Nissan Murano Z51 (2008 year). Manual — part 278
PCS
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PCS-19
< ECU DIAGNOSIS >
[IPDM E/R]
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ECU DIAGNOSIS
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE
ROOM)
Reference Value
INFOID:0000000003420444
VALUES ON THE DIAGNOSIS TOOL
Monitor Item
Condition
Value/Status
MOTOR FAN REQ
Engine idle speed
Changes depending on engine
coolant temperature, air conditioner
operation status, vehicle speed,
etc.
1/2/3/4
AC COMP REQ
Engine running
A/C switch OFF
Off
A/C switch ON
(Compressor is operating)
On
TAIL&CLR REQ
Lighting switch OFF
Off
Lighting switch 1ST, 2ND, HI or AUTO (Light is illuminated)
On
HL LO REQ
Lighting switch OFF
Off
Lighting switch 2ND HI or AUTO (Light is illuminated)
On
HL HI REQ
Lighting switch OFF
Off
Lighting switch HI
On
FR FOG REQ
Lighting switch 2ND or
AUTO (Light is illuminated)
Front fog lamp switch OFF
Off
• Front fog lamp switch ON
• Daytime running light activated
(Only for Canada)
On
FR WIP REQ
Ignition switch ON
Front wiper switch OFF
Stop
Front wiper switch INT
1LOW
Front wiper switch LO
Low
Front wiper switch HI
Hi
WIP AUTO STOP
Ignition switch ON
Front wiper stop position
STOP P
Any position other than front wiper
stop position
ACT P
WIP PROT
Ignition switch ON
Front wiper operates normally
Off
Front wiper stops at fail-safe opera-
tion
BLOCK
IGN RLY1 -REQ
Ignition switch OFF or ACC
Off
Ignition switch ON
On
IGN RLY
Ignition switch OFF or ACC
Off
Ignition switch ON
On
PUSH SW
Release the push-button ignition switch
Off
Press the push-button ignition switch
On
INTER/NP SW
Ignition switch ON
Selector lever in any position other
than P or N
Off
Selector lever in P or N position
On
ST RLY CONT
Ignition switch ON
Off
At engine cranking
On
IHBT RLY -REQ
Ignition switch ON
Off
At engine cranking
On
Revision: 2008 October
2009 Murano
PCS-20
< ECU DIAGNOSIS >
[IPDM E/R]
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
ST/INHI RLY
Ignition switch ON
Off
At engine cranking
INHI ON
→
ST ON
The status of starter relay or starter control relay cannot be recognized by
the battery voltage malfunction, etc. when the starter relay is ON and the
starter control relay is OFF
UNKWN
DETENT SW
Ignition switch ON
• Press the selector button with se-
lector lever in P position
• Selector lever in any position oth-
er than P
Off
Release the selector button with selector lever in P position
On
S/L RLY -REQ
None of the conditions below are present
Off
• Open the driver door after the ignition switch is turned OFF (for a few
seconds)
• Press the push-button ignition switch when the steering lock is activat-
ed
On
S/L STATE
Steering lock is activated
LOCK
Steering lock is deactivated
UNLOCK
[DTC: B210A] is detected
UNKWN
DTRL REQ
NOTE:
The item is indicated, but not monitored.
Off
OIL P SW
Ignition switch OFF, ACC or engine running
Open
Ignition switch ON
Close
HOOD SW
NOTE:
The item is indicated, but not monitored.
Off
HL WASHER REQ
NOTE:
The item is indicated, but not monitored.
Off
THFT HRN REQ
Not operating
Off
• Panic alarm is activated
• Horn is activated with VEHICLE SECURITY (THEFT WARNING) SYS-
TEM
On
HORN CHIRP
Not operating
Off
• Door locking with Intelligent Key (horn chirp mode)
• Door locking with key fob (horn chirp mode)
On
CRNRNG LMP REQ
NOTE:
The item is indicated, but not monitored.
Off
Monitor Item
Condition
Value/Status
Revision: 2008 October
2009 Murano
PCS
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PCS-21
< ECU DIAGNOSIS >
[IPDM E/R]
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TERMINAL LAYOUT
PHYSICAL VALUES
JPMIA0863ZZ
Terminal No.
