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(2) If the failure message VBV SNSR, J11, ECU is not confirmed but is repetitive:
- disconnect the CJ11L harness from the VBV sensor (VBV-A connector) located in the left core compartment and visually examine the receptacle and the harness for damaged pins and contamination (Ref. AMM TASK 73-21-50-210-001).
(a) If damage is found:
- repair or replace as required.
(b) If no damage is found:
- replace the VBV sensor (RVDT) (Ref. AMM TASK 75-31-70-000-002) and (Ref. AMM TASK 75-31-70-400-002).
NOTE : After new VBV sensor is installed, a rigging of the VBV
____ R system is required (Ref. AMM TASK 75-31-00-200-002).
(c) If the fault continues during the subsequent flights:
- disconnect the HJ11 harness from the ECU (4000KS) and visually examine the receptacle and the connector for damaged pins and contamination (Ref. AMM TASK 73-21-50-210-001).
1 If damage is found:
_ - repair or replace as required.
2 If no damage is found:
_
- replace the ECU (4000KS) (Ref. AMM TASK 73-21-60-000-001) and (Ref. AMM TASK 73-21-60-400-001).
(d) If the fault continues during the subsequent flights:
- replace the harness HJ11 (ECU to the 6 o'clock jonction box) (Ref. AMM TASK 73-21-50-000-044) and (Ref. AMM TASK 73-21-50-400-044).
(e) If the fault continues during the subsequent flights:
- replace the harness CJ11L (located in the left core compartment) (Ref. AMM TASK 73-21-50-000-025) and (Ref. AMM TASK 73-21-50-400-025).
(3) If the failure message VBV SNSR, J11, ECU is confirmed:
- disconnect the CJ11L harness from the VBV sensor (VBV-A connector) located in the left core compartment and visually examine the CJ11L harness connector and the VBV sensor (RVDT) receptacle 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:
- do an electrical resistance test through the VBV sensor between: . pins 2 and 3 (80 to 110 ohms)
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. pins 4 and 5 (80 to 120 ohms)
. pins 6 and 7 (85 to 120 ohms)
. pin 2 and the ground (> 10 megohms)
. pin 4 and the ground (> 10 megohms)
. pin 6 and the ground (> 10 megohms).
(c) If the resistance test values are out of the specified limits:
- replace the VBV sensor (Ref. AMM TASK 75-31-70-000-002) and (Ref. AMM TASK 75-31-70-400-002).
(d) If the resistance test values are in the specified limits:
- reconnect the harness CJ11L (VBV-A connector) to the VBV sensor (RVDT),
- disconnect the harness HJ11 from the ECU (4000KS) receptacle
and visually examine the HJ11 harness connector and the VBV R sensor (RVDT) receptacle for damaged pins and contamination R (Ref. AMM TASK 73-21-50-210-002).
R (e) If damage is found:
- repair or replace as required.
R (f) If no damage is found:
- do an electrical resistance test through the J11 harness between: . pins 13 and 29 (80 to 110 ohms) . pins 30 and 31 (80 to 120 ohms) . pins 15 and 32 (85 to 120 ohms) . pins 13 and 14 (> 10 megohms) . pins 30 and 14 (> 10 megohms) . pins 15 and 14 (> 10 megohms) . pin 13 and the ground (> 10 megohms) . pin 30 and the ground (> 10 megohms) . pin 15 and the ground (> 10 megohms).
(g) If the resistance test values are in the specified limits:
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本文鏈接地址：A320 Trouble Shooting Manual 排故手冊 大氣 AIR(58)
