Nissan Murano Z50 (2003 year). Manual - part 1

 

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Nissan Murano Z50 (2003 year). Manual - part 1

 

 

ACC-2

ACCELERATOR CONTROL SYSTEM

Revision; 2004 April

2003 Murano

ACCELERATOR CONTROL SYSTEM

PFP:18005

Removal and Installation

ABS0033R

REMOVAL

1.

Move the accelerator and brake pedals to the front most position (Adjustable type).

2.

Turn “OFF” ignition switch and disconnect the negative battery cable.

3.

Disconnect accelerator pedal position sensor harness connector.

4.

Disconnect drive cable from accelerator pedal assembly (Adjustable type).

●

Unlock (1) then pull (2) to disconnect the drive cable.

5.

Loosen nuts, and remove accelerator pedal assembly.

CAUTION:

●

Before removal and installation accelerator and brake
pedals must be in front most position. This is to align the
base position of accelerator and brake pedals (Adjust-
able type).

●

Do not disassemble the accelerator pedal assembly. Do
not remove the accelerator pedal position sensor from
the accelerator pedal assembly.

●

Adjusting mechanism for accelerator pedal position is
not able to disassemble (Adjustable type).

●

Avoid impact from dropping etc. during handling.

●

Be careful to keep the accelerator pedal assembly away from water.

NOTE:
The drive cable of the adjustable type accelerator pedal assembly is a component of the brake pedal.
Refer to 

BR-6, "BRAKE PEDAL"

 .

INSTALLATION

Install in the reverse order of removal.

INSPECTION AFTER INSTALLATION

●

Make sure the accelerator pedal moves smoothly within the whole operation range when it is fully
depressed and released.

●

Make sure the accelerator pedal securely returns to the fully released position.

●

Check operation conditions in forward and rearward movement of accelerator pedal assembly (Adjustable
type). Refer to 

BR-6, "BRAKE PEDAL"

 .

1.

Accelerator pedal assembly

SBIA0370E

SBIA0382E

ACCELERATOR CONTROL SYSTEM

ACC-3

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●

For the electrical inspection of the accelerator pedal position sensor, refer to 

EC-589, "DTC P2138 APP

SENSOR"

 .

CAUTION:

When the harness connector of the accelerator pedal position sensor is disconnected, perform

″

Accelerator Pedal Released Position Learning

″

. Refer to 

EC-63, "Accelerator Pedal Released

Position Learning"

 . 

ACC-4

SERVICE DATA AND SPECIFICATIONS (SDS)

Revision; 2004 April

2003 Murano

SERVICE DATA AND SPECIFICATIONS (SDS)

PFP:00030

Tightening Torque

ABS0033S

Unit: N·m (Kg-m, ft-lb)

Accelerator pedal assembly

12.7 - 15.7 (1.3 - 1.6, 10 - 11)

ACS-1

AUTO CRUISE CONTROL SYSTEM

K  ELECTRICAL

CONTENTS

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SECTION 

ACS

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B

ACS

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AUTO CRUISE CONTROL SYSTEM

AUTOMATIC SPEED CONTROL DEVICE (ASCD) 

..... 2

Description ............................................................... 2

ACS-2

AUTOMATIC SPEED CONTROL DEVICE (ASCD)

Revision; 2004 April

2003 Murano

AUTOMATIC SPEED CONTROL DEVICE (ASCD)

PFP:18930

Description

AKS007R3

Regarding the information for ASCD system, refer to 

EC-666, "AUTOMATIC SPEED CONTROL DEVICE

(ASCD)"

 .

AP-2

PRECAUTIONS

Revision; 2004 April

2003 Murano

PRECAUTIONS

PFP:00001

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

AIS003I6

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.

Trouble Diagnosis Precaution

AIS003I8

When you read wiring diagrams, refer to the following:

●

GI-14, "How to Read Wiring Diagrams"

 in GI section

●

PG-3, "POWER SUPPLY ROUTING CIRCUIT"

 in PG section

When you perform trouble diagnosis, refer to the following:

●

GI-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES"

 in GI section

●

GI-26, "How to Perform Efficient Diagnosis for an Electrical Incident"

 in GI section

Check for any service bulletins before servicing the vehicle.

ADJUSTABLE PEDAL SYSTEM

AP-3

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ADJUSTABLE PEDAL SYSTEM

PFP:98800

Automatic Drive Positioner Interlocking Adjustable Pedal

AIS003I4

Automatic drive positioner interlocking adjustable pedal. Refer to 

SE-12, "AUTOMATIC DRIVE POSITIONER"

.

Adjustable Pedal (Only Manual Operation Model)

AIS002OE

SYSTEM DESCRIPTION

The pedal adjustable system is power supply controlled by pedal adjusting control unit.
Power is at all times supplied

●

through 50A fuse [Letter F, located in the fuse block (J/B)],

●

to BCM (Body control module) terminal 7,

●

through BCM terminal 28,

●

to pedal adjusting control unit terminal 5,

●

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

●

to Key switch and key lock solenoid terminal 3.

