Nissan Murano Z50 (2007 year). Manual - part 181

AUTOMATIC DRIVE POSITIONER

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4. 

CHECK DETENTION SWITCH HARNESS (WITH INTELLIGENT KEY)

1.

Turn ignition switch OFF.

2.

Disconnect CVT device [detention switch (key)] connector and
key switch and ignition knob switch connector.

3.

Check continuity between CVT device [detention switch (key)]
connector M57 terminal 5 and key switch and ignition knob
switch connector M118 terminal 4.

4.

Check continuity between CVT device [detention switch (key)]
connector M57 terminal 5 and ground

OK or NG

OK

>> Check the condition of the harness and connector.

NG

>> Repair or replace harness between CVT device [detention switch (key)] and key switch and igni-

tion switch.

5. 

CHECK DETENTION SWITCH

Check continuity between detection switch as follows.

OK or NG

OK

>> GO TO 6.

NG

>> Replace CVT device [detention switch (key)].

6. 

CHECK DETENTION SWITCH SIGNAL CIRCUIT HARNESS CONTINUITY

1.

Disconnect driver seat control unit connector.

2.

Check continuity between driver seat control unit connector
B303 terminal 21 and CVT device [detention switch (key)] con-
nector M57 terminal 6.

3.

Check continuity between driver seat control unit connector
B303 terminal 21 and ground.

OK or NG

OK

>> Replace driver seat control unit.

NG

>> Repair or replace harness between automatic drive positioner control unit and CVT device [deten-

tion switch (key)].

5 (B/Y) – 4 (B/R)

: Continuity should exist.

5 (B/Y) – Ground

: Continuity should not exist.

PIIB3183E

Terminals

Condition

Continuity

5

6

P–position

Yes.

Other than P–position

No.

PIIA4566E

21 (R/L) – 6 (L)

: Continuity should exist.

21 (R/L) – Ground

: Continuity should not exist.

PIIA4567E

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Check Key Switch Circuit (Without Intelligent Key)

NIS001G7

1. 

CHECK KEY SWITCH AND KEY LOCK SOLENOID

 With CONSULT-II

Touch “BCM”. With “IGN KEY SW” on the DATA MONITOR, Check
ON/OFF operation.

 Without CONSULT-II

GO TO 2.

OK or NG

OK

>> Key switch circuit is OK.

NG

>> GO TO 2.

2. 

CHECK KEY SWITCH POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Check voltage between key switch connector M28 terminal 3
and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Check harness between key switch and fuse.

3. 

CHECK KEY SWITCH 

1.

Disconnect key switch connector.

2.

Check continuity between key switch as follows.

OK or NG

OK

>> GO TO 4.

NG

>> Replace key switch.

Monitor item [OPERA-

TION or UNIT]

Contents

IGN KEY SW

“ON/

OFF”

Key inserted (ON)/key removed (OFF) status judged 
from the key-in detection switch is displayed.

PIIA0298E

3 (Y/R) – Ground

: Battery voltage.

PIIB4730E

Connector

Terminals

Condition

Continuity

M28

3

4

Key is inserted in ignition key cylinder.

Yes

Key is removed from ignition key cylinder. 

No

PIIA3044E

AUTOMATIC DRIVE POSITIONER

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4. 

CHECK HARNESS CONTINUITY

1.

Check continuity between BCM connector M34 terminal 37 and
key switch connector M28 terminal 4.

2.

Check continuity between BCM connector M34 terminal 37 and
ground.

OK or NG

OK

>> Key switch circuit is OK.

NG

>> Repair or replace harness between key switch and

BCM.

Check Key Switch Circuit (With Intelligent Key)

NIS001G8

1. 

CHECK KEY SWITCH

 With CONSULT-II

Touch “BCM”. With “IGN KEY SW” on the DATA MONITOR, Check
ON/OFF operation.

 Without CONSULT-II

GO TO 2.

OK or NG

OK

>> Key switch circuit is OK.

NG

>> GO TO 2.

2. 

CHECK KEY SWITCH POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Check voltage between key switch and ignition knob switch con-
nector M118 terminal 3 and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Check harness between key switch and ignition knob

switch and fuse.

37 (B/R) – 4 (B/R)

: Continuity should exist.

37 (B/R) – Ground

: Continuity should not exist.

PIIB4884E

Monitor item [OPERA-

TION or UNIT]

Contents

IGN KEY SW

“ON/

OFF”

Key inserted (ON)/key removed (OFF) status judged 
from the key-in detection switch is displayed.

PIIA0298E

3 (G/Y) – Ground

: Battery voltage.

PIIB3181E

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3. 

CHECK KEY SWITCH

1.

Disconnect key switch and ignition knob switch connector.

2.

Check continuity between key switch and ignition knob switch as
follows.

OK or NG

OK

>> GO TO 4.

NG

>> Replace key switch and ignition knob switch.

4. 

CHECK HARNESS CONTINUITY

1.

Check continuity between BCM connector M34 terminal 37 and
key switch and ignition knob switch connector M118 terminal 4.

2.

Check continuity between BCM connector M34 terminal 37 and
ground.

OK or NG

OK

>> Key switch circuit is OK.

NG

>> Repair or replace harness between key switch and igni-

tion knob switch and BCM.

Check UART Communication Line Circuit

NIS001G9

1. 

CHECK UART LINE INPUT/OUTPUT SIGNAL 1

1.

Turn ignition switch OFF.

2.

Check signal between driver seat control unit connector and
ground, with oscilloscope.

Connector

Terminals

Condition

Continuity

M118

3

4

Key is inserted in ignition key cylinder.

Yes

Key is removed from ignition key cylinder. 

