ignition INFINITI QX56 2011 Factory Service Manual

INFINITI QX56 2011 Factory Service Manual QX56 2011 INFINITI INFINITI https://www.carmanualsonline.info/img/42/57033/w960_57033-0.png INFINITI QX56 2011 Factory Service Manual

Page 2282 of 5598

INFINITI QX56 2011  Factory Service Manual 
EC-258
< DTC/CIRCUIT DIAGNOSIS >[VK56VD]
P0139, P0159 HO2S2
Which is displayed on CONSULT-III screen?
OK >> INSPECTION END
NG >> Go to 
EC-259, "
Diagnosis Procedure".
CAN NOT BE DIAGNOSED>>GO TO 3.

Page 2283 of 5598

INFINITI QX56 2011  Factory Service Manual 
P0139, P0159 HO2S2EC-259
< DTC/CIRCUIT DIAGNOSIS > [VK56VD]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
3.PERFORM COMPONENT FUNCTION CHECK-III
Check the voltage between ECM harness connector terminals under the

Page 2285 of 5598

INFINITI QX56 2011  Factory Service Manual 
P0139, P0159 HO2S2EC-261
< DTC/CIRCUIT DIAGNOSIS > [VK56VD]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
NO >> GO TO 6.
3.CHECK HEATED OXYGEN SENSOR 2-I
 WITHOUT CONSULT-III
1. Start engine and warm it up to the

Page 2287 of 5598

INFINITI QX56 2011  Factory Service Manual 
P0171, P0174 FUEL INJECTION SYSTEM FUNCTION
EC-263
< DTC/CIRCUIT DIAGNOSIS > [VK56VD]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
P0171, P0174 FUEL INJE
CTION SYSTEM FUNCTION
DTC LogicINFOID:0000000006217825
DTC

Page 2288 of 5598

INFINITI QX56 2011  Factory Service Manual 
EC-264
< DTC/CIRCUIT DIAGNOSIS >[VK56VD]
P0171, P0174 FUEL INJECTION SYSTEM FUNCTION
NO >> GO TO 5.
5.PERFORM DTC CONFIRMATION PROCEDURE-III
1. Turn ignition switch OFF and wait at least 10 seconds.

Page 2291 of 5598

INFINITI QX56 2011  Factory Service Manual 
P0172, P0175 FUEL INJECTION SYSTEM FUNCTION
EC-267
< DTC/CIRCUIT DIAGNOSIS > [VK56VD]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
P0172, P0175 FUEL INJE
CTION SYSTEM FUNCTION
DTC LogicINFOID:0000000006217827
DTC

Page 2292 of 5598

INFINITI QX56 2011  Factory Service Manual 
EC-268
< DTC/CIRCUIT DIAGNOSIS >[VK56VD]
P0172, P0175 FUEL INJECTION SYSTEM FUNCTION
5.PERFORM DTC CONFIRMATION PROCEDURE-III
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignitio

Page 2295 of 5598

INFINITI QX56 2011  Factory Service Manual 
P0181 FTT SENSOREC-271
< DTC/CIRCUIT DIAGNOSIS > [VK56VD]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
P0181 FTT SENSOR
DTC LogicINFOID:0000000006288289
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITI

Page 2296 of 5598

INFINITI QX56 2011  Factory Service Manual 
EC-272
< DTC/CIRCUIT DIAGNOSIS >[VK56VD]
P0181 FTT SENSOR
NO >> Proceed to 
MWI-69, "Component Function Check".
2.CHECK FUEL TANK TEMPERATURE SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.

Page 2297 of 5598

INFINITI QX56 2011  Factory Service Manual 
P0181 FTT SENSOREC-273
< DTC/CIRCUIT DIAGNOSIS > [VK56VD]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
Component Inspection (Fuel 
Tank Temperature Sensor)INFOID:0000000006288291
1.CHECK FUEL TANK TEMPERATURE SEN