(Wire color)
Description
Condition
Value
(Approx.)
Signal name
Input/
Output
+
−
1
(R)
Ground
Battery power supply
Input
Ignition switch OFF
Battery voltage
2
(L)
Ground
Battery power supply
Input
Ignition switch OFF
Battery voltage
4
(LG)
Ground
Front wiper LO
Output
Ignition
switch ON
Front wiper switch OFF
0 V
Front wiper switch LO
Battery voltage
5
(Y)
Ground
Front wiper HI
Output
Ignition
switch ON
Front wiper switch OFF
0 V
Front wiper switch HI
Battery voltage
7
(GR)
Ground
Tail, license plate lamps &
illuminations
Output
Ignition
switch ON
Lighting switch OFF
0 V
Lighting switch 1ST
Battery voltage
10
(BR)
Ground
ECM relay power supply
Output
Ignition switch OFF
(More than a few seconds after turning
ignition switch OFF)
0 V
• Ignition switch ON
• Ignition switch OFF
(For a few seconds after turning igni-
tion switch OFF)
Battery voltage
Revision: 2008 October
2009 Murano
PCS-22
< ECU DIAGNOSIS >
[IPDM E/R]
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
11
(P)
Ground
Steering lock unit power
supply
Output
Ignition
switch
OFF
A few seconds after open-
ing the driver door
Battery voltage
Ignition
switch
LOCK
Press the push-button ig-
nition switch
Battery voltage
Ignition switch ACC or ON
0 V
12
(B)
Ground
Ground
—
Ignition switch ON
0 V
13
(SB)
Ground
Fuel pump power supply
Output
Approximately 1 second or more after
turning the ignition switch ON
0 V
• Approximately 1 second after turning
the ignition switch ON
• Engine running
Battery voltage
15
(W)
Ground
Ignition relay power supply
Output
Ignition switch OFF
0 V
Ignition switch ON
Battery voltage
16
(L/Y)
Ground
Front wiper auto stop
Input
Ignition
switch ON
Front wiper stop position
0 V
Any position other than
front wiper stop position
Battery voltage
19
(Y)
Ground
Ignition relay power supply
Output
Ignition switch OFF
0 V
Ignition switch ON
Battery voltage
20
(L)
Ground
Ambient sensor ground
Output
Ignition switch ON
0 V
21
(O)
Ground
Ambient sensor
Input
Ignition switch ON
NOTE:
Changes depending to ambient tem-
perature
22
(SB)
Ground
Refrigerant pressure sen-
sor ground
Output
Engine
running
• Warm-up condition
• Idle speed
0 V
23
(GR)
Ground
Refrigerant pressure sen-
sor
Output
Engine
running
• Warm-up condition
• Both A/C switch and
blower fan motor switch
ON
(Compressor operates)
1.0 - 4.0 V
24
(G)
Ground
Refrigerant pressure sen-
sor power supply
Input
Ignition switch OFF
0 V
Ignition switch ON
5.0 V
25
(GR)
Ground
Ignition relay power supply
Output
Ignition switch OFF
0 V
Ignition switch ON
Battery voltage
26*
(Y)
Ground
Ignition relay power supply
Output
Ignition switch OFF
0 V
Ignition switch ON
Battery voltage
27
(W)
Ground
Ignition relay monitor
Input
Ignition switch OFF or ACC
Battery voltage
Ignition switch ON
0 V
28
(SB)
Ground
Push-button ignition
switch
Input
Press the push-button ignition switch
0 V
Release the push-button ignition switch
Battery voltage
Terminal No.
(Wire color)
Description
Condition
Value
(Approx.)
