Nissan Murano Z51 (2008 year). Manual - part 321

P1610 LOCK MODE

SEC-39

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

P1610 LOCK MODE

Description

INFOID:0000000003375602

When the starting operation is carried more than five times consecutively under the following conditions, NATS
will shift to the mode which prevents the engine from being started.
• Unregistered Intelligent Key is used.
• BCM or ECM is malfunctioning.

DTC Logic

INFOID:0000000003375603

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-39, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003375604

1.

CHECK ENGINE START FUNCTION

1.

Perform the check for DTC except DTC P1610.

2.

Use CONSULT-III to erase DTC after fixing.

3.

Turn ignition switch OFF.

4.

Turn ignition switch ON when registered Intelligent Key is inserted into key slot and wait for 5 seconds.

5.

Return the ignition switch OFF and wait 5 seconds.

6.

Repeat steps 4 and 5 twice (total of 3 cycles).

7.

Check that engine can start when registered Intelligent Key insert into key slot.

>> INSPECTION END

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

P1610

LOCK MODE

When the starting operation is carried out 
five or more times consecutively under the 
following conditions.
• Unregistered Intelligent Key
• BCM or ECM is malfunctioning.

—

Revision: 2008 October

2009 Murano

SEC-40

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

P1611 ID DISCORD, IMMU-ECM

P1611 ID DISCORD, IMMU-ECM

Description

INFOID:0000000003375605

BCM performs the ID verification with ECM that allows the engine to start. Start the engine if the ID is OK.
ECM prevents the engine from starting if the ID is not registered. BCM starts the communication with ECM if
ignition switch is turned ON.

DTC Logic

INFOID:0000000003375606

DTC DETECTION LOGIC

NOTE:
• If DTC B1611 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

SEC-36, "BCM : DTC Logic"

.

• If DTC B1611 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

SEC-38, "BCM : DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON under the following conditions.

-

Selector lever is in the P or N position.

-

Do not depress brake pedal.

2.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-40, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003375607

1.

PERFORM INITIALIZATION

Perform initialization with CONSULT-III. Re-register all Intelligent Keys.
For initialization and registration of Intelligent Key. Refer to “CONSULT-III Operation Manual NATS-IVIS/
NVIS”.

Can the system be initialized and can the engine be started with re-registered Intelligent Key?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

REPLACE BCM

1.

Replace BCM. Refer to 

BCS-96, "Removal and Installation"

.

2.

Perform initialization with CONSULT-III. 
For initialization, refer to “CONSULT-III Operation Manual NATS-IVIS/NVIS”.

Can the system be initialized and can the engine be started with re-registered Intelligent Key?

YES

>> INSPECTION END

NO

>> GO TO 3.

3.

REPLACE ECM

1.

Replace ECM. Refer to 

EC-15, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Descrip-

tion"

.

2.

Perform initialization with CONSULT-III. 

Can the system be initialized and can the engine be started with re-registered Intelligent Key?

YES

>> INSPECTION END

NO

>> GO TO 4.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

P1611

ID DISCORD, IMMU-
ECM

The ID verification result between BCM and ECM is 
NG. The registration is necessary.

• BCM
• ECM

Revision: 2008 October

2009 Murano

P1611 ID DISCORD, IMMU-ECM

SEC-41

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

4.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-40, "Intermittent Incident"

.

>> INSPECTION END

Revision: 2008 October

2009 Murano

SEC-42

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

P1612 CHAIN OF ECM-IMMU

P1612 CHAIN OF ECM-IMMU

Description

INFOID:0000000003375608

BCM performs the ID verification with ECM that allows the engine to start. Start the engine if the ID is OK.
ECM prevents the engine from starting if the ID is not registered. BCM starts the communication with ECM if
ignition switch is turned ON.

DTC Logic

INFOID:0000000003375609

DTC DETECTION LOGIC

NOTE:
• If DTC P1612 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

SEC-36, "BCM : DTC Logic"

.

• If DTC P1612 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

SEC-38, "BCM : DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON under the following conditions.