With ignition key inserted, power is supplied

●

through Key switch and key lock solenoid terminal 4,

●

to CVT device terminal 5.

With the ignition switch to ON position, power is supplied

●

through 10A fuse [No. 12, located in the fuse block (J/B)],

●

to pedal adjusting control unit terminal 4.

Ground is supplied

●

to BCM terminal 8,

●

through body grounds E13, E26 and E28,

●

to pedal adjusting control unit terminal 1,

●

through body grounds M14 and M78.

When the ignition key inserted and CVT selector lever is shifted to a position other than P-position, power is
supplied

●

through CVT device terminal 6,

●

to pedal adjusting terminal 3.

Then pedal adjusting control unit recognizes that CVT selector lever is shifted to a position other than P-posi-
tion.
When ignition switch is OFF, or when ignition switch is ON and CVT selector lever is in P-position, power is
supplied

●

through pedal adjusting control unit terminal 7,

●

to pedal adjusting switch terminal 64.

With power supplied, pedal adjusting switch is energized.
When pedal adjusting switch forward, power is supplied

●

through pedal adjusting switch terminal 30,

●

to pedal adjusting motor terminal 2.

Then ground is supplied

●

to pedal adjusting motor terminal 1,

●

through pedal adjusting switch terminal 15,

●

through pedal adjusting switch terminal 48C,

●

through body grounds B20 and B7.

With power and ground are supplied, accelerator and brake pedal moves forward.
When pedal adjusting switch backward, power is supplied

●

through pedal adjusting switch terminal 15,

●

to pedal adjusting motor terminal 1.

Then ground is supplied

AP-4

ADJUSTABLE PEDAL SYSTEM

Revision; 2004 April

2003 Murano

●

to pedal adjusting motor terminal 2,

●

through pedal adjusting switch terminal 30,

●

through pedal adjusting switch terminal 48C,

●

through body grounds B20 and B7.

With power and ground are supplied, accelerator and brake pedal moves backward.

COMPONENT PARTS AND HARNESS CONNECTOR LOCATION

PIIA4811E

ADJUSTABLE PEDAL SYSTEM

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WIRING DIAGRAM –PEDAL–

TIWA0326E

AP-6

ADJUSTABLE PEDAL SYSTEM

Revision; 2004 April

2003 Murano

TIWA0327E

ADJUSTABLE PEDAL SYSTEM

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TERMINAL AND REFERENCE VALUE FOR BCM

TERMINAL AND REFERENCE VALUE FOR PEDAL ADJUSTING CONTROL UNIT

WORK FLOW

1.

Check the symptom and customer's requests.

2.

Perform the preliminary check. Refer to 

AP-7, "PRELIMINARY CHECK"

 .

3.

According to the trouble diagnosis chart, repair or replace the cause of the malfunction.
Refer to 

AP-8, "TROUBLE DIAGNOSIS CHART BY SYMPTOM"

 .

4.

Does adjustable pedal system operate normally?
YES: GO TO 5.
NO: GO TO 3.

5.

INSPECTION END

PRELIMINARY CHECK

1. 

CHECK ADJUSTABLE PEDAL MECHANISM

Check the following.

●

Movable part of accelerator pedal or brake pedal is deformed, or there is foreign material in it.

●

Accelerator pedal or brake pedal is deformed or broken.

OK or NG

OK

>> Preliminary check is OK.

NG

>> Repair the malfunctioning part and check again.

Terminal 

Wire

color

Item

Condition

Voltage [V]

(Approx.)

7

W/B

BAT power supply

Ignition switch is OFF.

Battery voltage

8

B

Ground

Ignition switch is ON.

0

28

W/R

Adjustable pedal power supply

Ignition switch is OFF.

Battery voltage

Terminal

Wire

color

Item

Condition

Voltage [V]

(Approx.)

1

B

Ground

Ignition switch is ON.

0

3

L

Detention switch (key) signal

Key is inserted in ignition key cylinder and 
selector lever is in other than P-position.

Battery voltage

Except the above

0

4

G

Ignition power supply

Ignition switch is ON or START.

Battery voltage

5

W/R

Battery power supply

Ignition switch is OFF.

Battery voltage

7

R

Pedal adjusting switch power supply output

Selector lever is in other than P-position.

0

Selector lever is in P-position.

Battery voltage

AP-8

ADJUSTABLE PEDAL SYSTEM

Revision; 2004 April

2003 Murano

TROUBLE DIAGNOSIS CHART BY SYMPTOM

NOTE:
Always check the “Work Flow” before troubleshooting. Refer to 

AP-7, "WORK FLOW"

 .