Signal name
Input/
Output
+
−
JSNIA0014GB
Revision: 2008 October
2009 Murano
PCS
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PCS-23
< ECU DIAGNOSIS >
[IPDM E/R]
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B
A
O
P
N
30
(BR)
Ground
Starter relay control
Input
Ignition
switch ON
Selector lever in any posi-
tion other than P or N
0 V
Selector lever P or N
Battery voltage
32
(V)
Ground
Steering lock unit condi-
tion-1
Input
Steering lock is activated
0 V
Steering lock is deactivated
Battery voltage
33
(G)
Ground
Steering lock unit condi-
tion-2
Input
Steering lock is activated
Battery voltage
Steering lock is deactivated
0 V
34
(O)
Ground
Cooling fan relay-3 control
Input
Cooling fan stopped
Battery voltage
Cooling fan at HI operation
0 V
35
(P)
Ground
Cooling fan relay-1 power
supply
Input
Cooling fan stopped
Battery voltage
Cooling fan at LO operation
6.0 V
36
(G)
Ground
Battery power supply
Input
Ignition switch OFF
Battery voltage
38
(GR)
Ground
Cooling fan relay-1 power
supply
Output
Cooling fan not operating
0 V
Cooling fan at LO operation
6.0 V
39
(P)
—
CAN-L
Input/
Output
—
—
40
(L)
—
CAN-H
Input/
Output
—
—
41
(B)
Ground
Ground
—
Ignition switch ON
0 V
42
(SB)
Ground
Cooling fan relay-2 control
Input
Cooling fan stopped
Battery voltage
• Cooling fan MID operating
• Cooling fan HI operating
0 V
43
(Y)
Ground
Control device
(Detention switch)
Input
Ignition
switch ON
Press the selector button
(selector lever P)
Battery voltage
• Selector lever in any po-
sition other than P
• Release the selector
button (selector lever P)
0 V
44
(W)
Ground
Horn relay control
Input
The horn is deactivated
Battery voltage
The horn is activated
0 V
45
(O)
Ground
Horn switch
Input
The horn is deactivated
Battery voltage
The horn is activated
0 V
46
(BR)
Ground
Starter relay control
Input
Ignition
switch ON
Selector lever in any posi-
tion other than P or N
0 V
Selector lever P or N
Battery voltage
48
(W)
Ground
A/C relay power supply
Output
Engine
running
A/C switch OFF
0 V
A/C switch ON
(A/C compressor is oper-
ating)
Battery voltage
49
(R/B)
Ground
ECM relay power supply
Output
Ignition switch OFF
(More than a few seconds after turning
ignition switch OFF)
0 V
• Ignition switch ON
• Ignition switch OFF
(For a few seconds after turning igni-
tion switch OFF)
Battery voltage
Terminal No.
(Wire color)
Description
Condition
Value
(Approx.)
Signal name
Input/
Output
+
−
Revision: 2008 October
2009 Murano
PCS-24
< ECU DIAGNOSIS >
[IPDM E/R]
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
51
(LG)
Ground
Ignition relay power supply
Output
Ignition switch OFF
0 V
Ignition switch ON
Battery voltage
52
(Y/G)
Ground
Ignition relay power supply
Output
Ignition switch OFF
0 V
Ignition switch ON
Battery voltage
53
(R/W)
Ground
ECM relay power supply
Output
Ignition switch OFF
(More than a few seconds after turning
ignition switch OFF)
0 V
• Ignition switch ON
• Ignition switch OFF
(For a few seconds after turning igni-
tion switch OFF)
Battery voltage
54
(G/W)
Ground
Throttle control motor re-
lay power supply
Output
Ignition switch OFF
(More than a few seconds after turning
ignition switch OFF)
0 V
• Ignition switch ON
• Ignition switch OFF
(For a few seconds after turning igni-
tion switch OFF)
Battery voltage
55
(W/L)
Ground
ECM power supply
Output
Ignition switch OFF
Battery voltage
56
(R/Y)
Ground
Ignition relay power supply
Output
Ignition switch OFF
0 V
Ignition switch ON
Battery voltage
57
(O)
Ground
Ignition relay power supply
Output
Ignition switch OFF
0 V
Ignition switch ON
Battery voltage
58
(Y)
Ground
Ignition relay power supply
Output
Ignition switch OFF
0 V
Ignition switch ON
Battery voltage
69
(W/B)
Ground
ECM relay control
Output
Ignition switch OFF
(More than a few seconds after turning
ignition switch OFF)
Battery voltage
• Ignition switch ON
• Ignition switch OFF
(For a few seconds after turning igni-
tion switch OFF)
0 - 1.5 V
70
(O)
Ground
Throttle control motor re-
lay control
Output
Ignition switch ON
→
OFF
0 -1.0 V
↓
Battery voltage
↓
0 V
Ignition switch ON
0 - 1.0 V
72
(R/B)
Ground
Starter relay control
Input
Ignition
switch ON
Selector lever in any posi-
tion other than P or N
0 V
Selector lever P or N
Battery voltage
75
(LG)
Ground
Oil pressure switch
Input
Ignition
switch ON
Engine stopped
0 V
Engine running
Battery voltage
Terminal No.
