Nissan Cube. Manual - part 811

B2602 SHIFT POSITION

SEC-55

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

NO

>> GO TO 3.

3.

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-88, "Removal and Installation"

.

NO

>> Repair or replace harness.

4.

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 5.

NO

>> Repair or replace harness.

5.

CHECK CVT SHIFT SELECTOR (DETENTION SWITCH)

Refer to 

SEC-55, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace CVT shift selector. Refer to 

TM-216, "Removal and Installation"

.

6.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-40, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000009950144

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 (detention switch) terminals.

CVT shift selector (detention switch)

BCM

Continuity

Connector

Terminal

Connector

Terminal

M58

7

M71

104

Existed

CVT shift selector (detention switch)

Ground

Continuity

Connector

Terminal

M58

7

Not existed

CVT shift selector (detention switch)

BCM

Continuity

Connector

Terminal

Connector

Terminal

M58

8

M68

37

Existed

CVT shift selector (detention switch)

Ground

Continuity

Connector

Terminal

M58

8

Not existed

SEC-56

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2602 SHIFT POSITION

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace CVT shift selector. Refer to 

TM-216, "Removal and Installation"

.

CVT shift selector (detention switch)

Condition

Continuity

Terminal

7

8

Selector  lever

P position

Not existed

Other than above

Existed

B2603 SHIFT POSITION

SEC-57

< 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:0000000009950145

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

DTC Logic

INFOID:0000000009950146

DTC DETECTION LOGIC

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

BCS-40, "DTC Logic"

.

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

BCS-41, "DTC Logic"

.

• If DTC B2603 is displayed with DTC B2601, first perform the trouble diagnosis for DTC B2601. Refer to

SEC-51, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE 1

1.

Turn ignition switch ON under the following conditions and wait 1 second or more.

-

Selector lever is in the P or N position

-

Do not depress brake pedal

2.

Check “Self-diagnosis result” using CONSULT.

Is DTC detected?

YES

>> Go to 

SEC-57, "Diagnosis Procedure"

.

NO

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE 2

1.

After step 1 of DTC confirmation procedure, shift selector lever to a position other than P or N

2.

Check “Self-diagnosis result” using CONSULT.

Is DTC detected?

YES

>> Go to 

SEC-57, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009950147

1.

INSPECTION START

Perform inspection in accordance with procedure that confirms DTC.

Which procedure confirms DTC?

DTC confirmation procedure 1>>GO TO 2.
DTC confirmation procedure 2>>GO TO 7.

DTC No.

Self-diagnosis name

DTC detecting condition

Possible causes

B2603

SHIFT POSI STATUS

BCM detects the following status when ignition 
switch is in the ON position.
• Transmission range switch: approx. 0 V
• CVT shift selector (detention switch): approx. 0 

V

• 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
• IPDM E/R

SEC-58

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2603 SHIFT POSITION

2.

CHECK TRANSMISSION RANGE SWITCH POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect transmission range switch connector.

3.

Turn ignition switch ON.

4.

Check voltage between transmission range switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 3.

3.

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.

4.

Check continuity between transmission range switch harness connector and ground.

Is the inspection result normal?

YES

>> Check 10 A fuse (No. 56, located in the IPDM E/R).

NO

>> Repair or replace harness.

4.

CHECK BCM INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Connect transmission range switch connector.

3.

Turn ignition switch ON.

4.

Check voltage between BCM harness connector and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-88, "Removal and Installation"

.

NO

>> GO TO 5.

5.

CHECK BCM INPUT SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect transmission range switch connector.

3.

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

(+)

(–)

Voltage (V)

(Approx.)

Transmission range switch

Connector

Terminal

F21

1

Ground

Battery voltage

Transmission range switch

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

F21

1

E15

59

Existed

A/T assembly

Ground

Continuity

Connector

Terminal

F21

1

Not existed

(+)

(–)

Condition

Voltage (V)

(Approx.)

BCM

Connector

Terminal

M71

102

Ground

Selector lever

P or N position

Battery voltage

Other than above

0