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
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Page 2391 of 5598

INFINITI QX56 2011  Factory Service Manual 
P0527 COOLING FAN SPEED SENSOREC-367
< DTC/CIRCUIT DIAGNOSIS > [VK56VD]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
P0527 COOLING FAN SPEED SENSOR
DTC LogicINFOID:0000000006217867
DTC DETECTION LOGIC
DTC CONFIRM

Page 2392 of 5598

INFINITI QX56 2011  Factory Service Manual 
EC-368
< DTC/CIRCUIT DIAGNOSIS >[VK56VD]
P0527 COOLING FAN SPEED SENSOR
2.CHECK COOLING FAN SPEED SENSOR POWER SUPPLY CIRCUIT-II
1. Check the voltage between electrically-controlled  cooling fan coup

Page 2393 of 5598

INFINITI QX56 2011  Factory Service Manual 
P0527 COOLING FAN SPEED SENSOREC-369
< DTC/CIRCUIT DIAGNOSIS > [VK56VD]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
Is inspection result normal?
YES >> Check intermittent incident. Refer to 
GI-40, "Intermittent

Page 2394 of 5598

INFINITI QX56 2011  Factory Service Manual 
EC-370
< DTC/CIRCUIT DIAGNOSIS >[VK56VD]
P0527 COOLING FAN SPEED SENSOR
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace Electrically-controlled cooling fan coupling.
+
−
Condit

Page 2395 of 5598

INFINITI QX56 2011  Factory Service Manual 
P0550 PSP SENSOREC-371
< DTC/CIRCUIT DIAGNOSIS > [VK56VD]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
P0550 PSP SENSOR
DTC LogicINFOID:0000000006217870
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITI

Page 2396 of 5598

INFINITI QX56 2011  Factory Service Manual 
EC-372
< DTC/CIRCUIT DIAGNOSIS >[VK56VD]
P0550 PSP SENSOR
Is inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.CHECK SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect EC

Page 2397 of 5598

INFINITI QX56 2011  Factory Service Manual 
P0550 PSP SENSOREC-373
< DTC/CIRCUIT DIAGNOSIS > [VK56VD]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
NO >> Repair or replace error-detected parts.
6.CHECK PSP SENSOR SIGNAL CIRCUIT
1. Turn ignition switch OFF.

Page 2398 of 5598

INFINITI QX56 2011  Factory Service Manual 
EC-374
< DTC/CIRCUIT DIAGNOSIS >[VK56VD]
P0603 ECM POWER SUPPLY
P0603 ECM POWER SUPPLY
DTC LogicINFOID:0000000006217873
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
1. Turn igniti

Page 2399 of 5598

INFINITI QX56 2011  Factory Service Manual 
P0603 ECM POWER SUPPLYEC-375
< DTC/CIRCUIT DIAGNOSIS > [VK56VD]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
Refer to 
GI-40, "Intermittent Incident".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair

Page 2400 of 5598

INFINITI QX56 2011  Factory Service Manual 
EC-376
< DTC/CIRCUIT DIAGNOSIS >[VK56VD]
P0605 ECM
P0605 ECM
DTC LogicINFOID:0000000006217875
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
1. Turn ignition switch OFF and wait at
Trending: coolant reservoir, trunk release, fuse box, brake fluid, charging, height adjustment, USB port