- visually examine the harness connector and ECU receptacle for damaged pins or contamination/oxidation.
- if damage is found, repair or replace as required.
- do a cleaning of the harness connectors and receptacles using a bristle brush with stoddard solvent (Material No. CP2011) (Ref. AMM TASK 73-21-50-210-002).
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F 『 E C F M E E E E 56 E E E 1 If the fault continues:
_
- replace the ECU (4000KS) (Ref. AMM TASK 73-21-60-000-001) and (Ref. AMM TASK 73-21-60-400-001).
2 If the fault continues:
_
- replace the harness HJ13 (Ref. AMM TASK 73-21-50-000-046) and (Ref. AMM TASK 73-21-50-400-046).
3 If the fault continues:
_
- disconnect the CJ13 connector (TCC-B) from the TCC sensor (3 O'Clock).
- do a cleaning of the harness connector using a bristle brush with stoddard solvent (Material No. CP2011) (Ref. AMM TASK 73-21-50-210-002).
- replace the TCC sensor (Ref. AMM TASK 73-21-70-000-002) and (Ref. AMM TASK 73-21-70-400-002).
NOTE : Tighten the connector by hand plus one eighth of a
____ turn. If necessary use soft nose pliers.
4 If the fault continues:
_
- replace the harness CJ13 (Ref. AMM TASK 73-21-50-000-029) and (Ref. AMM TASK 73-21-50-400-029).
(3) If the failure message TCC SNSR, J13, ECU is confirmed only on channel B:
(a) Disconnect the connector (TCC-B) on the harness CJ13 from the TCC sensor (3 O'Clock) and do a check of the resistance as follows:
- place the positive (+) lead of an ohmmeter on the TCC sensor pin A and the negative (-) lead of the ohmmeter on the TCC sensor pin B. Record as r1.
- place the positive (+) lead of an ohmmeter on the TCC sensor pin B and the negative (-) lead of the ohmmeter on the TCC sensor pin A. Record as r2.
- find the average (r1+r2/2) (2.4 to 4.2 ohms).
1 If the resistance values are out of the specified limits:
_
- replace the TCC sensor (Ref. AMM TASK 73-21-70-000-002) and (Ref. AMM TASK 73-21-70-400-002).
NOTE : Tighten the connector by hand plus one eighth of a
____ turn. If necessary use soft nose pliers.
2 If the resistance values are in the specified limits:
_
- disconnect the harness CJ13 from the 6 o'clock junction box and do a check of the CJ13 resistance cable between: . pins 5 and 6 (2.4 to 4.2 Ohms) . pins 5 and 4 (> 10 Megohms) . pin 5 and ground (> 10 Megohms).
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ECES F 『 E C F M E E E E 56 E E E a If the resistance values are out of 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 in the specified limits:
_
- disconnect the harness HJ13 from the ECU receptacle and do a check of the resistance between: . pins 7 and 8 (2.4 to 4.2 Ohms) . pins 7 and 17 (> 10 Megohms) . pin 7 and ground (> 10 Megohms).
* If the resistance values are out of the specified limits:
- replace the harness HJ13 (Ref. AMM TASK 73-21-50-000-046) and (Ref. AMM TASK 73-21-50-400-046).
* 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).
C. Do the test given in Para. 3.A.
(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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Loss of the Signal of the Channel B TCC-Sensor on Engine 2
1. Possible Causes
_______________
- TCC sensor
- harness CJ13
- harness HJ13
- ECU (4000KS)
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific bristle brush No specific soft nose pliers
B. Consumable Materials
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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(130)
