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2 If no damage is found:
_
R - clean the connector and receptacle with a bristle brush and
R stoddard solvent (Material No. CP2011) (Ref. AMM TASK 73-21-50-210-002).
- do the electrical resistance test through the T12 temperature sensor between: . pins 1 and 2 (160 to 250 ohms) . pin 1 and the ground (>10 megohms).
3 If the resistance values are out of the specified limits:
_
- replace the T12 temperature sensor (Ref. AMM TASK 73-21-40-000-001) and (Ref. AMM TASK 73-21-40-400-001).
4 If the resistance values are in the specified limits:
_
- connect the harness HJ10 to the T12 temperature sensor (C102 connector),
- disconnect the harness HJ10 from the ECU (4000KS) (Ref. ASM 73-25/18),
- visually examine the receptacle and the connector for damaged pins and contamination (Ref. AMM TASK 73-21-50-210-002).
a If damage is found:
_
- repair or replace as required.
b If no damage is found:
_
R - clean the connector and receptacle with a bristle brush
R and stoddard solvent (Material No. CP2011) (Ref. AMM TASK 73-21-50-210-002).
- do the electrical resistance test through the harness HJ10 between: . pins 18 and 19 (160 to 250 ohms) . pins 18 and 7 (>10 megohms) . pin 18 and the ground (>10 megohms).
c 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).
d If the resistance values are out of the specified limits:
_
- replace the harness HJ10 (Ref. AMM TASK 73-21-50-000-043) and (Ref. AMM TASK 73-21-50-400-043).
B. Do the test given in Para. 3.
(1) No additional maintenance action is required if the fault is not confirmed.
(2) Repeat the fault isolation procedure if the fault continues.
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TASK 73-20-00-810-865
Failure of the PS12 Signal on Engine 1
1. Possible Causes
_______________
- PS12 Sense Line
- ECU (4000KS)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 72-23-00-000-040 Removal of the PS12 Line AMM 72-23-00-280-002 Inspection/Check of the PS12 line AMM 72-23-00-400-040 Installation of the PS12 Line 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)
3. Fault Confirmation
__________________
A. Test
(1) Not applicable, the fault is evident.
4. Fault Isolation
_______________
A. Test
(1) Inspect the PS12 Sense Line for loose connections, broken tubes and brackets or blocked ports (Ref. AMM TASK 72-23-00-280-002).
(a) If damage is found:
- replace, retighten or repair PS12 Sense Line (Ref. AMM TASK 72-23-00-000-040), (Ref. AMM TASK 72-23-00-400-040).
(b) If nothing is found:
- continue the troubleshooting as follows.
(2) Do an operational test of the ECU (4000KS)
(a) If the test gives the maintenance message ECU (PS12 SENSOR):
- replace the ECU (Ref. AMM TASK 73-21-60-000-001) (Ref. AMM TASK 73-21-60-400-001).
(b) If the test does not give the maintenance message:
- no action is required.
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TASK 73-20-00-810-866
Failure of the PS12 Signal on Engine 2
1. Possible Causes
_______________
- PS12 Sense Line
- ECU (4000KS)
2. Job Set-up Information
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本文链接地址：A320 Trouble Shooting Manual 排故手册 发动机燃油和控制 1(97)
