2001 NISSAN X-TRAIL Service Repair Manual

Page 3353 of 3833

NISSAN X-TRAIL 2001  Service Repair Manual TROUBLE DIAGNOSIS
ATC-77
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AT C
9.CHECK CIRCUIT CONTINUITY BETWEEN AUTO AMP. AND FAN CONTROL AMP.
OK or NG
OK >> Replace auto amp.
NG >> Repair harness or connector.
COMPONENT INS

Page 3354 of 3833

NISSAN X-TRAIL 2001  Service Repair Manual ATC-78
TROUBLE DIAGNOSIS
Magnet Clutch Circuit
EJS001H5
SYMPTOM: Magnet clutch does not engage.
INSPECTION FLOW
*1AT C - 4 7 ,   "PROCEDURE", see No. 1. *2ATC-100, "Ambient Sensor Circuit&

Page 3355 of 3833

NISSAN X-TRAIL 2001  Service Repair Manual TROUBLE DIAGNOSIS
ATC-79
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AT C
SYSTEM DESCRIPTION
Auto amplifier controls compressor operation by ambient temperature and signal from ECM.
Low Temperature Protection Control (Wit

Page 3356 of 3833

NISSAN X-TRAIL 2001  Service Repair Manual ATC-80
TROUBLE DIAGNOSIS
1. CHECK POWER SUPPLY FOR COMPRESSOR
Disconnect compressor harness connector.
OK or NG
OK >> Check magnet clutch coil.
1. If  NG,  replace  magnet  clutch.  Refer  to ATC-135,

Page 3357 of 3833

NISSAN X-TRAIL 2001  Service Repair Manual TROUBLE DIAGNOSIS
ATC-81
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AT C
4.CHECK A/C RELAY AFTER DISCONNECTING IT
Refer to ATC-84, "
A/C Relay" .
OK or NG
OK >> Reconnect A/C relay. And GO TO 5.
NG >> 1. replace

Page 3358 of 3833

NISSAN X-TRAIL 2001  Service Repair Manual ATC-82
TROUBLE DIAGNOSIS
9. CHECK VOLTAGE FOR AUTO AMP. (COMPRESSOR FEED BACK SIGNAL)
OK or NG
OK >> GO TO 10.
NG >> GO TO 13.
10. CHECK VOLTAGE FOR AUTO AMP. (FAN ON SIGNAL)
OK or NG
OK >> Replace au

Page 3359 of 3833

NISSAN X-TRAIL 2001  Service Repair Manual TROUBLE DIAGNOSIS
ATC-83
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AT C
12.CHECK CIRCUIT CONTINUITY BETWEEN ECM AND AUTO AMP. (QR ENGINE)
Disconnect ECM connector and auto amp. connector.
OK or NG
OK >> Check EC-412,  &

Page 3360 of 3833

NISSAN X-TRAIL 2001  Service Repair Manual ATC-84
TROUBLE DIAGNOSIS
15. CHECK DUAL- PRESSURE SWITCH (YD ENGINE)
Refer to  AT C - 8 5 ,   "
Dual-Pressure Switch (With Diesel Engine)" .
OK or NG
OK >> GO TO 16.
NG >> Replace the dual-pre