Nissan Juke F15. Instruction — part 568
P1226 TP SENSOR
EC-1085
< DTC/CIRCUIT DIAGNOSIS >
[MR EXCEPT FOR NISMO RS MODELS]
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P1226 TP SENSOR
DTC Logic
INFOID:0000000012198604
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
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.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10 V at idle.
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Turn ignition switch OFF, wait at least 10 seconds.
3. Turn ignition switch ON.
4. Repeat steps 2 and 3 for 32 times.
5. Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Proceed to
EC-1085, "Diagnosis Procedure"
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000012198605
1.
CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
1. Turn ignition switch OFF.
2. Remove the intake air duct. Refer to
3. Check if foreign matter is caught between the throttle valve and the housing.
Is the inspection result normal?
YES
>> Replace electric throttle control actuator. Refer to
.
NO
>> Remove the foreign matter and clean the electric throttle control actuator inside, then perform
throttle valve closed position learning. Refer to
.
DTC No.
Trouble diagnosis name
(Trouble diagnosis con-
tent)
DTC detecting condition
Possible cause
P1226
CTP LEARNING-B1
(Closed throttle position
learning performance)
Closed throttle position learning is not performed
successfully, repeatedly.
Electric throttle control actuator
(TP sensor 1 and 2)
EC-1086
< DTC/CIRCUIT DIAGNOSIS >
[MR EXCEPT FOR NISMO RS MODELS]
P1423, P1424 COLD START CONTROL
P1423, P1424 COLD START CONTROL
Description
INFOID:0000000012198606
ECM controls fuel injection timing and fuel injection quantity when engine is started with the engine cold.
This control promotes the activation of three way catalyst by heating the catalyst and reduces emissions.
DTC Logic
INFOID:0000000012198607
DTC DETECTION LOGIC
NOTE:
• If DTC P1423 or P1424 is displayed with other DTC, first perform the trouble diagnosis for other DTC.
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
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 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
WITH CONSULT
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Select “DATA MONITOR” mode of “ENGINE” using CONSULT.
4. Check that “COOLAN TEMP/S”.
-
If it is between 5
°C (41°F) and 40°C (104°F) go to the following steps.
-
If it is below 5
°C (41°F) warm engine up to more than 5°C (41°F) and retry from step 1.
-
If it is above 40
°C (104°F) cool engine down to less than 40°C (104°F) and retry from step 1.
5. Start engine and let it idle for 5 minutes.
6. Check 1st trip DTC.
WITH GST
Follow the procedure “With CONSULT” above.
Is 1st trip DTC detected?
YES
>> Proceed to
EC-1086, "Diagnosis Procedure"
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000012198608
1.
INSPECTION START
1. Turn ignition switch ON.
2. Erase DTC.
3. Perform DTC confirmation procedure. Refer to
.
4. Check 1st trip DTC.
DTC No.
Trouble diagnosis name
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P1423
COLD START CONTROL
(Cold start emission reduction
strategy monitoring)
ECM does not control fuel injection timing prop-
erly when engine is started with the engine cold.
ECM
P1424
COLD START CONTROL
(Cold start emission reduction
strategy monitoring)
ECM does not control fuel injection quantity
properly when engine is started with the engine
cold.
P1423, P1424 COLD START CONTROL
EC-1087
< DTC/CIRCUIT DIAGNOSIS >
[MR EXCEPT FOR NISMO RS MODELS]
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Is the 1st trip DTC P1423 or P1424 displayed again?
YES
>> Replace ECM. Refer to
EC-1256, "Removal and Installation"
NO
>> INSPECTION END
EC-1088
< DTC/CIRCUIT DIAGNOSIS >
[MR EXCEPT FOR NISMO RS MODELS]
P1451 PRESSURE SENSOR
P1451 PRESSURE SENSOR
DTC Logic
INFOID:0000000012198609
DTC DETECTION LOGIC
NOTE:
If DTC P1451 is displayed with DTC P0452 or P0453, first perform the trouble diagnosis for DTC P0452 or
P0453. Refer to
.
DTC CONFIRMATION PROCEDURE
NOTE:
Never refuel before and during the following procedure.
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
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 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and warm it up to normal operating temperature
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Start the engine. Wait at least for 15 seconds after the start of idle running.
4. Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Proceed to
EC-1088, "Diagnosis Procedure"
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000012198610
1.
CHECK HOSE AND PIPING
1. Turn ignition switch OFF.
2. Check the following.
-
Blockage, crush, or damage in the hose and the piping of EVAP purge line between fuel tank and intake
manifold.
-
Blockage, crush, or damage in the hose and the piping of intake air passage between inlet air duct and
intake manifold.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace error-detected parts
2.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Check EVAP control system pressure sensor. Refer to
EC-1089, "Component Inspection (EVAP Control Sys-
Is the inspection result normal?
DTC No.
Trouble diagnosis
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P1451
TC/SC PRES-EVAP PRES
(EVAP control system pressure
sensor/turbocharger boost sen-
sor correlation)
ECM detects a state that the pressure differ-
ence remains
−13.0 kPa (−98 mmHg, −3.83
inHg) or less/13.5 kPa (102 mmHg, 3.99 in-
Hg) or more for continuously for 5 seconds or
more under the condition that the pressure of
the EVAP control system pressure sensor
and that of the turbocharger boost sensor are
equal.
• EVAP control system pressure sensor
• Turbocharger boost sensor
• Clogging, crushing, or damage in
hose or piping
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