Content .. 97 98 99 100 ..

Nissan Murano Z50 (2003 year). Manual - part 99

DTC P0182, P0183 FTT SENSOR

EC-303

Revision; 2004 April

2003 Murano

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors B2, M9

●

Harness for open or short between “fuel level sensor unit and fuel pump” and “unified meter and A/C
amp.”

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

CHECK FUEL TANK TEMPERATURE SENSOR

Refer to

EC-299, "Component Inspection"

OK or NG

>> GO TO 7.

>> Replace fuel level sensor unit.

CHECK INTERMITTENT INCIDENT

Refer to

EC-151, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

>> INSPECTION END

Component Inspection

ABS004FE

FUEL TANK TEMPERATURE SENSOR

Remove fuel level sensor unit.

Check resistance between “fuel level sensor unit and fuel pump”
terminals 4 and 5 by heating with hot water or heat gun as
shown in the figure.

Removal and Installation

ABS004FF

FUEL TANK TEMPERATURE SENSOR

Refer to

FL-5, "FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY"

Temperature

C (

Resistance k

Ω

20 (68)

2.3 - 2.7

50 (122)

0.79 - 0.90

PBIB0931E

EC-304

DTC P0222, P0223 TP SENSOR

Revision; 2004 April

2003 Murano

DTC P0222, P0223 TP SENSOR

PFP:16119

Component Description

ABS004V9

Electric Throttle Control Actuator consists of throttle control motor,
throttle position sensor, etc. The throttle position sensor responds to
the throttle valve movement.
The throttle position sensor has the two sensors. These sensors are
a kind of potentiometers which transform the throttle valve position
into output voltage, and emit the voltage signal to the ECM. In addi-
tion, these sensors detect the opening and closing speed of the
throttle valve and feed the voltage signals to the ECM. The ECM
judges the current opening angle of the throttle valve from these sig-
nals and the ECM controls the throttle control motor to make the
throttle valve opening angle properly in response to driving condi-
tion.

CONSULT-II Reference Value in Data Monitor Mode

ABS004VA

Specification data are reference values.

*: Throttle position sensor 2 signal is converted by ECM internally. Thus, it differs from ECM terminal voltage signal.

On Board Diagnosis Logic

ABS004VB

These self-diagnoses have the one trip detection logic.

FAIL-SAFE MODE

When the malfunction is detected, ECM enters fail-safe mode an the MIL lights up.

PBIB0145E

MONITOR ITEM

CONDITION

SPECIFICATION

THRTL SEN1
THRTL SEN2*

●

Ignition switch: ON
(Engine stopped)

●

Shift lever: D

Accelerator pedal: Fully released

More than 0.36V

Accelerator pedal: Fully depressed

Less than 4.75V

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0222
0222

Throttle position sensor
1 circuit low input

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

●

Harness or connectors
(TP sensor 1 circuit is open or shorted.)
(APP sensor 2 circuit is shorted.)

●

Electric throttle control actuator
(TP sensor 1)

●

Accelerator pedal position sensor
(APP sensor 2)

P0223
0223

Throttle position sensor
1 circuit high input

An excessively high voltage from the TP sen-
sor 1 is sent to ECM.

Engine operation condition in fail-safe mode

The ECM controls the electric throttle control actuator in regulating the throttle opening in order for the idle position to be within +10
degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal condition.
So, the acceleration will be poor.

DTC P0222, P0223 TP SENSOR

EC-305

Revision; 2004 April

2003 Murano

DTC Confirmation Procedure

ABS004VC

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”.

Select “DATA MONITOR” mode with CONSULT-II.

Start engine and let it idle for 1 second.

If DTC is detected, go to

EC-307, "Diagnostic Procedure"

WITH GST

Follow the procedure WITH CONSULT-II above.

SEF058Y

EC-306

DTC P0222, P0223 TP SENSOR

Revision; 2004 April

2003 Murano

Wiring Diagram

ABS004VD

TBWA0698E

DTC P0222, P0223 TP SENSOR

EC-307

Revision; 2004 April

2003 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

ABS004VE

RETIGHTEN GROUND SCREWS

Turn ignition switch “OFF”.

