Nissan Murano Z50 (2006 year). Manual

DTC P0222, P0223 TP SENSOR

EC-347

Revision: 2006 August

2006 Murano

CHECK THROTTLE POSITION SENSOR 1 POWER SUPPLY CIRCUIT-I

Disconnect electric throttle control actuator harness connector.

Turn ignition switch ON.

Check voltage between electric throttle control actuator terminal
1 and ground with CONSULT-II or tester.

OK or NG

>> GO TO 7.

>> GO TO 3.

CHECK THROTTLE POSITION SENSOR 1 POWER SUPPLY CIRCUIT-II

Turn ignition switch OFF.

Disconnect ECM harness connector.

Check harness continuity between electric throttle control actuator terminal 1 and ECM terminal 47.
Refer to Wiring Diagram.

OK or NG

>> GO TO 4.

>> Repair open circuit.

CHECK THROTTLE POSITION SENSOR 1 POWER SUPPLY CIRCUIT-III

Check harness for short to power and short to ground, between the following terminals.

OK or NG

>> GO TO 5.

>> Repair short to ground or short to power in harness or connectors.

CHECK APP SENSOR

Refer to

EC-583, "Component Inspection"

OK or NG

>> GO TO 11.

>> GO TO 6.

PBIB3193E

Voltage: Approximately 5V

PBIB0082E

Continuity should exist.

ECM terminal

Sensor terminal

Reference Wiring Diagram

Electric throttle control actuator terminal 1

EC-345

APP sensor terminal 2

EC-579

EC-348

DTC P0222, P0223 TP SENSOR

Revision: 2006 August

2006 Murano

REPLACE ACCELERATOR PEDAL ASSEMBLY

Replace accelerator pedal assembly.

Perform

EC-75, "Accelerator Pedal Released Position Learning"

Perform

EC-76, "Throttle Valve Closed Position Learning"

Perform

EC-76, "Idle Air Volume Learning"

>> INSPECTION END

CHECK THROTTLE POSITION SENSOR 1 GROUND CIRCUIT FOR OPEN AND SHORT

Turn ignition switch OFF.

Disconnect ECM harness connector.

Check harness continuity between electric throttle control actuator terminal 5 and ECM terminal 66.
Refer to Wiring Diagram.

Also check harness for short to ground and short to power.

OK or NG

>> GO TO 8.

>> Repair open circuit or short to ground or short to power in harness or connectors.

CHECK THROTTLE POSITION SENSOR 1 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

Check harness continuity between ECM terminal 50 and electric throttle control actuator terminal 4.
Refer to Wiring Diagram.

Also check harness for short to ground and short to power.

OK or NG

>> GO TO 9.

>> Repair open circuit or short to ground or short to power in harness or connectors.

CHECK THROTTLE POSITION SENSOR

Refer to

EC-349, "Component Inspection"

OK or NG

>> GO TO 11.

>> GO TO 10.

10.

REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

Replace the electric throttle control actuator.

Perform

EC-76, "Throttle Valve Closed Position Learning"

Perform

EC-76, "Idle Air Volume Learning"

>> INSPECTION END

11.

CHECK INTERMITTENT INCIDENT

Refer to

EC-142, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

>> INSPECTION END

Continuity should exist.

DTC P0222, P0223 TP SENSOR

EC-349

Revision: 2006 August

2006 Murano

Component Inspection

NBS0033D

THROTTLE POSITION SENSOR

Reconnect all harness connectors disconnected.

Perform

EC-76, "Throttle Valve Closed Position Learning"

Turn ignition switch ON.

Set shift lever to D position.

Check voltage between ECM terminals 50 (TP sensor 1 signal),
69 (TP sensor 2signal) and ground under the following condi-
tions.

If NG, replace electric throttle control actuator and go to the next
step.

