Nissan Sentra. Manual - part 765

SEC-88

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2603 SHIFT POSITION

Is the inspection result normal?

YES

>> GO TO 11.

NO

>> Repair or replace harness.

11.

CHECK CVT SHIFT SELECTOR (PARK POSITION SWITCH)

Refer to 

SEC-88, "Component Inspection [CVT Shift Selector (Park Position Switch)]"

.

Is the inspection result normal?

YES

>> GO TO 13.

NO

>> Replace CVT shift selector. Refer to 

TM-253, "Removal and Installation"

.

12.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-39, "Intermittent Incident"

.

>> Inspection End.

13.

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 (Transmission Range Switch)

INFOID:0000000009756732

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. 

Component Inspection [CVT Shift Selector (Park Position Switch)]

INFOID:0000000009756733

1.

CHECK CVT SHIFT SELECTOR (DETENTION SWITCH)

1. Turn ignition switch OFF.

2. Disconnect CVT shift selector connector.

3. Check continuity between CVT shift selector (park position switch) terminals.

Is the inspection result normal?

CVT shift selector (park position switch)

Ground

Continuity

Connector

Terminal

M38

13

No

Transmission range switch

Condition

Continuity

Terminal

7

10

P or N position

Yes

Other than above

No

CVT shift selector (detention switch)

Condition

Continuity

Terminal

12

13

Selector lever: P position

Selector button: Released

No

Selector button: Pressed

Yes

Selector lever: Other than P position

B2603 SHIFT POSITION

SEC-89

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

YES

>> Inspection End.

NO

>> Replace CVT shift selector. Refer to 

TM-253, "Removal and Installation"

.

SEC-90

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2604 SHIFT POSITION

B2604 SHIFT POSITION

DTC Logic

INFOID:0000000009756734

DTC DETECTION LOGIC

NOTE:

• If DTC B2604 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

BCS-63, "DTC Logic"

.

• If DTC B2604 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 5 seconds or more.

3. Shift the selector lever to the Neutral (N) position and wait 5 seconds or more.

4. Shift the selector lever to any position other than Park (P) and Neutral (N), and wait 5 seconds or more.

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

YES

>> Go to 

SEC-90, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009756735

Regarding Wiring Diagram information, refer to 

SEC-39, "Wiring Diagram"

.

1.

CHECK DTC OF TCM

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

YES

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

TM-126, "DTC Index"

.

NO

>> GO TO 2.

2.

CHECK FUSE

1. Turn power switch OFF.

2. Check that the following fuse in IPDM E/R is not blown.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace the blown fuse after repairing the cause of blowing.

3.

CHECK TRANSMISSION RANGE SWITCH POWER SUPPLY

1. Disconnect transmission range switch connector.

2. Turn ignition switch ON.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B2604

SHIFT PN DIAG CAN

The following states are detected for 5 seconds 
while ignition switch is ON.
• P/N position signal is sent from transmission 

range switch but shift position signal input 
(CAN) from TCM is other than P and N

• P/N position signal is not sent from transmis-

sion range switch but shift position signal input 
(CAN) from TCM is P or N

• Harness or connectors

(The CAN communication line is 
open or shorted.)

• Harness or connectors 

(Transmission range switch circuit 
is open or shorted.)

• TCM
• BCM

Signal name

Fuse No.

Ignition power supply

46 (10 A)

B2604 SHIFT POSITION

SEC-91

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

3. Check voltage between transmission range switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK TRANSMISSION RANGE SWITCH POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect IPDM E/R connector.

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

tor.

Is the inspection result normal?

YES

>> Replace IPDM E/R. Refer to 

PCS-30, "Removal and Installation"

.

NO

>> Repair or replace harness.

5.

CHECK BCM INPUT SIGNAL

1. Turn ignition switch OFF.

2. Reconnect transmission range switch connector.

3. Turn ignition switch ON.

4. Check voltage between BCM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> GO TO 6.

6.

CHECK BCM INPUT SIGNAL CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect transmission range switch connector.

3. Disconnect BCM connector.

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

5. Check continuity between transmission range switch harness connector and ground.

Is the inspection result normal?

(+)

(–)

Voltage (V)

(Approx.)

Transmission range switch

Connector

Terminal

F26

7

Ground

Battery voltage

Transmission range switch

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

F26

7

E43

14

Yes

(+)

(–)

Condition

Voltage (V)

(Approx.)

BCM

Connector

Terminal

M83

69

Ground

Selector lever

P or N position

Battery voltage

Other than above

0

Transmission range switch

BCM

Continuity

Connector

Terminal

Connector

Terminal

F26

10

M83

69

Yes

Transmission range switch

Ground

Continuity

Connector

Terminal

F26

10

No