sensor INFINITI QX56 2009 Factory Service Manual

INFINITI QX56 2009 Factory Service Manual QX56 2009 INFINITI INFINITI https://www.carmanualsonline.info/img/42/57031/w960_57031-0.png INFINITI QX56 2009 Factory Service Manual

Page 1563 of 4171

INFINITI QX56 2009  Factory Service Manual 
EC-236
< COMPONENT DIAGNOSIS >[VK56DE]
P0448 EVAP CANISTER VENT CONTROL VALVE
Weigh the EVAP canister with the EV
AP canister vent control valve and EVAP control system pressure sensor
attached.
The

Page 1565 of 4171

INFINITI QX56 2009  Factory Service Manual 
EC-238
< COMPONENT DIAGNOSIS >[VK56DE]
P0451 EVAP CONTROL S
YSTEM PRESSURE SENSOR
P0451 EVAP CONTROL SYSTEM PRESSURE SENSOR
Component DescriptionINFOID:0000000003771505
The EVAP control system pressu

Page 1566 of 4171

INFINITI QX56 2009  Factory Service Manual 
P0451 EVAP CONTROL SYSTEM PRESSURE SENSOREC-239
< COMPONENT DIAGNOSIS > [VK56DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
Refer to 
EC-85, "Ground Inspection".
OK or NG
OK >> GO TO 2.
NG >> Repair or replace

Page 1567 of 4171

INFINITI QX56 2009  Factory Service Manual 
EC-240
< COMPONENT DIAGNOSIS >[VK56DE]
P0451 EVAP CONTROL S
YSTEM PRESSURE SENSOR
3. Turn ignition switch ON and check output voltage between ECM
terminal 32 and ground under the following conditions

Page 1568 of 4171

INFINITI QX56 2009  Factory Service Manual 
P0452 EVAP CONTROL SYSTEM PRESSURE SENSOREC-241
< COMPONENT DIAGNOSIS > [VK56DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
P0452 EVAP CONTROL SYSTEM
 PRESSURE SENSOR
Component DescriptionINFOID:000000000377151

Page 1569 of 4171

INFINITI QX56 2009  Factory Service Manual 
EC-242
< COMPONENT DIAGNOSIS >[VK56DE]
P0452 EVAP CONTROL S
YSTEM PRESSURE SENSOR
6. Start engine and wait at least 20 seconds.
7. Check 1st trip DTC.
8. If 1st trip DTC is detected, go to  EC-242, "

Page 1570 of 4171

INFINITI QX56 2009  Factory Service Manual 
P0452 EVAP CONTROL SYSTEM PRESSURE SENSOREC-243
< COMPONENT DIAGNOSIS > [VK56DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
3.CHECK EVAP CONTROL SYS
TEM PRESSURE SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition swi

Page 1571 of 4171

INFINITI QX56 2009  Factory Service Manual 
EC-244
< COMPONENT DIAGNOSIS >[VK56DE]
P0452 EVAP CONTROL S
YSTEM PRESSURE SENSOR
Check the following.
 Harness connectors C1, E41
 Harness connectors E5, F14
 Harness for open or short between EV

Page 1572 of 4171

INFINITI QX56 2009  Factory Service Manual 
P0453 EVAP CONTROL SYSTEM PRESSURE SENSOREC-245
< COMPONENT DIAGNOSIS > [VK56DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
P0453 EVAP CONTROL SYSTEM
 PRESSURE SENSOR
Component DescriptionINFOID:000000000377151

Page 1573 of 4171

INFINITI QX56 2009  Factory Service Manual 
EC-246
< COMPONENT DIAGNOSIS >[VK56DE]
P0453 EVAP CONTROL S
YSTEM PRESSURE SENSOR
3. Turn ignition switch ON.
4. Select “DATA MONITOR” mode with CONSULT-III.
5. Make sure that “FUEL T/TMP SE”