Nissan Murano Z50 (2007 year). Manual

TROUBLE DIAGNOSIS

LAN-93

[CAN]

LAN

Revision: 2006 July

2007 Murano

CHECK UNIT REPRODUCTION

Perform the reproduction test as per the following procedure for each unit.

Turn the ignition switch OFF

Disconnect the battery cable from the negative terminal.

Disconnect all the unit connectors on CAN communication system.

NOTE:
ECM and IPDM E/R have a termination circuit. Check other units first.

Connect the battery cable to the negative terminal. Check if the symptoms described in the “Symptom
(Results from interview with customer)” are reproduced.

NOTE:
Although unit-related error symptoms occur, do not confuse them with other symptoms.

Inspection result

Reproduced>>Connect the connector. Check other units as per the above procedure.
Non-reproduced>>Replace the unit whose connector was disconnected.

PRECAUTIONS

LT-5

Revision: 2006 July

2007 Murano

PRECAUTIONS

PFP:00011

Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”

NKS001MS

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.

WARNING:

●

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

●

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

●

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.

General Precautions for Service Operations

NKS001MT

●

Never work with wet hands.

●

Xenon headlamp includes high voltage generating part. Be sure
to disconnect battery negative cable (negative terminal) or
power fuse before removing, installing, or touching the xenon
headlamp (including lamp bulb).

●

Turn the lighting switch OFF before disconnecting and connect-
ing the connector.

●

When turning the xenon headlamp on and while it is illuminated,
never touch the harness, bulb, and socket of the headlamp.

●

When checking the headlamp on/off operation, check it on vehi-
cle and with the power connected to the vehicle-side connector.

●

Do not touch the headlamp bulb glass surface with bare hands or allow oil or grease to get on it. Do not
touch the headlamp bulb just after the headlamp is turned off, because it is very hot.

●

Install the xenon headlamp bulb socket correctly. If it is installed
improperly, high-voltage leak or corona discharge may occur
that can melt the bulb, connector, and housing. Do not illuminate
the xenon headlamp bulb out of the headlamp housing. Doing
so can cause fire and harm your eyes.

●

When the bulb has burned out, wrap it in a thick vinyl bag and
discard. Do not break the bulb.

●

Leaving the bulb removed from the headlamp housing for a long
period of time can deteriorate the performance of the lens and
reflector (dirt, clouding). Always prepare a new bulb and have it
on hand when replacing the bulb.

●

When adjusting the headlamp aiming, turn the aiming adjust-
ment screw only in the tightening direction. (If it is necessary to loosen the screw, first fully loosen the
screw, and then turn it in the tightening direction.)

●

Do not use organic solvent (paint thinner or gasoline) to clean lamps and to remove old sealant.

PKIB7344E

EL-3422D

LT-6

HEADLAMP - XENON TYPE -

Revision: 2006 July

2007 Murano

HEADLAMP - XENON TYPE -

PFP:26010

Component Parts and Harness Connector Location

NKS001MV

System Description

NKS001MW

●

BCM (Body Control Module) controls headlamps low and high operation.

●

IPDM E/R (Intelligent Power Distribution Module Engine Room) operates headlamp bulbs and high beam
solenoids according to CAN communication signals from BCM.

●

Combination meter operates high beam indicator lamp according to CAN communication signals from
BCM.

OUTLINE

Power is supplied at all times

●

to ignition relay located in IPDM E/R,

●

to headlamp high relay located in IPDM E/R and

●

to headlamp low relay located in IPDM E/R, from battery direct,

●

through 50A fusible link (letter F, located in fuse and fusible link block)

●

to BCM terminal 55,

●

through 10A fuse [No. 18, located in fuse block (J/B)]

●

to BCM terminal 42,

●

through 15A fuse (No. 78, located in IPDM E/R)

●

to CPU located in IPDM E/R,

●

through 10A fuse (No. 71, located in IPDM E/R)

●

to CPU located in IPDM E/R,

●

through 10A fuse [No. 21, located in the fuse block (J/B)]

PKIB2148E

HEADLAMP - XENON TYPE -

LT-7

Revision: 2006 July

2007 Murano

●

to combination meter terminal 21.

With the ignition switch in the ON or START position, power is supplied

●

to ignition relay located in IPDM E/R, from battery direct,

●

through 10A fuse [No. 1, located in fuse block (J/B)]

●

to BCM terminal 38,

●

through 10A fuse [No. 14 located in fuse block (J/B)]

●

to combination meter terminal 20.

With the ignition switch in the ACC or ON position, power is supplied

●

through 10A fuse [No. 6, located in fuse block (J/B)]

●

to BCM terminal 11.

Ground is supplied

●

to BCM terminal 52

●

through grounds M14 and M78,

●

to IPDM E/R terminals 38 and 60

●

through grounds E13, E26 and E28,

●

to combination meter terminals 22, 23 and 24

●

through grounds M14 and M78.

LOW BEAM OPERATION

When the lighting switch is in 2ND position, BCM detects the HEAD LAMP1 and 2 (ON) by BCM combination
switch reading function. BCM sends low beam request signal (ON) through CAN communication.
When IPDM E/R receives low beam request signal (ON), it turns ON headlamp low relay in IPDM E/R. IPDM
E/R supplies power

●

through 15A fuse (No. 76, located in IPDM E/R)

●

through IPDM E/R terminal 20

●

to front combination lamp RH terminal 4,

●

through 15A fuse (No. 86, located in IPDM E/R)

●

through IPDM E/R terminal 30

●

to front combination lamp LH terminal 4.

