2007 INFINITI QX56 Factory Service Manual

Page 1473 of 3061

INFINITI QX56 2007  Factory Service Manual EC-390
< SERVICE INFORMATION >
DTC P0448 EVAP CANISTER VENT CONTROL VALVE
The weight should be less than 2.5 kg (5.5 lb).
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5.DETECT MALFUNCTIONING PART
Check the

Page 1474 of 3061

INFINITI QX56 2007  Factory Service Manual DTC P0448 EVAP CANISTER VENT CONTROL VALVE
EC-391
< SERVICE INFORMATION >
C
D
E
F
G
H
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K
L
MA
EC
N
P O
5. Perform “VENT CONTROL/V” in “ACTIVE TEST” mode.
6. Check air passage continuity and

Page 1475 of 3061

INFINITI QX56 2007  Factory Service Manual EC-392
< SERVICE INFORMATION >
DTC P0451 EVAP CONTROL SYSTEM PRESSURE SENSOR
DTC P0451 EVAP CONTROL SYSTEM PRESSURE SENSOR
Component DescriptionINFOID:0000000003531889
The EVAP control system pressure

Page 1476 of 3061

INFINITI QX56 2007  Factory Service Manual DTC P0451 EVAP CONTROL SYSTEM PRESSURE SENSOR
EC-393
< SERVICE INFORMATION >
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
2. Turn ignition switch ON and select “DATA MONITOR” mode with
CONSULT-II.
3. Start eng

Page 1477 of 3061

INFINITI QX56 2007  Factory Service Manual EC-394
< SERVICE INFORMATION >
DTC P0451 EVAP CONTROL SYSTEM PRESSURE SENSOR
NG >> Replace EVAP control system pressure sensor.
4.CHECK INTERMITTENT INCIDENT
Refer to EC-138
.
For wiring diagram, refe

Page 1478 of 3061

INFINITI QX56 2007  Factory Service Manual DTC P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR
EC-395
< SERVICE INFORMATION >
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
DTC P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR
Component DescriptionINFOID:0000000003531895

Page 1479 of 3061

INFINITI QX56 2007  Factory Service Manual EC-396
< SERVICE INFORMATION >
DTC P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR
4. Select “DATA MONITOR” mode with CONSULT-II.
5. Make sure that “FUEL T/TMP SE” is more than 0°C (32°F).
6. Star

Page 1480 of 3061

INFINITI QX56 2007  Factory Service Manual DTC P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR
EC-397
< SERVICE INFORMATION >
C
D
E
F
G
H
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J
K
L
MA
EC
N
P O
Wiring DiagramINFOID:0000000003531899
Specification data are reference values and are measu