Nissan Altima L32. Manual - part 1337

SEC-498

< COMPONENT DIAGNOSIS >

[SEDAN WITHOUT INTELLIGENT KEY]

B2619 BCM

B2619 BCM

Description

INFOID:0000000004499183

BCM requests IPDM E/R to supply power to steering lock unit. After receiving the power, the steering lock unit

transmits an ON signal to BCM.

DTC Logic

INFOID:0000000004499184

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1. Press the push-button ignition switch under the following conditions and wait for at least 1 second.

-

CVT selector lever is in the P position

-

Do not depress brake pedal

2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?

YES

>> Refer to 

SEC-498, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000004499185

1.

INSPECTION START

1. Turn ignition switch ON.

2. Check “Self diagnostic result” with CONSULT-III.

3. Touch “ERASE”.

4. Perform DTC Confirmation Procedure.

See 

SEC-498, "DTC Logic"

.

Is the DTC B2619 displayed again?

YES

>> Replace BCM. Refer to 

BCS-96, "Removal and Installation"

.

NO

>> Inspection End.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2619

BCM

BCM detects a mismatch between the power sup-
plied to the steering lock unit and the feedback for 
one second or more.

• BCM

B261A PUSH-BUTTON IGNITION SWITCH

SEC-499

< COMPONENT DIAGNOSIS >

[SEDAN WITHOUT INTELLIGENT KEY]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

B261A PUSH-BUTTON IGNITION SWITCH

Description

INFOID:0000000004499186

IPDM E/R transmits the push-button ignition switch status via CAN communication to BCM. BCM receives

push-button ignition switch status by hardwire input. BCM compares the 2 signals for mismatch.

DTC Logic

INFOID:0000000004499187

DTC DETECTION LOGIC

NOTE:

• If DTC B261A is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

SEC-433, "DTC Logic"

.

• If DTC B261A is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

SEC-434, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1. Press the push-button ignition switch under the following conditions and wait for at least 1 second.

-

CVT selector lever is in the P position

-

Do not depress brake pedal.

2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?

YES

>> Refer to 

SEC-499, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000004499188

1.

CHECK PUSH-BUTTON IGNITION SWITCH OUTPUT SIGNAL 1

1. Turn ignition switch OFF.

2. Disconnect push-button ignition switch harness connector and IPDM E/R harness connector.

3. Check voltage between push-button ignition switch harness con-

nector and ground.

Is the inspection result normal?

YES

>> GO TO 4

NO

>> GO TO 2

2.

CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT

1. Disconnect BCM harness connector.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B261A

PUSH-BUTTON 
IGNITION 
SWITCH

BCM detects the mismatch between the following for 1 
second or more
• Push-button ignition switch status
• Push-button ignition switch status from IPDM E/R (CAN)

• Harness or connectors

(Push-button ignition switch circuit is 
open or shorted)

• Between BCM and push-button igni-

tion switch

• Between IPDM E/R and push-button 

ignition switch

Push-button ignition switch

Ground

Voltage (V)

Connector

Terminal

M38

4

Ground

Battery voltage

ALKIA1350ZZ

SEC-500

< COMPONENT DIAGNOSIS >

[SEDAN WITHOUT INTELLIGENT KEY]

B261A PUSH-BUTTON IGNITION SWITCH

2. Check continuity between push-button ignition switch harness

connector M38 (A) terminal 4 and BCM harness connector M19

(B) terminal 77.

3. Check continuity between push-button ignition switch harness

connector M38 (A) terminal 4 and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair harness or connector.

3.

CHECK PUSH-BUTTON IGNITION SWITCH

1. Disconnect IPDM E/R harness connector.

2. Check continuity between push-button ignition switch harness

connector M38 (A) terminal 4 and IPDM E/R harness connector

E18 (B) terminal 28.

3. Check continuity between push-button ignition switch harness

connector and ground.

Is the inspection result normal?

YES

>> GO TO 4

NO

>> Repair harness or connector.

4.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-42, "Intermittent Incident"

.

>> Inspection End.

Push-button ignition switch

BCM

Continuity

Connector

Terminal

Connector

Terminal

A: M38

4

B: M19

77

Yes

Push-button ignition switch

Ground

Continuity

Connector

Terminal

A: M38

4

Ground

No

ALKIA0460ZZ

Push-button ignition switch

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

A: M38

4

B: E18

28

Yes

Push-button ignition switch

Ground

Continuity

Connector

Terminal

A: M38

4

Ground

No

ALKIA0461ZZ

B26E1 NO RECEPTION OF ENGINE STATUS SIGNAL

SEC-501

< COMPONENT DIAGNOSIS >

[SEDAN WITHOUT INTELLIGENT KEY]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

B26E1 NO RECEPTION OF ENGINE STATUS SIGNAL

Description

INFOID:0000000004499192

BCM receives the engine status signal from ECM via CAN communication.

DTC Logic

INFOID:0000000004499193

DTC DETECTION LOGIC

NOTE:

• If DTC B26E1 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

SEC-433, "DTC Logic"

.

• If DTC B26E1 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

SEC-434, "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-501, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000004499194

1.

INSPECTION START

1. Turn ignition switch ON.

2. Check “Self diagnostic result” with CONSULT-III.

3. Touch “ERASE”.

4. Perform DTC Confirmation Procedure.

See 

SEC-501, "DTC Logic"

.

Is the DTC B26E1 displayed again?

YES

>> GO TO 2

NO

>> Inspection End.

2.

REPLACE ECM

1. Replace ECM.

2. Refer to 

EC-560, "BASIC INSPECTION : Special Repair Requirement"

 (QR25DE except California) or

EC-24, "BASIC INSPECTION : Special Repair Requirement"

 (QR25DE California).

>> Inspection End.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B26E1

NO RECEPTION OF 
ENGINE STATUS 
SIGNAL

BCM does not receive the engine status signal from 
ECM when ignition switch is in the ON position

• ECM