Content .. 95 96 97 98 ..

Nissan Murano Z50 (2007 year). Manual - part 97

DTC P1217 ENGINE OVER TEMPERATURE

EC-501

Revision: 2006 July

2007 Murano

Perform “COOLING FAN” in “ACTIVE TEST” mode with CON-
SULT-II.

If the results are NG, go to

EC-504, "Diagnostic Procedure"

WITH GST

Check the coolant level in the reservoir tank and radiator.
Allow engine to cool before checking coolant level.
If the coolant level in the reservoir tank and/or radiator is below
the proper range, skip the following steps and go to

EC-504,

"Diagnostic Procedure"

Confirm whether customer filled the coolant or not. If customer
filled the coolant, skip the following steps and go to

EC-504,

"Diagnostic Procedure"

Perform IPDM E/R auto active test and check cooling fan motors
operation, refer to

PG-21, "Auto Active Test"

If NG, go to

EC-504, "Diagnostic Procedure"

SEF646X

SEF621W

EC-502

DTC P1217 ENGINE OVER TEMPERATURE

Revision: 2006 July

2007 Murano

Wiring Diagram

NBS0038U

TBWB0811E

DTC P1217 ENGINE OVER TEMPERATURE

EC-503

Revision: 2006 July

2007 Murano

TBWB0812E

EC-504

DTC P1217 ENGINE OVER TEMPERATURE

Revision: 2006 July

2007 Murano

Diagnostic Procedure

NBS0038V

INSPECTION START

Do you have CONSULT-II?
Yes or No

Yes

>> GO TO 2.

>> GO TO 3.

CHECK COOLING FAN OPERATION

With CONSULT-II

Start engine and let it idle.

Select “COOLING FAN” in “ACTIVE TEST” mode with CON-
SULT-II.

Make sure that cooling fans-1 and -2 operate at each speed
(LOW/MID/HI).

OK or NG

>> GO TO 4.

>> Check cooling fan control circuit. (Go to

EC-505,

"COOLING FAN CONTROL CIRCUIT"

CHECK COOLING FAN OPERATION

Without CONSULT-II

Perform IPDM E/R auto active test and check cooling fan motors operation, refer to

PG-21, "Auto Active

Test"

Make sure that cooling fans-1 and -2 operate at each speed (Low/High).

OK or NG

>> GO TO 4.

>> Check cooling fan control circuit. (Go to

EC-505, "COOLING FAN CONTROL CIRCUIT"

CHECK COOLING SYSTEM FOR LEAK

Refer to

CO-9, "LEAK CHECK"

OK or NG

>> GO TO 5.

>> Check the following for leak. Refer to

CO-9, "LEAK CHECK"

●

Hose

●

Radiator

●

Water pump

CHECK RADIATOR CAP

Refer to

CO-15, "Checking Radiator Cap"

OK or NG

>> GO TO 6.

>> Replace radiator cap.

SEF784Z

DTC P1217 ENGINE OVER TEMPERATURE

EC-505

Revision: 2006 July

2007 Murano

CHECK COMPONENT PARTS

Check the following.
Thermostat. Refer to

CO-27, "WATER INLET AND THERMOSTAT ASSEMBLY"

Engine coolant temperature sensor. Refer to

EC-211, "Component Inspection"

OK or NG

>> GO TO 7.

>> Replace malfunctioning component.

CHECK MAIN 12 CAUSES

If the cause cannot be isolated, go to

EC-506, "Main 12 Causes of Overheating"

>> INSPECTION END

COOLING FAN CONTROL CIRCUIT

CHECK POWER SUPPLY CIRCUIT

Turn ignition switch OFF.

Disconnect IPDM E/R harness connector E6.

Check voltage between IPDM E/R terminals 15, 16 and ground
with CONSULT-II or tester.

OK or NG

>> GO TO 3.

>> GO TO 2.

DETECT MALFUNCTIONING PART

Check the following.

●

40A fusible links

●

Harness for open or short between IPDM E/R and battery

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

Voltage: Battery voltage

PBIB1924E

EC-506

DTC P1217 ENGINE OVER TEMPERATURE

Revision: 2006 July

2007 Murano

CHECK COOLING FAN MOTORS CIRCUIT

Disconnect cooling fan motor-1 and cooling fan motor-2 harness
connector.

Disconnect IPDM E/R harness connectors E5, E8 and E9.

