Nissan Altima HL32 Hybrid. Manual - part 855

PCS

B2615 BLOWER RELAY CIRCUIT

PCS-61

< COMPONENT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

B2615 BLOWER RELAY CIRCUIT

Description

INFOID:0000000004219155

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:0000000004219156

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

 PERFORM DTC CONFIRMATION PROCEDURE

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

-

CVT selector lever is in the P or N position.

-

Release brake pedal.

2. Check “SELF-DIAG RESULTS” with CONSULT-III. 
Is DTC detected?

YES

>> Refer to 

PCS-61, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000004219157

1.

 CHECK FRONT BLOWER MOTOR RELAY POWER SUPPLY

1. Turn ignition switch OFF.

2. Disconnect front blower motor relay.

3. Check voltage between front blower motor relay harness connector and ground under the following condi-

tions.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> GO TO 2

2.

 CHECK FRONT BLOWER MOTOR RELAY POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BCM.

3. Check continuity between front blower motor relay harness connector and BCM harness connector.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2615

Blower relay circuit

BCM detects a difference of signal for 1 second or 
more between the following information.
• Front blower motor relay ON/OFF request 
• Front blower motor relay feedback

• Harness or connectors 

(Front blower motor relay circuit is 
open or shorted)

• Front blower motor relay

Terminals

Condition

Voltage (V)

(+)

(-)

Front blower motor relay

Ground

Terminal

2

OFF or ACC

0

ON

Battery voltage

Front blower motor relay

BCM

Continuity

Terminal

Connector

Terminal

2

M19

90

Yes

PCS-62

< COMPONENT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

B2615 BLOWER RELAY CIRCUIT

4. Check continuity between front blower motor relay harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6

NO

>> Repair or replace harness.

3.

 CHECK FRONT BLOWER MOTOR RELAY GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Check continuity between front blower motor relay harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4

NO

>> Repair or replace harness.

4.

 CHECK FRONT BLOWER MOTOR RELAY POWER SUPPLY CIRCUIT-2

Check voltage between front blower motor relay harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5

NO

>> Repair or replace harness.

5.

 CHECK FRONT BLOWER MOTOR RELAY

Refer to 

PCS-62, "Component Inspection (Blower Relay)"

.

Is the inspection result normal?

YES

>> GO TO 6

NO

>> Replace front blower motor relay.

6.

 CHECK INTERMITTENT INCIDENT

Refer to 

GI-42, "Intermittent Incident"

.

>> Inspection End.

Component Inspection (Blower Relay)

INFOID:0000000004219158

1.

 CHECK FRONT BLOWER MOTOR RELAY

1. Turn ignition switch OFF.

2. Remove front blower motor relay.

Front blower motor relay

Ground

Continuity

Terminal

2

No

Front blower motor relay

Ground

Continuity

Terminal

1

Yes

Terminals

Voltage (V)

(+)

(-)

Front blower motor relay

Ground

Terminal

3

Battery voltage

PCS

B2615 BLOWER RELAY CIRCUIT

PCS-63

< COMPONENT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

3. Check the continuity between front blower motor relay terminals

under the following conditions.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace front blower motor relay.

Terminals

Condition

Continuity

3 and 5

12V direct current supply between terminals 1 and 2

Yes

No current supply

No

PBIB0098E

PCS-64

< COMPONENT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

B2616 IGNITION RELAY CIRCUIT

B2616 IGNITION RELAY CIRCUIT

Description

INFOID:0000000004219159

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:0000000004219160

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

 PERFORM DTC CONFIRMATION PROCEDURE

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

-

CVT selector lever is in the P or N position

-

Release brake pedal 

2. Check “SELF-DIAG RESULTS” with CONSULT-III. 
Is DTC detected?

YES

>> Refer to 

PCS-64, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000004219161

1.

 CHECK IGNITION RELAY-2 POWER SUPPLY

1. Turn ignition switch OFF.

2. Disconnect ignition relay-2.

3. Check voltage between ignition relay-2 harness connector and ground under the following conditions.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> GO TO 2

2.

 CHECK IGNITION RELAY-2 POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BCM.

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

4. Check continuity between blower relay harness connector and ground.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2616

Ignition relay circuit

An immediate operation of ignition relay-2 [fuse 
block (J/B)] is requested by BCM, but there is no re-
sponse for more than 1 second

• Harness or connectors 

(Ignition relay-2 circuit is open or 
shorted)

• Ignition relay-2 [fuse block(J/B)]

Terminals

Condition

Voltage (V)

(+)

(-)

Ignition relay-2

Ground

Terminal

2

Ignition switch OFF or ACC

0

Ignition switch ON

Battery voltage

Ignition relay-2

BCM

Continuity

Terminal

Connector

Terminal

2

M19

70

Yes