Nissan Quest E52. Instruction — part 480
EC-130
< BASIC INSPECTION >
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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.
.
>> 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-58, "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-131
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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.
.
>> 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.)
EC-132
< BASIC INSPECTION >
[VQ35DE]
BASIC INSPECTION
2.
Perform initialization of NVIS (NATS) system and registration of all NVIS (NATS) ignition key IDs. Refer to
.
>> GO TO 4.
19.
INSPECTION END
If ECM is replaced during this BASIC INSPECTION procedure, perform
>> INSPECTION END
ADDITIONAL SERVICE WHEN REPLACING ECM
EC-133
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ADDITIONAL SERVICE WHEN REPLACING ECM
Description
INFOID:0000000009650993
When replacing ECM, the following procedure must be performed. (For details, refer to
.)
PROGRAMMING OPERATION
NOTE:
After replacing with a blank ECM, programming is required to write ECM information. Be sure to follow the pro-
cedure to perform the programming.
BEFORE REPLACEMENT
When replacing ECM, perform “SAVING DATA FOR REPLC CPU” in “WORK SUPPORT” of “ENGINE” by
using CONSULT to save current ECM data before replacement.
AFTER REPLACEMENT
After replacing ECM, the following items must be performed:
• Write data after replace CPU
• Accelerator pedal released position learning
• Throttle valve closed position learning
• Idle air volume learning
Work Procedure
INFOID:0000000009650994
1.
SAVE ECM DATA
With CONSULT
1.
Turn ignition switch OFF.
2.
Reconnect all harness connectors disconnected.
3.
Turn ignition switch ON.
4.
Select “SAVING DATA FOR REPLC CPU” in “WORK SUPPORT” mode of “ENGINE” using CONSULT.
5.
Follow the instruction of CONSULT display.
NOTE:
• Necessary data in ECM is copied and saved to CONSULT.
• Go to Step 2 regardless of with or without success in saving data.
>> GO TO 2.
2.
CHECK ECM PART NUMBER
Check ECM part number to see whether it is blank ECM or not.
NOTE:
• Part number of blank ECM is 23703 -
×××××
.
• Check part number when ordering ECM or the one included in the label on the container box.
Is the ECM a blank ECM?
YES
>> GO TO 3.
NO
>> GO TO 5.
3.
SAVE ECM PART NUMBER
Read out the part number from the old ECM and save the number, following the programming instructions.
Refer to CONSULT Operation Instruction.
NOTE:
• The ECM part number is saved in CONSULT.
• Even when ECM part number is not saved in CONSULT, go to 4.
>> GO TO 4.
4.
PERFORM ECM PROGRAMMING
After replacing ECM, perform the ECM programming. Refer to CONSULT Operation Instruction.
NOTE:
• Refer to
EC-460, "Removal and Installation"
for replacement of ECM.
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