2011 INFINITI QX56 fuel pressure

[x] Cancel search: fuel pressure

Page 2273 of 5598

INFINITI QX56 2011  Factory Service Manual 
P0138, P0158 HO2S2EC-249
< DTC/CIRCUIT DIAGNOSIS > [VK56VD]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
P0138, P0158 HO2S2
DTC LogicINFOID:0000000006217817
DTC DETECTION LOGIC
The heated oxygen sensor 2 has a mu

Page 2281 of 5598

INFINITI QX56 2011  Factory Service Manual 
P0139, P0159 HO2S2EC-257
< DTC/CIRCUIT DIAGNOSIS > [VK56VD]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
P0139, P0159 HO2S2
DTC LogicINFOID:0000000006217821
DTC DETECTION LOGIC
The heated oxygen sensor 2 has a mu

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 2289 of 5598

INFINITI QX56 2011  Factory Service Manual 
P0171, P0174 FUEL INJECTION SYSTEM FUNCTION
EC-265
< DTC/CIRCUIT DIAGNOSIS > [VK56VD]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
5. Check the continuity between 
A/F sensor 1 harness connector and ground, or EC

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 2293 of 5598

INFINITI QX56 2011  Factory Service Manual 
P0172, P0175 FUEL INJECTION SYSTEM FUNCTION
EC-269
< DTC/CIRCUIT DIAGNOSIS > [VK56VD]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
5. Check the continuity between 
A/F sensor 1 harness connector and ground, or EC

Page 2300 of 5598

INFINITI QX56 2011  Factory Service Manual 
EC-276
< DTC/CIRCUIT DIAGNOSIS >[VK56VD]
P0190, P0192, 
P0193 FRP SENSOR
P0190, P0192, P0193 FRP SENSOR
DTC LogicINFOID:0000000006288295
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONI

Page 2301 of 5598

INFINITI QX56 2011  Factory Service Manual 
P0190, P0192, P0193 FRP SENSOR
EC-277
< DTC/CIRCUIT DIAGNOSIS > [VK56VD]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
Is inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.CHECK SENSOR POWER SUPPLY CIRCUI