-

Selector lever is in the P or N position.

-

Do not depress brake pedal.

2.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-42, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003375610

1.

REPLACE BCM

1.

Replace BCM. Refer to 

BCS-96, "Removal and Installation"

.

2.

Perform initialization with CONSULT-III.
For initialization, refer to “CONSULT-III Operation Manual NATS-IVIS/NVIS”.

Does the engine start?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

REPLACE ECM

Replace ECM. Refer to 

EC-15, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description"

.

>> INSPECTION END

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

P1612

CHAIN OF ECM-IMMU

Inactive communication between ECM and BCM

• Harness or connectors

(The CAN communication line is open or 
shorted)

• BCM 
• ECM

Revision: 2008 October

2009 Murano

P1614 CHAIN OF IMMU-KEY

SEC-43

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

P1614 CHAIN OF IMMU-KEY

Description

INFOID:0000000003375611

Performs ID verification through BCM and Intelligent Key when push-button ignition switch is pressed.
Prohibits the release of steering lock or start of engine when an unregistered ID of Intelligent Key is used.

DTC Logic

INFOID:0000000003375612

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE 1

1.

Insert Intelligent Key into the key slot.

2.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-43, "Diagnosis Procedure"

.

NO

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE 2

1.

Press the push-button ignition switch.

2.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-43, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003375613

1.

 INSPECTION START

Perform inspection in accordance with procedure that confirms DTC.

Which procedure confirms DTC?

DTC confirmation procedure 1>>GO TO 2.
DTC confirmation procedure 2>>GO TO 4.

2.

CHECK KEY SLOT INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect key slot connector.

3.

Check voltage between key slot harness connector and ground.

Is the inspection result normal?

YES

>> Replace key slot. Refer to 

SEC-237, "Removal and Installation"

.

NO

>> GO TO 3.

3.

CHECK KEY SLOT CIRCUIT

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

P1614

CHAIN OF IMMU-
KEY

Inactive communication between key slot and 
BCM.

• Harness or connectors

(The key slot circuit is open or 
shorted)

• Key slot 
• BCM

(+)

(–)

Voltage (V)

(Approx.)

Key slot

Connector

Terminal

M99

2

Ground

Battery voltage

Revision: 2008 October

2009 Murano

SEC-44

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

P1614 CHAIN OF IMMU-KEY

1.

Disconnect BCM connector.

2.

Check continuity between key slot harness connector and BCM harness connector.

3.

Check continuity between key slot harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace harness or connector.

4.

CHECK PUSH-BUTTON IGNITION SWITCH OPERATION

Press push-button ignition switch and check if it turns ON.

Does ignition switch turn to ON?

YES

>> GO TO 5.

NO

>> GO TO 7.

5.

CHECK KEY SLOT COMMUNICATION SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect key slot connector.

3.

Check voltage between key slot harness connector and ground.

Is the inspection result normal?

YES

>> Replace key slot. Refer to 

SEC-237, "Removal and Installation"

.

NO

>> GO TO 6.

6.

CHECK KEY SLOT COMMUNICATION SIGNAL CIRCUIT

1.

Disconnect BCM connector.

2.

Check continuity between key slot harness connector and BCM harness connector.

3.

Check continuity between key slot harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace harness or connector.

7.

CHECK KEY SLOT GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect key slot connector.

Key slot

BCM

Continuity

Connector

Terminal

Connector

Terminal

M99

2

M122

80

Existed

Key slot

Ground

Continuity

Connector

Terminal

M99

2

Not existed

(+)

(–)

Voltage (V)

(Approx.)

Key slot

Connector

Terminal

M99

3

Ground

Battery voltage

Key slot

BCM

Continuity

Connector

Terminal

Connector

Terminal

M99

3

M122

81

Existed

Key slot

Ground

Continuity

Connector

Terminal

M99

3

Not existed

Revision: 2008 October

2009 Murano

P1614 CHAIN OF IMMU-KEY

SEC-45

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

3.

Check continuity between key slot harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace harness or connector.

