Nissan Juke F15. Manual - part 525
P0181 FTT SENSOR
EC-913
< DTC/CIRCUIT DIAGNOSIS >
[MR EXCEPT FOR NISMO RS MODELS]
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P0181 FTT SENSOR
DTC Logic
INFOID:0000000012198408
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
INSPECTION START
Is it necessary to erase permanent DTC?
YES
>> GO TO 7.
NO
>> GO TO 2.
2.
PRECONDITIONING
If DTC CONFIRMATION PROCEDURE has been previously conducted, always perform the following proce-
dure before conducting the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
>> GO TO 3.
3.
PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION A-I
1. Turn ignition switch ON and wait at least 10 seconds.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Proceed to
.
NO
>> GO TO 4.
4.
CHECK ENGINE COOLANT TEMPERATURE
With CONSULT
1. Select “COOLANT TEMP/S” in “DATA MONITOR” with CONSULT.
2. Check “COOLANT TEMP/S” value.
With GST
Follow the procedure “With CONSULT” above.
“COOLANT TEMP/S” less than 60
°C (140°F)?
YES
>> INSPECTION END
NO
>> GO TO 5.
5.
PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION A-II
With CONSULT
1. Cool engine down until “COOLANT TEMP/S” is less than 60
°C (140°F).
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0181
FTT SENSOR
(Fuel temperature sensor a cir-
cuit range/performance)
A)
Rationally incorrect voltage from the
sensor is sent to ECM, compared with
the voltage signals from ECT sensor
and intake air temperature sensor.
• Harness or connectors
(The FTT sensor circuit is open or
shorted)
• FTT sensor
B)
The comparison result of signals trans-
mitted to ECM from each temperature
sensor (IAT sensor, ECT sensor, EOT
sensor, and FTT sensor) shows that
the voltage signal of the FTT sensor is
higher/lower than that of other temper-
ature sensors when the engine is start-
ed with its cold state.
• Harness or connectors
(High or low resistance in the FTT
sensor circuit)
• FTT sensor