Perform

EC-76, "Throttle Valve Closed Position Learning"

Perform

EC-76, "Idle Air Volume Learning"

Removal and Installation

NBS0033E

ELECTRIC THROTTLE CONTROL ACTUATOR

Refer to

EM-18, "INTAKE MANIFOLD COLLECTOR"

Terminal

Accelerator pedal

Voltage

50
(Throttle position sensor 1)

Fully released

More than 0.36V

Fully depressed

Less than 4.75V

69
(Throttle position sensor 2)

Fully released

Less than 4.75V

Fully depressed

More than 0.36V

PBIB1392E

EC-350

DTC P0300 - P0306 MULTIPLE CYLINDER MISFIRE, NO. 1 - 6 CYLINDER MIS-

FIRE

Revision: 2006 August

2006 Murano

DTC P0300 - P0306 MULTIPLE CYLINDER MISFIRE, NO. 1 - 6 CYLINDER MIS-
FIRE

PFP:00000

On Board Diagnosis Logic

NBS0033F

When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the crank-
shaft position (CKP) sensor (POS) signal to vary, ECM can determine that a misfire is occurring.

The misfire detection logic consists of the following two conditions.

One Trip Detection Logic (Three Way Catalyst Damage)
On the first trip that a misfire condition occurs that can damage the three way catalyst (TWC) due to over-
heating, the MIL will blink.
When a misfire condition occurs, the ECM monitors the CKP sensor signal every 200 engine revolutions
for a change.
When the misfire condition decreases to a level that will not damage the TWC, the MIL will turn off.
If another misfire condition occurs that can damage the TWC on a second trip, the MIL will blink.
When the misfire condition decreases to a level that will not damage the TWC, the MIL will remain on.
If another misfire condition occurs that can damage the TWC, the MIL will begin to blink again.

Two Trip Detection Logic (Exhaust quality deterioration)
For misfire conditions that will not damage the TWC (but will affect vehicle emissions), the MIL will only
light when the misfire is detected on a second trip. During this condition, the ECM monitors the CKP sen-
sor signal every 1,000 engine revolutions.
A misfire malfunction can be detected on any one cylinder or on multiple cylinders.

DTC Confirmation Procedure

NBS0033G

CAUTION:

Always drive vehicle in safe manner according to traffic conditions and obey all traffic laws when driv-
ing.

NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.

Sensor

Input Signal to ECM

ECM function

Crankshaft position sensor (POS)

Engine speed

On board diagnosis of misfire

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0300
0300

Multiple cylinder misfire
detected

Multiple cylinder misfire.

●

Improper spark plug

●

Insufficient compression

●

Incorrect fuel pressure

●

The injector circuit is open or shorted

●

Fuel injector

●

Intake air leak

●

The ignition signal circuit is open or
shorted

●

Lack of fuel

●

Signal plate

●

Air fuel ratio (A/F) sensor 1

●

Incorrect PCV hose connection

P0301
0301

No.1 cylinder misfire
detected

No. 1 cylinder misfires.

P0302
0302

No. 2 cylinder misfire
detected

No. 2 cylinder misfires.

P0303
0303

No. 3 cylinder misfire
detected

No. 3 cylinder misfires.

P0304
0304

No. 4 cylinder misfire
detected

No. 4 cylinder misfires.

P0305
0305

No. 5 cylinder misfire
detected

No. 5 cylinder misfires.

P0306
0306

No. 6 cylinder misfire
detected

No. 6 cylinder misfires.

DTC P0300 - P0306 MULTIPLE CYLINDER MISFIRE, NO. 1 - 6 CYLINDER MIS-

FIRE

EC-351

Revision: 2006 August

2006 Murano

WITH CONSULT-II

Turn ignition switch ON and select “DATA MONITOR” mode with
CONSULT-II.

Start engine and warm it up to normal operating temperature.

Turn ignition switch OFF and wait at least 10 seconds.

Restart engine and let it idle for about 15 minutes.

