controller (8HK)
 AMM 21-63-34-400-001 Installation of the Zone Controller (8HK)
 AMM 73-21-60-000-001 Removal of the Electronic Control Unit (ECU)
 AMM 73-21-60-400-001 Installation of the Electronic Control Unit (ECU)
 AMM 73-25-34-000-040 Removal of the Engine Interface Unit (EIU)
 AMM 73-25-34-400-040 Installation of the Engine Interface Unit (EIU)

 3. Fault Confirmation

__________________
 A. Test
 (1) Not applicable.
 4. Fault Isolation
_______________
 A. Replace the CONT-ZONE TEMPERATURE (8HK) (Ref. AMM TASK 21-63-34-000-001) and (Ref. AMM TASK 21-63-34-400-001).
 (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:

 - replace the ECU (4000KS) (Ref. AMM TASK 73-21-60-000-001) and (Ref. AMM TASK 73-21-60-400-001).
 B. No additional maintenance action is required if the fault is not
　
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