Check harness continuity between the following terminals.
cooling fan motor-1 terminal 1 and IPDM E/R terminal 13,
cooling fan motor-1 terminal 2 and IPDM E/R terminal 10,
cooling fan motor-1 terminal 3 and IPDM E/R terminal 12,
cooling fan motor-1 terminal 4 and ground,
cooling fan motor-2 terminal 1 and IPDM E/R terminal 8,
cooling fan motor-2 terminal 2 and IPDM E/R terminal 11,
cooling fan motor-2 terminal 3 and IPDM E/R terminal 9,
cooling fan motor-2 terminal 4 and ground,
IPDM E/R terminal 60 and ground,
IPDM E/R terminal 38 and ground.
Refer to wiring diagram.

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

OK or NG

>> GO TO 4.

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

CHECK COOLING FAN MOTORS

Refer to

EC-507, "Component Inspection"

OK or NG

>> GO TO 5.

>> Replace cooling fan motors.

CHECK INTERMITTENT INCIDENT

Perform

EC-141, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

OK or NG

>> Replace IPDM E/R. Refer to

PG-17, "IPDM E/R (INTELLIGENT POWER DISTRIBUTION MOD-

ULE ENGINE ROOM)"

>> Repair or replace harness or connector.

Main 12 Causes of Overheating

NBS0038W

Continuity should exist.

PBIB1364E

Engine

Step

Inspection item

Equipment

Standard

Reference page

OFF

●

Blocked radiator

●

Blocked condenser

●

Blocked radiator grille

●

Blocked bumper

●

Visual

No blocking

—

●

Coolant mixture

●

Coolant tester

50 - 50% coolant mixture

MA-11

●

Coolant level

●

Visual

Coolant up to MAX level
in reservoir tank and radi-
ator filler neck

CO-9

●

Radiator cap

●

Pressure tester

59 - 98 kPa

(0.6 - 1.0 kg/cm

, 9 - 14

psi) (Limit)

CO-15

ON*

●

Coolant leaks

●

Visual

No leaks

CO-9

ON*

●

Thermostat

●

Touch the upper and
lower radiator hoses

Both hoses should be hot

CO-27

DTC P1217 ENGINE OVER TEMPERATURE

EC-507

Revision: 2006 July

2007 Murano

*1: Turn the ignition switch ON.
*2: Engine running at 3,000 rpm for 10 minutes.
*3: Drive at 90 km/h (55 MPH) for 30 minutes and then let idle for 10 minutes.
*4: After 60 minutes of cool down time.
For more information, refer to

CO-5, "OVERHEATING CAUSE ANALYSIS"

Component Inspection

NBS0038X

COOLING FAN MOTORS-1 AND -2

Disconnect cooling fan motor harness connectors.

Supply cooling fan motor terminals with battery voltage and
check operation.

Cooling fan motor should operate.
If NG, replace cooling fan motor.

ON*

●

Cooling fan

●

CONSULT-II

Operating

See trouble diagnosis for
DTC P1217 (

EC-498

OFF

●

Combustion gas leak

●

Color checker chemical
tester 4 Gas analyzer

Negative

—

ON*

●

Coolant temperature
gauge

●

Visual

Gauge less than 3/4
when driving

—

●

Coolant overflow to
reservoir tank

●

Visual

No overflow during driving
and idling

CO-9

OFF*

●

Coolant return from
reservoir tank to radia-
tor

●

Visual

Should be initial level in
reservoir tank

CO-9

OFF

●

Cylinder head

●

Straight gauge feeler
gauge

0.1 mm (0.004 in) Maxi-
mum distortion (warping)

EM-99

●

Cylinder block and pis-
tons

●

Visual

No scuffing on cylinder
walls or piston

EM-114

Engine

Step

Inspection item

Equipment

Standard

Reference page

Cooling fan speed

Cooling fan motor terminals

(+)

(

−

)

Low (LOW)

High (HI)

1 and 2

3 and 4

SEF734W

EC-508

DTC P1225 TP SENSOR

Revision: 2006 July

2007 Murano

DTC P1225 TP SENSOR

PFP:16119

Component Description

NBS0038Y

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 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 addition,
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 signals and the
ECM controls the throttle control motor to make the throttle valve
opening angle properly in response to driving condition.

On Board Diagnosis Logic

NBS0038Z

The MIL will not light up for this diagnosis.

DTC Confirmation Procedure

NBS00390

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.

