Infiniti M45 (Y34). Manual - part 231

 

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Infiniti M45 (Y34). Manual - part 231

 

 

VEHICLE SECURITY (THEFT WARNING) SYSTEM

BL-149

C

D

E

F

G

H

J

K

L

M

A

B

BL

4. 

CHECK DOOR UNLOCK SENSOR GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect door lock actuator connector.

3.

Check continuity between each door control unit and ground.

OK or NG

OK

>> Replace door lock actuator (door unlock sensor).

NG

>> Repair or replace malfunctioning harness.

 Connector

Terminal (wire color)

Continuity

Driver side: D11

 4 (B) 

 ground

Should exist

Passenger side: D41

Rear LH: D61

Rear RH: D81

PIIA2859E

BL-150

VEHICLE SECURITY (THEFT WARNING) SYSTEM

Diagnostic Procedure 4

AIS001F2

4–1 CHECK DOOR KEY CYLINDER LOCK SWITCH

1. 

CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL (LOCK SIGNAL)

 With CONSULT

II

Check front door key cylinder switch (driver side) “KEY CYL LK-DR” in “DATA MONITOR” mode with CON-
SULT

II.

 Without CONSULT

II

Check voltage between driver door control unit (LCU01) connector
and ground.

OK or NG

OK

>> Front door key cylinder switch (driver side) (lock) is OK.

NG

>> GO TO 2.

“KEY CYL LK-DR” should be ON when key inserted in 
door key cylinder was turned to lock.

PIIA0350E

Connector

Terminal (wire color)

Key position

Voltage (V)

(+)

(–)

D8

10(GY)

Ground

Neutral/Unlock

Approx.5

Lock

0

PIIA2805E

VEHICLE SECURITY (THEFT WARNING) SYSTEM

BL-151

C

D

E

F

G

H

J

K

L

M

A

B

BL

2. 

CHECK DOOR KEY CYLINDER SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect front door key cylinder switch (driver side) connector.

3.

Check continuity between front door key cylinder switch (driver side) terminals.

OK or NG

OK

>> Check the following.

Front door key cylinder switch (driver side) ground cir-
cuit

Harness for open or short between driver door control
unit (LCU01) and front door key cylinder switch (driver
side)

NG

>> Replace front door key cylinder switch (driver side).

Connector

Terminal

Condition

Continuity

D12

 3

Neutral/Unlock

No

Lock

Yes

PIIB0829E

BL-152

VEHICLE SECURITY (THEFT WARNING) SYSTEM

4–2 CHECK DOOR KEY CYLINDER UNLOCK SWITCH

1. 

CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL (UNLOCK SIGNAL)

 With CONSULT

II

Check front door key cylinder switch (driver side) “KEY CYL UN-DR” in “DATA MONITOR” mode with CON-
SULT

II.

 Without CONSULT

II

Check voltage between driver door control unit (LCU01) connector
and ground.

OK or NG

OK

>> Front door key cylinder switch (driver side) (unlock) is

OK.

NG

>> GO TO 2.

“KEY CYL UN

DR” should be ON when key inserted in 

driver door key cylinder was turned to unlock.

PIIA0353E

Connector

Terminal (wire color)

Key position

Voltage (V)

(+)

(–)

D8

9(PU/W)

Ground

Neutral/Lock

Approx.5

Unlock

0

PIIA2854E

 

 

 

 

 

 

 

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