Nissan Sentra. Manual - part 683

PCS

B2615 BLOWER 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 BLOWER MOTOR RELAY

Perform the relay component inspection. Refer to 

PCS-85, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace blower motor relay.

4.

 CHECK BLOWER RELAY POWER SUPPLY (BCM)

Check voltage between BCM connector M83 and ground.

Is the inspection result normal?

YES

>> Refer to 

GI-39, "Intermittent Incident"

.

NO

>> Replace BCM. Refer to 

BCS-73, "Removal and Installation"

.

Component Inspection

INFOID:0000000009755873

1.

CHECK BLOWER RELAY

1. Turn blower switch OFF.

2. Remove blower relay.

3. Check the continuity between blower relay terminals.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace blower relay

BCM

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

M83

65

—

Ignition: OFF

0V

Ignition: ON

Battery voltage

Terminals

Condition

Continuity

3 and 5

12 V direct current supply between terminals 1 and 2

Yes

No current supply

No

PBIB0098E

PCS-86

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

B2616 IGNITION RELAY CIRCUIT

B2616 IGNITION RELAY CIRCUIT

DTC Logic

INFOID:0000000009755874

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

 PERFORM SELF DIAGNOSTIC RESULT

1. Turn ignition switch ON under the following conditions, and wait for at least 1 second.

-

CVT selector lever is in the P (park) or N (neutral) position.

-

Release brake pedal 

2. Perform self diagnostic result. 
Is DTC B2616 detected?

YES

>> Refer to 

PCS-86, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009755875

Regarding Wiring Diagram information, refer to 

PCS-70, "Wiring Diagram"

.

1.

 CHECK IGNITION RELAY-2 POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BCM connector M83.

3. Check continuity between ignition relay-2 connector J-3 and BCM connector M83.

4. Check continuity between ignition relay-2 connector J-3 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

2.

 CHECK IGNITION RELAY-2 GROUND CIRCUIT

1. Check continuity between ignition relay-2 connector J-3 and ground.

Is the inspection result normal?

YES

>> GO TO 3.

CONSULT Display

DTC Detection Condition

Possible Cause

IGNITION RELAY CIRCUIT
[B2616]

An immediate operation of ignition relay-2 is re-
quested by BCM, but there is no response for more 
than 1 second.

• Harness or connectors.
• Ignition relay-2.
• Fuse block J/B.
• BCM.

Ignition relay-2

BCM

Continuity

Connector

Terminal

Connector

Terminal

J-3

1

M83

72

Yes

Ignition relay-2

Ground

Continuity

Connector

Terminal

J-3

1

—

No

Ignition relay-2

Ground

Continuity

Connector

Terminal

J-3

2

—

Yes

PCS

B2616 IGNITION RELAY CIRCUIT

PCS-87

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

NO

>> Repair or replace harness or connectors.

3.

 CHECK IGNITION RELAY-2

Perform the relay component inspection. Refer to 

PCS-87, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace ignition relay-2.

4.

 CHECK IGNITION RELAY-2 POWER SUPPLY (BCM)

Check voltage between BCM connector M83 and ground.

Is the inspection result normal?

YES

>> Refer to 

GI-39, "Intermittent Incident"

.

NO

>> Replace BCM. Refer to 

BCS-73, "Removal and Installation"

.

Component Inspection

INFOID:0000000009755876

1.

CHECK IGNITION RELAY-2

1. Turn ignition switch OFF.

2. Remove ignition relay-2.

3. Check the continuity between ignition relay-2 terminals.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace ignition relay-2.

BCM

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

M83

72

—

Ignition: OFF

0V

Ignition: ON

Battery voltage

Terminals

Condition

Continuity

3 and 5

12 V direct current supply between terminals 1 and 2

Yes

No current supply

No

PBIB0098E

PCS-88

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

B2618 BCM

B2618 BCM

DTC Logic

INFOID:0000000009755877

DTC DETECTION LOGIC

NOTE:

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

PCS-80, "DTC Logic"

.

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

PCS-81, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

 PERFORM SELF DIAGNOSTIC RESULT

1. Turn ignition switch ON under the following conditions, and wait for at least 1 second.

-

CVT selector lever is in the P (park) or N (neutral) position.

-

Release brake pedal

2. Perform self diagnostic result. 
Is DTC B2618 detected?

YES

>> Refer to 

PCS-88, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009755878

Regarding Wiring Diagram information, refer to 

PCS-70, "Wiring Diagram"

.

1.

CHECK IGNITION RELAY-1 CONTROL SIGNAL

Check voltage between BCM connector M83 and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-73, "Removal and Installation"

.

NO

>> GO TO 2.

2.

CHECK IGNITION RELAY-1 CONTROL SIGNAL CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BCM connector M83 and IPDM E/R connector E39.

3. Check continuity between BCM connector M83 and IPDM E/R connector E39.

4. Check continuity between BCM connector M83 and ground.

CONSULT Display

DTC Detection Condition

Possible Cause

BCM
[B2618]

An immediate operation of ignition relay-1 is request-
ed by BCM, but there is no response for more than 1 
second

• Harness or connectors 
• BCM
• IPDM E/R

(+)

(–)

Condition

Voltage (V)

(Approx.)

BCM

Connector

Terminal

M83

73

Ground

Ignition switch

OFF or ACC

Battery voltage

ON

0

BCM

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

M83

73

E39

68

Yes