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 . 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).
 4_ If the resistance values are out of the specified limits:
 - disconnect the J11 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 J11 (ECU to the 6 o'clock junction box)
 (Ref. AMM TASK 73-21-50-000-010) and (Ref. AMM TASK 73-21-
50-400-010).
 6_ If the resistance values are out of the specified limits:
 - replace the harness CJ11R (Ref. AMM TASK 73-21-50-000-002)
 and (Ref. AMM TASK 73-21-50-400-002).

 - 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 73-21-50-210-001).
 (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)
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 . 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 75-22-10-000-001) and (Ref. AMM TASK 75-22-10-400-001).

 (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 harness J12 from the ECU (4000KS) and visually examine the receptacles and the connectors for damaged pins or 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:
_
 - do an electrical resistance test through the J12 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).
 4 If the resistance values are out of the specified limits:
_
 - disconnect the J12 harness from the CJ12R harness located at the 6 o'clock junction box and do an electrical resistance test through the CJ12R 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 J12 (ECU to the 6 o'clock junction box) (Ref. AMM TASK 73-21-50-000-011) and (Ref. AMM TASK 73-21-50-400-011).
　
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本文鏈接地址：A320 Trouble Shooting Manual 排故手冊(cè) 大氣 AIR(32)