Nissan Tiida C11. Manual - part 1165

SEC-32

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2193, P1612 CHAIN OF ECM-IMMU

B2193, P1612 CHAIN OF ECM-IMMU

Description

INFOID:0000000001404069

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:0000000001404070

DTC DETECTION LOGIC

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

SEC-21, "DTC Logic"

.

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

SEC-22, "DTC 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

>> Refer to 

SEC-32, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000001404071

1.

REPLACE BCM

1.

Replace BCM. Refer to 

XX-XX, "*****"

.

2.

Perform initialization with CONSULT-III.
For initialization, refer to CONSULT-III Operation Manual.

Does the engine start?

YES

>> BCM was malfunctioning.

NO

>>

ECM is malfunctioning.

• Replace ECM.
• Perform ECM re-communicating function.

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

P1612

B2194 ID DISCORD IMMU-I-KEY

SEC-33

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

B2194 ID DISCORD IMMU-I-KEY

Description

INFOID:0000000001404072

BCM performs the ID verification with Intelligent Key unit that allows the engine to start. BCM starts the com-
munication with Intelligent Key unit if ignition switch is turned ON and starts the engine if the ID is OK. BCM
prevents the engine from starting if the ID is not registered.

DTC Logic

INFOID:0000000001404073

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

>> Refer to 

SEC-33, "Diagnosis Procedure"

.

NO

>> INSPECTION END.

Diagnosis Procedure

INFOID:0000000001404074

1.

PERFORM INITIALIZATION

1.

Perform initialization with CONSULT-III. Re-register all mechanical keys.
For initialization and registration of mechanical key. Refer to CONSULT-III Operation Manual.

2.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> GO TO 2.

NO

>> ID was unregistered.

2.

REPLACE BCM

1.

Turn ignition switch OFF.

2.

Replace BCM. Refer to 

XX-XX, "*****"

.

3.

Perform initialization with CONSULT-III. Re-register all mechanical keys.
For initialization and registration of mechanical key. Refer to CONSULT-III Operation Manual.

Can the system be initialized and can the engine be started?

YES

>> BCM is malfunctioning.

NO

>> GO TO 3.

3.

CHECK INTERMITTENT INCIDENT

Refer to @@@.

>> INSPECTION END

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2194

DISCORD BCM-I-
KEY

The ID verification results between BCM and Intel-
ligent Key unit are NG. The registration is neces-
sary.

• BCM
• Intelligent Key unit

SEC-34

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2552 INTELLIGENT KEY

B2552 INTELLIGENT KEY

Description

INFOID:0000000001404081

Intelligent key unit performs engine start operation and steering lock control by crosschecking ID with the Intel-
ligent key.

DTC Logic

INFOID:0000000001404082

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

>> Refer to 

SEC-34, "Diagnosis Procedure"

.

NO

>> INSPECTION END.

Diagnosis Procedure

INFOID:0000000001404083

1.

REPLACE INTELLIGENT KEY UNIT

1.

Replace Intelligent Key unit.

2.

Perform initialization with CONSULT-III. Re-register all mechanical keys. Refer to CONSULT-III Operation
Manual.

3.

Start the engine.

Does the engine start?

YES

>> INSPECTION END

NO

>> Perform “DTC confirmation procedure”. Refer to 

SEC-34, "DTC Logic"

.

Special Repair Requirement

INFOID:0000000001404084

1.

REQUIRED WORK WHEN REPLACING INTELLIGENT KEY UNIT

Initialize control unit. Refer to CONSULT-III operation manual.

>> Work end.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2552

INTELLIGENT KEY 
UNIT

Malfunction is detected inside Intelligent 
key unit.

Intelligent Key unit

B2590 ID DISCORD BCM-I-KEY

SEC-35

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

B2590 ID DISCORD BCM-I-KEY

Description

INFOID:0000000001404085

Intelligent Key unit performs the ID verification with BCM that allows the engine to start. BCM starts the engine
if the ID is OK and prevents the engine from starting if the ID is not registered.

DTC Logic

INFOID:0000000001404086

DTC DETECTION LOGIC

NOTE:
• If DTC B2590 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

SEC-21, "DTC Logic"

.

• If DTC B2590 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

SEC-22, "DTC 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

>> Refer to 

SEC-35, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000001404087

1.

PERFORM INITIALIZATION

Perform initialization with CONSULT-III. Re-register all mechanical keys.
For initialization and registration of mechanical key. Refer to CONSULT-III Operation Manual.

Can the system be initialized and can the engine be started with re-registered mechanical key?

YES

>> ID was unregistered.

NO

>>

BCM is malfunctioning.

• Replace BCM. Refer to 

BCS-57, "Removal and Installation of BCM"

.

• Perform initialization again

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2590

ID DISCORD BCM-I-
KEY

The ID verification results between BCM and Intel-
ligent Key unit are NG. The registration is neces-
sary.

• BCM
• Intelligent Key unit