Nissan Murano Z50 (2005 year). Manual - part 102

 

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Nissan Murano Z50 (2005 year). Manual - part 102

 

 

DTC P0500 VSS

EC-387

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 WITH GST

1.

Lift up drive wheels.

2.

Start engine.

3.

Read vehicle speed sensor signal in Service $01 with GST.
The vehicle speed sensor on GST should be able to exceed 10 km/h (6 MPH) when rotating wheels with
suitable gear position.

4.

If NG, go to 

EC-387, "Diagnostic Procedure"

 .

Diagnostic Procedure

ABS004I8

1. 

CHECK DTC WITH ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

Refer to 

BRC-56, "TROUBLE DIAGNOSIS"

   (models with VDC) or 

BRC-10, "TROUBLE DIAGNOSIS"

   (mod-

els without VDC).

OK or NG

OK

>> GO TO 2.

NG

>> Repair or replace.

2. 

CHECK DTC WITH “UNIFIED METER AND A/C AMP.”

Refer to 

DI-4, "COMBINATION METERS"

 .

>> INSPECTION END

EC-388

DTC P0506 ISC SYSTEM

Revision: 2005 August

2005 Murano

DTC P0506 ISC SYSTEM

PFP:23781

Description

ABS004I9

NOTE:
If DTC P0506 is displayed with other DTC, first perform the trouble diagnosis for the other DTC.
The ECM controls the engine idle speed to a specified level through the fine adjustment of the air, which is let
into the intake manifold, by operating the electric throttle control actuator. The operating of the throttle valve is
varied to allow for optimum control of the engine idling speed. The crankshaft position sensor (POS) detects
the actual engine speed and sends a signal to the ECM.
The ECM controls the electric throttle control actuator so that the engine speed coincides with the target value
memorized in the ECM. The target engine speed is the lowest speed at which the engine can operate steadily.
The optimum value stored in the ECM is determined by taking into consideration various engine conditions,
such as during warming up, deceleration, and engine load (air conditioner, power steering and cooling fan
operation, etc.). 

On Board Diagnosis Logic

ABS004IA

DTC Confirmation Procedure

ABS004IB

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.

If the target idle speed is out of the specified value, perform 

EC-90, "Idle Air Volume Learning"

  ,

before conducting DTC Confirmation Procedure. For the target idle speed, refer to the  

EC-700,

"SERVICE DATA AND SPECIFICATIONS (SDS)"

  .

TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is more than 11V at idle.

Always perform the test at a temperature above 

10

°

C (14

°

F).

 WITH CONSULT-II

1.

Open engine hood.

2.

Start engine and warm it up to normal operating temperature.

3.

Turn ignition switch OFF and wait at least 10 seconds.

4.

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

5.

Start engine and run it for at least 1 minute at idle speed.

6.

If 1st trip DTC is detected, go to 

EC-389, "Diagnostic Procedure"

.

 WITH GST

Follow the procedure “WITH CONSULT-II” above.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0506
0506

Idle speed control sys-
tem RPM lower than 
expected

The idle speed is less than the target idle 
speed by 100 rpm or more.

Electric throttle control actuator

Intake air leak

SEF174Y

DTC P0506 ISC SYSTEM

EC-389

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Diagnostic Procedure

ABS004IC

1. 

CHECK INTAKE AIR LEAK

1.

Start engine and let it idle.

2.

Listen for an intake air leak after the mass air flow sensor.

OK or NG

OK

>> GO TO 2.

NG

>> Discover air leak location and repair.

2. 

REPLACE ECM

1.

Stop engine.

2.

Replace ECM.

3.

Perform initialization of NVIS(NATS) system and registration of all NVIS(NATS) ignition key IDs. Refer to

BL-236, "ECM Re-communicating Function"

 .

4.

Perform 

EC-89, "VIN Registration"

 .

5.

Perform 

EC-89, "Accelerator Pedal Released Position Learning"

 .

6.

Perform 

EC-89, "Throttle Valve Closed Position Learning"

 .

7.

Perform 

EC-90, "Idle Air Volume Learning"

 .

>> INSPECTION END

EC-390

DTC P0507 ISC SYSTEM

Revision: 2005 August

2005 Murano

DTC P0507 ISC SYSTEM

PFP:23781

Description

ABS004ID

NOTE:
If DTC P0507 is displayed with other DTC, first perform the trouble diagnosis for the other DTC.
The ECM controls the engine idle speed to a specified level through the fine adjustment of the air, which is let
into the intake manifold, by operating the electric throttle control actuator. The operating of the throttle valve is
varied to allow for optimum control of the engine idling speed. The crankshaft position sensor (POS) detects
the actual engine speed and sends a signal to the ECM.
The ECM controls the electric throttle control actuator so that the engine speed coincides with the target value
memorized in the ECM. The target engine speed is the lowest speed at which the engine can operate steadily.
The optimum value stored in the ECM is determined by taking into consideration various engine conditions,
such as during warming up, deceleration, and engine load (air conditioner, power steering and cooling fan
operation, etc.). 

