3. Fault Confirmation
__________________
A. Test
(1) Do the operational test of the FADEC 1B on the ground (with engine non motoring) (Ref. AMM TASK 73-29-00-710-040).
4. Fault Isolation
_______________
A. If the test gives the maintenance message T5 SNSR, J13, ECU or T5 SNSR, J13, ECU*:
- do a check for open or short to ground of the harness HJ13 between the ECU (4000KS) and the 6 o'clock junction box, between the 6 o'clock junction box and the T5 sensor (Ref. ASM 73-25/18).
(1) If the wiring is not correct:
- repair the above wiring.
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- disconnect the harness HJ13 from the ECU (4000KS) and do a resistance check of the cable J13 between: . pins 11 and 23 (0.5 to 10 ohms) . pins 11 and 24 ( > to megohms) . pin 11 and the ground ( > 10 megohms).
(a) If the resistance values are in the specified limits:
- replace the ECU (4000KS) (Ref. AMM TASK 73-21-60-000-001) and (Ref. AMM TASK 73-21-60-400-001).
(b) If the resistance values are out of the specified limits:
- disconnect the connector CJ13 at the 6 o'clock junction box and do a resistance check of the cable CJ13 between: . pins 2 and 11 (0.5 to 10 ohms) . pins 2 and 12 ( > 10 megohms) . pin 2 and the ground ( > 10 megohms) (Ref. AWM 71-51-09).
1 If the resistance values are in the specified limits:
_
- replace the harness HJ13 (Ref. AMM TASK 73-21-50-000-046) and (Ref. AMM TASK 73-21-50-400-046).
2 If the resistance values are out of the specified limits:
_
- disconnect the harness CJ13 from the T5 sensor and do a resistance check of the T5 sensor between: . pins A and B (0.88 to 1.22 ohms) . pin A and the ground ( > 10 megohms).
a If the resistance values are in the specified limits:
_
- replace the harness CJ13 (Ref. AMM TASK 73-21-50-000-029) and (Ref. AMM TASK 73-21-50-400-029).
b If the resistance values are out of the specified limits:
_
- replace the T5 temperature sensor (Ref. AMM TASK 77-22-10-000-002) and (Ref. AMM TASK 77-22-10-400-002).
B. Do the test given in Para. 3.A.
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TASK 77-20-00-810-823
Loss of the T5 Sensor Signal to the ECU on Engine 2
1. Possible Causes
_______________
- ECU (4000KS)
- harness HJ13
- harness CJ13
- T5 temperature sensor
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 73-21-50-000-029 Removal of the CJ13 Harness AMM 73-21-50-000-046 Removal of the HJ13 Harness AMM 73-21-50-400-029 Installation of the CJ13 Harness AMM 73-21-50-400-046 Installation of the HJ13 Harness AMM 73-21-60-000-001 Removal of the Electronic Control Unit (ECU)(4000KS) AMM 73-21-60-400-001 Installation of the Electronic Control Unit
(ECU)(4000KS) AMM 73-29-00-710-040 Operational Test of the FADEC on the Ground (with
Engine non Motoring)
AMM 77-22-10-000-002 Removal of the T5 Sensor
AMM 77-22-10-400-002 Installation of the T5 Sensor
ASM 73-25/18
AWM 71-51-09
3. Fault Confirmation
__________________
A. Test
(1) Do the operational test of the FADEC 2B on the ground (with engine non motoring) (Ref. AMM TASK 73-29-00-710-040).
4. Fault Isolation
_______________
A. If the test gives the maintenance message T5 SNSR, J13, ECU or T5 SNSR, J13, ECU*:
- do a check for open or short to ground of the harness HJ13 between the ECU (4000KS) and the 6 o'clock junction box, between the 6 o'clock junction box and the T5 sensor (Ref. ASM 73-25/18).
(1) If the wiring is not correct:
- repair the above wiring.
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本文链接地址：A320 Trouble Shooting Manual 排故手册 发动机指示(175)
