Nissan Maxima. Manual — part 894

PCS-56

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

B2616 IGNITION RELAY CIRCUIT

B2616 IGNITION RELAY CIRCUIT

Description

INFOID:0000000010049437

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:0000000010049438

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 diagnostic result” with CONSULT.
Is DTC detected?

YES

>> Go to

PCS-56, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000010049439

Regarding Wiring Diagram information, refer to

PCS-103, "Wiring Diagram"

.

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

1. Turn ignition switch OFF.

2. Disconnect BCM harness connector.

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

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))

Ignition relay-2

Ground

Condition

Voltage (V)

Terminal

1

Ground

Ignition switch OFF

or ACC

0

Ignition switch ON

Battery voltage

ALMIA0446ZZ

PCS

B2616 IGNITION RELAY CIRCUIT

PCS-57

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

C

D

E

F

G

H

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J

K

L

B

A

O

P

N

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

Is the inspection result normal?

YES

>> GO TO 6

NO

>> Repair or replace harness.

3.

CHECK IGNITION RELAY-2 GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Check continuity between ignition relay-2 harness connector

and ground.

Is the inspection result normal?

YES

>> GO TO 4

NO

>> Repair or replace harness.

4.

CHECK IGNITION RELAY-2 POWER SUPPLY CIRCUIT-2

Check voltage between ignition relay-2 harness connector and

ground.

Is the inspection result normal?

YES

>> GO TO 5

NO

>> Repair or replace harness.

5.

CHECK IGNITION RELAY-2

Refer to

PCS-57, "Component Inspection (Ignition Relay-2)"

.

Is the inspection result normal?

YES

>> GO TO 6

NO

>> Replace ignition relay-2.

6.

CHECK INTERMITTENT INCIDENT

Refer to

GI-41, "Intermittent Incident"

.

>> Inspection End.

Component Inspection (Ignition Relay-2)

INFOID:0000000010049440

1.

CHECK IGNITION RELAY-2

1. Turn ignition switch OFF.

2. Remove ignition relay-2.

Ignition relay-2

BCM

Continuity

Terminal

Connector

Terminal

1

M19

70

Yes

Ignition relay-2

Ground

Continuity

Terminal

1

Ground

No

Ignition relay-2

Ground

Continuity

Terminal

2

Ground

Yes

ALMIA0448ZZ

Ignition relay-2

Ground

Voltage (V)

Terminal

5

Ground

Battery voltage

ALMIA0449ZZ

PCS-58

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

B2616 IGNITION RELAY CIRCUIT

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

the following conditions.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace ignition relay-2.

Terminals

Condition

Continuity

3 and 5

12V direct current supply between terminals 1 and 2

Yes

No current supply

No

PBIB0098E

PCS

B2618 BCM

PCS-59

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

B2618 BCM

Description

INFOID:0000000010049441

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:0000000010049442

DTC DETECTION LOGIC

NOTE:

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

PCS-44, "DTC Logic"

.

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

PCS-45, "DTC 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 diagnostic result” with CONSULT.
Is DTC detected?

YES

>> Go to

PCS-59, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000010049443

1.

INSPECTION START

1. Turn ignition switch ON.

2. Select “Self diagnostic result” mode with CONSULT.

3. Touch “ERASE”.

4. Perform DTC Confirmation Procedure.

See

PCS-59, "DTC Logic"

.

Is the 1st trip DTC B2618 displayed again?

YES

>> Replace BCM. Refer to

BCS-79, "Removal and Installation"

.

NO

>> Inspection End.

DTC No.

Trouble diagnosis

name

DTC detecting condition

Possible cause

B2618

BCM

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

• BCM