Nissan Murano Z50 (2005 year). Manual — part 1
ACC-1
ACCELERATOR CONTROL SYSTEM
B ENGINE
CONTENTS
C
D
E
F
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J
K
L
M
SECTION
ACC
A
ACC
Revision: 2005 August
2005 Murano
ACCELERATOR CONTROL SYSTEM
PRECAUTIONS . . . . . . . . . . . . . . .. 2
ACCELERATOR CONTROL SYSTEM . . . . . ... 3
ACC-2
PRECAUTIONS
Revision: 2005 August
2005 Murano
PRECAUTIONS
PFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
ABS00DAE
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.
ACCELERATOR CONTROL SYSTEM
ACC-3
C
D
E
F
G
H
I
J
K
L
M
A
ACC
Revision: 2005 August
2005 Murano
ACCELERATOR CONTROL SYSTEM
PFP:18005
Removal and Installation
ABS0033R
REMOVAL
1.
Move accelerator and brake pedals to the front most position (Adjustable type).
2.
Turn ignition switch “OFF” and disconnect negative battery terminal.
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 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 (Adjustable type).
●
Do not disassemble accelerator pedal assembly. Do not remove accelerator pedal position sen-
sor from 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 accelerator pedal assembly away from water.
NOTE:
Drive cable of the adjustable type accelerator pedal assembly is a component of brake pedal. Refer to
INSTALLATION
Install in the reverse order of removal.
1.
Accelerator pedal assembly
PBIC4291E
SBIA0382E
ACC-4
ACCELERATOR CONTROL SYSTEM
Revision: 2005 August
2005 Murano
INSPECTION AFTER INSTALLATION
●
Make sure accelerator pedal moves smoothly within the whole operation range when it is fully depressed
and released.
●
Make sure 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
●
For the electrical inspection of accelerator pedal position sensor, refer to
CAUTION:
When harness connector of accelerator pedal position sensor is disconnected, perform “Acceler-
ator Pedal Released Position Learning”. Refer to
ACS-1
AUTO CRUISE CONTROL SYSTEM
K ELECTRICAL
CONTENTS
C
D
E
F
G
H
I
J
L
M
SECTION
ACS
A
B
ACS
Revision: 2005 August
2005 Murano
AUTO CRUISE CONTROL SYSTEM
ACS-2
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
Revision: 2005 August
2005 Murano
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
PFP:18930
Description
AKS007R3
Regarding the information for ASCD system, refer to
EC-28, "AUTOMATIC SPEED CONTROL DEVICE
.
AP-1
ADJUSTABLE PEDAL
I BODY
CONTENTS
C
D
E
F
G
H
J
K
L
M
SECTION
AP
A
B
AP
Revision: 2005 August
2005 Murano
ADJUSTABLE PEDAL
PRECAUTIONS . . . . . . . . . . . . . . .. 2
ADJUSTABLE PEDAL SYSTEM . . . . . . . ... 3
AP-2
PRECAUTIONS
Revision: 2005 August
2005 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-15, "How to Read Wiring Diagrams"
●
PG-3, "POWER SUPPLY ROUTING CIRCUIT"
in PG section
When you perform trouble diagnosis, refer to the following:
●
GI-11, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES"
in GI section
●
GI-27, "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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A
B
AP
Revision: 2005 August
2005 Murano
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 fusible link [Letter F, located in the fuse block (J/B)],
●
to BCM (Body control module) terminal 55.
●
through 10A fuse [No. 18, located in the fuse block (J/B)],
●
through BCM terminal 42,
●
through BCM terminal 54,
●
to pedal adjusting control unit terminal 5.
●
through 10A fuse [No. 21 (without intelligent key) or No. 22 (with intelligent key), located in the fuse block
(J/B)],
●
to key switch terminal 3.
With ignition key inserted, power is supplied
●
through key switch 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 52,
●
through body grounds E13, E28 and E26.
●
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 to OFF position or ON position and CVT selector lever is shifted to 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,
AP-4
ADJUSTABLE PEDAL SYSTEM
Revision: 2005 August
2005 Murano
●
to pedal adjusting motor terminal 1.
Then ground is supplied
●
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.
ADJUSTABLE PEDAL SYSTEM
AP-5
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B
AP
Revision: 2005 August
2005 Murano
Component Parts and Harness Connector Location
AIS0066X
PIIB3179E
AP-6
ADJUSTABLE PEDAL SYSTEM
Revision: 2005 August
2005 Murano
Wiring Diagram —PEDAL—
AIS0066Y
TIWB0200E
ADJUSTABLE PEDAL SYSTEM
AP-7
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B
AP
Revision: 2005 August
2005 Murano
TIWB0201E
AP-8
ADJUSTABLE PEDAL SYSTEM
Revision: 2005 August
2005 Murano
Terminal and Reference Value for BCM
AIS0066Z
Terminal and Reference Value for Pedal Adjusting Control Unit
AIS00670
Work Flow
AIS00671
1.
