Nissan Sentra. Manual - part 766

SEC-92

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2604 SHIFT POSITION

YES

>> GO TO 7.

NO

>> Repair or replace harness.

7.

CHECK TRANSMISSION RANGE SWITCH

Refer to 

SEC-92, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Replace transmission range switch. 

8.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-39, "Intermittent Incident"

.

>> Inspection End.

9.

REPLACE BCM

1. Replace BCM. Refer to 

BCS-73, "Removal and Installation"

.

2. Perform initialization of BCM and registration of all Intelligent Keys using CONSULT.

>> Inspection End.

Component Inspection

INFOID:0000000009756736

1.

CHECK TRANSMISSION RANGE SWITCH

1. Turn ignition switch OFF.

2. Disconnect transmission range switch connector.

3. Check continuity between transmission range switch terminals.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace transmission range switch. 

Transmission range switch

Condition

Continuity

Terminal

7

10

P or N position

Yes

Other than above

No

B2605 SHIFT POSITION

SEC-93

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

B2605 SHIFT POSITION

DTC Logic

INFOID:0000000009756737

DTC DETECTION LOGIC

NOTE:

• If DTC B2605 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

BCS-63, "DTC Logic"

.

• If DTC B2605 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

BCS-64, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1. Shift the selector lever to the Park (P) position.

2. Turn ignition switch ON and wait 1 second or more.

3. Shift the selector lever to the Neutral (N) position and wait 1 second or more.

4. Shift the selector lever to any position other than Park (P) and Neutral (N), and wait 1 second or more.

5. Check DTC in Self Diagnostic Result mode of BCM using CONSULT.
Is DTC detected?

YES

>> Go to 

SEC-93, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009756738

Regarding Wiring Diagram information, refer to 

SEC-39, "Wiring Diagram"

.

1.

CHECK IPDM E/R INPUT SIGNAL

1. Turn ignition switch ON.

2. Check voltage between IPDM E/R harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK IPDM E/R INPUT SIGNAL CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect IPDM E/R connector.

3. Disconnect transmission range switch connector.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B2605

SHIFT PN DIAG IPDM

When ignition switch is ON, P/N position 
signal input from transmission range switch 
and P/N position signal (CAN) input from 
IPDM E/R do not match.

• Harness or connectors

(The CAN communication line is open or 
shorted.)

• Harness or connectors

(Transmission range switch circuit is 
open or shorted.)

• Transmission range switch
• IPDM  E/R
• BCM

(+)

(–)

Condition

Voltage (V)

(Approx.)

IPDM E/R

Connector

Terminal

E43

4

Ground

Selector lever

P or N position

Battery voltage

Other than above

0

SEC-94

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2605 SHIFT POSITION

4. Check continuity between IPDM E/R harness connector and transmission range switch harness connec-

tor.

5. Check continuity between IPDM E/R harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness.

3.

CHECK BCM INPUT SIGNAL

Check voltage between BCM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK BCM INPUT SIGNAL CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BCM connector.

3. Disconnect transmission range switch connector.

4. Check continuity between BCM harness connector and transmission range switch harness connector.

5. Check continuity between IPDM E/R harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness.

5.

REPLACE BCM

1. Replace BCM. Refer to 

BCS-73, "Removal and Installation"

.

2. Perform initialization of BCM using CONSULT.

3. Perform DTC CONFIRMATION PROCEDURE for B2605. Refer to 

SEC-93, "DTC Logic"

.

Is DTC B2605 detected again?

YES

>> Replace IPDM E/R. Refer to 

PCS-30, "Removal and Installation"

.

NO

>> Inspection End.

IPDM E/R

Transmission range switch

Continuity

Connector

Terminal

Connector

Terminal

E43

4

F26

10

Yes

IPDM E/R

Ground

Continuity

Connector

Terminal

E43

4

No

(+)

(–)

Condition

Voltage (V)

(Approx.)

BCM

Connector

Terminal

M83

69

Ground

Selector lever

P or N position

Battery voltage

Other than above

0

BCM

Transmission range switch

Continuity

Connector

Terminal

Connector

Terminal

M83

69

F26

10

Yes

BCM

Ground

Continuity

Connector

Terminal

M83

69

No

B2608 STARTER RELAY

SEC-95

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

B2608 STARTER RELAY

DTC Logic

INFOID:0000000009756739

DTC DETECTION LOGIC

NOTE:

• If DTC B2608 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

BCS-63, "DTC Logic"

.

• If DTC B2608 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

BCS-64, "DTC Logic"

.

• If DTC B2608 is displayed with other DTC (BCM), first perform the trouble diagnosis for other DTC detected.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1. Press push-button ignition switch under the following conditions to start engine.

CVT models

-

Selector lever: In the Park (P) position

-

Brake pedal: Depressed

M/T models

-

Shift lever: in the neutral position

-

Clutch pedal: Depressed

2. Wait 1 second after engine started.

3. Check DTC in Self Diagnostic Result mode of BCM using CONSULT.
Is DTC detected?

YES

>> Go to 

SEC-95, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009756740

Regarding Wiring Diagram information, refer to 

SEC-39, "Wiring Diagram"

.

1.

CHECK DTC OF IPDM E/R

Check DTC in Self Diagnostic Result mode of IPDM E/R using CONSULT.
Is DTC detected?

YES

>> Perform the trouble diagnosis related to the detected DTC. Refer to 

PCS-20, "DTC Index"

.

NO

>> GO TO 2.

2.

CHECK STARTER RELAY POWER SUPPLY CIRCUIT

1. Turn ignition switch ON.

2. Check voltage between BCM harness connector and ground.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B2608

STARTER RELAY

BCM outputs starter relay OFF signal but 
BCM receives starter relay ON signal from 
IPDM E/R (CAN).

• Harness or connectors

(The CAN communication line is open or 
shorted.)

• Harness or connectors 

(Starter relay circuit is open or shorted.)

• IPDM E/R
• Starter relay