Nissan Sentra. Manual - part 763

SEC-80

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2601 SHIFT POSITION

B2601 SHIFT POSITION

DTC Logic

INFOID:0000000009756725

DTC DETECTION LOGIC

NOTE:

• If DTC B2601 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

BCS-63, "DTC Logic"

.

• If DTC B2601 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 2 seconds or more.

3. Shift the selector lever to any position other than Park (P) and wait 2 seconds or more.

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

YES

>> Go to 

SEC-80, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009756726

Regarding Wiring Diagram information, refer to 

SEC-39, "Wiring Diagram"

.

1.

CHECK CVT SHIFT SELECTOR CIRCUIT (BCM)

1. Turn ignition switch OFF.

2. Disconnect CVT shift selector (park position switch) connector.

3. Disconnect BCM connector.

4. Check continuity between CVT shift selector (park position switch) harness connector and BCM harness

connector.

5. Check continuity between CVT shift selector (park position switch) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B2601

SHIFT P SIGNAL

When there is a difference between P range 
signal from CVT shift selector (park position 
switch) and P position signal from IPDM E/R 
(CAN).

• Harness or connectors

(CAN communication line is open or 
shorted.)

• Harness or connectors

[CVT shift selector (park position 
switch) circuit is open or shorted.]

• IPDM E/R
• BCM

CVT shift selector (park position switch)

BCM

Continuity

Connector

Terminal

Connector

Terminal

M38

13

M84

37

Yes

CVT shift selector (park position switch)

Ground

Continuity

Connector

Terminal

M38

13

No

B2601 SHIFT POSITION

SEC-81

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

2.

CHECK CVT SHIFT SELECTOR CIRCUIT (IPDM E/R)

1. Disconnect IPDM E/R connector.

2. Check continuity between CVT shift selector (park position switch) harness connector and IPDM E/R har-

ness connector.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

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.

3. Perform DTC CONFIRMATION PROCEDURE for DTC B2601. Refer to 

SEC-80, "DTC Logic"

.

Is DTC B2601 detected again?

YES

>> Replace IPDM E/R. Refer to 

PCS-30, "Removal and Installation"

.

NO

>> Inspection End.

CVT shift selector (park position switch)

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

M38

13

E39

64

Yes

SEC-82

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2602 SHIFT POSITION

B2602 SHIFT POSITION

DTC Logic

INFOID:0000000009756727

DTC DETECTION LOGIC

NOTE:

• If DTC B2602 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

BCS-63, "DTC Logic"

.

• If DTC B2602 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. Start engine.

2. Drive vehicle at a speed of 4 km/h (2.5 MPH) or more for 10 seconds or more.

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

YES

>> Go to 

SEC-82, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009756728

Regarding Wiring Diagram information, refer to 

SEC-39, "Wiring Diagram"

.

1.

CHECK DTC OF ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

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

YES

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

BRC-43, "DTC Index"

.

NO

>> GO TO 2.

2.

CHECK DTC OF COMBINATION METER

Check DTC in Self Diagnostic Result mode of METER/M&A using CONSULT.
Is DTC detected?

YES

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

MWI-26, "DTC Index"

.

NO

>> GO TO 3.

3.

CHECK CVT SHIFT SELECTOR POWER SUPPLY

1. Turn ignition switch OFF.

2. Disconnect CVT shift selector (park position switch) connector.

3. Turn ignition switch ON.

4. Check voltage between CVT shift selector (park position switch) harness connector and ground.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B2602

SHIFT P DIAG

BCM detects the following status for 10 seconds.
• Selector lever is in the Park (P) position
• Vehicle speed is 4 km/h (2.5 MPH) or more
• Ignition switch is in the ON position

• Harness or connectors

(The CAN communication line is 
open or shorted.)

• Harness or connectors 

[CVT shift selector (park position 
switch) circuit is open or shorted.]

• CVT shift selector (park position 

switch)

• Combination meter

B2602 SHIFT POSITION

SEC-83

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 4.

4.

CHECK CVT SHIFT SELECTOR POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BCM connector.

3. Check continuity between CVT shift selector (park position switch) harness connector and BCM harness

connector.

4. Check continuity between CVT shift selector (park position switch) 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 and registration of all Intelligent Keys using CONSULT.

>> Inspection End.

6.

CHECK CVT SHIFT SELECTOR CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BCM connector and IPDM E/R connector.

3. Check continuity between CVT shift selector (park position switch) harness connector and BCM harness

connector.

4. Check continuity between CVT shift selector (park position switch) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace harness.

7.

CHECK CVT SHIFT SELECTOR (PARK POSITION SWITCH)

Refer to 

SEC-84, "Component Inspection"

.

(+)

(–)

Voltage (V)

(Approx.)

CVT shift selector (park position switch)

Connector

Terminal

M38

12

Ground

12

CVT shift selector (park position switch)

BCM

Continuity

Connector

Terminal

Connector

Terminal

M38

12

M83

67

Yes

CVT shift selector (park position switch)

Ground

Continuity

Connector

Terminal

M38

12

No

CVT shift selector (park position switch)

BCM

Continuity

Connector

Terminal

Connector

Terminal

M38

13

M84

37

Yes

CVT shift selector (park position switch)

Ground

Continuity

Connector

Terminal

M38

13

No