Nissan Murano Z50 (2005 year). Manual — part 82
ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-67
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Revision: 2005 August
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EXPLANATION FOR DRIVING PATTERNS FOR “MISFIRE <EXHAUST QUALITY DETERIORA-
TION>”, “FUEL INJECTION SYSTEM”
<Driving Pattern B>
Driving pattern B means the vehicle operation as follows:
All components and systems should be monitored at least once by the OBD system.
●
The B counter will be cleared when the malfunction is detected once regardless of the driving pattern.
●
The B counter will be counted up when driving pattern B is satisfied without any malfunction.
●
The MIL will go off when the B counter reaches 3. (*2 in “OBD SYSTEM OPERATION CHART”)
<Driving Pattern C>
Driving pattern C means the vehicle operation as follows:
The following conditions should be satisfied at the same time:
Engine speed: (Engine speed in the freeze frame data)
±
375 rpm
Calculated load value: (Calculated load value in the freeze frame data) x (1
±
0.1) [%]
Engine coolant temperature (T) condition:
●
When the freeze frame data shows lower than 70
°
C (158
°
F), T should be lower than 70
°
C (158
°
F).
●
When the freeze frame data shows higher than or equal to 70
°
C (158
°
F), T should be higher than or equal
to 70
°
C (158
°
F).
Example:
If the stored freeze frame data is as follows:
Engine speed: 850 rpm, Calculated load value: 30%, Engine coolant temperature: 80
°
C (176
°
F)
To be satisfied with driving pattern C, the vehicle should run under the following conditions:
Engine speed: 475 - 1,225 rpm, Calculated load value: 27 - 33%, Engine coolant temperature: more than 70
°
C
(158
°
F)
●
The C counter will be cleared when the malfunction is detected regardless of vehicle conditions above.
●
The C counter will be counted up when vehicle conditions above is satisfied without the same malfunction.
●
The DTC will not be displayed after C counter reaches 80 (*2 in OBD SYSTEM OPERATION CHART).
●
The 1st trip DTC will be cleared when C counter is counted once without the same malfunction after DTC
is stored in ECM.
EC-68
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2005 August
2005 Murano
RELATIONSHIP BETWEEN MIL, DTC, 1ST TRIP DTC AND DRIVING PATTERNS EXCEPT FOR
“MISFIRE <EXHAUST QUALITY DETERIORATION>”, “FUEL INJECTION SYSTEM”
*1: When the same malfunction is
detected in two consecutive trips,
MIL will light up.
*2: MIL will go off after vehicle is driven
3 times (pattern B) without any mal-
functions.
*3: When the same malfunction is
detected in two consecutive trips, the
DTC and the freeze frame data will
be stored in ECM.
*4: The DTC and the freeze frame data
will not be displayed any longer after
vehicle is driven 40 times (pattern A)
without the same malfunction.
(The DTC and the freeze frame data
still remain in ECM.)
*5: When a malfunction is detected for
the first time, the 1st trip DTC and
the 1st trip freeze frame data will be
stored in ECM.
*6: 1st trip DTC will be cleared after
vehicle is driven once (pattern B)
without the same malfunction.
*7: When the same malfunction is
detected in the 2nd trip, the 1st trip
freeze frame data will be cleared.
SEF393SD
ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-69
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Revision: 2005 August
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EXPLANATION FOR DRIVING PATTERNS EXCEPT FOR “MISFIRE <EXHAUST QUALITY
DETERIORATION>”, “FUEL INJECTION SYSTEM”
<Driving Pattern A>
●
The A counter will be cleared when the malfunction is detected regardless of (1) - (4).
●
The A counter will be counted up when (1) - (4) are satisfied without the same malfunction.
●
The DTC will not be displayed after the A counter reaches 40 (*2 in OBD SYSTEM OPERATION CHART).
<Driving Pattern B>
Driving pattern B means the vehicle operation as follows:
All components and systems should be monitored at least once by the OBD system.
●
The B counter will be cleared when the malfunction is detected once regardless of the driving pattern.
●
The B counter will be counted up when driving pattern B is satisfied without any malfunctions.
●
The MIL will go off when the B counter reaches 3 (*2 in OBD SYSTEM OPERATION CHART).
AEC574
EC-70
BASIC SERVICE PROCEDURE
Revision: 2005 August
2005 Murano
BASIC SERVICE PROCEDURE
PFP:00018
Basic Inspection
ABS004AV
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-II or GST.
OK or NG
OK
>> GO TO 3.
NG
>> GO TO 2.
2.
REPAIR OR REPLACE
Repair or replace components as necessary according to corresponding Diagnostic Procedure.
>> GO TO 3.
SEF983U
SEF976U
SEF977U
BASIC SERVICE PROCEDURE
EC-71
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3.
CHECK TARGET IDLE SPEED
With CONSULT-II
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.
Read idle speed in “DATA MONITOR” mode with CONSULT-II.