(Wire color)
Description
Condition
Value
(Approx.)
Signal name
Input/
Output
+
−
Revision: 2008 October
2009 Murano
PCS
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PCS-25
< ECU DIAGNOSIS >
[IPDM E/R]
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B
A
O
P
N
76
(SB)
Ground
Power generation com-
mand signal
Output
Ignition switch ON
6.3 V
40% is set on “ACTIVE TEST”, “AL-
TERNATOR DUTY” of “ENGINE”
3.8 V
80% is set on “ACTIVE TEST”, “AL-
TERNATOR DUTY” of “ENGINE”
1.4 V
77
(GR)
Ground
Fuel pump relay control
Output
• Approximately 1 second after turning
the ignition switch ON
• Engine running
0 - 1.5 V
Approximately 1 second or more after
turning the ignition switch ON
Battery voltage
80
(B)
Ground
Starter motor
Output
At engine cranking
Battery voltage
83
(Y)
Ground
Headlamp LO (RH)
Output
Ignition
switch ON
Lighting switch OFF
0 V
Lighting switch 2ND
Battery voltage
84
(L)
Ground
Headlamp LO (LH)
Output
Ignition
switch ON
Lighting switch OFF
0 V
Lighting switch 2ND
Battery voltage
86
(SB)
Ground
Front fog lamp (RH)
Output
Lighting
switch
2ND
Front fog lamp switch OFF
0 V
• Front fog lamp switch
ON
• Daytime running light
activated (Only for Can-
ada)
Battery voltage
87
(GR)
Ground
Front fog lamp (LH)
Output
Lighting
switch
2ND
Front fog lamp switch OFF
0 V
• Front fog lamp switch
ON
• Daytime running light
activated (Only for Can-
ada)
Battery voltage
88
(W)
Ground
Washer pump power sup-
ply
Output
Ignition switch ON
Battery voltage
Terminal No.
(Wire color)
Description
Condition
Value
(Approx.)
Signal name
Input/
Output
+
−
JPMIA0001GB
JPMIA0002GB
JPMIA0003GB
Revision: 2008 October
2009 Murano
PCS-26
< ECU DIAGNOSIS >
[IPDM E/R]
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
*: AWD models only
89
(L)
Ground
Headlamp HI (RH)
Output
Ignition
switch ON
Lighting switch OFF
0 V
• Lighting switch HI
• Lighting switch PASS
Battery voltage
90
(G)
Ground
Headlamp HI (LH)
Output
Ignition
switch ON
Lighting switch OFF
0 V
• Lighting switch HI
• Lighting switch PASS
Battery voltage
91
(R)
Ground
Parking lamp (RH)
Output
Ignition
switch ON
Lighting switch OFF
0 V
Lighting switch 1ST
Battery voltage
92
(LG)
Ground
Parking lamp (LH)
Output
Ignition
switch ON
Lighting switch OFF
0 V
Lighting switch 1ST
Battery voltage
93
(R)
Ground
Headlamp aiming motor
(RH)
Output
Ignition
switch ON
Lighting switch OFF
0 V
Lighting switch 1ST
Battery voltage
94
(L)
Ground
Headlamp aiming motor
(LH)
Output
Ignition
switch ON
Lighting switch OFF
0 V
Lighting switch 1ST
Battery voltage
99
(BR)
Ground
Ambient sensor ground
Input
Ignition switch ON
0 V
100
(SB)
Ground
Ambient sensor
Output
Ignition switch ON
NOTE:
Changes depending to ambient tem-
perature
101
(L)
Ground
Refrigerant pressure sen-
sor ground
Input
Engine
running
• Warm-up condition
• Idle speed
0 V
102
(B)
Ground
Refrigerant pressure sen-
sor
Input
Engine
running
• Warm-up condition
• Both A/C switch and
blower fan motor switch
ON
(Compressor operates)
1.0 - 4.0 V
103
(P)
Ground
Refrigerant pressure sen-
sor power supply
Output
Ignition switch OFF
0 V
Ignition switch ON
5.0 V
Terminal No.
