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R
for cable CJ11R
. pins 25 and 26 (160 to 250 Ohms)
. pins 25 and 13 (> 10 Megohms)
. pin 25 and ground (> 10 Megohms)
for cable CJ12R
. pins 15 and 16 (160 to 250 Ohms)
. pins 15 and 13 (> 10 Megohms)
. pin 15 and ground (> 10 Megohms)
1_ If the resistance values are in the specified limits:
- replace the defective harness J11 (Ref. AMM TASK 73-21-50-
000-044) (Ref. AMM TASK 73-21-50-400-044) or
- replace the defective harness J12 (Ref. AMM TASK 73-21-50-
000-045) (Ref. AMM TASK 73-21-50-400-045).
2_ If the resistance values are out of the specified values:
R - disconnect the harnesses CJ11R and CJ12R at T25 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
for cable CJ11R
. pins 1 and 2 (160 to 250 Ohms)
. pin 1 and ground (> 10 Megohms)
for cable CJ12R
. pins 1 and 2 (160 to 250 Ohms)
. pin 1 and ground (> 10 Megohms)
a_ If the resistance values are in the specified limits:
- replace the defective harness CJ11R (Ref. AMM TASK 73-21-
50-000-026) (Ref. AMM TASK 73-21-50-400-026) or
- replace the defective harness CJ12R (Ref. AMM TASK 73-21-
50-000-028) (Ref. AMM TASK 73-21-50-400-028).
b_ If the resistance values are out of the specified limits:
- replace the engine 1 T25 temperature sensor (Ref. AMM
TASK 73-21-20-000-002) (Ref. AMM TASK 73-21-20-400-002).
B. Do the test given in Para. 3.A.
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TASK 73-20-00-810-858
Loss of T25 Sensor Signal through the Two Channels on Engine 2
1. Possible Causes
_______________
- ECU (4000KS)
- harness J11
- harness J12
- harness CJ11R
- harness CJ12R
- engine 2 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
-------------------------------------------------------------------------------
AMM 73-21-20-000-002
AMM 73-21-20-400-002
AMM 73-21-50-000-026
AMM 73-21-50-000-028
AMM 73-21-50-000-044
AMM 73-21-50-000-045
R AMM 73-21-50-210-002
AMM 73-21-50-400-026
AMM 73-21-50-400-028
AMM 73-21-50-400-044
AMM 73-21-50-400-045
AMM 73-21-60-000-001
AMM 73-21-60-400-001
F EEFF : ALL E E ECES Removal of the T25 Temperature SensorInstallation of the T25 Temperature SensorRemoval of the CJ11R HarnessRemoval of the CJ12R HarnessRemoval of the HJ11 HarnessRemoval of the HJ12 Harness Visual Inspection of the Wiring HarnessesInstallation of the CJ11R HarnessInstallation of the CJ12R HarnessInstallation of the HJ11 HarnessInstallation of the HJ12 HarnessRemoval of the Electronic Control Unit (ECU)(4000KS)Installation of the Electronic Control Unit (ECU)(4000KS)
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∞∞73-20-00∞∞∞∞∞∞∞∞∞∞Page 260 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320 Trouble Shooting Manual 排故手册 发动机燃油和控制 1(88)
