Infiniti EX35. Manual - part 468

DLK-86

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

BACK DOOR REQUEST SWITCH

YES

>> Replace BCM. Refer to 

BCS-84, "Exploded View"

.

NO

>> Repair or replace harness.

3.

CHECK BACK DOOR OPENER REQUEST SWITCH GROUND CIRCUIT

Check continuity between back door opener request switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK BACK DOOR OPENER REQUEST SWITCH

Refer to 

DLK-86, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace back door opener request switch assembly. Refer to 

EXT-48, "Removal and Installation"

.

5.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-38, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000003728909

1.

CHECK BACK DOOR OPENER REQUEST SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect back door opener.

3.

Check back door opener request switch assembly terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace back door opener request switch assembly. Refer to 

EXT-48, "Removal and Installation"

.

Back door opener request switch assembly

Ground

Continuity 

Connector

Terminal

D116

2

Existed

Back door opener request switch

Back door opener request switch condition

Continuity 

Terminal

1

2

Pressed

Existed

Released

Not existed

UNLOCK SENSOR

DLK-87

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

C

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G

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UNLOCK SENSOR

Description

INFOID:0000000003728910

Detects door lock condition of driver door.

Component Function Check

INFOID:0000000003728911

1.

CHECK FUNCTION

Check unlock sensor (“DOOR STAT SW”) in “Data Monitor” mode.

Is the inspection result normal?

YES

>> Unlock sensor is OK.

NO

>> Refer to 

DLK-87, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000003728912

1.

CHECK BCM OUTPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect front door lock assembly (driver side) connector.

3.

Check signal between front door lock assembly (driver side) harness connector and ground with oscillo-
scope.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK UNLOCK SENSOR CIRCUIT

1.

Disconnect BCM connector.

2.

Check continuity between BCM harness connector and front door lock assembly (driver side) harness
connector.

3.

Check continuity between BCM harness connector and ground.

Monitor item

Condition

DOOR STAT SW

Front door lock (driver side) LOCK: OFF

Front door lock (driver side) UNLOCK: ON

(+)

(–)

Signal

(Reference value)

Front door lock assembly (driver side)

Connector

Terminal

D15

3

Ground

JPMIA0012GB

BCM

Front door lock assembly (driver side)

Continuity 

Connector

Terminal

Connector

Terminal

M123

119

D15

3

Existed

BCM

Ground

Continuity 

Connector

Terminal

M123

119

Not existed

DLK-88

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

UNLOCK SENSOR

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-84, "Removal and Installation"

.

NO

>> Repair or replace harness.

3.

CHECK UNLOCK SENSOR GROUND CIRCUIT

Check continuity between front door lock assembly (driver side) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK UNLOCK SENSOR 

Refer to 

DLK-88, "Component Inspection"

. 

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace front door lock assembly (driver side). Refer to 

DLK-244, "DOOR LOCK : Removal and

Installation"

.

5.

CHECK INTERMITTENT INCIDENT 

Refer to 

GI-38, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000003728913

1.

CHECK UNLOCK SENSOR

1.

Turn ignition switch OFF.

2.

Disconnect front door lock assembly (driver side) (unlock sensor) connector.

3.

Check front door lock assembly (driver side) (unlock sensor) terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace front lock assembly (driver side) (unlock sensor). Refer to 

DLK-244, "DOOR LOCK :

Removal and Installation"

.

Front door lock assembly (driver side)

Ground

Continuity 

Connector

Terminal

D15

4

Existed

Front door lock assembly (driver side) (unlock sensor)

Front door lock assembly (driver side) (unlock 

sensor) condition

Continuity

Terminal

3

4

Unlock

Existed

Lock

Not existed

OUTSIDE KEY ANTENNA

DLK-89

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

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OUTSIDE KEY ANTENNA

Description

INFOID:0000000003728914

Detects whether Intelligent Key is outside the vehicle.
Integrated in front outside handle (driver side, passenger side) and installed in rear bumper.

Component Function Check

INFOID:0000000003728915

1.

CHECK DOOR REQUEST SWITCH

Check door request switch. Refer to  

DLK-83, "Component Function Check"

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Check door request switch. Refer to 

DLK-83, "Diagnosis Procedure"

.

2.

CHECK FUNCTION

Be sure that Intelligent Key is in each outside key antenna detection area.

Does door lock/unlock when each request switch is pressed?

YES

>> Outside key antenna is OK.

NO

>> Refer to 

DLK-89, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000003728916

1.

CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 1

1.

Turn ignition switch OFF.

2.

Check signal between BCM harness connector and ground with oscilloscope.

Is the inspection result normal? 

YES

>> Replace BCM. Refer to 

BCS-84, "Removal and Installation"

NO

>> GO TO 2.

2.

CHECK OUTSIDE KEY ANTENNA CIRCUIT

1.

Disconnect BCM connector and malfunctioning front outside key antenna connector or outside key
antenna (rear bumper) connector.

2.

Check continuity between BCM harness connector and malfunctioning outside key antenna harness con-
nector.

(+)

(–)

Condition

Signal

(Reference value)

BCM

Connector

Terminal

M122

Driver side

76, 77

Ground

Request switch 

is pushed

When Intelligent Key 
is in the antenna de-
tection area.

Passenger 

side

74, 75

M121

Back door

38, 39

When Intelligent Key 
is not in the antenna 
detection area.

JMKIA0062GB

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