R  C. If the CPC 2 (12HL) CLASS 3 FAULTS gives the maintenance messsage EIU SIGNAL REPLACED (17) caused in flight phase other than 7 or 8: - do the operational test of the engine interface unit (Ref. AMM TASK 73-25-34-710-040). 
R R  (1) If the test gives a different maintenance message refer to the Fault Symptom List.
 (2) If the fault continues: - do a check and repair the wiring between: CPC 2 (12HL) AB/8D and EIU 2 (1KS2) AB/G1, CPC 2 (12HL) AB/7D and EIU 1 (1KS2) AB/G1 (Ref. ASM 21-31/02).
 D. Do the test as given in the Para. 3.A.
 5. Close-up________
 A. Put the aircraft back to its initial configuration.

 TASK 21-31-00-810-817

 LGCIU Signal Mismatch
 1. Possible Causes
_______________
 - CONTROLLER-CABIN PRESSURE 1 (11HL)

 - CONTROLLER-CABIN PRESSURE 2 (12HL)

 - wiring

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 21-31-34-000-001 Removal of the Cabin Pressure Controller (11HL,12HL) AMM 21-31-34-400-001 Installation of the Cabin Pressure Controller (11HL,12HL)
 AMM 32-69-00-740-001  BITE Check Landing Gear Control Interface Unit (LGCIU) using MCDU to Ensure that Continuous BITE is Operative
 ASM 21-31/02
 3. Fault Confirmation
__________________
 A. Not applicable, you cannot confirm this fault on the ground.
 4. Fault Isolation
_______________
 A. If the CPC 1 (11HL) CLASS 3 FAULTS gives the maintenance messsage LGCIU SIG. REPLACED (35):
 - do the BITE test of the landing gear (Ref. AMM TASK 32-69-00-740-001). R
R (1) If the test gives a different maintenance message refer to the Fault R Symptom List.
 (2) If the fault continues:

 - do a check and repair the wiring between: CPC 1 (11HL) AB/1B and LGCIU 1 (5GA1) AB/C3, CPC 1 (11HL) AB/2B and LGCIU 2 (5GA2) AB/C3 (Ref. ASM 21-31/02).

 (3) If the fault continues:

 - replace the CONTROLLER-CABIN PRESSURE 1 (11HL) (Ref. AMM TASK 21-31-34-000-001) and (Ref. AMM TASK 21-31-34-400-001).

R  B. If the CPC 2 (12HL) CLASS 3 FAULTS gives the maintenance messsage LGCIU SIG. REPLACED (35): - do the BITE test of the landing gear (Ref. AMM TASK 32-69-00-740-001). 
R R  (1) If the test gives a different maintenance message refer to the Fault Symptom List.
 (2) If the fault continues: - do a check and repair the wiring between: CPC 2 (12HL) AB/2B and LGCIU 2 (5GA2) AB/C3, CPC 2 (12HL) AB/1B and LGCIU 1 (5GA1) AB/C3 (Ref. ASM 21-31/02).
 (3) If the fault continues: - replace the CONTROLLER-CABIN PRESSURE 2 (12HL) (Ref. AMM TASK 21-31-34-000-001) and (Ref. AMM TASK 21-31-34-400-001).
 C. Do the test as given in the Para. 3.A.
 5. Close-up________
 A. Put the aircraft back to its initial configuration.

 TASK 21-31-00-810-818

 DMU receives no Data from the CPC 1
 1. Possible Causes
_______________
 - DMU (1TV)

 - wiring

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 21-31-00-710-002 Operational Test of the Pressure Control and
 Monitoring AMM 31-36-00-710-001 Test of the DMU (1TV) AMM 31-36-34-000-001 Removal of the Data Management Unit (DMU) (1TV) AMM 31-36-34-400-001 Installation of the Data Management Unit (DMU) (1TV) ASM 21-31/03 ASM 21-31/03
 3. Fault Confirmation
__________________
 A. Do the Test of the DMU (Ref. AMM TASK 31-36-00-710-001).
 NOTE : Make sure that the circuit breakers 1HL, 2HL and 3HL are closed
____
 during the test.

 4. Fault Isolation
_______________
 A. If the test gives the maintenance message NO PRESS CONTROL 1 DATA:
 - do the operational test of the pressure control and monitoring system (Ref. AMM TASK 21-31-00-710-002).
 (1) If the fault continues:

 - replace the DMU (1TV) (Ref. AMM TASK 31-36-34-000-001) and (Ref. AMM TASK 31-36-34-400-001).

 (2) If the fault continues:

 - do a check and repair the wiring of the signal ARINC 429 OUT (BUS 1.1) from the CPC 1 (11HL) to the DMU (1TV) (Ref. ASM 21-31/03) and (Ref. ASM 21-31/03).
 B. Do the test given in para. 3.
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞21-31-00∞∞∞∞∞∞∞∞∞∞Page 246
　
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