Loosen and retighten engine ground screws.

>> GO TO 2.

TER-

MINAL

NO.

WIRE

COLOR

ITEM

CONDITION

DATA (DC Voltage)

Sensors' power supply
(Throttle position sensor)

[Ignition switch ON]

Approximately 5V

Throttle position sensor 1

[Ignition switch "ON"]

●

Engine stopped

●

Shift lever: "D"

●

Accelerator pedal fully released

More than 0.36V

[Ignition switch ON]

●

Engine stopped

●

Shift lever: "D"

●

Accelerator pedal fully depressed

Less than 4.75V

Sensors' ground
(Throttle position sensor)

[Engine is running]

●

Warm-up condition

●

Idle speed

Approximately 0V

Throttle position sensor 2

[Ignition switch "ON"]

●

Engine stopped

●

Shift lever: "D"

●

Accelerator pedal fully released

Less than 4.75V

[Ignition switch ON]

●

Engine stopped

●

Shift lever: "D"

●

Accelerator pedal fully depressed

More than 0.36V

Sensors' power supply
(APP sensor 2)

[Ignition switch “ON”]

Approximately 5V

PBIB1298E

EC-308

DTC P0222, P0223 TP SENSOR

Revision; 2004 April

2003 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 or replace 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-581, "Component Inspection"

OK or NG

>> GO TO 11.

>> GO TO 6.

PBIB1355E

Voltage: Approximately 5V

PBIB0082E

Continuity should exist.

ECM terminal

Sensor terminal

Reference Wiring Diagram

Electric throttle control actuator terminal 1

EC-306

APP sensor terminal 2

EC-575

DTC P0222, P0223 TP SENSOR

EC-309

Revision; 2004 April

2003 Murano

REPLACE ACCELERATOR PEDAL ASSEMBLY

Replace accelerator pedal assembly.

Perform

EC-63, "Accelerator Pedal Released Position Learning"

Perform

EC-64, "Throttle Valve Closed Position Learning"

Perform

EC-64, "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-310, "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-64, "Throttle Valve Closed Position Learning"

Perform

EC-64, "Idle Air Volume Learning"

>> INSPECTION END

11.

CHECK INTERMITTENT INCIDENT

Refer to

EC-151, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

>> INSPECTION END

Continuity should exist.

EC-310

DTC P0222, P0223 TP SENSOR

Revision; 2004 April

2003 Murano

Component Inspection

ABS004VF

THROTTLE POSITION SENSOR

Reconnect all harness connectors disconnected.

Perform

EC-64, "Throttle Valve Closed Position Learning"

Turn ignition switch “ON”.

Set selector lever to “D” position.

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

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

Perform

EC-64, "Throttle Valve Closed Position Learning"

Perform

EC-64, "Idle Air Volume Learning"

Removal and Installation

ABS004VG

ELECTRIC THROTTLE CONTROL ACTUATOR

Refer to

EM-16, "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

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

FIRE

EC-311

Revision; 2004 April

2003 Murano

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

PFP:00000

On Board Diagnosis Logic

ABS004FO

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

ABS004FP

CAUTION:

Always drive vehicle at a safe speed.

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 injectors

●

Intake air leak

●

The ignition signal circuit is open or
shorted

●

Lack of fuel

●

Signal plate

●

Heated oxygen 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.

EC-312

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

FIRE

Revision; 2004 April

2003 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-312, "Diagnostic Procedure"

NOTE:
If 1st trip DTC is not detected during above procedure, performing
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

ABS004FQ

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

>> GO TO 3.

>> 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 (5 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

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

FIRE

EC-313

Revision; 2004 April

2003 Murano

PERFORM POWER BALANCE TEST

With CONSULT-II

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

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

Without CONSULT-II

When disconnecting each injector harness connector one at a time, is there any cylinder which does not pro-
duce a momentary engine speed drop?

Yes or No

Yes

>> GO TO 4.

