Nissan Murano Z51. Manual - part 1250

B2192 ID DISCORD, IMMU-ECM

SEC-47

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

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B2192 ID DISCORD, IMMU-ECM

Description

INFOID:0000000005515501

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:0000000005515502

DTC DETECTION LOGIC

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

SEC-32, "BCM : DTC Logic"

.

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

SEC-34, "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-47, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000005515503

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-95, "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-16, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special

Repair Requirement"

.

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, BCM-
ECM

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

• BCM
• ECM

SEC-48

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2192 ID DISCORD, IMMU-ECM

4.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-39, "Intermittent Incident"

.

>> INSPECTION END

B2193 CHAIN OF ECM-IMMU

SEC-49

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

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B2193 CHAIN OF ECM-IMMU

Description

INFOID:0000000005515504

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:0000000005515505

DTC DETECTION LOGIC

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

SEC-32, "BCM : DTC Logic"

.

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

SEC-34, "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-49, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000005515506

1.

REPLACE BCM

1.

Replace BCM. Refer to 

BCS-95, "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-16, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special

Repair Requirement"

.

>> INSPECTION END

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2193

CHAIN OF BCM-
ECM

Inactive communication between ECM and BCM

• Harness or connectors

(The CAN communication line is 
open or shorted)

• BCM 
• ECM

SEC-50

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2195 ANTI-SCANNING

B2195 ANTI-SCANNING

Description

INFOID:0000000005515507

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:0000000005515508

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-50, "Diagnosis Procedure"

.

NO

>> INSPECTION END.

Diagnosis Procedure

INFOID:0000000005515509

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-50, "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-95, "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-50, "DTC Logic"

.

Is DTC 2195 detected?

YES

>> Replace BCM. Refer to 

BCS-95, "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