DOC AIRBUS | TSM A320FLoss of the Oil Temperature Indication on Engine 1 or 2
TASK 79-00-00-810-815-A
Loss of the Oil Temperature Indication on Engine 1 or 2
1. Possible Causes
2. Job Set-up Information
A. Referenced Information
3. Fault Confirmation
Subtask 79-00-00-710-078-A ** ON A/C NOT FOR ALL
Subtask 79-00-00-810-067-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:38:21 UTC
Loss of the Oil Temperature Indication on Engine 1 or 2
1. Possible Causes
2. Job Set-up Information
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 24-41-00-861-002 | Energize the Aircraft Electrical Circuits from the External Power |
| AMM 71-51-43-000-001 | Removal of the Left Side Harness |
| AMM 71-51-43-400-001 | Installation of the Left Side Harness |
| AMM 71-51-44-000-007 | Removal of the Left Side Harness 238W0904 |
| AMM 71-51-44-400-007 | Installation of the Left Side Harness 238W0904 |
| 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) |
| AMM 79-32-15-000-040 | Removal of the Oil Temperature Sensor (Engine Condition Monitoring Sensor) |
| AMM 79-32-15-000-041 | Removal of the Oil Temperature Sensor (Engine Condition Monitoring Sensor) |
| AMM 79-32-15-400-040 | Installation of the Oil Temperature Sensor (Engine Condition Monitoring Sensor) |
| AMM 79-32-15-400-041 | Installation of the Oil Temperature Sensor (Engine Condition Monitoring Sensor) |
| ASM 793601 |
Subtask 79-00-00-710-078-A ** ON A/C NOT FOR ALL
A. Test
(1) Not applicable.
4. Fault Isolation(1) Not applicable.
Subtask 79-00-00-810-067-A ** ON A/C NOT FOR ALL
A. Procedure.
(a) If damage is found:
Subtask 79-00-00-810-067-B ** ON A/C NOT FOR ALL NOTE: The fault is triggered if the oil temperature sensor output signal is lost either at the EIU input or at the EIU output.
(1) Check carrefully electrical connector at the oil temperature sensor (4004EN) for looseness, damaged pins or contamination. (a) If damage is found:
- repair or replace as necessary.
- replace the SENSOR-OIL TEMP [4004EN] AMM 79-32-15-000-040 and AMM 79-32-15-400-040.
- do a check of the aircraft wiring between the oil temperature sensor (4004EN) and the EIU (1KS1) for open or short to ground ASM 793601 pin AA/1 to pin AA/10F. Pay particular attention to engine to pylon connectors 4005VC-A, 405VC-A, 4006VC-A and 406VC-A and to ground wire connections (9951DC, 9956DC and 9957DC) on Engine Fan Case (check for looseness or contamination).
- repair or replace the harness as necessary AMM 71-51-44-000-007 and AMM 71-51-44-400-007.
- replace the EIU-1 [1KS1] AMM 73-25-34-000-040 and AMM 73-25-34-400-040.
A. Procedure.
(a) If damage is found:
Subtask 79-00-00-710-079-A ** ON A/C NOT FOR ALL NOTE: The fault is triggered if the oil temperature sensor output signal is lost either at the EIU input or at the EIU output.
(1) Check carrefully electrical connector at the oil temperature sensor (4004EN) for looseness, damaged pins or contamination. (a) If damage is found:
- repair or replace as necessary.
- replace the SENSOR-OIL TEMP [4004EN] AMM 79-32-15-000-041 and AMM 79-32-15-400-041.
- do a check of the aircraft wiring between the oil temperature sensor (4004EN) and the EIU (1KS1) for open or short to ground ASM 793601 pin AA/1 to pin AA/10F. Pay particular attention to engine to pylon connectors 4005VC-A, 405VC-A, 4006VC-A and 406VC-A and to ground wire connections (9951DC, 9956DC and 9957DC) on Engine Fan Case (check for looseness or contamination).
- repair or replace the harness as necessary AMM 71-51-43-000-001 and AMM 71-51-43-400-001.
- replace the EIU-1 [1KS1] AMM 73-25-34-000-040 and AMM 73-25-34-400-040.
B. Test.
(1) With A/C electrical network supplied AMM 24-41-00-861-002 check that the oil temperature indication is back to normal on the lower ECAM.
(1) With A/C electrical network supplied AMM 24-41-00-861-002 check that the oil temperature indication is back to normal on the lower ECAM.