Nissan Altima L32. Manual - part 1279

SEC-266

< COMPONENT DIAGNOSIS >

[SEDAN WITH INTELLIGENT KEY]

B2191, P1615 DIFFERENCE OF KEY

B2191, P1615 DIFFERENCE OF KEY

Description

INFOID:0000000004206204

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:0000000004206205

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

>> Refer to 

SEC-266, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000004206206

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

YES

>> Intelligent Key was unregistered.

NO

>> BCM is malfunctioning.

• Replace BCM. Refer to 

BCS-96, "Removal and Installation"

.

• Perform initialization again.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2191

DIFFERENCE OF 
KEY

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

• Intelligent Key 

P1615

B2192, P1611 ID DISCORD, IMMU-ECM

SEC-267

< COMPONENT DIAGNOSIS >

[SEDAN WITH INTELLIGENT KEY]

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B2192, P1611 ID DISCORD, IMMU-ECM

Description

INFOID:0000000004206207

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:0000000004206208

DTC DETECTION LOGIC

NOTE:

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

SEC-235, "DTC Logic"

.

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

SEC-236, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON under the following conditions:

-

CVT selector lever is in the P or N position.

-

Do not depress the brake pedal.

2. Check “Self Diagnostic Result” with CONSULT-III.
Is DTC detected?

YES

>> Refer to 

SEC-267, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000004206209

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

YES

>> ID was unregistered.

NO

>> BCM is malfunctioning.

• Replace BCM. Refer to 

BCS-96, "Removal and Installation"

.

• Perform initialization again.

• Replace ECM.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2192

ID DISCORD, IMMU-
ECM

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

• BCM
• ECM

P1611

SEC-268

< COMPONENT DIAGNOSIS >

[SEDAN WITH INTELLIGENT KEY]

B2193, P1612 CHAIN OF ECM-IMMU

B2193, P1612 CHAIN OF ECM-IMMU

Description

INFOID:0000000004206210

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:0000000004206211

DTC DETECTION LOGIC

NOTE:

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

SEC-235, "DTC Logic"

.

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

SEC-236, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON under the following conditions:

-

CVT 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

>> Refer to 

SEC-268, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000004206212

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.

Does the engine start?

YES

>> BCM is malfunctioning.

• Replace BCM. Refer to 

BCS-96, "Removal and Installation"

.

• Perform initialization again.

NO

>> ECM is malfunctioning.

• Replace ECM.

• Perform ECM re-communicating function.

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

P1612

B2555 STOP LAMP

SEC-269

< COMPONENT DIAGNOSIS >

[SEDAN WITH INTELLIGENT KEY]

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B2555 STOP LAMP

Description

INFOID:0000000004206213

BCM detects the stop lamp status and confirms the stop lamp switch ON/OFF status. BCM confirms the

engine start condition according to the stop lamp switch ON/OFF status.

DTC Logic

INFOID:0000000004206214

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1. Depress the brake pedal and wait for at least 1 second.

2. Check “Self Diagnostic Result” with CONSULT-III.
Is DTC detected?

YES

>> Refer to 

SEC-269, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000004206215

1.

CHECK STOP LAMP SWITCH INPUT SIGNAL

1. Turn ignition switch OFF.

2. Disconnect BCM harness connector.

3. Check voltage between BCM harness connector and ground.

Is the inspection result normal?

YES

>> Stop lamp switch is OK.

NO

>> GO TO 2

2.

CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT

1. Disconnect stop lamp switch harness connector.

2. Check voltage between stop lamp harness connector and

ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Check harness for open or short between stop lamp

switch and fuse.

DTC No.

Trouble diagno-

sis name

DTC detecting condition

Possible cause

B2555

STOP LAMP

BCM makes a comparison between the 
upper voltage and lower voltage of stop 
lamp switch. It judges from their values to 
detect the malfunctioning circuit.

• Harness or connectors

(stop lamp switch circuit is open or shorted)

• Stop lamp switch
• Fuse

BCM

Ground

Stop lamp 

switch position

Voltage [V]

Connector

Terminal

M18

26

Ground

Depressed

Battery volt-

age

Released

0

ALKIA0437ZZ

Stop lamp switch

Ground

Voltage [V]

Connector

Terminal

E38

1

Ground

Battery voltage

ALKIA0438ZZ