(Wire color)
Description
Condition
Value
(Approx.)
Signal name
Input/
Output
+
−
JSNIA0014GB
Revision: 2008 October
2009 Murano
PCS
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PCS-27
< ECU DIAGNOSIS >
[IPDM E/R]
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Wiring Diagram - IPDM E/R -
INFOID:0000000003420445
JCMWM3172GB
Revision: 2008 October
2009 Murano
PCS-28
< ECU DIAGNOSIS >
[IPDM E/R]
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
JCMWM3173GB
Revision: 2008 October
2009 Murano
PCS
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PCS-29
< ECU DIAGNOSIS >
[IPDM E/R]
C
D
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B
A
O
P
N
JCMWM3174GB
Revision: 2008 October
2009 Murano
PCS-30
< ECU DIAGNOSIS >
[IPDM E/R]
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Fail-safe
INFOID:0000000003420446
CAN COMMUNICATION CONTROL
When CAN communication with ECM and BCM is impossible, IPDM E/R performs fail-safe control. After CAN
communication recovers normally, it also returns to normal control.
If No CAN Communication Is Available With ECM
JCMWM3175GB
Revision: 2008 October
2009 Murano
PCS
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PCS-31
< ECU DIAGNOSIS >
[IPDM E/R]
C
D
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F
G
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B
A
O
P
N
If No CAN Communication Is Available With BCM
IGNITION RELAY MALFUNCTION DETECTION FUNCTION
• IPDM E/R monitors the voltage at the contact circuit and excitation coil circuit of the ignition relay inside it.
• IPDM E/R judges the ignition relay error if the voltage differs between the contact circuit and the excitation
coil circuit.
• If the ignition relay cannot turn OFF due to contact seizure, it activates the tail lamp relay for 10 minutes to
alert the user to the ignition relay malfunction when the ignition switch is turned OFF.
FRONT WIPER CONTROL
IPDM E/R detects front wiper stop position by a front wiper auto stop signal.
When a front wiper stop position signal is in the conditions listed below, IPDM E/R stops power supply to wiper
after repeating a front wiper 10 seconds activation and 20 seconds stop five times.
Control part
Fail-safe operation
Cooling fan
• Turns ON the cooling fan relay-2 and the cooling fan relay-3 when ignition switch is
turned ON (Cooling fan operates at HI)
• Turns OFF the cooling fan relay-1, the cooling fan relay-2 and the cooling fan relay-3
when the ignition switch is turned OFF (Cooling fan does not operate)
A/C compressor
A/C relay OFF
Alternator
Outputs the power generation command signal (PWM signal) 0%
Control part
Fail-safe operation
Headlamp
• Turns ON the headlamp low relay when the ignition switch is turned ON
• Turns OFF the headlamp low relay when the ignition switch is turned OFF
• Headlamp high relay OFF
• Parking lamps
• License plate lamps
• Side maker lamps
• Illuminations
• Tail lamps
• Turns ON the tail lamp relay when the ignition switch is turned ON
• Turns OFF the tail lamp relay when the ignition switch is turned OFF
Front wiper
• The status just before activation of fail-safe control is maintained until the ignition
switch is turned OFF while the front wiper is operating at LO or HI speed.
• The wiper is operated at LO speed until the ignition switch is turned OFF if the fail-
safe control is activated while the front wiper is set in the INT/AUTO mode and the
front wiper motor is operating.