8.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-40, "Intermittent Incident"

.

>> INSPECTION END

Key slot

Ground

Continuity

Connector

Terminal

M99

7

Existed

Revision: 2008 October

2009 Murano

SEC-46

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

P1615 DIFFRENCE OF KEY

P1615 DIFFRENCE OF KEY

Description

INFOID:0000000003375614

Performs ID verification through BCM and Intelligent Key when push-button ignition switch is pressed.
Prohibits the release of steering lock or start of engine when an unregistered ID of Intelligent Key is used.

DTC Logic

INFOID:0000000003375615

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Press the push-button ignition switch.

2.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-46, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003375616

1.

PERFORM INITIALIZATION

Perform initialization with CONSULT-III. Re-register all Intelligent Keys.
For initialization and registration of Intelligent Key. Refer to “CONSULT-III Operation Manual NATS-IVIS/
NVIS”.

Can the system be initialized and can the engine be started with re-registered Intelligent Key?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

REPLACE INTELLIGENT KEY

1.

Replace Intelligent Key.

2.

Perform initialization with CONSULT-III. 
For initialization and registration of Intelligent Key. Refer to “CONSULT-III Operation Manual NATS-IVIS/
NVIS”.

Can the system be initialized and can the engine be started with re-registered Intelligent Key?

YES

>> INSPECTION END

NO

>> GO TO 3.

3.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-40, "Intermittent Incident"

.

>> INSPECTION END

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P1615

DIFFERENCE OF KEY

The ID verification result between BCM and Intelligent Key 
is NG. The registration is necessary.

Intelligent Key 

Revision: 2008 October

2009 Murano

B2190 NATS ANTENNA AMP.

SEC-47

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

B2190 NATS ANTENNA AMP.

Description

INFOID:0000000003375617

Performs ID verification through BCM and Intelligent Key when push-button ignition switch is pressed.
Prohibits the release of steering lock or start of engine when an unregistered ID of Intelligent Key is used.

DTC Logic

INFOID:0000000003375618

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Insert Intelligent Key into the key slot.

2.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-47, "Diagnosis Procedure"

.

NO

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Press the push-button ignition switch.

2.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-47, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003375619

1.

 INSPECTION START

Perform inspection in accordance with procedure that confirms DTC.

Which procedure confirms DTC?

DTC confirmation procedure 1>>GO TO 2.
DTC confirmation procedure 2>>GO TO 4.

2.

CHECK KEY SLOT INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect key slot connector.

3.

Check voltage between key slot harness connector and ground.

Is the inspection result normal?

YES

>> Replace key slot. Refer to 

SEC-237, "Removal and Installation"

.

NO

>> GO TO 3.

3.

CHECK KEY SLOT CIRCUIT

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2190

NATS ANTENNA 
AMP

Inactive communication between key slot and 
BCM.

• Harness or connectors

(The key slot circuit is open or 
shorted)

• Key slot 
• BCM

(+)

(–)

Voltage (V)

(Approx.)

Key slot

Connector

Terminal

M99

2

Ground

Battery voltage

Revision: 2008 October

2009 Murano

SEC-48

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2190 NATS ANTENNA AMP.

1.

Disconnect BCM connector.

2.

Check continuity between key slot harness connector and BCM harness connector.

3.

Check continuity between key slot harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace harness or connector.

4.

CHECK PUSH-BUTTON IGNITION SWITCH OPERATION

Press push-button ignition switch and check if it turns ON.

Does ignition switch turn to ON?

YES

>> GO TO 5.

NO

>> GO TO 7.

5.

CHECK KEY SLOT COMMUNICATION SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect key slot connector.

3.

Check voltage between key slot harness connector and ground.

Is the inspection result normal?

YES

>> Replace key slot. Refer to 

SEC-237, "Removal and Installation"

.

NO

>> GO TO 6.

6.

CHECK KEY SLOT COMMUNICATION SIGNAL CIRCUIT

1.

Disconnect BCM connector.

2.

Check continuity between key slot harness connector and BCM harness connector.

