Nissan March K13. Manual - part 497

PCS-70

< BASIC INSPECTION >

[POWER DISTRIBUTION SYSTEM]

DIAGNOSIS AND REPAIR WORK FLOW

Is malfunctioning part detected?

YES

>> GO TO 8.

NO

>> Check voltage of related BCM terminals using CONSULT-III.

8.

REPAIR OR REPLACE THE MALFUNCTIONING PART

1.

Repair or replace the malfunctioning part.

2.

Reconnect parts or connectors disconnected during Diagnostic Procedure again after repair and replace-
ment.

3.

Check DTC. If DTC is displayed, erase it.

>> GO TO 9.

9.

FINAL CHECK

When DTC was detected in step 2, perform DTC Confirmation Procedure or Component Function Check
again, and then check that the malfunction is repaired securely.
When symptom was described by the customer, refer to confirmed symptom in step 3 or 4, and check that the
symptom is not detected.

Does the symptom reappear?

YES (DTC is detected)>>GO TO 7.
YES (Symptom remains)>>GO TO 6.
NO

>> INSPECTION END

PCS

B2553 IGNITION RELAY

PCS-71

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

C

D

E

F

G

H

I

J

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L

B

A

O

P

N

DTC/CIRCUIT DIAGNOSIS

B2553 IGNITION RELAY

DTC Logic

INFOID:0000000005998914

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON under the following conditions, and wait for 2 seconds or more.

-

Selector lever is in the P or N position

-

Do not depress brake pedal

2.

Check “Self-diagnosis result” with CONSULT-III. 

Is DTC detected?

YES

>> Go to 

PCS-71, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000005998915

1.

CHECK FUSE

Check that the following fuse is not blown.

Is the fuse fusing?

YES

>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.

NO

>> GO TO 2.

2.

CHECK IGNITION RELAY FEEDBACK INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector.

3.

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 3.

3.

CHECK IGNITION RELAY FEEDBACK CIRCUIT

1.

Disconnect ignition relay connector.

2.

Check continuity between BCM harness connector and ignition relay harness connector.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2553

IGNITION RELAY

BCM detects a difference of signal for 2 seconds or 
more between the following items. 
• Ignition relay ON/OFF operation
• Ignition relay feedback.

• Harness or connectors

(ignition relay feedback circuit is 
open or short)

• BCM
• Fuse

Signal name

Fuse

Ignition power supply

6

(+)

(–)

Condition

Voltage (V)

(Approx.)

BCM

Connector

Terminal

M68

38

Ground

Ignition switch

OFF or ACC

0

ON

Battery voltage

PCS-72

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

B2553 IGNITION RELAY

3.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK IGNITION RELAY

Refer to 

PCS-72, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace ignition relay.

5.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-33, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000005998916

1.

CHECK IGNITION RELAY

1.

Turn ignition switch OFF.

2.

Remove ignition relay.

3.

Check the continuity between ignition relay terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace ignition relay.

BCM

Ignition relay

Continuity

Connector

Terminal

Terminal

M68

38

3

Existed

BCM

Ground

Continuity

Connector

Terminal

M68

38

Not existed

Terminals

Condition

Continuity

3 and 5

12 V direct current supply between terminals 1 and 2

Existed

No current supply

Not existed

PBIB0098E

PCS

B2614 ACC RELAY CIRCUIT

PCS-73

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

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D

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B2614 ACC RELAY CIRCUIT

DTC Logic

INFOID:0000000005998917

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn the power supply position to ACC under the following conditions, and wait for 2 second or more.

-

Selector lever is in the P position

-

Do not depress brake pedal

2.

Check “Self-diagnosis result” with CONSULT-III. 

Is DTC detected?

YES

>> Go to 

PCS-73, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000005998918

1.

CHECK ACCESSORY RELAY POWER SUPPLY-1

1.

Turn ignition switch OFF.

2.

Disconnect accessory relay.

3.

Check voltage between accessory relay harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK ACCESSORY RELAY POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector.

3.

Check continuity between accessory relay harness connector and BCM harness connector.

4.

Check continuity between accessory relay harness connector and ground.

Is the inspection result normal?

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2614

BCM

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

• Harness or connectors

(Accessory relay circuit is open or 
shorted)

• BCM
• Accessory relay

(+)

(–)

Condition

Voltage (V)

(Approx.)

Accessory relay

Terminal

1

Ground

Ignition switch

OFF

0

ACC or ON

12

Accessory relay

BCM

Continuity

Terminal

Connector

Terminal

1

M71

96

Existed

Accessory relay

Ground

Continuity

Terminal

1

Not existed