2007 INFINITI QX56 Factory Service Manual

USB port dashboard warning lights climate control heating open hood wheel alignment

Page 1393 of 3061

INFINITI QX56 2007 Factory Service Manual EC-310
< SERVICE INFORMATION >
DTC P0181 FTT SENSOR
DTC P0181 FTT SENSOR
Component DescriptionINFOID:0000000003531800
The fuel tank temperature sensor is used to detect the fuel tempera-
ture inside t

EC-310
< SERVICE INFORMATION >
DTC P0181 FTT SENSOR
DTC P0181 FTT SENSOR
Component DescriptionINFOID:0000000003531800
The fuel tank temperature sensor is used to detect the fuel tempera-
ture inside the fuel tank. The sensor modifies a voltage signal from
the ECM. The modified signal returns to the ECM as the fuel temper-
ature input. The sensor uses a thermistor which is sensitive to the
change in temperature. The electrical resistance of the thermistor
decreases as temperature increases.

*: This data is reference value and is measured between ECM terminal 107 (Fuel
tank temperature sensor) and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output
voltage. Doing so may result in damage to the ECM's transistor.
Use a ground other than ECM terminals, such as the ground.
On Board Diagnosis LogicINFOID:0000000003531801
DTC Confirmation ProcedureINFOID:0000000003531802
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Wait at least 10 seconds.
If the result is NG, go to EC-312, "
Diagnosis Procedure".
If the result is OK, go to following step.
4. Check “COOLAN TEMP/S” value.
If “COOLAN TEMP/S” is less than 60°C (140°F), the result will
be OK.
If “COOLAN TEMP/S” is above 60°C (140°F), go to the following
step.
5. Cool engine down until “COOLAN TEMP/S” is less than 60°C
(140°F).
BBIA0583E
Fluid temperature
°C (°F)Voltage*
VResistance
kΩ
20 (68) 3.5 2.3 - 2.7
50 (122) 2.2 0.79 - 0.90
SEF012P
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0181
0181Fuel tank temperature
sensor circuit range/per-
formanceRationally incorrect voltage from the sensor is
sent to ECM, compared with the voltage signals
from engine coolant temperature sensor and in-
take air temperature sensor.• Harness or connectors
(The sensor circuit is open or shorted)
• Fuel tank temperature sensor
SEF174Y

Page 1394 of 3061

INFINITI QX56 2007 Factory Service Manual DTC P0181 FTT SENSOR
EC-311
< SERVICE INFORMATION >
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
6. Wait at least 10 seconds.
7. If 1st trip DTC is detected, go to EC-312, "
Diagnosis Procedure".
WITH GST
Follow

Page 1395 of 3061

INFINITI QX56 2007 Factory Service Manual EC-312
< SERVICE INFORMATION >
DTC P0181 FTT SENSOR
Diagnosis Procedure
INFOID:0000000003531804
1.CHECK FUEL TANK TEMPERATURE SENSOR POWER SUPPLY CIRCUIT
1. Disconnect “fuel level sensor unit and fu

Page 1396 of 3061

INFINITI QX56 2007 Factory Service Manual DTC P0181 FTT SENSOR
EC-313
< SERVICE INFORMATION >
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
NG >> Replace “fuel level sensor unit and fuel pump”.
6.CHECK INTERMITTENT INCIDENT
Refer to EC-138
.
>>INSPECTI

Page 1397 of 3061

INFINITI QX56 2007 Factory Service Manual EC-314
< SERVICE INFORMATION >
DTC P0182, P0183 FTT SENSOR
DTC P0182, P0183 FTT SENSOR
Component DescriptionINFOID:0000000003531807
The fuel tank temperature sensor is used to detect the fuel tempera-

Page 1398 of 3061

INFINITI QX56 2007 Factory Service Manual DTC P0182, P0183 FTT SENSOR
EC-315
< SERVICE INFORMATION >
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
WITH GST
Follow the procedure “WITH CONSULT-II” above.
Wiring DiagramINFOID:0000000003531810
Diagnosis P

Page 1399 of 3061

INFINITI QX56 2007 Factory Service Manual EC-316
< SERVICE INFORMATION >
DTC P0182, P0183 FTT SENSOR
1. Disconnect “fuel level sensor unit and fuel pump” harness con-
nector.
2. Turn ignition switch ON.
3. Check voltage between “fuel le

Page 1400 of 3061

INFINITI QX56 2007 Factory Service Manual DTC P0182, P0183 FTT SENSOR
EC-317
< SERVICE INFORMATION >
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
>>INSPECTION END
Component InspectionINFOID:0000000003531812
FUEL TANK TEMPERATURE SENSOR
1. Remove fuel leve

Load next 8 pages

Page: < prev 1-10 ... 1361-1368 1369-1376 1377-1384 1385-1392 1393-1400 1401-1408 1409-1416 1417-1424 1425-1432 ... 3064 next >

maintenance check engine light low beam warning light 4WD trailer