Nissan Murano. Manual - part 1241

 

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Nissan Murano. Manual - part 1241

 

 

B2603 SHIFT POSITION

SEC-61

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

B2603 SHIFT POSITION

Description

INFOID:0000000009722771

BCM confirms the shift position with the following 4 signals.
• CVT shift selector (detention switch)
• Transmission range switch
• P position signal from IPDM E/R (CAN)
• P position signal from TCM (CAN)

DTC Logic

INFOID:0000000009722772

DTC DETECTION LOGIC

NOTE:
• If DTC B2603 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

SEC-31, "BCM : DTC Logic"

.

• If DTC B2603 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

SEC-33, "BCM : DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Start the engine under the following conditions and wait for at least 1 second.

-

Selector lever is in the P position.

-

Depress the brake pedal.

2.

Check “Self diagnostic result” with CONSULT.

Is DTC detected?

YES

>> Go to 

SEC-61, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009722773

1.

CHECK DTC WITH TCM

Check “Self diagnostic result” with CONSULT. Refer to 

TM-128, "DTC Index"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace the malfunctioning parts.

2.

CHECK TRANSMISSION RANGE SWITCH CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect TCM connector and BCM connector.

3.

Check continuity between TCM harness connector and BCM harness connector.

4.

Check continuity between TCM harness connector and ground.

DTC

Self-diagnosis name

DTC detecting condition

Possible causes

B2603

SHIFT POSI STATUS

BCM detects the followings status for 500 ms or 
more when shift is in P position, and ignition switch 
is in ON position.
• Transmission range switch: approx. 0V
• CVT shift selector (detention switch): approx. 0V

• Harness or connector

(CVT shift selector circuit is open or 
shorted.)

• Harness or connectors

(Transmission range switch circuit is 
open or shorted.)

• CVT shift selector (detention switch)
• Transmission range switch
• BCM

TCM

BCM

Continuity

Connector

Terminal

Connector

Terminal

F23

20

M123

140

Existed

SEC-62

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2603 SHIFT POSITION

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connector.

3.

CHECK CVT SHIFT SELECTOR POWER SUPPLY

1.

Disconnect CVT shift selector (detention switch) connector.

2.

Check voltage between CVT shift selector (detention switch) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK CVT SHIFT SELECTOR POWER SUPPLY CIRCUIT

1.

Disconnect BCM connector.

2.

Check continuity between CVT shift selector (detention switch) harness connector and BCM harness con-
nector.

3.

Check continuity between CVT shift selector (detention switch) harness connector and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-98, "Removal and Installation"

.

NO

>> Repair or replace harness or connector.

5.

CHECK CVT SHIFT SELECTOR CIRCUIT

1.

Disconnect BCM connector and IPDM E/R connector.

2.

Check continuity between CVT shift selector (detention switch) harness connector and BCM harness con-
nector.

3.

Check continuity between CVT shift selector (detention switch) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace harness or connector.

TCM

Ground

Continuity

Connector

Terminal

F23

20

Not existed

(+)

(–)

Voltage (V)

(Approx.)

CVT shift selector (detention switch)

Connector

Terminal

M57

8

Ground

Battery voltage

CVT shift selector (detention switch)

BCM

Continuity

Connector

Terminal

Connector

Terminal

M57

8

M122

96

Existed

CVT shift selector (detention switch)

Ground

Continuity

Connector

Terminal

M57

8

Not existed

CVT shift selector (detention switch)

BCM

Continuity

Connector

Terminal

Connector

Terminal

M57

9

M122

99

Existed

CVT shift selector (detention switch)

Ground

Continuity

Connector

Terminal

M57

9

Not existed

B2603 SHIFT POSITION

SEC-63

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

6.

CHECK CVT SHIFT SELECTOR (DETENTION SWITCH)

Refer to 

SEC-58, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Replace CVT shift selector. Refer to 

TM-167, "Removal and Installation"

.

7.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-44, "Intermittent Incident"

.

>> INSPECTION END

SEC-64

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2604 SHIFT POSITION

B2604 SHIFT POSITION

Description

INFOID:0000000009722774

BCM confirms the shift position with the following 4 signals.
• CVT shift selector (detention switch)
• Transmission range switch
• P position signal from IPDM E/R (CAN)
• P position signal from TCM (CAN)

DTC Logic

INFOID:0000000009722775

DTC DETECTION LOGIC

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

SEC-31, "BCM : DTC Logic"

.

• If DTC B2604 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

SEC-33, "BCM : DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Start the engine under the following conditions and wait for at least 1 second.

-

Selector lever is in the P or N position

-

Depress the brake pedal

2.

Check “Self diagnostic result” with CONSULT.

Is DTC detected?

YES

>> Go to 

SEC-64, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009722776

1.

CHECK DTC WITH TCM

Check “Self diagnostic result” with CONSULT. Refer to 

TM-128, "DTC Index"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace the malfunctioning parts.

2.

CHECK TRANSMISSION RANGE SWITCH CIRCUIT 1

1.

Turn ignition switch OFF.

2.

Disconnect TCM connector and BCM connector.

3.

Check continuity between TCM harness connector and BCM harness connector.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 3.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2604

PNP/CLUTCH SW

BCM detects the following status for 500 ms or 
more when the ignition switch is in the ON position.
• N position input signal exists. Shift position signal 

from TCM does not exist.

• N position input signal does not exist. Shift posi-

tion signal from TCM exists.

• Harness or connectors 

(Transmission range switch circuit 
is open or shorted.)

• Transmission range switch

TCM

BCM

Continuity

Connector

Terminal

Connector

Terminal

F23

20

M123

140

Existed

 

 

 

 

 

 

 

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