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1. Possible Causes
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- ECU (4000KS)
2. Job Set-up Information
______________________
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
__________________
A. Test
(1) Do the operational test of the FADEC 2A 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 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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TASK 73-20-00-810-897
Loss of the T25 Sensor Signal on Engine 1
1. Possible Causes
_______________
- ECU (4000KS)
- harness J11
- harness CJ11R
- T25 temperature sensor
2. Job Set-up Information
______________________
R A. Fixtures, Tools, Test and Support Equipment
R -------------------------------------------------------------------------------R REFERENCE QTY DESIGNATION
R -------------------------------------------------------------------------------
R No specific bristle brush
R B. Consumable Materials
R -------------------------------------------------------------------------------R REFERENCE DESIGNATION
R -------------------------------------------------------------------------------
R Material No. CP2011 *
R stoddard solvent (Ref. 70-30-00)
R C. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
R AMM AMM AMM AMM AMM AMM AMM AMM AMM 73-21-20-000-002 73-21-20-400-002 73-21-50-000-026 73-21-50-000-044 73-21-50-210-002 73-21-50-400-026 73-21-50-400-044 73-21-60-000-001 73-21-60-400-001
AMM 73-29-00-710-040
ASM 73-25/18
F EEFF : ALL E E ECES Removal of the T25 Temperature SensorInstallation of the T25 Temperature SensorRemoval of the CJ11R HarnessRemoval of the HJ11 Harness Visual Inspection of the Wiring HarnessesInstallation of the CJ11R HarnessInstallation of the HJ11 HarnessRemoval of the Electronic Control Unit (ECU)(4000KS)Installation of the Electronic Control Unit (ECU)(4000KS)Operational Test of the FADEC on the Ground (with Engine non Motoring)
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3. Fault Confirmation
__________________
A. Test
(1) Do the operational test of the FADEC 1A on the ground (with engine non motoring) (Ref. AMM TASK 73-29-00-710-040).
4. Fault Isolation
_______________
A. If the test of the channel A gives the maintenance message T25 SNSR, J12, ECU*:
- do a check for open or short to ground of the harness J11 between the ECU (4000KS) and the 6 o' clock junction box, between the 6 o'clock junction box and the T25 temperature sensor pins J11/19, 37, 38 to pins J11/1, 2, 3 (Ref. ASM 73-25/18).
(1) If the wiring is not correct:
- repair the above wiring.
(2) If the wiring is correct: R - disconnect the harness J11 from the ECU (4000KS). 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 73-21-50-210-R 002). R - do a check of the ECU cable resistance between: R
. pins 37 and 38 (160 to 250 Ohms) . pins 37 and 19 (> 10 Megohms) . pin 37 and the ground (> 10 Megohms).
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本文鏈接地址：A320 Trouble Shooting Manual 排故手冊 發(fā)動機燃油和控制 1(100)
