Nissan March K13. Manual - part 582

B2602 SHIFT POSITION

SEC-67

< 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 continuity between A/T shift selector (detention switch) harness connector and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-57, "Removal and Installation"

.

NO

>> Repair or replace harness.

4.

CHECK A/T SHIFT SELECTOR CIRCUIT

1.

Disconnect BCM connector and IPDM E/R connector.

2.

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

3.

Check continuity between A/T shift selector (detention switch) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness.

5.

CHECK A/T SHIFT SELECTOR (DETENTION SWITCH)

Refer to 

SEC-67, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace A/T shift selector. Refer to TM.

6.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-33, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000006038541

1.

CHECK A/T SHIFT SELECTOR (DETENTION SWITCH)

1.

Turn ignition switch OFF.

2.

Disconnect A/T shift selector connector.

3.

Check continuity between A/T shift selector (detention switch) terminals.

Is the inspection result normal?

A/T shift selector (detention switch)

BCM

Continuity

Connector

Terminal

Connector

Terminal

M58

7

M71

104

Existed

A/T shift selector (detention switch)

Ground

Continuity

Connector

Terminal

M58

7

Not existed

A/T shift selector (detention switch)

BCM

Continuity

Connector

Terminal

Connector

Terminal

M58

8

M68

37

Existed

A/T shift selector (detention switch)

Ground

Continuity

Connector

Terminal

M58

8

Not existed

A/T shift selector (detention switch)

Condition

Continuity

Terminal

7

8

Selector  lever

P position

Not existed

Other than above

Existed

SEC-68

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2602 SHIFT POSITION

YES

>> INSPECTION END

NO

>> Replace A/T shift selector. Refer to TM.

B2603 SHIFT POSITION

SEC-69

< 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

DTC Logic

INFOID:0000000006038542

DTC DETECTION LOGIC

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

SEC-63, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE 1

1.

Shift the selector lever to the P position.

2.

Turn ignition switch ON and wait 1 second or more.

3.

Check DTC in “Self Diagnostic Result” mode of “BCM” using CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-69, "Diagnosis Procedure"

.

NO

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE 2

1.

Shift the selector lever to other than the P position and wait 1 second or more.

2.

Check DTC in “Self Diagnostic Result” mode of “BCM” using CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-69, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006038543

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.

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.

DTC No.

Trouble 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 signal: approx. 0 V
• A/T shift selector (detention switch) signal: 

approx. 0 V

• Harness or connector

[A/T shift selector (detention switch) 
circuit is open or shorted.]

• Harness or connectors

(Transmission range switch circuit is 
open or shorted.)

• A/T shift selector (detention switch)
• Transmission range switch
• BCM

(+)

(–)

Voltage (V)

(Approx.)

Transmission range switch

Connector

Terminal

F21

7

Ground

Battery voltage

SEC-70

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2603 SHIFT POSITION

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. 52, 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 harness 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-57, "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.

4.

Check continuity between transmission range switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace harness.

6.

CHECK TRANSMISSION RANGE SWITCH

Refer to 

SEC-72, "Component Inspection (Transmission Range Switch)"

.

Transmission range switch

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

F21

7

E14

57

Existed

Transmission range switch

Ground

Continuity

Connector

Terminal

F21

7

Not existed

(+)

(–)

Condition

Voltage (V)

(Approx.)

BCM

Connector

Terminal

M71

102

Ground

Selector lever

P or N position

Battery voltage

Other than above

0

Transmission range switch

BCM

Continuity

Connector

Terminal

Connector

Terminal

F21

10

M71

102

Existed

Transmission range switch

Ground

Continuity

Connector

Terminal

F21

10

Not existed