Nissan Cube. Manual - part 847

B2190 NATS ANTENNA AMP.

SEC-199

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

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1.

Disconnect NATS antenna amp. connector.

2.

Check continuity between BCM harness connector and NATS antenna amp. harness connector.

3.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> Replace NATS antenna amp. Refer to 

SEC-265, "Removal and Installation"

.

NO

>> Repair or replace harness.

9.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-40, "Intermittent Incident"

.

>> INSPECTION END

BCM

NATS antenna amp.

Continuity

Connector

Terminal

Connector

Terminal

M65

21

M26

2

Existed

25

4

BCM

Ground

Continuity

Connector

Terminal

M65

21

Not existed

25

SEC-200

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

B2191 DIFFERENCE OF KEY

B2191 DIFFERENCE OF KEY

Description

INFOID:0000000009950271

Performs ID verification through BCM when ignition switch is ON position.
Prohibits the start of engine when an unregistered key is used.

DTC Logic

INFOID:0000000009950272

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Insert ignition key into the key cylinder.

2.

Turn ignition switch ON.

3.

Check “Self diagnosis result” with CONSULT.

Is DTC detected?

YES

>> Refer to 

SEC-200, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009950273

1.

PERFORM INITIALIZATION

Perform initialization of BCM and registration of all ignition keys using CONSULT.

Can the system be initialized and can the engine be started with registered ignition key?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

REPLACE IGNITION KEY

1.

Replace ignition key.

2.

Perform initialization of BCM and registration of all ignition keys using CONSULT.

Can the system be initialized and can the engine be started with registered ignition key?

YES

>> INSPECTION END

NO

>> GO TO 3.

3.

REPLACE BCM

Replace BCM. Refer to 

BCS-88, "Removal and Installation"

.

>> INSPECTION END

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B2191

DIFFERENCE OF KEY

The ID verification results between BCM and ignition key 
are NG.

• Ignition key 
• BCM

B2192 ID DISCORD, IMMU-ECM

SEC-201

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

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B2192 ID DISCORD, IMMU-ECM

Description

INFOID:0000000009950274

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

DTC Logic

INFOID:0000000009950275

DTC DETECTION LOGIC

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

BCS-40, "DTC Logic"

.

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

BCS-41, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Check “Self diagnosis result” with CONSULT.

Is DTC detected?

YES

>> Refer to 

SEC-201, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009950276

1.

PERFORM INITIALIZATION

Perform initialization of BCM and registration of all ignition keys using CONSULT.
Can the system be initialized and can the engine be started with registered ignition key?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

REPLACE BCM

1.

Replace BCM. Refer to 

BCS-88, "Removal and Installation"

.

2.

Perform initialization of BCM and registration of all ignition keys using CONSULT.

Can the system be initialized and can the engine be started with registered ignition key?

YES

>> INSPECTION END

NO

>> GO TO 3.

3.

REPLACE ECM

Replace ECM. Refer to 

SEC-178, "ECM : Special Repair Requirement"

.

Can the system be initialized and can the engine be started with registered ignition key?

YES

>> INSPECTION END

NO

>> GO TO 4.

4.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-40, "Intermittent Incident"

.

>> INSPECTION END

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B2192

ID DISCORD BCM-ECM

The ID verification results between BCM and ECM are NG.

• BCM
• ECM

SEC-202

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

B2193 CHAIN OF ECM-IMMU

B2193 CHAIN OF ECM-IMMU

Description

INFOID:0000000009950277

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

DTC Logic

INFOID:0000000009950278

DTC DETECTION LOGIC

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

BCS-40, "DTC Logic"

.

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

BCS-41, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Check “Self diagnosis result” with CONSULT.

Is DTC detected?

YES

>> Refer to 

SEC-202, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009950279

1.

REPLACE BCM

1.

Replace BCM. Refer to 

BCS-88, "Removal and Installation"

.

2.

Perform initialization of BCM and registration of all ignition keys using CONSULT.

Does the engine start?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

REPLACE ECM

Replace ECM. Refer to 

SEC-178, "ECM : 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 short)

• BCM
• ECM