Ground is supplied

●

to front combination lamp RH terminal 5

●

through grounds E13, E26 and E28,

●

to front combination lamp LH terminal 5

●

through grounds E13, E26 and E28.

With power and ground supplied, headlamp low beams illuminate.

HIGH BEAM OPERATION

When the lighting switch is in HIGH BEAM position and then also in 2ND position, BCM detects the HEAD
LAMP1, 2 (ON) and the HI BEAM (ON) by BCM combination switch reading function. BCM sends low beam
request signal (ON) and high beam request signal (ON) through CAN communication.
When receiving those signals, IPDM E/R turns ON headlamp low and high relays in IPDM E/R. IPDM E/R sup-
plies power

●

through 15A fuse (No. 76, located in IPDM E/R)

●

through IPDM E/R terminal 20

●

to front combination lamp RH terminal 4,

●

through 15A fuse (No. 86, located in IPDM E/R)

●

through IPDM E/R terminal 30

●

to front combination lamp LH terminal 4,

●

through 10A fuse (No. 72, located in the IPDM E/R)

●

through IPDM E/R terminal 27

●

to front combination lamp RH terminal 1,

●

through 10A fuse (No. 74, located in the IPDM E/R)

LT-8

HEADLAMP - XENON TYPE -

Revision: 2006 July

2007 Murano

●

through IPDM E/R terminal 28

●

to front combination lamp LH terminal 1.

Ground is supplied

●

to front combination lamp RH and LH terminals 5

●

through grounds E13, E26 and E28.

With power and ground supplied, headlamp high beams illuminate.
High beam solenoids move the bulb shades in the front combination lamps, and the bulb shades change to
high beam position.
Combination meter receives high beam request signal (ON) through CAN communication, and make high
beam indicator lamp turn ON in combination meter.

FLASH-TO-PASS OPERATION

When the lighting switch is in PASSING position, BCM detects the PASSING (ON) by BCM combination switch
reading function. BCM sends low beam request signal (ON) and high beam request signal (ON) through CAN
communication.
When receiving those signals, IPDM E/R turns ON headlamp low and high relays in IPDM E/R. IPDM E/R sup-
plies power

●

through 15A fuse (No. 76, located in IPDM E/R)

●

through IPDM E/R terminal 20

●

to front combination lamp RH terminal 4,

●

through 15A fuse (No. 86, located in IPDM E/R)

●

through IPDM E/R terminal 30

●

to front combination lamp LH terminal 4,

●

through 10A fuse (No. 72, located in the IPDM E/R)

●

through IPDM E/R terminal 27

●

to front combination lamp RH terminal 1,

●

through 10A fuse (No. 74, located in the IPDM E/R)

●

through IPDM E/R terminal 28

●

to front combination lamp LH terminal 1.

Ground is supplied

●

to front combination lamp RH and LH terminals 5

●

through grounds E13, E26 and E28.

With power and ground supplied, headlamp high beams illuminate.
High beam solenoids move the bulb shades in the front combination lamps to change beams from/to high and
low.
Combination meter receives high beam request signal (ON) through CAN communication, and make high
beam indicator lamp turn ON in combination meter.

COMBINATION SWITCH READING FUNCTION

Refer to

BCS-3, "COMBINATION SWITCH READING FUNCTION"

EXTERIOR LAMP BATTERY SAVER CONTROL

When the combination switch (lighting switch) is in the 2ND position (ON), and the ignition switch is turned
from ON or ACC to OFF, the battery saver control function is activated.
Under this condition, the headlamps remain illuminated for 5 minutes, and then the headlamps are turned off.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.

AUTO LIGHT OPERATION

Refer to

LT-84, "System Description"

VEHICLE SECURITY SYSTEM

The vehicle security system will flash the high beams if the system is triggered. Refer to

BL-204, "VEHICLE

SECURITY (THEFT WARNING) SYSTEM"

HEADLAMP - XENON TYPE -

LT-9

Revision: 2006 July

2007 Murano

XENON HEADLAMP

Xenon type lamps are used for to the low beam headlamps. Xenon bulbs do not use a filament. Instead, they
produce light when a high voltage current is passed between two tungsten electrodes through a mixture of
xenon (an inert gas) and certain other metal halides. In addition to strong lighting power, electronic control of
the power supply gives the headlamps stable quality and tone color.
Followings are some advantages of the xenon type headlamp.

●

The light produced by the headlamps is white color similar to sunlight that is easy to the eyes.

●

Light output is nearly double that of halogen headlamps, affording increased area of illumination.

●

Counter-reflected luminance increases and the contrast enhances on the wet road in the rain. That makes
visibility go up more than the increase of the light volume.

●

Power consumption is approximately 25 percent less than halogen headlamps, reducing battery load.

CAN Communication System Description

NKS001MX

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.

CAN Communication Unit

NKS001MY

Refer to

LAN-49, "CAN System Specification Chart"

Nissan Murano Z50 (2007 year). Manual - part 131