Nissan Cube. Manual - part 715

PCS

B2616 IGNITION RELAY CIRCUIT

PCS-85

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

3.

Check the continuity between ignition relay terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace Ignition relay

Terminals

Condition

Continuity

3 and 5

12 V direct current supply between terminals 1 and 2

Existed

No current supply

Not existed

PBIB0098E

PCS-86

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

B2618 BCM

B2618 BCM

Description

INFOID:0000000009945062

BCM controls the various electrical components and simultaneously supplies power according to the power
supply position.
BCM checks the power supply position internally.

DTC Logic

INFOID:0000000009945063

DTC DETECTION LOGIC

NOTE:
• If DTC B2618 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

BCS-40, "DTC Logic"

.

• If DTC B2618 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

BCS-41, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

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

-

Selector lever is in the P or N position

-

Do not depress brake pedal

2.

Check “Self-diagnosis result” of BCM with CONSULT.

Is DTC detected?

YES

>> Go to 

PCS-86, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009945064

1.

INSPECTION START

1.

Turn ignition switch ON.

2.

Select “Self-diagnosis result” of BCM with CONSULT.

3.

Touch “ERASE”.

4.

Perform DTC Confirmation Procedure.
See 

PCS-86, "DTC Logic"

.

Is the 1st trip DTC B2618 displayed again?

YES

>> Replace BCM. Refer to 

BCS-88, "Removal and Installation"

NO

>> INSPECTION END

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2618

BCM

An immediate operation of ignition relay (IPDM E/R) is re-
quested by BCM, but there is no response for more than 
1 second

BCM

PCS

B261A PUSH-BUTTON IGNITION SWITCH

PCS-87

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

B261A PUSH-BUTTON IGNITION SWITCH

Description

INFOID:0000000009945065

BCM transmits the change in the power supply position with the push-button ignition switch to IPDM E/R via
CAN communication line. IPDM E/R transmits the power supply position status via CAN communication line to
BCM.

DTC Logic

INFOID:0000000009945066

DTC DETECTION LOGIC

NOTE:
• If DTC B261A is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

BCS-40, "DTC Logic"

.

• If DTC B261A is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

BCS-41, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Press the push-button ignition switch under the following conditions, and wait for 1 second or more.

-

Selector lever is in the P or N position

-

Do not depress brake pedal

2.

Check “Self-diagnosis result” of BCM with CONSULT.

Is DTC detected?

YES

>> Go to 

PCS-87, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009945067

1.

CHECK IGNITION SWITCH OUTPUT SIGNAL (PUSH-BUTTON IGNITION SWITCH)

1.

Disconnect push-button ignition switch connector and IPDM E/R connector.

2.

Check voltage between push-button ignition switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (BCM)

1.

Disconnect BCM connector.

2.

Check continuity between BCM harness connector and push-button ignition switch harness connector.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B261A

PUSH-BTN IGN SW

 BCM detects a difference of signal for 1 second or 
more between the following items. 
• Push-button ignition switch signal
• Push-button ignition switch status signal (CAN)

• Harness or connectors

(Push-button ignition switch circuit 
is open or shorted.)

• BCM
• IPDM  E/R

(+)

(–)

Voltage (V)

(Approx.)

Push-button ignition switch

Connector

Terminal

M101

8

Ground

12

BCM

Push-button ignition switch

Continuity

Connector

Terminal

Connector

Terminal

M71

76

M101

8

Existed

PCS-88

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

B261A PUSH-BUTTON IGNITION SWITCH

3.

Check continuity between push-button ignition 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.

3.

CHECK IGNITION SWITCH OUTPUT SIGNAL (IPDM E/R)

Check voltage between IPDM E/R harness connector and ground.

Is the inspection result normal?

YES

>> Replace IPDM E/R. Refer to 

PCS-34, "Removal and Installation"

.

NO

>> GO TO 4.

4.

CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (IPDM E/R)

1.

Disconnect IPDM E/R connector.

2.

Check continuity between IPDM E/R harness connector and push-button ignition switch harness connec-
tor.

3.

Check continuity between push-button ignition switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness.

5.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-40, "Intermittent Incident"

.

>> INSPECTION END

Push-button ignition switch

Ground

Continuity

Connector

Terminal

M101

8

Not existed

(+)

(–)

Voltage (V)

(Approx.)

IPDM E/R

Connector

Terminal

E17

66

Ground

12

IPDM E/R

Push-button ignition switch

Continuity

Connector

Terminal

Connector

Terminal

E17

66

M101

8

Existed

Push-button ignition switch

Ground

Continuity

Connector

Terminal

M101

8

Not existed