Refer to
Without CONSULT-II
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. Refer to
OK or NG
OK
>> GO TO 10.
NG
>> GO TO 4.
4.
PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING
1.
Stop engine.
2.
Perform
EC-89, "Accelerator Pedal Released Position Learning"
>> GO TO 5.
5.
PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Perform
EC-89, "Throttle Valve Closed Position Learning"
>> GO TO 6.
PBIA8513J
650
±
50 rpm (in P or N position)
SEF058Y
650
±
50 rpm (in P or N position)
EC-72
BASIC SERVICE PROCEDURE
Revision: 2005 August
2005 Murano
6.
PERFORM IDLE AIR VOLUME LEARNING
Refer to
EC-90, "Idle Air Volume Learning"
Is Idle Air Volume Learning carried out successfully?
Yes or No
Yes
>> GO TO 7.
No
>> 1. Follow the instruction of Idle Air Volume Learning.
2. GO TO 4.
7.
CHECK TARGET IDLE SPEED AGAIN
With CONSULT-II
1.
Start engine and warm it up to normal operating temperature.
2.
Read idle speed in “DATA MONITOR” mode with CONSULT-II.
Refer to
.
Without CONSULT-II
1.
Start engine and warm it up to normal operating temperature.
2.
Check idle speed. Refer to
.
OK or NG
OK
>> GO TO 10.
NG
>> 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
OK or NG
OK
>> GO TO 9.
NG
>> 1. Repair or replace.
2. GO TO 4.
9.
CHECK ECM FUNCTION
1.
Substitute another known-good ECM to check ECM function. (ECM may be the cause of an incident, but
this is a rare case.)
2.
Perform initialization of NVIS (NATS) system and registration of all NVIS (NATS) ignition key IDs. Refer to
BL-234, "NVIS (NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)"
>> GO TO 4.
650
±
50 rpm (in P or N position)
650
±
50 rpm (in P or N position)
SEF174Y
BASIC SERVICE PROCEDURE
EC-73
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Revision: 2005 August
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10.
CHECK IGNITION TIMING
1.
Run engine at idle.
2.
Check ignition timing with a timing light. Refer to
OK or NG
OK
>> GO TO 19.
NG
>> GO TO 11.
11.
PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING
1.
Stop engine.
2.
Perform
EC-89, "Accelerator Pedal Released Position Learning"
>> GO TO 12.
12.
PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Perform
EC-89, "Throttle Valve Closed Position Learning"
>> GO TO 13.
13.
PERFORM IDLE AIR VOLUME LEARNING
Refer to
EC-90, "Idle Air Volume Learning"
.
Is Idle Air Volume Learning carried out successfully?
Yes or No
Yes
>> GO TO 14.
No
>> 1. Follow the instruction of Idle Air Volume Learning.
2. GO TO 4.
15
±
5
°
BTDC (in P or N position)
PBIB1382E
EC-74
BASIC SERVICE PROCEDURE
Revision: 2005 August
2005 Murano
14.
CHECK TARGET IDLE SPEED AGAIN
With CONSULT-II
1.
Start engine and warm it up to normal operating temperature.
2.
Read idle speed in “DATA MONITOR” mode with CONSULT-II.
Refer to
.
Without CONSULT-II
1.
Start engine and warm it up to normal operating temperature.
2.
Check idle speed. Refer to
.
OK or NG
OK
>> GO TO 15.
NG
>> GO TO 17.
15.
CHECK IGNITION TIMING AGAIN
1.
Run engine at idle.
2.
Check ignition timing with a timing light. Refer to
.
OK or NG
OK
>> GO TO 19.
NG
>> GO TO 16.
16.
CHECK TIMING CHAIN INSTALLATION
Check timing chain installation. Refer to
.
OK or NG
OK
>> GO TO 17.
NG
>> 1. Repair the timing chain installation.
2. 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
OK or NG
OK
>> GO TO 18.
NG
>> 1. Repair or replace.
2. GO TO 4.
650
±
50 rpm (in P or N position)
650
±
50 rpm (in P or N position)
SEF174Y
15
±
5
°
BTDC (in P or N position)
PBIB1382E
BASIC SERVICE PROCEDURE
EC-75
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Revision: 2005 August
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18.
CHECK ECM FUNCTION
1.
Substitute another known-good ECM to check ECM function. (ECM may be the cause of an incident, but
this is a rare case.)
2.
Perform initialization of NVIS (NATS) system and registration of all NVIS (NATS) ignition key IDs. Refer to
BL-234, "NVIS (NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)"
.
>> GO TO 4.
19.
INSPECTION END
Did you replace the ECM, referring this Basic Inspection procedure?
Yes or No
Yes
>> 1. Perform
.
2. INSPECTION END
No
>> INSPECTION END
Idle Speed and Ignition Timing Check
ABS004AG
IDLE SPEED
With CONSULT-II
Check idle speed in “DATA MONITOR” mode with CONSULT-II.