Check the symptom and customer's requests.
2.
Perform the preliminary check. Refer to
3.
According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to
"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
AIS00672
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)
42
GR
BAT power supply
Ignition switch OFF
Battery voltage
52
B
Ground
Ignition switch ON
0
54
W/R
Adjustable pedal power supply
Ignition switch OFF
Battery voltage
55
W/B
BAT power supply
Ignition switch OFF
Battery voltage
TERMINAL
WIRE
COLOR
ITEM
CONDITION
VOLTAGE (V)
(Approx)
1
B
Ground
Ignition switch turn ON
0
3
L
Detention switch (key) signal
Key switch ON
Selector lever in other than P-position
Battery voltage
Except the above
0
4
G
Ignition power supply
Ignition switch ON
Battery voltage
5
W/R
Battery power supply
Ignition switch OFF
Battery voltage
7
R
Pedal adjusting switch power supply
output
Ignition switch turn ON
Selector lever in other than P-position
0
Selector lever is shifted to P-position
Battery voltage
ADJUSTABLE PEDAL SYSTEM
AP-9
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B
AP
Revision: 2005 August
2005 Murano
Trouble Diagnosis Chart by Symptom
AIS00673
NOTE:
Always check the “Work Flow” before troubleshooting. Refer to
BCM Power Supply and Ground Circuit Inspection
AIS00674
1.
CHECK FUSE
●
Check 50A fusible link (letter F , located in the fuse and fusible link box).
●
Check 10A fuse [No. 18, located in the fuse block (J/B)],
NOTE:
Refer to
AP-5, "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
3, "POWER SUPPLY ROUTING CIRCUIT"
.
2.
CHECK BCM POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Check voltage between BCM connector M35 terminal 42 (GR),
55 (W/B) and ground.
OK or NG
OK >> GO
TO
3.
NG
>> Repair or replace harness between fuse and BCM.
Symptom
Diagnoses / service procedure
Refer to page
No adjustable pedal system operates.
1.
BCM power supply and ground circuit inspection
2.
Pedal adjusting control unit supply and ground circuit
inspection
3.
Pedal adjusting switch power supply and ground inspection
4.
Pedal adjusting motor circuit inspection
5.
Replace pedal adjusting motor
Adjustable pedal system does operate when igni-
tion switch turned ON and CVT selector lever is
other than P-position.
1.
Key switch and CVT device circuit inspection
2.
Pedal adjusting control unit ignition signal inspection
3.
Replace pedal adjusting control unit
Adjustable pedal system does not operate when
ignition switch turned ON and CVT selector lever
is other than P-position.
CVT device circuit inspection
42 (GR) - Ground
: Battery voltage
55 (W/B) - Ground
: Battery voltage
PIIB0879E
AP-10
ADJUSTABLE PEDAL SYSTEM
Revision: 2005 August
2005 Murano
3.
CHECK BCM GROUND CIRCUIT
Check continuity between BCM connector M35 terminal 52 (B) and
ground.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace the harness between BCM and
ground.
4.
CHECK BCM OUTPUT POWER SUPPLY CIRCUIT
1.
Disconnect BCM connector.
2.
Check voltage between BCM connector M35 terminal 54 (W/R)
and ground.
OK or NG
OK
>> BCM power supply and ground circuit are OK.
NG
>> Replace BCM.
Pedal Adjusting Control Unit Ignition Signal Inspection
AIS0066Q
1.
CHECK FUSE
1.
Turn ignition switch OFF.
2.
Check 10A fuse [No. 12, located in fuse block (J/B)]
NOTE:
Refer to
AP-5, "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
3, "POWER SUPPLY ROUTING CIRCUIT"
2.
CHECK PEDAL ADJUSTING CONTROL UNIT IGNITION POWER SUPPLY CIRCUIT
1.
Disconnect pedal adjusting control unit connector.
2.
Turn ignition switch ON.
3.
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).
52 (B) - Ground
: Continuity should exist.
PIIB3180E
54 (W/R) - Ground
: Battery voltage
PIIB0883E
Connector
Terminal (Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(-)
M88
4(G)
Ground
Turn ignition switch ON
Battery voltage
Turn ignition switch OFF
0
PIIA7660E
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