2005 INFINITI QX4 Factory Service Manual

Page 1497 of 3419

INFINITI QX4 2005  Factory Service Manual EC-306Revision: October 2005
DTC P0441 EVAP CONTROL SYSTEM
2005 QX56
9. If NG, go to EC-306, "Diagnostic Procedure" .
Diagnostic ProcedureUBS00H4N
1. CHECK EVAP CANISTER
1. Turn ignition switch OFF.
2

Page 1498 of 3419

INFINITI QX4 2005  Factory Service Manual DTC P0441 EVAP CONTROL SYSTEM
EC-307
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Revision: October 20052005 QX56
4. CHECK EVAP PURGE LINE
1. Turn ignition switch OFF.
2. Check EVAP purge line for improper connection or

Page 1499 of 3419

INFINITI QX4 2005  Factory Service Manual EC-308Revision: October 2005
DTC P0441 EVAP CONTROL SYSTEM
2005 QX56
8. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR
1. Disconnect EVAP control system pressure sensor harness connector.
2. Chec

Page 1500 of 3419

INFINITI QX4 2005  Factory Service Manual DTC P0442 EVAP CONTROL SYSTEM
EC-309
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Revision: October 20052005 QX56
DTC P0442 EVAP CONTROL SYSTEMPFP:14950
On Board Diagnosis LogicUBS00H4O
This diagnosis detects leaks in t

Page 1501 of 3419

INFINITI QX4 2005  Factory Service Manual EC-310Revision: October 2005
DTC P0442 EVAP CONTROL SYSTEM
2005 QX56
CAUTION:
Use only a genuine NISSAN fuel filler cap as a replacement. If an incorrect fuel filler cap is used,
the MIL may come on.

Page 1502 of 3419

INFINITI QX4 2005  Factory Service Manual DTC P0442 EVAP CONTROL SYSTEM
EC-311
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3. Stop vehicle.
4. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
5. Select Servic

Page 1503 of 3419

INFINITI QX4 2005  Factory Service Manual EC-312Revision: October 2005
DTC P0442 EVAP CONTROL SYSTEM
2005 QX56
5. INSTALL THE PRESSURE PUMP
To locate the EVAP leak, install EVAP service port adapter and pres-
sure pump to EVAP service port se

Page 1504 of 3419

INFINITI QX4 2005  Factory Service Manual DTC P0442 EVAP CONTROL SYSTEM
EC-313
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6. CHECK FOR EVAP LEAK
 With CONSULT-II
1. Turn ignition switch ON.
2. Select “EVAP SYSTEM CLOSE” of