Nissan Cube. Instruction — part 281
EC-10
< BASIC INSPECTION >
[MR18DE]
DIAGNOSIS AND REPAIR WORK FLOW
• Perform Component Function Check if DTC CONFIRMATION PROCEDURE is not included on Service
Instruction. This simplified check procedure is an effective alternative though DTC cannot be detected during
this check.
If the result of Component Function Check is NG, it is the same as the detection of DTC by DTC CONFIR-
MATION PROCEDURE.
Is DTC detected?
YES
>> GO TO 10.
NO
>> Check according to
GI-40, "Intermittent Incident"
.
6.
PERFORM BASIC INSPECTION
Perform
EC-13, "BASIC INSPECTION : Special Repair Requirement"
Do you have CONSULT?
YES
>> GO TO 7.
NO
>> GO TO 9.
7.
PERFORM SPEC IN DATA MONITOR MODE
With CONSULT
Make sure that “MAS A/F SE-B1”, “MAS A/F SE-B2”, “B/FUEL SCHDL”, “A/F ALPHA-B1” and “A/F ALPHA-
B2” are within the SP value using CONSULT “SPEC” in “DATA MONITOR” mode of “ENGINE”. Refer to
121, "Component Function Check"
Is the measurement value within the SP value?
YES
>> GO TO 9.
NO
>> GO TO 8.
8.
DETECT MALFUNCTIONING PART BY TROUBLE DIAGNOSIS - SPECIFICATION VALUE
Detect malfunctioning part according to
.
Is a malfunctioning part detected?
YES
>> GO TO 11.
NO
>> GO TO 9.
9.
DETECT MALFUNCTIONING SYSTEM BY SYMPTOM TABLE
Detect malfunctioning system according to
based on the confirmed symptom in
step 4, and determine the trouble diagnosis order based on possible causes and symptoms.
>> GO TO 10.
10.
DETECT MALFUNCTIONING PART BY DIAGNOSIS PROCEDURE
Inspect according to Diagnosis Procedure of the system.
NOTE:
The Diagnosis Procedure in EC section described based on open circuit inspection. A short circuit inspection
is also required for the circuit check in the Diagnosis Procedure. For details, refer to
.
Is a malfunctioning part detected?
YES
>> GO TO 11.
NO
>> Monitor input data from related sensors or check voltage of related ECM terminals using CON-
SULT. Refer to
.
11.
REPAIR OR REPLACE THE MALFUNCTIONING PART
1.
Repair or replace the malfunctioning part.
2.
Reconnect parts or connectors disconnected during Diagnosis Procedure again after repair and replace-
ment.
3.
Check DTC. If DTC is displayed, erase it.
With CONSULT: Refer to “How to Erase DTC and 1st Trip DTC” in
.
Without CONSULT: Refer to “How to Erase Self-diagnostic Results” in
>> GO TO 12.
DIAGNOSIS AND REPAIR WORK FLOW
EC-11
< BASIC INSPECTION >
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12.
FINAL CHECK
When DTC was detected in step 2, perform DTC CONFIRMATION PROCEDURE or Component Function
Check again, and then make sure that the malfunction have been completely repaired.
When symptom was described from the customer, refer to confirmed symptom in step 3 or 4, and make sure
that the symptom is not detected.
Is DTC detected and does symptom remain?
YES-1 >> DTC is detected: GO TO 10.
YES-2 >> Symptom remains: GO TO 6.
NO-1
>> No request for I/M examination from the customer: Before returning the vehicle to the customer,
always erase unnecessary DTC in ECM and TCM (
With CONSULT: Refer to “How to Read
DTC and 1st Trip DTC” in
,
Without CONSULT: Refer to “How to
Read Self-diagnostic Results” in
EC-109, "On Board Diagnosis Function"
NO-2
>> I/M examination, requested from the customer: GO TO 13.
13.
PREPARE FOR I/M EXAMINATION
1.
Set SRT codes. Refer to
.
2.
Erase permanent DTCs. Refer to
>> INSPECTION END.
Diagnostic Work Sheet
INFOID:0000000009947170
DESCRIPTION
There are many operating conditions that lead to the malfunction of
engine components. A good grasp of such conditions can make trou-
bleshooting faster and more accurate.
In general, each customer feels differently about an incident. It is
important to fully understand the symptoms or conditions for a cus-
tomer complaint.
Utilize a diagnostic worksheet like the WORKSHEET SAMPLE
below in order to organize all the information for troubleshooting.
Some conditions may cause the MIL to illuminate steady or blink and
DTC to be detected. Examples:
• Vehicle ran out of fuel, which caused the engine to misfire.
• Fuel filler cap was left off or incorrectly screwed on, allowing fuel to
evaporate into the atmosphere.
SEF907L
EC-12
< BASIC INSPECTION >
[MR18DE]
DIAGNOSIS AND REPAIR WORK FLOW
WORKSHEET SAMPLE
MTBL0017
INSPECTION AND ADJUSTMENT
EC-13
< BASIC INSPECTION >
[MR18DE]
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INSPECTION AND ADJUSTMENT
BASIC INSPECTION
BASIC INSPECTION : Special Repair Requirement
INFOID:0000000009947171
1.
INSPECTION START
1.
Check service records for any recent repairs that may indicate a related malfunction, or a current need for
scheduled maintenance.
2.
Open engine hood and check the following:
-
Harness connectors for improper connections
-
Wiring harness for improper connections, pinches and cut
-
Vacuum hoses for splits, kinks and improper connections
-
Hoses and ducts for leaks
-
Air cleaner clogging
-
Gasket
3.
Confirm that electrical or mechanical loads are not applied.
-
Headlamp switch is OFF.
-
Air conditioner switch is OFF.
-
Rear window defogger switch is OFF.
-
Steering wheel is in the straight-ahead position, etc.
4.
Start engine and warm it up until engine coolant temperature
indicator points the middle of gauge.
Ensure engine stays below 1,000 rpm.
5.
Run engine at about 2,000 rpm for about 2 minutes under no
load.
6.
Make sure that no DTC is displayed with CONSULT or GST.
Is any DTC detected?
YES
>> GO TO 2.
NO
>> GO TO 3.
2.
REPAIR OR REPLACE
Repair or replace components as necessary according to corresponding Diagnostic Procedure.
>> GO TO 3
3.
CHECK IDLE SPEED
1.
Run engine at about 2,000 rpm for about 2 minutes under no load.
SEF983U
SEF976U
SEF977U
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