Nissan Titan A60. Manual - part 846

SEC-22

< DTC/CIRCUIT DIAGNOSIS >

B2192, P1611 ID DISCORD, IMMU-ECM

B2192, P1611 ID DISCORD, IMMU-ECM

Description

INFOID:0000000006161578

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:0000000006161579

DTC DETECTION LOGIC

NOTE:

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

SEC-16, "DTC Logic"

.

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

SEC-17, "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-22, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000006161580

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

>> GO TO 2

2.

REPLACE BCM

1. Replace BCM. Refer to 

BCS-53, "Removal and Installation"

.

2. 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

>> BCM is malfunctioning.

NO

>> GO TO 3

3.

REPLACE ECM

1. Replace ECM. Refer to Removal and Installation.

2. 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

>> ECM is malfunctioning.

NO

>> GO TO 4

4.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-39, "Intermittent Incident"

.

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. The registration is necessary.

• BCM
• ECM

P1611

B2192, P1611 ID DISCORD, IMMU-ECM

SEC-23

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

>> Inspection End.

SEC-24

< DTC/CIRCUIT DIAGNOSIS >

B2193, P1612 CHAIN OF ECM-IMMU

B2193, P1612 CHAIN OF ECM-IMMU

Description

INFOID:0000000006161581

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:0000000006161582

DTC DETECTION LOGIC

NOTE:

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

SEC-16, "DTC Logic"

.

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

SEC-17, "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-24, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000006161583

1.

REPLACE BCM

1. Replace BCM. Refer to 

BCS-53, "Removal and Installation"

.

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

P1610 LOCK MODE

SEC-25

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

P1610 LOCK MODE

Description

INFOID:0000000006161584

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 mechanical key is used.

• BCM or ECM's malfunctioning.

DTC Logic

INFOID:0000000006161585

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-25, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000006161586

1.

CHECK ENGINE START FUNCTION

1. Perform the check for DTC except DTC P1610.

2. Use CONSULT-III to erase DTC after fixing.

3. Check that engine can start with registered mechanical key.
Does the engine start?

YES

>> Inspection End.

NO

>> GO TO 2

2.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-39, "Intermittent Incident"

.

>> 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 mechanical key
• BCM or ECM's malfunctioning.

—