- do a check of the connectors for looseness, bent pins, corrosion or contamination.
(a) If damage is found:
- clean, repair or replace as required (Ref. AMM TASK 71-51-44-000-002) and (Ref. AMM TASK 71-51-44-400-002).
(b) If no damage is found and fault continues while maintenance message is never confirmed during the test:
- replace the PRESS SW-HCU (4102KS) (Ref. AMM TASK 78-31-16-000-040) and (Ref. AMM TASK 78-31-16-400-040).
(c) If the fault continues:
- repair or replace the defective harnesses J5 or J6 or thrust reverser harness (Ref. AMM TASK 71-51-44-000-002) and (Ref. AMM TASK 71-51-44-400-002).
(d) 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).
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E F 『 E C F M E E E E 56 E E E B. Do the test given in Para. 3.A.
(1) No additional maintenance action is required if the fault is not confirmed.
(2) Repeat the fault isolation procedure if the fault continues.
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