Turn ignition switch OFF, wait at least 10 seconds.

Turn ignition switch ON.

If 1st trip DTC is detected, go to

EC-509, "Diagnostic Procedure"

WITH GST

Follow the procedure “WITH CONSULT-II” above.

PBIB0145E

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P1225
1225

Closed throttle position
learning performance

Closed throttle position learning value is exces-
sively low.

●

Electric throttle control actuator
(TP sensor 1 and 2)

SEF058Y

DTC P1225 TP SENSOR

EC-509

Revision: 2006 July

2007 Murano

Diagnostic Procedure

NBS00391

CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY

Turn ignition switch OFF.

Remove the intake air duct.

Check if foreign matter is caught between the throttle valve and
the housing.

OK or NG

>> GO TO 2.

>> Remove the foreign matter and clean the electric throttle

control actuator inside.

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

Removal and Installation

NBS00392

ELECTRIC THROTTLE CONTROL ACTUATOR

Refer to

EM-18, "INTAKE MANIFOLD COLLECTOR"

PBIB1379E

EC-510

DTC P1226 TP SENSOR

Revision: 2006 July

2007 Murano

DTC P1226 TP SENSOR

PFP:16119

Component Description

NBS00393

On Board Diagnosis Logic

NBS00394

The MIL will not light up for this diagnosis.

DTC Confirmation Procedure

NBS00395

WITH CONSULT-II

Turn ignition switch ON.

Select “DATA MONITOR” mode with CONSULT-II.

Turn ignition switch OFF, wait at least 10 seconds.

Turn ignition switch ON.

Repeat steps 3 and 4 for 32 times.

If 1st trip DTC is detected, go to

EC-511, "Diagnostic Procedure"

WITH GST

Follow the procedure “WITH CONSULT-II” above.

PBIB0145E

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P1226
1226

Closed throttle position
learning performance

Closed throttle position learning is not per-
formed successfully, repeatedly.

●

Electric throttle control actuator
(TP sensor 1 and 2)

SEF058Y

DTC P1226 TP SENSOR

EC-511

Revision: 2006 July

2007 Murano

Diagnostic Procedure

NBS00396

CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY

Turn ignition switch OFF.

Remove the intake air duct.

Check if foreign matter is caught between the throttle valve and
the housing.

OK or NG

>> GO TO 2.

>> Remove the foreign matter and clean the electric throttle

control actuator inside.

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

Removal and Installation

NBS00397

ELECTRIC THROTTLE CONTROL ACTUATOR

Refer to

EM-18, "INTAKE MANIFOLD COLLECTOR"

PBIB1379E

EC-512

DTC P1421 COLD START CONTROL

Revision: 2006 July

2007 Murano

DTC P1421 COLD START CONTROL

PFP:23710

Description

NBS003F7

ECM controls ignition timing and engine idle speed when engine is started with prewarming up condition.
This control promotes the activation of three way catalyst by heating the catalyst and reduces emissions.

On Board Diagnosis Logic

NBS003F8

DTC Confirmation Procedure

NBS003F9

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 DTC P1421 is displayed with other DTC, first perform the trouble diagnosis for other DTC.

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

WITH CONSULT-II

Turn ignition switch OFF and wait at least 10 seconds.

Turn ignition switch ON.

Select “DATA MONITOR” mode with CONSULT-II.

Check that the “COOLAN TEMP/S” indication is between 4

(39

F) and 36

C (97

F).

If “COOLAN TEMP/S” indication is within the specified value, go
to the following step.
If “COOLANT TEMP/S” indication is out of the specified value,
cool engine down or warm engine up and go to step 1.

Start engine and let it idle for 5 minutes.

If 1st trip DTC is detected, go to

EC-512, "Diagnostic Procedure"

WITH GST

Follow the procedure “WITH CONSULT-II” above.

Diagnostic Procedure

NBS003FA

PERFORM IDLE AIR VOLUME LEARNING

Perform

EC-76, "Idle Air Volume Learning"

Is Idle Air Volume Learning carried out successfully?
Yes or No

Yes

>> GO TO 2.

>> Follow the instruction of Idle Air Volume Learning.

CHECK INTAKE SYSTEM

Check for the cause of intake air volume lacking. Refer to the following.

●

Crushed intake air passage

●

Intake air passage clogging

OK or NG

>> GO TO 3.

