Nissan Rogue. Manual - part 523
EC-360
< DTC/CIRCUIT DIAGNOSIS >
[QR25DE]
P050A, P050B, P050E COLD START CONTROL
Follow the procedure “With CONSULT” above.
Is the value of “COOLAN TEMP/S” between 15
°C (59°F) and 36°C (97°F)?
YES
>> GO TO 4.
NO-1 [If it is below 15
°C (59°F)]>>Warm up the engine until the value of “COOLAN TEMP/S” reaches 15°C
(59
°F) or more. Retry from step 1.
NO-2 [If it is above 36
°C (97°F)]>>Cool engine down to less than 36°C (97°F). Retry from step 1.
4.
PERFORM DTC CONFIRMATION PROCEDURE-2
With CONSULT
1. Set the select lever in N range.
2. Start the engine and warm up in idle with the value of “COOLAN TEMP/S” between 15
°C (59°F) and 40°C
(104
°F) for more than 15 seconds.
3. Check 1st trip DTC.
With GST
Follow the procedure “With CONSULT” above.
Is 1st trip DTC detected?
YES
>> Proceed to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000011278071
1.
CHECK DTC PRIORITY
If DTC P050A, P050B or P050E is displayed with other DTC, first perform the trouble diagnosis for other DTC.
Is applicable DTC detected?
YES
>> Perform diagnosis of applicable. Refer to
.
NO
>> GO TO 2.
2.
PERFORM IDLE AIR VOLUME LEARNING
Perform
Is Idle Air Volume Learning carried out successfully?
YES
>> GO TO 3.
NO
>> Follow the instruction of Idle Air Volume Learning.
3.
CHECK INTAKE SYSTEM
Check for the cause of intake air volume lacking. Refer to the following.
• Crushed intake air passage
• Intake air passage clogging
• Clogging of throttle body
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace malfunctioning part
4.
CHECK FUEL INJECTION SYSTEM FUNCTION
Perform DTC Confirmation Procedure for DTC P0171. Refer to
.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Proceed to
for DTC P0171.
5.
PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Erase DTC.
3. Perform DTC Confirmation Procedure.
Is the 1st trip DTC P050A, P050B or P050E displayed again?
YES
>> Replace ECM. Refer to
EC-502, "Removal and Installation"
NO
>> INSPECTION END