If 1st trip DTC is detected, go to

EC-351, "Diagnostic Procedure"

NOTE:
If 1st trip DTC is not detected during above procedure, perform-
ing the following procedure is advised.

Turn ignition switch OFF and wait at least 10 seconds.

Start engine and drive the vehicle under the similar conditions to (1st trip) Freeze Frame Data for a certain
time. Refer to the table below.
Hold the accelerator pedal as steady as possible.

The similar conditions to (1st trip) Freeze Frame Data means the vehicle operation that the following con-
ditions should be satisfied at the same time.

The time to driving varies according to the engine speed in the freeze frame data.

WITH GST

Follow the procedure “WITH CONSULT-II” above.

Diagnostic Procedure

NBS0033H

CHECK FOR INTAKE AIR LEAK AND PCV HOSE

Start engine and run it at idle speed.

Listen for the sound of the intake air leak.

Check PCV hose connection.

OK or NG

>> GO TO 2.

>> Discover air leak location and repair.

CHECK FOR EXHAUST SYSTEM CLOGGING

Stop engine and visually check exhaust tube, three way catalyst and muffler for dents.

OK or NG

OK (With CONSULT-II)>>GO TO 3.
OK (Without CONSULT-II)>>GO TO 4.
NG

>> Repair or replace it.

PBIB0164E

Engine speed

Engine speed in the freeze frame data

400 rpm

Vehicle speed

Vehicle speed in the freeze frame data

10 km/h (6 MPH)

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).

Engine speed

Time

Around 1,000 rpm

Approximately 10 minutes

Around 2,000 rpm

Approximately 5 minutes

More than 3,000 rpm

Approximately 3.5 minutes

EC-352

DTC P0300 - P0306 MULTIPLE CYLINDER MISFIRE, NO. 1 - 6 CYLINDER MIS-

FIRE

Revision: 2006 August

2006 Murano

PERFORM POWER BALANCE TEST

With CONSULT-II

Start engine and run it at idle speed.

Perform “POWER BALANCE” in “ACTIVE TEST” mode.

Is there any cylinder which does not produce a momentary
engine speed drop?

Yes or No

Yes

>> GO TO 4.

>> GO TO 10.

CHECK FUNCTION OF FUEL INJECTOR-I

Turn ignition switch OFF.

Disconnect harness connector F29, F201.

Turn ignition switch ON.

Check voltage between harness connector F29 terminal 5 and
ground with CONSULT-II or tester.

Turn ignition switch OFF.

Disconnect ECM harness connector.

Check harness continuity between harness connector F29 ter-
minals and ECM terminals as follows.
Refer to Wiring Diagram.

Also check harness for short to ground and short to power.

OK or NG

>> GO TO 5.

>> Perform trouble diagnosis for

EC-627, "FUEL INJECTOR"

PBIB0133E

PBIB2618E

Voltage: Battery voltage

Cylinder

Harness connector F29

terminal

ECM terminal

Continuity should exist.

PBIB2323E

DTC P0300 - P0306 MULTIPLE CYLINDER MISFIRE, NO. 1 - 6 CYLINDER MIS-

FIRE

EC-353

Revision: 2006 August

2006 Murano

CHECK FUNCTION OF FUEL INJECTOR-II

Provide battery voltage between harness connector F201 as follows
and then interrupt it. Listen to each fuel injector operating sound.

OK or NG

>> GO TO 6.

>> Perform trouble diagnosis for

EC-627, "FUEL INJECTOR"

CHECK FUNCTION OF FUEL INJECTOR-III

Reconnect all harness connector disconnected.

Start engine.

Listen to fuel injectors No. 2, No. 4, No.6 operating sound.

OK or NG

>> GO TO 7.

>> Perform trouble diagnosis for

EC-627, "FUEL INJEC-

TOR"

Cylinder

Harness connector F201 terminal

(+)

(–)

Operating sound should exist.