>> GO TO 7.

CHECK INJECTOR

Does each injector make an operating sound at idle?

Yes or No

Yes

>> GO TO 5.

>> Check injector(s) and circuit(s). Refer to

EC-617,

"INJECTOR CIRCUIT"

PBIB0133E

PBIB1358E

MEC703B

EC-314

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

FIRE

Revision; 2004 April

2003 Murano

CHECK IGNITION SPARK

Remove ignition coil assembly from rocker cover.

Remove spark plug from ignition coil assembly

Connect a known-good spark plug to the ignition coil.

Disconnect injector harness connectors.

Place end of spark plug against a suitable ground and crank engine.

Check for spark.

OK or NG

>> GO TO 6.

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

Refer to

EC-596, "IGNITION SIGNAL"

CHECK SPARK PLUGS

Remove the spark plugs and check for fouling, etc.

OK or NG

>> GO TO 7.

>> Repair or replace spark plug(s) with standard type

one(s). For spark plug type, refer to,

MA-13, "ENGINE

MAINTENANCE"

CHECK COMPRESSION PRESSURE

Check compression pressure. Refer to

EM-84, "CHECKING COMPRESSION PRESSURE"

OK or NG

>> GO TO 8.

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

CHECK FUEL PRESSURE

Install all removed parts.

Release fuel pressure to zero. Refer to

EC-66, "FUEL PRESSURE RELEASE"

Install fuel pressure gauge and check fuel pressure. Refer to

EC-67, "FUEL PRESSURE CHECK"

OK or NG

>> GO TO 10.

>> GO TO 9.

SEF575Q

SEF156I

Standard:

1,275 kPa (13.0 kg/cm

, 185 psi)/300 rpm

Minimum:

981 kPa (10.0 kg/cm

, 142 psi)/300 rpm

Difference between each
cylinder:

98 kPa (1.0 kg/cm

, 14 psi)/300 rpm

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

, 51 psi)

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

FIRE

EC-315

Revision; 2004 April

2003 Murano

DETECT MALFUNCTIONING PART

Check the following.

●

Fuel pump and circuit (Refer to

EC-623, "FUEL PUMP CIRCUIT"

●

Fuel pressure regulator (Refer to

EC-67, "FUEL PRESSURE CHECK"

●

Fuel lines

●

Fuel filter for clogging

>> Repair or replace.

10.

CHECK IGNITION TIMING

Check the following items. Refer to

EC-99, "Basic Inspection"

OK or NG

>> GO TO 11.

>> Follow the

EC-99, "Basic Inspection"

11.

CHECK HEATED OXYGEN SENSOR 1 (BANK 1)/(BANK 2)

Refer to

EC-230, "Component Inspection"

OK or NG

>> GO TO 13.

>> GO TO 12.

12.

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 MODE 1 with GST.

OK or NG

>> GO TO 13.

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

engine grounds. Refer to

EC-183, "DTC P0101 MAF SENSOR"

13.

CHECK SYMPTOM MATRIX CHART

Check items on the rough idle symptom in

EC-103, "Symptom Matrix Chart"

OK or NG

>> GO TO 14.

>> Repair or replace.

Items

Specifications

Target idle speed

650

50 rpm (in “P” or “N” position)

Ignition timing

BTDC (in “P” or “N” position)

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

EC-316

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

FIRE

Revision; 2004 April

2003 Murano

14.

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-81, "HOW TO ERASE

>> GO TO 15.

15.

CHECK INTERMITTENT INCIDENT

Refer to

EC-151, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

>> INSPECTION END

DTC P0327, P0328 KS

EC-317

Revision; 2004 April

2003 Murano

DTC P0327, P0328 KS

PFP:22060

Component Description

ABS004FR

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

ABS004FS

The MIL will not light up for these diagnoses.

DTC Confirmation Procedure

ABS004FT

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-319, "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

EC-318

DTC P0327, P0328 KS

Revision; 2004 April

2003 Murano

Wiring Diagram

ABS004FU

TBWA0366E

Content .. 97 98 99 100 ..