On Board Diagnosis Logic

ABS004IE

DTC Confirmation Procedure

ABS004IF

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.

If the target idle speed is out of the specified value, perform  

EC-90, "Idle Air Volume Learning"

  ,

before conducting DTC Confirmation Procedure. For the target idle speed, refer to the 

EC-700,

"SERVICE DATA AND SPECIFICATIONS (SDS)"

 .

TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is more than 11V at idle.

Always perform the test at a temperature above 

10

°

C (14

°

F).

 WITH CONSULT-II

1.

Open engine hood.

2.

Start engine and warm it up to normal operating temperature.

3.

Turn ignition switch OFF and wait at least 10 seconds.

4.

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

5.

Start engine and run it for at least 1 minute at idle speed.

6.

If 1st trip DTC is detected, go to 

EC-391, "Diagnostic Procedure"

.

 WITH GST

Follow the procedure “WITH CONSULT-II” above.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0507
0507

Idle speed control sys-
tem RPM higher than 
expected

The idle speed is more than the target idle 
speed by 200 rpm or more.

Electric throttle control actuator

Intake air leak

PCV system

SEF174Y

DTC P0507 ISC SYSTEM

EC-391

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Diagnostic Procedure

ABS004IG

1. 

CHECK PCV HOSE CONNECTION

Confirm that PCV hose is connected correctly.
OK or NG

OK

>> GO TO 2.

NG

>> Repair or replace.

2. 

CHECK INTAKE AIR LEAK

1.

Start engine and let it idle.

2.

Listen for an intake air leak after the mass air flow sensor.

OK or NG

OK

>> GO TO 3.

NG

>> Discover air leak location and repair.

3. 

REPLACE ECM

1.

Stop engine.

2.

Replace ECM.

3.

Perform initialization of NVIS(NATS) system and registration of all NVIS(NATS) ignition key IDs. Refer to

BL-236, "ECM Re-communicating Function"

 .

4.

Perform 

EC-89, "VIN Registration"

 .

5.

Perform 

EC-89, "Accelerator Pedal Released Position Learning"

 .

6.

Perform 

EC-89, "Throttle Valve Closed Position Learning"

 .

7.

Perform 

EC-90, "Idle Air Volume Learning"

 .

>> INSPECTION END

EC-392

DTC P0550 PSP SENSOR

Revision: 2005 August

2005 Murano

DTC P0550 PSP SENSOR

PFP:49763

Component Description

ABS004IH

Power steering pressure (PSP) sensor is installed to the power
steering high-pressure tube and detects a power steering load. This
sensor is a potentiometer which transforms the power steering load
into output voltage, and emits the voltage signal to the ECM. The
ECM controls the electric throttle control actuator and adjusts the
throttle valve opening angle to increase the engine speed and
adjusts the idle speed for the increased load.

CONSULT-II Reference Value in Data Monitor Mode

ABS004II

Specification data are reference values.

On Board Diagnosis Logic

ABS004IJ

The MIL will not light up for this diagnosis.

NOTE:
If DTC P0550 is displayed with DTC P1229, first perform the trouble diagnosis for DTC P1229. Refer to

EC-478

 .

DTC Confirmation Procedure

ABS004IK

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.

 WITH CONSULT-II

1.

Turn ignition switch ON.

2.

Select “DATA MONITOR” mode with CONSULT-II.

3.

Start engine and let it idle for at least 5 seconds.

4.

If 1st trip DTC is detected, go to 

EC-394, "Diagnostic Procedure"

.

 WITH GST

Follow the procedure “WITH CONSULT-II” above.

PBIB1362E

MONITOR ITEM

CONDITION

SPECIFICATION

PW/ST SIGNAL

Engine: After warming up, idle 
the engine

Steering wheel: Not being turned

OFF

Steering wheel: Being turned

ON

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0550
0550

Power steering pres-
sure sensor circuit

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

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

Power steering pressure sensor

SEF058Y

DTC P0550 PSP SENSOR

EC-393

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Wiring Diagram

ABS004IL

TBWA0707E

EC-394

DTC P0550 PSP SENSOR

Revision: 2005 August

2005 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

ABS004IM

1. 

CHECK GROUND CONNECTIONS

1.

Turn ignition switch OFF.

2.

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

EC-166, "Ground Inspection"

 .

OK or NG

OK

>> GO TO 2.

