A320 Trouble Shooting Manual 排故手册发动机燃油和控制 1(142)_航空信息_民用航空_通用航空

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. pins 37 and 38 (160 to 250 Ohms) . pins 37 and 19 (> 10 Megohms) . pin 37 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: R - disconnect the harness CJ12 at the 6 o'clock junction box. R - do a visual inspection of the harness connector and receptacle. R Look for contamination or oxidation or pins that have damage. R - if you find damage, repair or replace as required. R - clean the connector and receptacle with a bristle brush and R stoddard solvent (Material No. CP2011) (Ref. AMM TASK 73-21-50-R 210-002). R - do a check of the resistance of the cable CJ12R between: R
. pins 15 and 16 (160 to 250 Ohms) . pins 15 and 5 (> 10 Megohms) . pin 15 and the ground (> 10 Megohms).
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1 If the resistance values are in the specified limits:

- replace the harness J12 (Ref. AMM TASK 73-21-50-000-045) and (Ref. AMM TASK 73-21-50-400-045).
2 If the resistance values are out of the specified limits:
_ R - disconnect the harness CJ12R at the T25 temperature sensor. R - do a visual inspection of the harness connector and R receptacle. Look for contamination or oxidation or pins that R have damage. R - if you find damage, repair or replace as required. R - clean the connector and receptacle with a bristle brush and R stoddard solvent (Material No. CP2011) (Ref. AMM TASK 73-21-R 50-210-002). R - do a check of the T25 sensor resistance between: R
. pins 1 and 2 (160 to 250 Ohms) . pin 1 and the ground (> 10 Megohms).
a If the resistance values are in the specified limits:
_

- replace the harness CJ12R (Ref. AMM TASK 73-21-50-000-028) and (Ref. AMM TASK 73-21-50-400-028).
b If the resistance values are out of the specified limits:
_

- replace the T25 temperature sensor (Ref. AMM TASK 73-21-20-000-002) and (Ref. AMM TASK 73-21-20-400-002).
B. Do the test given in Para. 3.A.
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E TASK 73-20-00-810-965 PS3 Sensors Disagree Between Both Channels on Engine 1

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1. Possible Causes
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- ECU (4000KS)
2. Job Set-up Information
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A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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)
3. Fault Confirmation
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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
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A. If the test gives the maintenance message ECU (PS3 DISAGREE) or ECU (PS3 DISAGREE)*
- replace the ECU (4000KS) (Ref. AMM TASK 73-21-60-000-001) (Ref. AMM TASK 73-21-60-400-001).
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ECES TASK 73-20-00-810-966 PS3 Sensors Disagree Between Both Channels on Engine 2