PBIB2324E

Clicking noise should exist.

PBIB1986E

EC-354

DTC P0300 - P0306 MULTIPLE CYLINDER MISFIRE, NO. 1 - 6 CYLINDER MIS-

FIRE

Revision: 2006 August

2006 Murano

CHECK FUNCTION OF IGNITION COIL-I

CAUTION:

Do the following procedure in the place where ventilation is good without the combustible.

Turn ignition switch OFF.

Remove fuel pump fuse in IPDM E/R to release fuel pressure.

NOTE:
Do not use CONSULT-II to release fuel pressure, or fuel pres-
sure applies again during the following procedure.

Start engine.

After engine stalls, crank it two or three times to release all fuel
pressure.

Turn ignition switch OFF.

Remove all ignition coil harness connectors to avoid the electri-
cal discharge from the ignition coils.

Remove ignition coil and spark plug of the cylinder to be
checked.

Crank engine for 5 seconds or more to remove combustion gas in the cylinder.

Connect spark plug and harness connector to ignition coil.

10. Fix ignition coil using a rope etc. with gap of 13 - 17 mm

between the edge of the spark plug and grounded metal portion
as shown in the figure.

11. Crank engine for about 3 seconds, and check whether spark is

generated between the spark plug and the grounded metal por-
tion.

CAUTION:

●

Do not approach to the spark plug and the ignition coil
within 50cm. Be careful not to get an electrical shock
while checking, because the electrical discharge voltage
becomes 20kV or more.

●

It might cause to damage the ignition coil if the gap of more than 17 mm is taken.

NOTE:
When the gap is less than 13 mm, the spark might be generated even if the coil is malfunctioning.

OK or NG

>> GO TO 11.

>> GO TO 8.

CHECK FUNCTION OF IGNITION COIL-II

Turn ignition switch OFF.

Disconnect spark plug and connect a known-good spark plug.

Crank engine for about 3 seconds, and recheck whether spark is generated between the spark plug and
the grounded metal portion.

OK or NG

>> GO TO 9.

>> Check ignition coil, power transistor and their circuits. Refer to

EC-640, "IGNITION SIGNAL"

Spark should be generated.

PBIB2087E

PBIB2325E

Spark should be generated.

DTC P0300 - P0306 MULTIPLE CYLINDER MISFIRE, NO. 1 - 6 CYLINDER MIS-

FIRE

EC-355

Revision: 2006 August

2006 Murano

CHECK SPARK PLUG

Check the initial spark plug for fouling, etc.

OK or NG

>> Replace spark plug(s) with standard type one(s). For

spark plug type, refer to

EM-143, "SPARK PLUG"

>> 1. Repair or clean spark plug.

2. GO TO 10.

10.

CHECK FUNCTION OF IGNITION COIL-III

Reconnect the initial spark plugs.

Crank engine for about 3 seconds, and recheck whether spark is generated between the spark plug and
the grounded portion.

OK or NG

>> INSPECTION END

>> Replace spark plug(s) with standard type one(s). For spark plug type, refer to

EM-143, "SPARK

PLUG"

11.

CHECK COMPRESSION PRESSURE

Check compression pressure. Refer to

EM-96, "CHECKING COMPRESSION PRESSURE"

OK or NG

>> GO TO 12.

>> Check pistons, piston rings, valves, valve seats and cylinder head gaskets.

12.

CHECK FUEL PRESSURE

Install all removed parts.

Release fuel pressure to zero. Refer to

EC-78, "FUEL PRESSURE RELEASE"

Install fuel pressure gauge and check fuel pressure. Refer to

EC-78, "FUEL PRESSURE CHECK"

OK or NG

>> GO TO 14.

>> GO TO 13.

13.

DETECT MALFUNCTIONING PART

Check the following.

