Nissan X-Trail 32. Instruction — part 755
BASIC INSPECTION
EC-149
< BASIC INSPECTION >
[MR20DD]
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BASIC INSPECTION
Work Procedure
INFOID:0000000010775088
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 to 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 Diagnos-
tic Test Mode II (self-diagnostic results).
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 TARGET IDLE SPEED
1.
Run engine at about 2,000 rpm for about 2 minutes under no load.
2.
Rev engine (2,000 to 3,000 rpm) two or three times under no
load, then run engine at idle speed for about 1 minute.
3.
Check idle speed.
For procedure, refer to
.
For specification, refer to
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> GO TO 4.
4.
PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING
1.
Stop the engine.
2.
Perform accelerator pedal released position learning. Refer to
.
>> GO TO 5.
5.
PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
SEF983U
SEF977U
PBIA8513J
EC-150
< BASIC INSPECTION >
[MR20DD]
BASIC INSPECTION
Perform throttle valve closed position learning. Refer to
.
>> GO TO 6.
6.
PERFORM IDLE AIR VOLUME LEARNING
Perform idle air volume learning. Refer to
.
Is Idle Air Volume Learning carried out successfully?
YES
>> GO TO 7.
NO
>> Follow the instruction of IDLE AIR VOLUME LEARNING. Then GO TO 4.
7.
CHECK TARGET IDLE SPEED AGAIN
1.
Start engine and warm it up to normal operating temperature.
2.
Check idle speed.
For procedure, refer to
.
For specification, refer to
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> GO TO 8.
8.
DETECT MALFUNCTIONING PART
Check the Following.
• Check camshaft position sensor and circuit. Refer to
.
• Check exhaust valve timing control position sensor and circuit. Refer to
• Check crankshaft position sensor and circuit. Refer to
.
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> Repair or replace. Then GO TO 4.
9.
CHECK ECM FUNCTION
Substitute another known-good ECM to check ECM function. (ECM may be the cause of an incident, but this
is a rare case.)
>> GO TO 4.
10.
CHECK IGNITION TIMING
1.
Run engine at idle.
2.
Check ignition timing with a timing light.
For procedure, refer to
.
For specification, refer to
Is the inspection result normal?
YES
>> GO TO 19.
NO
>> GO TO 11.
11.
PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING
1.
Stop the engine.
2.
Perform accelerator pedal released position learning. Refer to
.
>> GO TO 12.
12.
PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Perform throttle valve closed position learning. Refer to
.
: Timing indicator
JMBIA0315ZZ
BASIC INSPECTION
EC-151
< BASIC INSPECTION >
[MR20DD]
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>> GO TO 13.
13.
PERFORM IDLE AIR VOLUME LEARNING
Perform idle air volume learning. Refer to
.
Is Idle Air Volume Learning carried out successfully?
YES
>> GO TO 14.
NO
>> Follow the instruction of IDLE AIR VOLUME LEARNING. Then GO TO 4.
14.
CHECK TARGET IDLE SPEED AGAIN
1.
Start engine and warm it up to normal operating temperature.
2.
Check idle speed.
For procedure, refer to
.
For specification, refer to
Is the inspection result normal?
YES
>> GO TO 15.
NO
>> GO TO 17.
15.
CHECK IGNITION TIMING AGAIN
1.
Run engine at idle.
2.
Check ignition timing with a timing light.
For procedure, refer to
.
For specification, refer to
Is the inspection result normal?
YES
>> GO TO 19.
NO
>> GO TO 16.
16.
CHECK TIMING CHAIN INSTALLATION
Check timing chain installation. Refer to
EM-68, "Removal and Installation"
Is the inspection result normal?
YES
>> GO TO 17.
NO
>> Repair the timing chain installation. Then GO TO 4.
17.
DETECT MALFUNCTIONING PART
Check the Following.
• Check camshaft position sensor and circuit. Refer to
.
• Check exhaust valve timing control position sensor and circuit. Refer to
• Check crankshaft position sensor and circuit. Refer to
.
Is the inspection result normal?
YES
>> GO TO 18.
NO
>> Repair or replace. Then GO TO 4.
18.
CHECK ECM FUNCTION
Substitute another known-good ECM to check ECM function. (ECM may be the cause of an incident, but this
is a rare case.)
>> GO TO 4.
19.
INSPECTION END
If ECM is replaced during this BASIC INSPECTION procedure, perform
>> INSPECTION END
: Timing indicator
JMBIA0315ZZ
EC-152
< BASIC INSPECTION >
[MR20DD]
FUEL PRESSURE CHECK
FUEL PRESSURE CHECK
Work Procedure
INFOID:0000000010775089
FUEL PRESSURE RELEASE
1.
FUEL PRESSURE RELEASE
With CONSULT
1.
Turn ignition switch ON.
2.
Perform “ENGINE” in “WORK SUPPORT” mode with CONSULT.
3.
Start the engine.
4.
After engine stalls, crank it two or three times to release all fuel pressure.
5.
Turn ignition switch OFF.
Without CONSULT
1.
Remove fuel pump fuse
located in IPDM E/R.
2.
Start the engine.
3.
After engine stalls, crank it two or three times to release all fuel
pressure.
4.
Turn ignition switch OFF.
5.
Reinstall fuel pump fuse after servicing fuel system.
>> INSPECTION END
FUEL PRESSURE CHECK
1.
FUEL PRESSURE CHECK
1.
Release fuel pressure.
2.
Connect fuel hose for fuel pressure check (B) to fuel pressure
gauge (SST: ST19590000) (A). Then, connect fuel hose for fuel
pressure check to fuel tube adapter (SST: KV10120000) with
hose clamp (C).
CAUTION:
• Use suitable fuel hose for fuel pressure check (genuine
NISSAN fuel hose)
• To avoid unnecessary force or tension to hose, use moderately long fuel hose for fuel pressure
check.
• Wipe off oil or dirt from hose insertion part using cloth moistened with gasoline.
• Apply proper amount of gasoline on the hose insertion part.
• Use NISSAN genuine hose clamp (part number: 16439 N4710 or 16439 N4710)
• Install hose clamp to the hose end position within 1- 2 mm (0.04 - 0.08 in) and tighten hose clamp
to the specified torque.
3.
Disconnect quick connector and disconnect fuel feed hose from high pressure fuel pump. Refer to
CAUTION:
• Make sure to release fuel pressure before removal of fuel line.
• Do the following procedure in the place where ventilation is good without the combustible.
NOTE:
• Prepare pans or saucers under the disconnected fuel line because the fuel may spill out. The fuel pres-
sure cannot be completely released because this models do not have fuel return system.
JSBIA0597ZZ
: To high pressure fuel pump
: To quick connector
Tightening torque: 1 - 1.5 N·m (0.1 - 0.15 kg
−
m)
PBIB2982E
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