Infiniti F50. Manual - part 231

VEHICLE SECURITY (THEFT WARNING) SYSTEM

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2. 

CHECK DOOR SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect door switch and BCM connector.

3.

Check continuity between rear door switch connector D62 (rear LH), D82 (rear RH) terminal 1 (W) and
BCM connector M4 (rear LH), B4 (rear RH) terminal 33 (W), 143 (W/L).

4.

Check continuity between rear door switch connector D62, D82
terminal 1(W) and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace harness.

3. 

CHECK REAR DOOR SWITCH GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect rear door switch and BCM connector.

3.

Check continuity between rear door switch connector D62 (rear LH), D82 (rear RH) terminal 2 (B) and
ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace harness.

Rear door switch LH

1 (W) – 33 (W)

: Continuity should exist.

Rear door switch RH

1 (W) – 143 (W/L)

: Continuity should exist.

Each door switch

1 (W) – Ground

: Continuity should not exist.

PIIB0200E

2 (B) – Ground

: Continuity should exist.

PIIB0201E

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VEHICLE SECURITY (THEFT WARNING) SYSTEM

4. 

CHECK FRONT DOOR SWITCH

Check continuity between rear door switch connector D62 (rear LH),
D82 (rear RH) terminal 1 and  2.

OK or NG

OK

>> Door lock assembly rear is OK.

NG

>> Replace malfunction door lock assembly rear (door

switch).

1 – 3 CHECK HOOD SWITCH

1. 

CHECK HOOD SWITCH INPUT SIGNAL

 With CONSULT-II

Check “HOOD SWITCH” in “DATA MONITOR” mode with CON-
SULT

−

II.

 Without CONSULT-II

Check hood switch in Switch monitor mode.
Refer to Remote keyless entry system 

BL-80, "SWITCH MONITOR"

.

OK or NG

OK

>> Hood switch is OK.

NG

>> GO TO 2.

2. 

CHECK HOOD SWITCH CONDITION

Check hood switch and hood fitting condition.

OK or NG

OK

>> GO TO 3.

NG

>> Adjust installation of hood switch.

3. 

CHECK HOOD SWITCH

1.

Turn ignition switch “OFF”.

2.

Disconnect hood switch connector.

3.

Check continuity between hood switch terminals.

OK or NG?

OK

>> Check the following. Repair or replace following item, 

when there is a malfunction.

●

Hood switch ground circuit

●

Harness for open or short between hood switch and
BCM

NG

>> Replace hood switch.

Terminal

Rear door

Continuity

1 – 2

Rear door close

NO

Rear door open

YES

PIIB0183E

When hood is open

: HOOD SW ON

When hood is closed

: HOOD SW OFF

PIIA0343E

Connector

Terminal

Condition

Continuity

E54

1 

−

 2

Closed

No

Open

Yes

PIIA2800E

VEHICLE SECURITY (THEFT WARNING) SYSTEM

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1 – 4 CHECK TRUNK LID LOCK SWITCH

1. 

CHECK TRUNK ROOM LAMP SWITCH INPUT SIGNAL

 With CONSULT-II

Check “TRUNK SWITCH” in “DATA MONITOR” mode with CONSULT

−

II.

 Without CONSULT-II

Check trunk lid lock switch in Switch monitor mode.
Refer to Remote keyless entry system 

BL-80, "SWITCH MONITOR"

.

OK or NG

OK

>> Trunk lid lock switch is OK.

NG

>> GO TO 2.

2. 

CHECK TRUNK LID LOCK SWITCH

1.

Turn ignition switch “OFF”.

2.

Disconnect trunk lid lock switch connector.

3.

Check continuity between trunk lid lock switch terminals.

( ): With auto trunk models

OK or NG

OK

>> Check the following. Repair or replace following item, 

when there is a malfunction.

●

Trunk lid lock switch ground circuit

●

Harness for open or short between trunk lid lock
switch and BCM

NG

>> Replace trunk lid lock switch.

Diagnostic Procedure 2

EIS003QC

CHECK SECURITY INDICATOR LAMP

1. 

INDICATOR LAMP ACTIVE TEST

With CONSULT-II

Check “INDICATOR LAMP” in “ACTIVE TEST” mode with CONSULT-II.

NOTE:
If CONSULT-II is not available, skip this procedure and go to the
next procedure.
OK or NG

OK

>> Security indicator lamp is OK.

NG

>> GO TO 2.

When trunk lid is open

: TRUNK SW ON

When trunk lid is closed

: TRUNK SW OFF

PIIA0345E

Connector

Terminal

Condition

Continuity

B74

(B312)

1 

−

 2

Closed

No

Open

Yes

PIIA3073E

Perform operation shown on display.
Indicator lamp should illuminate.

PIIA0347E

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VEHICLE SECURITY (THEFT WARNING) SYSTEM

2. 

CHECK INDICATOR LAMP

1.

Turn ignition switch “OFF”.

2.

Check indicator lamp condition.

OK or NG

OK

>> GO TO 3.

NG

>> Replace indicator lamp.

3. 

CHECK POWER SUPPLY CIRCUIT FOR INDICATOR LAMP

1.

Disconnect multifunction switch (security indicator lamp) connector.

2.

Check voltage between multifunction switch (security indicator lamp) connector M83 terminal 20 (Y/G)
and ground.

OK or NG

OK

>> Check harness for open or short between multifunction

switch (security indicator lamp) and BCM.

NG

>> Check the following.

●

10A fuse [No. 6, located in fuse block (J/B) No. 1]

●

Harness for open or short between multifunction
switch (security indicator lamp) and fuse.

Diagnostic Procedure 3

EIS003QD

CHECK DOOR UNLOCK SENSOR

1. 

CHECK DOOR UNLOCK SENSOR INPUT SIGNAL

 With CONSULT-II

Check door unlock sensor “LOCK SIG” in “DATA MONITOR” mode with CONSULT-II.

 Without CONSULT-II

Check door lock knob operation in Switch monitor mode.
Refer to Remote keyless entry system 

BL-80, "SWITCH MONITOR"

.

OK or NG

OK

>> Door unlock sensor is OK.

NG

>> GO TO 2. (Diagnose the malfunctioning door parts in

accordance with the following charts.)

Battery voltage should exist.

PIIA0380E

When door is locked

: LOCK SIG  LOCK

When door is unlocked

: LOCK SIG UNLK

PIIA2803E