NG

>> Repair or replace ground connections.

TER-

MINAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

12

W

Power steering pressure 
sensor

[Engine is running]

Steering wheel: Being turned

0.5 - 4.5V

[Engine is running]

Steering wheel: Not being turned

0.4 - 0.8V

67

B

Sensor ground

[Engine is running]

Warm-up condition

Idle speed

Approximately 0V

68

W/G

Sensor power supply
(PSP sensor)

[Ignition switch: ON]

Approximately 5V

PBIB1835E

DTC P0550 PSP SENSOR

EC-395

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2. 

CHECK PSP SENSOR POWER SUPPLY CIRCUIT

1.

Disconnect PSP sensor harness connector.

2.

Turn ignition switch ON.

3.

Check voltage between PSP sensor terminal 3 and ground with
CONSULT-II or tester.

OK or NG

OK

>> GO TO 3.

NG

>> Repair open circuit or short to ground or short to power

in harness or connectors.

3. 

CHECK PSP SENSOR GROUND CIRCUIT FOR OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check harness continuity between PSP sensor terminal 1 and ECM terminal 67.
Refer to Wiring Diagram.

4.

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

OK or NG

OK

>> GO TO 4.

NG

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

4. 

CHECK PSP SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1.

Check harness continuity between ECM terminal 12 and PSP sensor terminal 2.

2.

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

OK or NG

OK

>> GO TO 5.

NG

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

5. 

CHECK PSP SENSOR

Refer to 

EC-396, "Component Inspection"

 .

OK or NG

OK

>> GO TO 6.

NG

>> Replace PSP sensor.

PBIB1362E

Voltage: Approximately 5V

SEF479Y

Continuity should exist.

Continuity should exist.

EC-396

DTC P0550 PSP SENSOR

Revision: 2005 August

2005 Murano

6. 

CHECK INTERMITTENT INCIDENT

Refer to 

EC-157, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

 .

>> INSPECTION END

Component Inspection

ABS004IN

POWER STEERING PRESSURE SENSOR

1.

Reconnect all harness connectors disconnected.

2.

Start engine and let it idle.

3.

Check voltage between ECM terminal 12 and ground under the
following conditions.

Removal and Installation

ABS00H4Z

POWER STEERING PRESSURE SENSOR

Refer to 

PS-33, "HYDRAULIC LINE"

 .

Condition

Voltage

Steering wheel: Being turned

0.5 - 4.5V

Steering wheel: Not being turned

0.4 - 0.8V

MBIB0126E

DTC P0605 ECM

EC-397

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DTC P0605 ECM

PFP:23710

Component Description

ABS004IO

The ECM consists of a microcomputer and connectors for signal
input and output and for power supply. The ECM controls the engine.

On Board Diagnosis Logic

ABS004IP

This self-diagnosis has one or two trip detection logic.

FAIL-SAFE MODE

ECM enters fail-safe mode when the malfunction A is detected.

DTC Confirmation Procedure

ABS004IQ

Perform PROCEDURE FOR MALFUNCTION A first. If the 1st trip DTC cannot be confirmed, perform
PROCEDURE FOR MALFUNCTION B. If there is no malfunction on PROCEDURE FOR MALFUNCTION
B, perform PROCEDURE FOR MALFUNCTION C.

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.

PROCEDURE FOR MALFUNCTION A

 With CONSULT-II

1.

Turn ignition switch ON.

2.

Select “DATA MONITOR” mode with CONSULT-II.

3.

If 1st trip DTC is detected, go to 

EC-398, "Diagnostic Procedure"

.

 With GST

Follow the procedure “WITH CONSULT-II” above.

PBIB1164E

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0605
0605

Engine control module

A)

ECM calculation function is malfunctioning.

ECM

B)

ECM EEP-ROM system is malfunctioning.

C)

ECM self shut-off function is malfunctioning.

Detected items

Engine operation condition in fail-safe mode

Malfunction A

ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 
degrees) by the return spring.

ECM deactivates ASCD operation.

SEF058Y

EC-398

DTC P0605 ECM

Revision: 2005 August

2005 Murano

PROCEDURE FOR MALFUNCTION B

 With CONSULT-II

1.

Turn ignition switch ON and wait at least 1 second.

2.

Select “DATA MONITOR” mode with CONSULT-II.

3.

Turn ignition switch OFF, wait at least 10 seconds, and then turn
ON.

4.

If 1st trip DTC is detected, go to 

EC-398, "Diagnostic Procedure"

.

 With GST

Follow the procedure “WITH CONSULT-II” above.

PROCEDURE FOR MALFUNCTION C

 With CONSULT-II

1.

Turn ignition switch ON and wait at least 1 second.

2.

