Nissan March K13. Manual - part 486

PCS-26

< DTC/CIRCUIT DIAGNOSIS >

[IPDM E/R (WITH I-KEY)]

B2099 IGNITION RELAY OFF STUCK

B2099 IGNITION RELAY OFF STUCK

Description

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• IPDM E/R operates the ignition relay when it receives an ignition switch ON signal from BCM via CAN com-

munication.

• Turn the ignition relay OFF by pressing the push-button ignition switch once when the vehicle speed is 4 km/

h (2.5 MPH) or less.

• Turn the ignition relay OFF with the following operation when the vehicle speed is more than 4 km/h (2.5

MPH) or when an abnormal condition occurs in CAN communication from the combination meter (Emer-
gency OFF)

- Press and hold the push-button ignition switch for 2 seconds or more.
- Press the push-button ignition switch 3 times within 1.5 seconds.
NOTE:
The ignition relay does not turn ON for 3 seconds after emergency OFF even if the push-button ignition switch
is pressed.

DTC Logic

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DTC DETECTION LOGIC

NOTE:

When IPDM E/R power supply voltage is low (Approx. 7 - 8 V for about 1 second), the “DTC: B2099” may be detected.

Diagnosis Procedure

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1.

PERFORM SELF DIAGNOSIS

1.

Turn the ignition switch ON.

2.

Erase “Self Diagnostic Result”.

3.

Turn the ignition switch OFF.

4.

Turn the ignition switch ON. Check “Self Diagnostic Result” again.

Is DTC “B2099” displayed?

YES

>> Replace IPDM E/R. Refer to 

PCS-28, "Removal and Installation"

.

NO

>> Refer to 

GI-33, "Intermittent Incident"

.

DTC

CONSULT-III dis-

play description

DTC Detection Condition

Possible causes

B2099

IGN RELAY OFF

The ignition relay OFF is detected for 1 second at ignition switch ON
(CPU monitors the status at the contact and excitation coil circuits of 
the ignition relay inside it)

Ignition relay malfunction

PCS

POWER SUPPLY AND GROUND CIRCUIT

PCS-27

< DTC/CIRCUIT DIAGNOSIS >

[IPDM E/R (WITH I-KEY)]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

POWER SUPPLY AND GROUND CIRCUIT

Diagnosis Procedure

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1.

CHECK FUSES AND FUSIBLE LINK

Check that the following IPDM E/R fuses or fusible links are not blown.

Is the fuse fusing?

YES

>> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is

blown.

NO

>> GO TO 2.

2.

CHECK POWER SUPPLY CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect IPDM E/R connector.

3.

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

Is the measurement value normal?

YES

>> GO TO 3.

NO

>> Repair the harness or connector.

3.

CHECK GROUND CIRCUIT

Check continuity between IPDM E/R harness connectors and the ground.

Does continuity exist?

YES

>> INSPECTION END

NO

>> Repair the harness or connector.

Signal name

Fuses and fusible link No.

Battery power supply

C (80 A)

D (60 A)

F (40 A)

(+)

(

−

)

Voltage

(Approx.)

IPDM E/R

Connector

Terminal

E9

1

Ground

Battery voltage

2

E11

32

IPDM E/R

Ground

Continuity

Connector

Terminal

E10

10

Existed

E14

55

PCS-28

< REMOVAL AND INSTALLATION >

[IPDM E/R (WITH I-KEY)]

IPDM E/R

REMOVAL AND INSTALLATION

IPDM E/R

Exploded View

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Removal and Installation

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CAUTION:

IPDM E/R integrated relays are not serviceable parts, and must not be removed from the unit.

REMOVAL

1.

Disconnect the battery cable from the negative terminal.

2.

Remove the IPDM E/R (1) while disengaging both pawls (A) by
spreading them.

3.

Disconnect the harness connector and then remove the IPDM
E/R.

INSTALLATION

Install in the reverse order of removal.

1.

IPDM E/R

JMMIA0357ZZ

JMMIA0358ZZ

PCS

PRECAUTIONS

PCS-29

< PRECAUTION >

[IPDM E/R (WITHOUT I-KEY)]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT 
PRE-TENSIONER"

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The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the “SRS AIR BAG” and
“SEAT BELT” of this Service Manual.

WARNING:

• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIR BAG”.

• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the

ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s)
with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly
causing serious injury.

• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the

battery, and wait at least 3 minutes before performing any service.