No

PIIB3182E

37 (B/R) – 4 (B/R)

: Continuity should exist.

37 (B/R) – Ground

: Continuity should not exist.

PIIB3203E

Connector

Terminals 

(Wire color)

Condition

Signal

(Reference value)

(+)

(–)

B303

17 (Y/L)

Ground

Pedal 
adjusting 
switch ON 
(FR or RR 
operation)

PIIA4599E

PIIA4814E

AUTOMATIC DRIVE POSITIONER

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OK or NG

OK

>> GO TO 2.

NG

>> Check the following.

●

When voltage waveform does not appear with a constant voltage (approx. 5V), replace driver
seat control unit.

●

When voltage waveform does not appear with a constant voltage (approx. 0V), replace auto-
matic driver seat control unit.

2. 

CHECK UART LINE INPUT/OUTPUT SIGNAL 2

Check signal between automatic driver positioner control unit con-
nector ground, with oscilloscope.

OK or NG

OK

>> GO TO 3.

NG

>> Check the following.

●

When voltage waveform does not appear with a constant voltage (approx. 5V), replace auto-
matic drive positioner control unit.

●

When voltage waveform does not appear with a constant voltage (approx. 0V),replace driver
seat control unit.

3. 

CHECK UART LINE HERNESS

1.

Disconnect driver seat control unit connector and automatic
drive positioner control unit connector.

2.

Check continuity between driver seat control unit connector
B303 terminal 1, 17 and automatic drive positioner connector
M19 terminal 10, 26.

3.

Check continuity between driver seat control unit connector
B303 terminal 1, 17 and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace harness between driver seat control unit and automatic drive positioner control

unit.

4. 

CHECK DRIVER SEAT CONTROL UNIT

Dose the automatic drive positioner operate, when the driver control unit exchanged?

Connector

Terminals 

(Wire color)

Condition

Signal

(Reference value)

(+)

(–)

M19

10 (R)

Ground

Pedal 
adjusting 
switch ON 
(FR or RR 
operation)

PIIA4816E

PIIA4813E

1 (Y/W) 

−

 10 (R)

: Continuity should exist.

17 (Y/L) 

−

 26 (R/G)

: Continuity should exist.

1 (Y/W) 

−

 Ground

: Continuity should not exist.

17 (Y/L) 

−

 Ground

: Continuity should not exist.

PIIA4598E

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OK or NG

OK

>> Replace automatic drive positioner control unit.

NG

>> Replace driver seat control unit. 

Check Lumbar Support Circuit

NIS001GA

1. 

CHECK LUMBAR SUPPORT SWITCH POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect lumbar support switch connector.

3.

Check voltage between lumbar support switch connector B314
terminal 33D and ground.

OK or NG

OK

>> GO TO 2.

NG

>> Repair or replace harness between fuse block (J/B) and lumbar support switch. 

2. 

CHECK LUMBAR SUPPORT SWITCH

Check voltage between lumbar support switch connector and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Replace lumbar support switch.

33D (R) – Ground

: Battery voltage

PIIB5702E

Connector

Terminals

 (Wire color)

Condition

Voltage (V) 

(Approx.)

(+)

(-)

B314

4 (L)

Ground

Lumbar support switch 
turned to forward

Battery voltage

Lumbar support switch 
neutral position

0

5 (W)

Lumbar support switch 
turned to backward

Battery voltage

Lumbar support switch 
neutral position

0

PIIB5703E

AUTOMATIC DRIVE POSITIONER

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3. 

CHECK LUMBAR SUPPORT MOTOR HARNESS

1.

Disconnect lumbar support motor connector.

2.

Check continuity between lumbar support switch connector
B314 terminal 4, 5 and lumbar support motor connector B315
terminal 4, 5.

3.

Check continuity between lumbar support switch connector
B314 terminal 4, 5 and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace harness between lumbar support switch and lumbar support motor.

4. 

CHECK LUMBAR SUPPORT SWITCH GROUND CIRCUIT

Check continuity between lumbar support switch connector B314
terminal 48D and ground.

OK or NG

OK

>> Check the condition of the harness and connector.

NG

>> Repair or replace harness between lumbar support switch and ground. 

4 (L) 

−

 4 (L)

: Continuity should exist.

5 (W) 

−

 5 (W)

: Continuity should exist.

4 (L) 

−

 Ground

: Continuity should not exist.

5 (W) 

−

 Ground

: Continuity should not exist.

PIIB5704E

48D (B) – Ground

: Continuity should exist.

PIIB5705E

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POWER SEAT

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POWER SEAT

PFP:87016

Automatic Drive Positioner Interlocking Power Seat

NIS001GB

Automatic drive positioner interlocking power seat. Refer to

SE-12, "AUTOMATIC DRIVE POSITIONER"

  .

POWER SEAT

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Schematic

NIS001GC

TIWB0815E

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POWER SEAT

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Wiring Diagram — SEAT —/Driver Side Without Automatic Drive Positioner

NIS001GD

TIWB0816E

POWER SEAT

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TIWA0531E

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POWER SEAT

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TIWB0831E

POWER SEAT

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Wiring Diagram — SEAT —/Passenger Side

NIS001GE

TIWB0817E

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HEATED SEAT

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HEATED SEAT

PFP:87335

Description

NIS001GF

●

When handling seat, be extremely careful not to scratch heating unit.

●

To replace heating unit, seat trim and pad should be separated.

●

Do not use any organic solvent, such as thinner, benzene, alcohol, etc. to clean trims.

SBT314

HEATED SEAT

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Schematic

NIS001GG

TIWB0197E

SE-98

HEATED SEAT

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Wiring Diagram — HSEAT —

NIS001GH

TIWA0320E