BCM POWER SUPPLY AND GROUND CIRCUIT INSPECTION

1. 

CHECK BCM OUTPUT POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Check voltage between BCM connector M35 terminal 28 (W/R)
and ground.

OK or NG

OK 

>>  BCM power supply and ground is OK.

NG

>> GO TO 2.

2. 

CHECK FUSE

Check 50A fusible link (letter F  located in the fuse and fusible link box).

NOTE:
Refer to 

AP-4, "COMPONENT PARTS AND HARNESS CONNECTOR LOCATION"

 .

OK or NG

OK

>> GO TO 3.

NG

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to 

PG-

3, "POWER SUPPLY ROUTING CIRCUIT"

3. 

CHECK BCM POWER SUPPLY CIRCUIT

1.

Disconnect BCM connector.

2.

Check voltage between BCM connector E118 terminal 7 (W/B)
and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace the harness between BCM and fusible

link.

Symptom

Diagnoses / service procedure

Reference

page

No adjustable pedal system operates.

1. BCM power supply and ground circuit inspection

AP-8

2. Pedal adjusting control unit power supply and ground cir-
cuit inspection

AP-10

3. Pedal adjusting switch power supply and ground inspection

AP-14

4. Pedal adjusting motor circuit inspection

AP-15

5. Replace pedal adjusting motor

AP-4

Adjustable pedal system operate when ignition switch 
is ON and CVT selector lever is not in P-position.

1. Key switch and CVT device circuit inspection

AP-11

2. Pedal adjusting control unit ignition signal inspection

AP-9

3. Replace pedal adjusting control unit

AP-4

Adjustable pedal system does not operate when igni-
tion switch is ON and CVT selector lever is P-position.

CVT device circuit inspection

AP-16

28 (W/R) - Ground

: Battery voltage

PIIA7659E

7(W/B) - Ground

: Battery voltage

PIIA7658E

ADJUSTABLE PEDAL SYSTEM

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4. 

CHECK BCM GROUND CIRCUIT

Check continuity between BCM connector E118 terminal 8 (B) and
ground.

OK or NG

OK

>> Replace BCM.

NG

>> Repair or replace the harness between BCM and

ground.

PEDAL ADJUSTING CONTROL UNIT IGNITION SIGNAL INSPECTION

1. 

CHECK FUSE

●

Check 10A fuse [No.12, located in fuse block (J/B)]

NOTE:
Refer to 

AP-4, "COMPONENT PARTS AND HARNESS CONNECTOR LOCATION"

 .

OK or NG

OK

>> GO TO 2.

NG

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to 

PG-

3, "POWER SUPPLY ROUTING CIRCUIT"

 .

2. 

CHECK PEDAL ADJUSTING CONTROL UNIT IGNITION POWER SUPPLY CIRCUIT INSPECTION

Check voltage between pedal adjusting control unit connector and
ground.

OK or NG

OK

>> Pedal adjusting control unit ignition signal is OK.

NG

>> Repair or replace the harness between pedal adjusting

control unit and fuse block (J/B).

8 (B) - Ground

: Continuity should exist.

PIIA1127E

Connector

Terminal (Wire color)

Condition

Voltage (V) 

(Approx.)

(+)

(-)

M88

4(G)

Ground

Turn ignition switch ON

Battery voltage

Turn ignition switch OFF

0

PIIA7660E

AP-10

ADJUSTABLE PEDAL SYSTEM

Revision; 2004 April

2003 Murano

PEDAL ADJUSTING CONTROL UNIT POWER SUPPLY AND GROUND INSPECTION

1. 

CHECK PEDAL ADJUSTING CONTROL UNIT OUTPUT POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Check voltage between pedal adjusting control unit connector
M88 terminal 7 (R) and ground.

OK or NG

OK

>> Pedal adjusting control unit power supply and ground is

OK.

NG

>> GO TO 2.

2. 

CHECK PEDAL ADJUSTING CONTROL UNIT POWER SUPPLY CIRCUIT

1.

Disconnect pedal adjusting control unit connector.

2.

Check voltage between pedal adjusting control unit connector
M88 terminal 5 (W/R) and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace the harness between pedal adjusting

control unit and BCM.

3. 

CHECK PEDAL ADJUSTING CONTROL UNIT GROUND CIRCUIT INSPECTION

Check continuity pedal adjusting control unit connector M88 terminal
1 (B) and ground.

OK or NG

OK 

>> Replace pedal adjusting control unit.

NG

>> Repair or replace the harness between pedal adjusting

control unit and ground.

7 (R) - Ground

: Battery voltage

PIIA7661E

5 (W/R) - Ground

: Battery voltage

PIIA7662E

1 (B) - Ground

: Continuity should exist.

PIIA7663E

 

 

 

 

 

 

 

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