Infiniti G35 (V35) Sedan. Manual - part 354

UNLOCK SENSOR

DLK-77

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

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UNLOCK SENSOR

Description

INFOID:0000000000961157

Detects door lock condition of driver door.

Component Function Check

INFOID:0000000000961158

1.

CHECK FUNCTION

 With CONSULT-III

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

Is the inspection result normal?

YES

>> Unlock sensor is OK.

NO

>> Refer to 

DLK-77, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000000961159

1.

CHECK UNLOCK SENSOR POWER SUPPLY

Check signal between BCM connector and ground with oscilloscope.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 2.

2.

CHECK UNLOCK SENSOR CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM and front door lock assembly (driver side) connector.

3.

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

4.

Check continuity between BCM connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

Monitor item

Condition

DOOR STAT SW

Front door lock (driver side) LOCK: OFF

Front door lock (driver side) UNLOCK: ON

Terminals

Front door lock 

(driver side) 

condition

Voltage (V)

(Approx.)

(+)

(–)

BCM connector

Terminal

M123

119

Ground

Locked

Unlocked

0

JPMIA0011GB

BCM connector

Terminal

 Front door lock assembly (driver 

side) connector

Terminal

Continuity 

M123

119

D15

3

Existed

BCM connector

Terminal

Ground

Continuity 

M123

119

Not existed

DLK-78

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

UNLOCK SENSOR

NO

>> Repair or replace harness between BCM and front door lock assembly (driver side).

3.

CHECK UNLOCK SENSOR GROUND CIRCUIT

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

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK BCM OUTPUT SIGNAL

1.

Connect BCM harness connector.

2.

Check signal between BCM connector and ground with oscilloscope.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace BCM. 

BCS-79, "Removal and Installation"

5.

CHECK UNLOCK SENSOR 

Refer to 

DLK-78, "Component Inspection"

. 

Is the inspection result normal?

YES

>> GO TO 6.

NO

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

DLK-207, "FRONT DOOR LOCK :

Removal and Installation"

.

6.

CHECK INTERMITTENT INCIDENT 

Refer to 

GI-39, "Intermittent Incident"

.

>> INSPECTION END.

Component Inspection

INFOID:0000000000961160

1.

CHECK UNLOCK SENSOR

Check unlock sensor.

Is the inspection result normal?

YES

>> INSPECTION END.

Front door lock

assembly (driver side) connector

Terminal

Ground

Continuity 

D15

4

Existed

Terminals

Voltage (V)

(Approx.)

(+)

(–)

BCM connector

Terminal

M123

119

Ground

JPMIA0011GB

Terminal

Front door lock assembly (driver side) condition

Continuity

Front door lock assembly (driver side)

3

4

Unlock

Existed

Lock

Not existed

UNLOCK SENSOR

DLK-79

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

C

D

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F

G

H

I

J

L

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DLK

N

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NO

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

DLK-207, "FRONT DOOR LOCK : Removal

and Installation"

.

DLK-80

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

TRUNK LID OPENER SWITCH

TRUNK LID OPENER SWITCH

Description

INFOID:0000000000961161

Transmits trunk lid open signal to BCM.

Component Function Check

INFOID:0000000000961162

1.

CHECK TRUNK LID OPENER CANCEL SWITCH

Check trunk lid opener cancel switch position.

Does trunk lid opener cancel switch turn ON (CANCEL)?

Yes

>> Turn off trunk lid opener cancel switch.

No

>> GO TO 2.

2.

CHECK FUNCTION

 With CONSULT-III

Check trunk lid opener switch (“TR/BD OPEN SW”) in “Data Monitor mode with CONSULT-III.
• When trunk lid opener switch is turned to “ON”.

Is the inspection result normal?

YES

>> Trunk lid opener switch is OK.

NO

>> Refer to 

DLK-80, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000000961163

1.

CHECK TRUNK LID OPEN INPUT SIGNAL

1.

Remove Intelligent Key from key slot.

2.

Turn on trunk lid opener cancel switch.

3.

Check voltage between BCM connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 5.

2.

CHECK TRUNK LID OPENER SWITCH CIRCUIT

1.

Disconnect BCM connector.

2.

Check continuity between BCM connector and trunk lid opener switch connector.

Monitor item

Condition

TR/BD OPEN SW

Trunk lid opener switch is pressed: ON

Trunk lid opener switch is released: OFF

Terminals

Condition of trunk lid opener switch

Voltage (V)

(Approx.)

(+)

(–)

BCM

connector

Terminal 

M121

67

Ground

ON (press and hold)

0

OFF (release)

JPMIA0011GB