2008 INFINITI QX56 Factory Service Manual

Page 1529 of 4083

INFINITI QX56 2008  Factory Service Manual EC-230
< COMPONENT DIAGNOSIS >[VK56DE]
P0442 EVAP CONTROL SYSTEM
NG >> Replace fuel level sensor unit.
24.CHECK INTERMITTENT INCIDENT
Refer to  GI-35, "
How to Check Terminal" and GI-38, "Intermittent

Page 1530 of 4083

INFINITI QX56 2008  Factory Service Manual P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-231
< COMPONENT DIAGNOSIS > [VK56DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
P0443 EVAP CANISTER PURGE VOLU
ME CONTROL SOLENOID VALVE
DescriptionINFO

Page 1531 of 4083

INFINITI QX56 2008  Factory Service Manual EC-232
< COMPONENT DIAGNOSIS >[VK56DE]
P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at

Page 1532 of 4083

INFINITI QX56 2008  Factory Service Manual P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-233
< COMPONENT DIAGNOSIS > [VK56DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
• Harness for open or short between EVAP canister purge volume control

Page 1533 of 4083

INFINITI QX56 2008  Factory Service Manual EC-234
< COMPONENT DIAGNOSIS >[VK56DE]
P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
NG >> Clean the rubber tube using an air blower.
9.CHECK EVAP CANISTER VENT CONTROL VALVE
Refer to  EC-24

Page 1534 of 4083

INFINITI QX56 2008  Factory Service Manual P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-235
< COMPONENT DIAGNOSIS > [VK56DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
 Without CONSULT-III
Check air passage continuity of EV
AP canister purg

Page 1535 of 4083

INFINITI QX56 2008  Factory Service Manual EC-236
< COMPONENT DIAGNOSIS >[VK56DE]
P0444, P0445 EVAP CANISTER P
URGE VOLUME CONTROL SOLENOID 
VALVE
P0444, P0445 EVAP CANISTER PURG E VOLUME CONTROL SOLENOID
VA LV E
DescriptionINFOID:000000000135

Page 1536 of 4083

INFINITI QX56 2008  Factory Service Manual P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID 
VALVE
EC-237
< COMPONENT DIAGNOSIS > [VK56DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
DTC Confirmation ProcedureINFOID:0000000001351591
NOTE:
If DTC C