Front fog lamps
Front fog lamp relay OFF
Horn
Horn OFF
Ignition relay
The status just before activation of fail-safe is maintained.
Starter motor
Starter control relay OFF
Steering lock unit
Steering lock relay OFF
Voltage judgment
IPDM E/R judgment
Operation
Ignition relay contact side
Ignition relay excitation coil
side
ON
ON
Ignition relay ON normal
—
OFF
OFF
Ignition relay OFF normal
—
ON
OFF
Ignition relay ON stuck
• Detects DTC “B2098: IGN RELAY ON”
• Turns ON the tail lamp relay for 10 min-
utes
OFF
ON
Ignition relay OFF stuck
Detects DTC “B2099: IGN RELAY OFF”
Revision: 2008 October
2009 Murano
PCS-32
< ECU DIAGNOSIS >
[IPDM E/R]
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
NOTE:
This operation status can be confirmed on the IPDM E/R “Data Monitor” that displays “BLOCK” for the item
“WIP PROT” while the wiper is stopped.
STARTER MOTOR PROTECTION FUNCTION
IPDM E/R turns OFF the starter control relay to protect the starter motor when the starter control relay remains
active for 90 seconds.
DTC Index
INFOID:0000000003420447
NOTE:
• The details of time display are as follows.
- CRNT: A malfunction is detected now.
- PAST: A malfunction was detected in the past.
• IGN counter is displayed on FFD (Freeze Frame data).
- The number is 0 when is detected now.
- The number increases like 1
→
2 ··· 38
→
39 after returning to the normal condition whenever IGN OFF
→
ON.
- The number is fixed to 39 until the self-diagnosis results are erased if it is over 39.
×
: Applicable
Ignition switch
Front wiper switch
Front wiper stop position signal
ON
OFF
The front wiper stop position signal (stop
position) cannot be input for 10 seconds.
ON
The front wiper auto stop signal does not
change for 10 seconds.
CONSULT display
Fail-safe
Refer to
No DTC is detected.
further testing
may be required.
—
—
U1000: CAN COMM CIRCUIT
×
B2098: IGN RELAY ON
×
B2099: IGN RELAY OFF
—
B2108: STRG LCK RELAY ON
—
B2109: STRG LCK RELAY OFF
—
B210A: STRG LCK STATE SW
—
B210B: START CONT RLY ON
—
B210C: START CONT RLY OFF
—
B210D: STARTER RELAY ON
—
B210E: STARTER RELAY OFF
—
B210F: INTRLCK/PNP SW ON
—
B2110: INTRLCK/PNP SW OFF
—
Revision: 2008 October
2009 Murano
PCS
PRECAUTIONS
PCS-33
< PRECAUTION >
[IPDM E/R]
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B
A
O
P
N
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000004778672
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 AIRBAG” and “SEAT BELT” of this
Service Manual.
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 performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIRBAG”.
• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-
vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors while ignition switch is
ON or engine is running, never use air or electric power tools or strike near the sensor(s) with a hammer.
Heavy vibration may activate the sensor(s), deploy the airbag(s), possibly cause serious injury.
When using air or electric power tools or hammers, always turn OFF ignition switch, disconnect the battery,
and wait 3 minutes or more before performing any service.
Revision: 2008 October
2009 Murano
PCS-34
< ON-VEHICLE REPAIR >
[IPDM E/R]
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
ON-VEHICLE REPAIR
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE
ROOM)
Exploded View
INFOID:0000000003420450
Removal and Installation
INFOID:0000000003420451
CAUTION:
IPDM E/R integrated relays are not serviceable parts, and must not be removed from the unit.
REMOVAL
1.
Disconnect the battery cable from the negative terminal.
2.
Remove the relay box cover.
3.
Disconnect the harness connector form the IPDM E/R (1).
4.
Press the pawl (A) and remove the IPDM E/R from relay box.
INSTALLATION
Install in the reverse order of removal.
1.
Relay box cover
2.
IPDM E/R
JPMIA0868ZZ
JPMIA0869ZZ
Revision: 2008 October
2009 Murano
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