●

Fuel pump and circuit (Refer to

EC-634, "FUEL PUMP"

●

Fuel pressure regulator (Refer to

EC-78, "FUEL PRESSURE CHECK"

●

Fuel lines

●

Fuel filter for clogging

>> Repair or replace.

SEF156I

Spark should be generated.

At idle: Approx. 350 kPa (3.57 kg/cm

, 51 psi)

EC-356

DTC P0300 - P0306 MULTIPLE CYLINDER MISFIRE, NO. 1 - 6 CYLINDER MIS-

FIRE

Revision: 2006 August

2006 Murano

14.

CHECK IGNITION TIMING

Check the following items. Refer to

EC-68, "Basic Inspection"

OK or NG

>> GO TO 15.

>> Follow the

EC-68, "Basic Inspection"

Items

Specifications

Target idle speed

650

50 rpm (in P or N position)

Ignition timing

BTDC (in P or N position)

DTC P0300 - P0306 MULTIPLE CYLINDER MISFIRE, NO. 1 - 6 CYLINDER MIS-

FIRE

EC-357

Revision: 2006 August

2006 Murano

15.

CHECK A/F SENSOR 1 INPUT SIGNAL

Turn ignition switch OFF.

Disconnect A/F sensor 1 harness connector.

Disconnect ECM harness connector.

Check harness continuity between the following terminals.
Refer to Wiring Diagram.

Check harness continuity between the following terminals and ground.
Refer to Wiring Diagram.

Also check harness for short to power.

OK or NG

>> GO TO 16.

>> Repair open circuit or short to ground or short to power in harness or connectors.

16.

CHECK A/F SENSOR 1 HEATER

Refer to

EC-169, "Component Inspection"

OK or NG

>> GO TO 18.

>> GO TO 17.

A/F sensor 1 terminal

ECM terminal

Bank 1

Bank 2

Continuity should exist.

Bank 1

Bank 2

A/F sensor 1 terminal

ECM terminal

A/F sensor 1 terminal

ECM terminal

Continuity should not exist.

PBIB2293E

EC-358

DTC P0300 - P0306 MULTIPLE CYLINDER MISFIRE, NO. 1 - 6 CYLINDER MIS-

FIRE

Revision: 2006 August

2006 Murano

17.

REPLACE AIR FUEL RATIO (A/F) SENSOR 1

Replace air fuel ratio (A/F) sensor 1.

CAUTION:

●

Discard any air fuel ratio (A/F) sensor which has been dropped from a height of more than 0.5 m
(19.7 in) onto a hard surface such as a concrete floor; use a new one.

●

Before installing new air fuel ratio (A/F) sensor, clean exhaust system threads using Heated Oxy-
gen Sensor Thread Cleaner tool J-43897-18 or J-43897-12 and approved anti-seize lubricant.

>> INSPECTION END

18.

CHECK MASS AIR FLOW SENSOR

With CONSULT-II

Check mass air flow sensor signal in “DATA MONITOR” mode with CONSULT-II.

With GST

Check mass air flow sensor signal in Service $01 with GST.

OK or NG

>> GO TO 19.

>> Check connectors for rusted terminals or loose connections in the mass air flow sensor circuit or

ground. Refer to

EC-187, "DTC P0101 MAF SENSOR"

19.

CHECK SYMPTOM MATRIX CHART

Check items on the rough idle symptom in

EC-89, "Symptom Matrix Chart"

OK or NG

>> GO TO 20.

>> Repair or replace.

20.

ERASE THE 1ST TRIP DTC

Some tests may cause a 1st trip DTC to be set.
Erase the 1st trip DTC from the ECM memory after performing the tests. Refer to

EC-58, "HOW TO ERASE

>> GO TO 21.

21.