3.

Check continuity between key slot harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace harness or connector.

7.

CHECK KEY SLOT GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect key slot connector.

Key slot

BCM

Continuity

Connector

Terminal

Connector

Terminal

M99

2

M122

80

Existed

Key slot

Ground

Continuity

Connector

Terminal

M99

2

Not existed

(+)

(–)

Voltage (V)

(Approx.)

Key slot

Connector

Terminal

M99

3

Ground

Battery voltage

Key slot

BCM

Continuity

Connector

Terminal

Connector

Terminal

M99

3

M122

81

Existed

Key slot

Ground

Continuity

Connector

Terminal

M99

3

Not existed

Revision: 2008 October

2009 Murano

B2190 NATS ANTENNA AMP.

SEC-49

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

3.

Check continuity between key slot harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace harness or connector.

8.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-40, "Intermittent Incident"

.

>> INSPECTION END

Key slot

Ground

Continuity

Connector

Terminal

M99

7

Existed

Revision: 2008 October

2009 Murano

SEC-50

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2191 DIFFERENCE OF KEY

B2191 DIFFERENCE OF KEY

Description

INFOID:0000000003375620

Performs ID verification through BCM and Intelligent Key when push-button ignition switch is pressed.
Prohibits the release of steering lock or start of engine when an unregistered ID of Intelligent Key is used.

DTC Logic

INFOID:0000000003375621

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Press the push-button ignition switch

2.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-50, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003375622

1.

PERFORM INITIALIZATION

Perform initialization with CONSULT-III. Re-register all Intelligent Keys.
For initialization and registration of Intelligent Key. Refer to “CONSULT-III Operation Manual NATS-IVIS/
NVIS”.

Can the system be initialized and can the engine be started with re-registered Intelligent Key?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

REPLACE INTELLIGENT KEY

1.

Replace Intelligent Key.

2.

Perform initialization with CONSULT-III. 
For initialization and registration of Intelligent Key. Refer to “CONSULT-III Operation Manual NATS-IVIS/
NVIS”.

Can the system be initialized and can the engine be started with re-registered Intelligent Key?

YES

>> INSPECTION END

NO

>> GO TO 3.

3.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-40, "Intermittent Incident"

.

>> INSPECTION END

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B2191

DIFFERENCE OF KEY

The ID verification result between BCM and Intelligent Key 
is NG. The registration is necessary.

Intelligent Key

Revision: 2008 October

2009 Murano

B2192 ID DISCORD, IMMU-ECM

SEC-51

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

B2192 ID DISCORD, IMMU-ECM

Description

INFOID:0000000003375623

BCM performs the ID verification with ECM that allows the engine to start. Start the engine if the ID is OK.
ECM prevents the engine from starting if the ID is not registered. BCM starts the communication with ECM if
ignition switch is turned ON.

DTC Logic

INFOID:0000000003375624

DTC DETECTION LOGIC

NOTE:
• If DTC B2192 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

SEC-36, "BCM : DTC Logic"

.

• If DTC B2192 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

SEC-38, "BCM : DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON under the following conditions.

-

Selector lever is in the P or N position.

-

Do not depress brake pedal.

2.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-51, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003375625

1.

PERFORM INITIALIZATION

Perform initialization with CONSULT-III. Re-register all Intelligent Keys.
For initialization and registration of Intelligent Key. Refer to “CONSULT-III Operation Manual NATS-IVIS/
NVIS”.

Can the system be initialized and can the engine be started with re-registered Intelligent Key?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

REPLACE BCM

1.

Replace BCM. Refer to 

BCS-96, "Removal and Installation"

.

2.

Perform initialization with CONSULT-III. 
For initialization, refer to “CONSULT-III Operation Manual NATS-IVIS/NVIS”.

Can the system be initialized and can the engine be started with re-registered Intelligent Key?

YES

>> INSPECTION END

NO

>> GO TO 3.

3.

REPLACE ECM

1.

Replace ECM. Refer to 

EC-15, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Descrip-

tion"

.

