- disconnect the CJ11R harness (LPT-A) connector (located in the right core compartment) from the LPTC valve and visually examine the receptacles and the connectors for damaged pins or 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 the electrical resistance test through the LPTC valve between: . pins 2 and 3 (80 to 109.5 ohms) . pins 4 and 5 (85 to 115 ohms) . pins 6 and 7 (85 to 115 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 values are out of the specified limits:
- replace the LPTC valve (Ref. AMM TASK 75-22-10-000-002) and (Ref. AMM TASK 75-22-10-400-002).
(d) If the resistance values are in the specified limits:
- connect the CJ11R harness (LPT-A) connector to the LPTC valve receptacle (located in the right core compartment),
- disconnect the HJ11 harness from the ECU (4000KS) and visually examine the receptacles and the connectors for damaged pins or contamination (Ref. AMM TASK 73-21-50-210-002).
1_ If damage is found:
- repair or replace as required.
2_ If no damage is found:
- do an electrical resistance test through the HJ11 harness
between:
. pins 4 and 5 (80 to 109.5 ohms)
. pins 6 and 7 (85 to 115 ohms)
. pins 2 and 3 (85 to 115 ohms)
. pins 4 and 1 (> 10 megohms)
. pins 6 and 1 (> 10 megohms)
. pins 2 and 1 (> 10 megohms)
. pin 4 and the ground (> 10 megohms)
. pin 6 and the ground (> 10 megohms)
. pin 2 and the ground (> 10 megohms).
3_ 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).
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E E401-499, Aug 01/05 E E ECES
E (4) If the failure message LPTC VLV, J12, ECU is confirmed on channel B:
F 『
E C F M E
E E
E 56 E
E E
4_ If the resistance values are out of the specified limits:
- disconnect the HJ11 harness from the CJ11R harness located
at the 6 o'clock junction box and do an electrical
resistance test through the CJ11R harness between:
. pins 20 and 21 (80 to 109.5 ohms)
. pins 7 and 19 (85 to 115 ohms)
. pins 2 and 9 (85 to 115 ohms)
. pins 20 and 8 (> 10 megohms)
. pins 7 and 8 (> 10 megohms)
. pins 2 and 8 (> 10 megohms)
. pin 20 and the ground (> 10 megohms)
. pin 7 and the ground (> 10 megohms)
. pin 2 and the ground (> 10 megohms).
5_ If the resistance values are in the specified limits:
- replace the harness HJ11 (ECU to the 6 o'clock junction box)
(Ref. AMM TASK 73-21-50-000-044) and (Ref. AMM TASK 73-21-
50-400-044).
6_ If the resistance values are out of the specified limits:
- replace the harness CJ11R (Ref. AMM TASK 73-21-50-000-026)
and (Ref. AMM TASK 73-21-50-400-026).
- disconnect the CJ12R harness (LPT-A) connector (located in the right core compartment) from the LPTC valve and visually examine the receptacles and the connectors for damaged pins or 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 the electrical resistance test through the LPTC valve between: . pins 2 and 3 (80 to 109.5 ohms) . pins 4 and 5 (85 to 115 ohms) . pins 6 and 7 (85 to 115 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 values are out of the specified limits:
- replace the LPTC valve (Ref. AMM TASK 75-22-10-000-002) and (Ref. AMM TASK 75-22-10-400-002).
(d) If the resistance values are in the specified limits:
- connect the CJ12R harness (LPT-A) connector to the LPTC valve receptacle (located in the right core compartment),
- disconnect the HJ12 harness from the ECU (4000KS) and visually examine the receptacles and the connectors for damaged pins or contamination (Ref. AMM TASK 73-21-50-210-002).
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本文链接地址：A320 Trouble Shooting Manual 排故手册 大气 AIR(29)