CHECK INTERMITTENT INCIDENT

Refer to

EC-142, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

>> INSPECTION END

2.0 - 6.0 g·m/sec:

at idling

7.0 - 20.0 g·m/sec:

at 2,500 rpm

2.0 - 6.0 g·m/sec:

at idling

7.0 - 20.0 g·m/sec:

at 2,500 rpm

DTC P0327, P0328 KS

EC-359

Revision: 2006 August

2006 Murano

DTC P0327, P0328 KS

PFP:22060

Component Description

NBS0033I

The knock sensor is attached to the cylinder block. It senses engine
knocking using a piezoelectric element. A knocking vibration from
the cylinder block is sensed as vibrational pressure. This pressure is
converted into a voltage signal and sent to the ECM.

On Board Diagnosis Logic

NBS0033J

The MIL will not light up for these diagnoses.

DTC Confirmation Procedure

NBS0033K

NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10V at idle.

WITH CONSULT-II

Turn ignition switch ON and select “DATA MONITOR” mode with
CONSULT-II.

Start engine and run it for at least 5 seconds at idle speed.

If 1st trip DTC is detected, go to

EC-361, "Diagnostic Procedure"

WITH GST

Follow the procedure “WITH CONSULT-II” above.

PBIB1359E

DTC No.

Trouble diagnosis

name

DTC detected condition

Possible cause

P0327
0327

Knock sensor circuit
low input

An excessively low voltage from the sensor is
sent to ECM.

●

Harness or connectors
(The sensor circuit is open or shorted.)

●

Knock sensor

P0328
0328

Knock sensor circuit
high input

An excessively high voltage from the sensor is
sent to ECM.

SEF058Y

DTC P0327, P0328 KS

EC-361

Revision: 2006 August

2006 Murano

Specification data are reference values and are measured between each terminal and ground.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

Diagnostic Procedure

NBS0033M

CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-I

Turn ignition switch OFF.

Disconnect ECM harness connector.

Check resistance between ECM terminal 15 and ground. Refer to Wiring Diagram.

NOTE:
It is necessary to use an ohmmeter which can measure more than 10 M

Ω

Also check harness for short to ground and short to power.

OK or NG

>> GO TO 5.

>> GO TO 2.

CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-II

Disconnect knock sensor harness connector.

Check harness continuity between ECM terminal 15 and knock
sensor terminal 1.
Refer to Wiring Diagram.

Also check harness for short to ground and short to power.

OK or NG

>> GO TO 4.

>> GO TO 3.

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors F9, F241

●

Harness for open or short between ECM and knock sensor

>> Repair open circuit or short to ground or short to power in harness or connectors.

CHECK KNOCK SENSOR

Refer to

EC-363, "Component Inspection"

OK or NG

>> GO TO 5.

>> Replace knock sensor.

TER-

MINAL

NO.

WIRE

COLOR

ITEM

CONDITION

DATA (DC Voltage)

Knock sensor

[Engine is running]

●

Idle speed

Approximately 2.5V

Resistance: Approximately 532 - 588 k

Ω

[at 20

C (68

F)]

Continuity should exist.

PBIB1359E

EC-362

DTC P0327, P0328 KS

Revision: 2006 August

2006 Murano

CHECK GROUND CONNECTIONS

Loosen and retighten two ground screws on the body.
Refer to

EC-151, "Ground Inspection"

OK or NG

>> GO TO 6.

>> Repair or replace ground connections.

CHECK KNOCK SENSOR SHIELD CIRCUIT FOR OPEN AND SHORT

Disconnect knock sensor harness connector.

Check harness continuity between knock sensor terminal 2 and ground. Refer to Wiring Diagram.

Also check for short to power.

OK or NG

>> GO TO 8.

>> GO TO 7.

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors F9, F241

●

Harness connectors F102, M82

●

Harness for open or short between knock sensor terminal 2 and ground

>> Repair open circuit or short to power in harness or connectors.

CHECK INTERMITTENT INCIDENT

Refer to

EC-142, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

>> INSPECTION END

PBIB1835E

Continuity should exist.

Nissan Murano Z50 (2006 year). Manual - part 98