2.

Perform initialization with CONSULT-III. 

Can the system be initialized and can the engine be started with re-registered Intelligent Key?

YES

>> INSPECTION END

NO

>> GO TO 4.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2192

ID DISCORD, IMMU-
ECM

The ID verification result between BCM and ECM is 
NG. The registration is necessary.

• BCM
• ECM

Revision: 2008 October

2009 Murano

SEC-52

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2192 ID DISCORD, IMMU-ECM

4.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-40, "Intermittent Incident"

.

>> INSPECTION END

Revision: 2008 October

2009 Murano

B2193 CHAIN OF ECM-IMMU

SEC-53

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

B2193 CHAIN OF ECM-IMMU

Description

INFOID:0000000003375626

BCM performs the ID verification with ECM that allows the engine to start. Start the engine if the ID is OK.
ECM prevents the engine from starting if the ID is not registered. BCM starts the communication with ECM if
ignition switch is turned ON.

DTC Logic

INFOID:0000000003375627

DTC DETECTION LOGIC

NOTE:
• If DTC B2193 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

SEC-36, "BCM : DTC Logic"

.

• If DTC B2193 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

SEC-38, "BCM : DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON under the following conditions.

-

Selector lever is in the P or N position.

-

Do not depress brake pedal.

2.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-53, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003375628

1.

REPLACE BCM

1.

Replace BCM. Refer to 

BCS-96, "Removal and Installation"

.

2.

Perform initialization with CONSULT-III.
For initialization, refer to “CONSULT-III Operation Manual NATS-IVIS/NVIS”.

Does the engine start?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

REPLACE ECM

Replace ECM. Refer to 

EC-15, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description"

.

>> INSPECTION END

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2193

CHAIN OF ECM-
IMMU

Inactive communication between ECM and BCM

• Harness or connectors

(The CAN communication line is 
open or shorted)

• BCM 
• ECM

Revision: 2008 October

2009 Murano

SEC-54

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2195 ANTI-SCANNING

B2195 ANTI-SCANNING

Description

INFOID:0000000004747816

When ignition switch is turned ON, BCM performs ID verification with ECM. If ID verification that is out of the
specified specification is detected, BCM prohibits further ID verification and engine cranking.

DTC Logic

INFOID:0000000004747817

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON under the following conditions.

-

Selector lever is in the P or N position

-

Do not depress brake pedal

2.

Check “Self-diagnostic result” using CONSULT-III.

Is DTC detected?

YES

>> Refer to 

SEC-54, "Diagnosis Procedure"

.

NO

>> INSPECTION END.

Diagnosis Procedure

INFOID:0000000004747818

1.

CHECK SELF-DIAGNOSTIC RESULT-1

1.

Perform “Self-diagnostic result”  of BCM using CONSULT-III.

2.

Erase DTC.

3.

Perform DTC Confirmation Procedure. Refer to 

SEC-54, "DTC Logic"

.

Is DTC 2195 detected?

YES

>> GO TO 2.  

NO

>> INSPECTION END

2.

CHECK EQUIPMENT OF THE VEHICLE

Check that unspecified accessory part related to engine start is not installed.

Is unspecified accessory part related to engine start installed?

YES

>> GO TO 3.

NO

>> Replace BCM. Refer to 

BCS-96, "Removal and Installation"

.

3.

CHECK SELF-DIAGNOSTIC RESULT-2

1.

Obtain the customers approval to remove unspecified accessory part related to engine start, and then
remove it.

2.

Perform “Self-diagnostic result” of BCM using CONSULT-III.

3.

Erase DTC.

4.

Perform DTC Confirmation Procedure. Refer to 

SEC-54, "DTC Logic"

.

Is DTC 2195 detected?

YES

>> Replace BCM. Refer to 

BCS-96, "Removal and Installation"

.

NO

>> INSPECTION END

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2195

ANTI-SCANNING

ID verification between BCM and ECM that is out of 
the specified specification is detected

ID verification request out of the 
specified specification

Revision: 2008 October

2009 Murano