_______________
 **ON A/C 051-099,
 A. If the operational test gives the maintenance message CHECK OIL PRESS SWITCH 3EN1:
 - replace the RELAY-ENG 1 OIL LOW PRESS (3EN1).
 (1) If the fault continues:

 - replace the DETECTOR UNIT-TPIS (2GV) (Ref. AMM TASK 32-49-34-000-001) and (Ref. AMM TASK 32-49-34-400-001).

 (2) If the fault continues:

 - do a check of the wiring from the TPIS (2GV) pin AB/11A to the relay (3EN1) pin A/6 (Ref. ASM 32-49/01).
 (a) If there is no continuity:

 - repair the related wiring.

 (b) If there is continuity:

 - replace the CTL SW-ENG/MASTER 1 (3KC).
 1_ If the fault continues:
 - do a check and repair the:
 . wiring from the circuit breaker (2EN1) to the relay (3EN1)
 pin A/X
 . wiring from the relay (3EN1) pin A/Z to the control switch
 (3KC) pin 3A (Ref. ASM 79-36/01).
 **ON A/C ALL

 B. Do the test given in Para. 3.B.

 TASK 32-49-00-810-821
 Loss of the ENG 2 OIL LOW PRESS Signal from the Relay to the TPIS
 1. Possible Causes
_______________
 - DETECTOR UNIT-TPIS (2GV)

 - RELAY-ENG 2 OIL LOW PRESS (3EN2)

 - wiring from TPIS detector unit (2GV) pin AB/12A to relay (3EN2) pin A/6

 - wiring from the circuit breaker (2EN2) to relay (3EN2) pin A/X

 - wiring from the relay (3EN2) to low oil pressure switch (4000EN)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 32-49-00-710-001 Operational Test of the Tire Pressure Indicating
 System (TPIS) AMM 32-49-34-000-001 Removal of the TPIS Detection Unit (2GV) AMM 32-49-34-400-001 Installation of the TPIS Detection Unit (2GV) ASM 32-49/01 ASM 79-36/01 ASM 79-36/01
 3. Fault Confirmation
__________________
 A. Make sure that this(these) circuit breaker(s) is(are) closed:
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
121VU ENGINE/ENG2/OIL/PRESS 2EN2 N42
 B. Test
 (1) Do the operational test of the TPIS (Ref. AMM TASK 32-49-00-710-001).

 4. Fault Isolation
_______________
 **ON A/C 051-099,
 A. If the operational test gives the maintenance message CHECK OIL PRESS SWITCH 3EN2:
 - replace the RELAY-ENG 2 OIL LOW PRESS (3EN2).
 (1) If the fault continues:

 - replace the DETECTOR UNIT-TPIS (2GV) (Ref. AMM TASK 32-49-34-000-001) and (Ref. AMM TASK 32-49-34-400-001).

 (2) If the fault continues:

 - do a check of the wiring from TPIS detector unit (2GV) pin AB/12A to relay (3EN2) pin A/6 (Ref. ASM 32-49/01).
 (a) If there is no continuity:

 - repair the related wiring.

 (b) If there is continuity:

 - do a check and repair the wiring from the circuit breaker (2EN2) to relay (3EN2) pin A/X wiring from the relay (3EN2) to low oil pressure switch (4000EN), pin A/Z to pin A/3 (Ref. ASM 79-36/01) and (Ref. ASM 79-36/01).
 **ON A/C ALL
 B. Do the test given in Para. 3.B.

 **ON A/C 051-099,
 TASK 32-49-00-810-822
 Loss of the Shock Absorber Signal from the LGCIU 2 to the TPIS
 1. Possible Causes
_______________
 - LGCIU-2 (5GA2)

 - DETECTOR UNIT-TPIS (2GV)

 - wiring from the TPIU (2GV) to the LGCIU 2 (5GA2)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 32-31-71-000-001 Removal of the LGCIU (5GA1, 5GA2)
 AMM 32-31-71-400-001 Installation of the LGCIU (5GA1, 5GA2)
 AMM 32-49-00-710-001 Operational Test of the Tire Pressure Indicating

 System (TPIS)
 AMM 32-49-34-000-001 Removal of the TPIS Detection Unit (2GV)
 AMM 32-49-34-400-001 Installation of the TPIS Detection Unit (2GV)
　
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