Infiniti M35/M45 Y50. Manual - part 261

INTELLIGENT KEY SYSTEM

BL-113

C

D

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A

B

BL

Check Park Position Switch

NIS001XX

1. 

CHECK PARK POSITION SWITCH INPUT SIGNAL

 With CONSULT-II

Check (“P RANGE SW”) in “DATA MONITOR” mode.

 Without CONSULT-II

1.

Turn ignition switch OFF.

2.

Check voltage between Intelligent Key unit connector and ground.

OK or NG

OK

>> Park position switch circuit is OK.

NG

>> GO TO 2.

2. 

CHECK INTELLIGENT KEY UNIT OUTPUT SIGNAL

Check voltage between Intelligent Key unit connector and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Check the condition of harness and connector.

Monitor item

Condition

P RANGE SW

A/T device P position: ON

Other than above: OFF

PIIB6398E

Terminals

A/T device 

position

Voltage (V)

(Approx.)

(+)

(–)

Intelligent Key 
unit connector

Terminal

M32

27

Ground

P

0

Other than 

above

Battery voltage

PIIB6352E

Terminals

Condition

Voltage (V)

(Approx.)

(+)

(–)

Intelligent 

Key unit 

connector

Terminal

M33

58

Ground

Wake-up state 

(Open drive side 

door)

Battery voltage

Sleep state (After 

30 seconds or 

more since all 

doors are closed 

under the condition 

that the ignition 

switch is in the 

LOCK position)

0

PIIB6353E

BL-114

INTELLIGENT KEY SYSTEM

3. 

CHECK PARK POSITION SWITCH

1.

Disconnect A/T device connector.

2.

Check A/T device.

OK or NG

OK

>> GO TO 4.

NG

>> Check A/T shift lock system. Refer to 

AT-229, "A/T

SHIFT LOCK SYSTEM"

 .

4. 

CHECK HARNESS CONTINUITY 1

1.

Disconnect A/T device connector.

2.

Check continuity between Intelligent Key unit connector and A/T device connector.

3.

Check continuity between Intelligent Key unit connector and
ground.

OK or NG

OK

>> GO TO 5.

NG

>> Repair or replace harness between Intelligent Key and A/T device.

5. 

CHECK HARNESS CONTINUITY 2

1.

Check continuity between Intelligent Key unit connector and A/T device connector.

2.

Check continuity between Intelligent Key unit connector and
ground.

OK or NG

OK

>> Check the condition of harness and connector.

NG

>> Repair or replace harness between Intelligent Key and A/T device.

Terminal

A/T device 

position

Continuity

A/T device

9

10

P

Yes

Other than above

No

PIIB6354E

A

B

Continuity 

Intelligent Key 
unit connector

Terminal

A/T device

connector

Terminal

M32

27

M133

10

Yes

A

Ground

Continuity 

Intelligent Key unit

connector

Terminal

M32

27

No

PIIB6355E

A

B

Continuity 

Intelligent Key 
unit connector

Terminal

A/T device

connector

Terminal

M33

58

M133

9

Yes

A

Ground

Continuity 

Intelligent Key unit

connector

Terminal

M33

58

No

PIIB8993E

INTELLIGENT KEY SYSTEM

BL-115

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Check Ignition Switch Position

NIS001XY

1. 

CHECK IGNITION POWER SUPPLY

Check voltage between Intelligent Key unit connector and ground.

OK or NG

OK

>> Ignition power supply is OK.

NG

>> Check the following.

●

Repair or replace Intelligent Key unit power supply circuit.

●

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

●

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

Check Remote Keyless Entry Receiver

NIS001XZ

1. 

CHECK REMOTE KEYLESS ENTRY RECEIVER OUTPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Check signal between remote keyless entry receiver connector and ground with oscilloscope.

OK or NG

OK

>> Remote keyless entry receiver is OK.

NG

>> GO TO 2.

Terminals

Ignition switch position

(+)

(–)

Intelligent 

Key unit 

connector

Terminal

OFF

ACC

ON

M32

30

Ground

0

Battery voltage

Battery voltage

31

0

0

Battery voltage

PIIB6357E

Terminals

Keyfob 

condition

Signal

(Reference value)

(+)

(–)

Remote 

keyless 

entry 

receiver 

connector

Terminal

M89

2

Ground

No function

Any button 
is pressed

PIIB6358E

OCC3879D

OCC3880D

BL-116

INTELLIGENT KEY SYSTEM

2. 

CHECK REMOTE KEYLESS ENTRY RECEIVER POWER SUPPLY 

1.

Disconnect remote keyless entry receiver connector.

2.

Check signal between remote keyless entry receiver connector and ground with oscilloscope.

OK or NG

OK

>> GO TO 4.

NG

>> GO TO 3.

3. 

CHECK HARNESS CONTINUITY 1

1.

Disconnect Intelligent Key unit connector.

2.

Check continuity between Intelligent Key unit connector and remote keyless entry receiver connector.

3.

Check continuity between Intelligent Key unit connector and
ground.

OK or NG

OK

>> Check the condition of harness and connector.

NG

>> Repair or replace harness between Intelligent Key unit and remote keyless entry receiver.

4. 

CHECK REMOTE KEYLESS ENTRY RECEIVER GROUND CIRCUIT

Check continuity between remote keyless entry receiver connector and ground.

OK or NG

OK

>> GO TO 6.

NG

>> GO TO 5.

Terminals

Signal

(Reference value)

(+)

(–)

Remote keyless 

entry receiver 

connector

Terminal

M89

4

Ground

PIIB6359E

OCC3881D

A

B

Continuity 

Intelligent Key 
unit connector

Terminal

Remote keyless 

entry receiver

connector

Terminal

M32

7

M89

4

Yes

A

Ground

Continuity 

Intelligent Key unit

connector

Terminal

M32

7

No

PIIB6360E

Remote keyless entry 

receiver

connector

Terminal

Ground

Continuity

M89

1

Yes

PIIB6361E