Select “DATA MONITOR” mode with CONSULT-II.

3.

Turn ignition switch OFF, wait at least 10 seconds, and then turn
ON.

4.

Repeat step 3 for 32 times.

5.

If 1st trip DTC is detected, go to 

EC-398, "Diagnostic Procedure"

.

 With GST

Follow the procedure “WITH CONSULT-II” above.

Diagnostic Procedure

ABS004IR

1. 

INSPECTION START

 With CONSULT-II

1.

Turn ignition switch ON.

2.

Select “SELF DIAG RESULTS” mode with CONSULT-II.

3.

Touch “ERASE”.

4.

Perform DTC Confirmation Procedure.
See 

EC-397

  .

5.

Is the 1st trip DTC P0605 displayed again?

 With GST

1.

Turn ignition switch ON.

2.

Select Service $04 with GST.

3.

Perform DTC Confirmation Procedure.
See 

EC-397

  .

4.

Is the 1st trip DTC P0605 displayed again?

Yes or No

Yes

>> GO TO 2.

No

>> INSPECTION END

SEF058Y

SEF058Y

DTC P0605 ECM

EC-399

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2. 

REPLACE ECM

1.

Replace ECM.

2.

Perform initialization of NVIS(NATS) system and registration of all NVIS(NATS) ignition key IDs. Refer to

BL-236, "ECM Re-communicating Function"

 .

3.

Perform 

EC-89, "VIN Registration"

 .

4.

Perform 

EC-89, "Accelerator Pedal Released Position Learning"

 .

5.

Perform 

EC-89, "Throttle Valve Closed Position Learning"

 .

6.

Perform 

EC-90, "Idle Air Volume Learning"

 .

>> INSPECTION END

EC-400

DTC P1031, P1032, P1051, P1052 A/F SENSOR 1 HEATER

Revision: 2005 August

2005 Murano

DTC P1031, P1032, P1051, P1052 A/F SENSOR 1 HEATER

PFP:22693

Description

ABS00A5X

SYSTEM DESCRIPTION

The ECM performs ON/OFF duty control of the A/F sensor 1 heater corresponding to the engine operating
condition to keep the temperature of A/F sensor 1 element at the specified range.

CONSULT-II Reference Value in Data Monitor Mode

ABS00A5Y

Specification data are reference values.

On Board Diagnosis Logic

ABS00A5Z

DTC Confirmation Procedure

ABS00A60

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 between 10.5V and 16V at
idle.

 WITH CONSULT-II

1.

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

2.

Start engine and let it idle for at least 10 seconds.

3.

If 1st trip DTC is detected, go to 

EC-405, "Diagnostic Procedure"

.

Sensor

Input Signal to ECM

ECM function

Actuator

Camshaft position sensor (PHASE)
Crankshaft position sensor (POS)

Engine speed

Air fuel ratio (A/F) sensor 1 
heater control

Air fuel ratio (A/F) sensor 1 heater

Mass air flow sensor

Amount of intake air

MONITOR ITEM

CONDITION

SPECIFICATION

A/F S1 HTR (B1)
A/F S1 HTR (B2)

Engine: After warming up, idle the engine

0 - 100%

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P1031
1031
(Bank 1)

Air fuel ratio (A/F) sensor 
1 heater control circuit 
low

The current amperage in the air fuel ratio (A/F) 
sensor 1 heater circuit is out of the normal range.
(An excessively low voltage signal is sent to ECM 
through the air fuel ratio (A/F) sensor 1 heater.)

Harness or connectors
(The A/F sensor 1 heater circuit is 
open or shorted.)

Air fuel ratio (A/F) sensor 1 heater

P1051
1051
(Bank 2)

P1032
1032
(Bank 1)

Air fuel ratio (A/F) sensor 
1 heater control circuit 
high

The current amperage in the air fuel ratio (A/F) 
sensor 1 heater circuit is out of the normal range.
(An excessively high voltage signal is sent to ECM 
through the air fuel ratio (A/F) sensor 1 heater.)

Harness or connectors
(The A/F sensor 1 heater circuit is 
shorted.)

Air fuel ratio (A/F) sensor 1 heater

P1052
1052
(Bank 2)

SEF058Y

DTC P1031, P1032, P1051, P1052 A/F SENSOR 1 HEATER

EC-401

C

D

E

F

G

H

I

J

K

L

M

A

EC

Revision: 2005 August

2005 Murano

 WITH GST

Follow the procedure “WITH CONSULT-II” above.

EC-402

DTC P1031, P1032, P1051, P1052 A/F SENSOR 1 HEATER

Revision: 2005 August

2005 Murano

Wiring Diagram

ABS00A61

BANK 1

TBWA0685E

 

 

 

 

 

 

 

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