Nissan Pathfinder. Manual — part 460
EC-146
< BASIC INSPECTION >
[VQ35DE]
VIN REGISTRATION
VIN REGISTRATION
Description
INFOID:0000000009178083
VIN Registration is an operation to register VIN in ECM. It must be performed each time ECM is replaced.
NOTE:
Accurate VIN which is registered in ECM may be required for Inspection & Maintenance (I/M).
Work Procedure
INFOID:0000000009178084
1.
CHECK VIN
Check the VIN of the vehicle and note it. Refer to
.
>> GO TO 2.
2.
PERFORM VIN REGISTRATION
With CONSULT
1. Turn ignition switch ON with engine stopped.
2. Select “VIN REGISTRATION” in “WORK SUPPORT” mode.
3. Follow the instructions on the CONSULT display.
>> END
BASIC INSPECTION
EC-147
< BASIC INSPECTION >
[VQ35DE]
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BASIC INSPECTION
Work Procedure
INFOID:0000000009178085
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 leakage
-
Air cleaner clogging
-
Gasket
3. Check that electrical or mechanical loads are not applied.
-
Head lamp 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.
Check that engine stays below 1,000 rpm.
5. Run engine at approximately 2,000 rpm for approximately 2 min-
utes under no load.
6. Check that no DTC is displayed with CONSULT or GST.
Are any DTCs 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 approximately 2,000 rpm for approximately 2 minutes under no load.
SEF983U
SEF976U
SEF977U
EC-148
< BASIC INSPECTION >
[VQ35DE]
BASIC INSPECTION
2. Rev engine (2,000 to 3,000 rpm) 2 or 3 times under no load,
then run engine at idle speed for approximately 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 engine.
2. Perform
.
>> GO TO 5.
5.
PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Perform
>> GO TO 6.
6.
PERFORM IDLE AIR VOLUME LEARNING
Perform
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 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 (PHASE) and circuit. Refer to
.
• Check crankshaft position sensor (POS) and circuit. Refer to
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> Repair or replace malfunctioning part. Then GO TO 4.
9.
CHECK ECM FUNCTION
1. Substitute with a non-malfunctioning ECM to check ECM function. (ECM may be the cause of the incident,
although this is rare.)
2. Perform initialization of NVIS (NATS) system and registration of all NVIS (NATS) ignition key IDs. Refer to
SEC-74, "ECM : Work Procedure"
>> GO TO 4.
10.
CHECK IGNITION TIMING
1. Run engine at idle.
2. Check ignition timing with a timing light.
For procedure, refer to
PBIA8513J
BASIC INSPECTION
EC-149
< BASIC INSPECTION >
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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 engine.
2. Perform
.
>> GO TO 12.
12.
PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Perform
>> GO TO 13.
13.
PERFORM IDLE AIR VOLUME LEARNING
Perform
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 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
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 (PHASE) and circuit. Refer to
• Check crankshaft position sensor (POS) and circuit. Refer to
Is the inspection result normal?
YES
>> GO TO 18.
NO
>> Repair or replace malfunctioning part. Then GO TO 4.
18.
CHECK ECM FUNCTION
1. Substitute with a non-malfunctioning ECM to check ECM function. (ECM may be the cause of the incident,
although this is rare.)
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