>> Repair or replace malfunctioning part

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P1421
1421

Cold start emission reduction
strategy monitoring

ECM does not control ignition timing and engine
idle speed properly when engine is started with
prewarming up condition.

●

Lack of intake air volume

●

Fuel injection system

●

ECM

SEF174Y

DTC P1421 COLD START CONTROL

EC-513

Revision: 2006 July

2007 Murano

CHECK FUEL INJECTION SYSTEM FUNCTION

Perform

EC-306, "DTC Confirmation Procedure"

in DTC P0171, P0174 FUEL INJECTION SYSTEM FUNC-

TION.

OK or NG

>> GO TO 4.

>> Go to

EC-312, "Diagnostic Procedure"

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT-II

Turn ignition switch ON.

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

Touch “ERASE”.

Perform DTC Confirmation Procedure.
See

EC-512, "DTC Confirmation Procedure"

Is the 1st trip DTC P1421 displayed again?

With GST

Turn ignition switch ON.

Select Service $04 with GST.

Perform DTC Confirmation Procedure.
See

EC-512, "DTC Confirmation Procedure"

Is the 1st trip DTC P1421 displayed again?

Yes or No

Yes

>> GO TO 5.

>> INSPECTION END

REPLACE ECM

Replace ECM.

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

BL-234, "ECM Re-communicating Function"

Perform

EC-75, "VIN Registration"

Perform

EC-76, "Accelerator Pedal Released Position Learning"

Perform

EC-76, "Throttle Valve Closed Position Learning"

Perform

EC-76, "Idle Air Volume Learning"

>> INSPECTION END

EC-514

DTC P1564 ASCD STEERING SWITCH

Revision: 2006 July

2007 Murano

DTC P1564 ASCD STEERING SWITCH

PFP:25551

Component Description

NBS003B5

ASCD steering switch has variant values of electrical resistance for each button. ECM reads voltage variation
of switch, and determines which button is operated.

Refer to

EC-27, "AUTOMATIC SPEED CONTROL DEVICE (ASCD)"

for the ASCD function.

CONSULT-II Reference Value in Data Monitor Mode

NBS003B6

Specification data are reference values.

On Board Diagnosis Logic

NBS003B7

This self-diagnosis has the one trip detection logic.
The MIL will not light up for this diagnosis.

NOTE:
If DTC P1564 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605. Refer to

EC-482

PBIB3198E

MONITOR ITEM

CONDITION

SPECIFICATION

MAIN SW

●

Ignition switch: ON

MAIN switch: Pressed

MAIN switch: Released

OFF

CANCEL SW

●

Ignition switch: ON

CANCEL switch: Pressed

CANCEL switch: Released

OFF

RESUME/ACC SW

●

Ignition switch: ON

RESUME/ACCELERATE switch:
Pressed

RESUME/ACCELERATE switch:
Released

OFF

SET SW

●

Ignition switch: ON

SET/COAST switch: Pressed

SET/COAST switch: Released

OFF

DTC No.

Trouble Diagnosis

Name

DTC Detecting Condition

Possible Cause

P1564
1564

ASCD steering
switch

●

An excessively high voltage signal from the ASCD
steering switch is sent to ECM.

●

ECM detects that input signal from the ASCD
steering switch is out of the specified range.

●

ECM detects that the ASCD steering switch is
stuck ON.

●

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

●

ASCD steering switch

●

ECM

DTC P1564 ASCD STEERING SWITCH

EC-515

Revision: 2006 July

2007 Murano

DTC Confirmation Procedure

NBS003B8

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

Turn ignition switch ON.

Select “DATA MONITOR” mode with CONSULT-II.

Wait at least 10 seconds.

Press MAIN switch for at least 10 seconds, then release it and wait at least 10 seconds.

Press CANCEL switch for at least 10 seconds, then release it and wait at least 10 seconds.

Press RESUME/ACCELERATE switch for at least 10 seconds, then release it and wait at least 10 sec-
onds.

Press SET/COAST switch for at least 10 seconds, then release it and wait at least 10 seconds.

If DTC is detected, go to

EC-517, "Diagnostic Procedure"

WITH GST

Follow the procedure “WITH CONSULT-II” above.

EC-516

DTC P1564 ASCD STEERING SWITCH

Revision: 2006 July

2007 Murano

Wiring Diagram

NBS003B9

TBWB0813E

Content .. 95 96 97 98 ..