With GST
Check idle speed with GST.
IGNITION TIMING
Method A
1.
Attach timing light to loop wire as shown.
SEF058Y
PBIB1374E
EC-76
BASIC SERVICE PROCEDURE
Revision: 2005 August
2005 Murano
2.
Check ignition timing.
Method B
1.
Remove No.1 ignition coil.
2.
Connect No.1 ignition coil and spark plug with suitable high-ten-
sion wire as shown, and attach timing light clamp to this wire.
PBIB1382E
BBIA0196E
BBIA0082E
SEF166Y
BASIC SERVICE PROCEDURE
EC-77
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Revision: 2005 August
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3.
Check ignition timing.
PBIB1382E
EC-78
BASIC SERVICE PROCEDURE
Revision: 2005 August
2005 Murano
Idle Mixture Ratio Adjustment
ABS004AH
PREPARATION
1.
Make sure that the following parts are in good order.
●
Battery
●
Ignition system
●
Engine oil and coolant levels
●
Fuses
●
ECM harness connector
●
Vacuum hoses
●
Air intake system
(Oil filler cap, oil level gauge, etc.)
●
Fuel pressure
●
Engine compression
●
Throttle valve
●
Evaporative emission system
2.
On air conditioner equipped models, checks should be carried out while the air conditioner is OFF.
3.
Checks should be carried out while shift lever is in N position.
4.
When measuring CO percentage, insert probe more than 40 cm (15.7 in) into tail pipe.
5.
Turn off headlamp, heater blower, rear window defogger.
6.
Keep front wheels pointed straight ahead.
BASIC SERVICE PROCEDURE
EC-79
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Revision: 2005 August
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OVERALL SEQUENCE
PBIB2086E
EC-80
BASIC SERVICE PROCEDURE
Revision: 2005 August
2005 Murano
DETAILED PROCEDURE
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.
–
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 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-II or GST.
OK or NG
OK
>> GO TO 3.
NG
>> GO TO 2.
2.
REPAIR OR REPLACE
Repair or replace components as necessary according to corresponding Diagnostic Procedure.
>> GO TO 3.
SEF983U
SEF976U
SEF977U
BASIC SERVICE PROCEDURE
EC-81
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Revision: 2005 August
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3.
CHECK TARGET IDLE SPEED
With CONSULT-II
1.
Run engine at about 2,000 rpm for about 2 minutes under no-load.
2.
Rev engine (2,000 to 3,000 rpm) 2 or 3 times under no-load,
then run engine at idle speed for about 1 minute.
3.
Read idle speed in “DATA MONITOR” mode with CONSULT-II.
Refer to
Without CONSULT-II
1.
Run engine at about 2,000 rpm for about 2 minutes under no-load.
2.
Rev engine (2,000 to 3,000 rpm) 2 or 3 times under no-load, then run engine at idle speed for about 1
minute.
3.
Check idle speed. Refer to
OK or NG
OK
>> GO TO 10.
NG
>> GO TO 4.
4.
PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING
1.
Stop engine.
2.
Perform
EC-89, "Accelerator Pedal Released Position Learning"
>> GO TO 5.
5.
PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Perform
EC-89, "Throttle Valve Closed Position Learning"
>> GO TO 6.
PBIA8513J
650
±
50 rpm (in P or N position)
SEF058Y
650
±
50 rpm (in P or N position)
EC-82
BASIC SERVICE PROCEDURE
Revision: 2005 August
2005 Murano
6.
PERFORM IDLE AIR VOLUME LEARNING
Perform
EC-90, "Idle Air Volume Learning"
Is Idle Air Volume Learning carried out successfully?
Yes or No
Yes
>> GO TO 7.
No
>> 1. Follow the instruction of Idle Air Volume Learning.
2. GO TO 4.
7.
CHECK TARGET IDLE SPEED AGAIN
With CONSULT-II
1.
Start engine and warm it up to normal operating temperature.
2.
Read idle speed in “DATA MONITOR” mode with CONSULT-II.
Refer to
.
Without CONSULT-II
1.
Start engine and warm it up to normal operating temperature.
2.
Check idle speed. Refer to
.
OK or NG
OK
>> GO TO 10.
NG
>> 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
OK or NG
OK
>> GO TO 9.
NG
>> 1. Repair or replace.
2. GO TO 4.
9.
CHECK ECM FUNCTION
1.
Substitute another known-good ECM to check ECM function. (ECM may be the cause of an incident, but
this is a rare case.)
2.
Perform initialization of NVIS (NATS) system and registration of all NVIS (NATS) ignition key IDs. Refer to
BL-236, "ECM Re-communicating Function"
>> GO TO 4.
650
±
50 rpm (in P or N position)
650
±
50 rpm (in P or N position)
SEF174Y
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