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Infiniti FX35 / FX45. Manual - part 192

POWER DOOR LOCK SYSTEM

BL-35

< SERVICE INFORMATION >

Terminal and Reference Value for BCM

INFOID:0000000001327797

Terminal and Reference Value for Intelligent Key Unit (With Intelligent Key System)

INFOID:0000000001327798

Termi-

nal

Wire

Color

Item

Signal

Input/

output

Condition

Voltage (V)

(Approx.)

P/B

Front door switch (Pas-
senger side)

Input

ON (door open)

→

OFF (door closed)

→

Battery voltage

P/L

Rear door switch RH

Input

ON (door open)

→

OFF (door closed)

→

Battery voltage

Power window serial link

Input/

Output

Ignition switch ON

B/W

Key switch

Input

ON (Key inserted)

→

OFF (Key re-

moved from IGN key cylinder)

Battery voltage

→

CAN H

Input/

Output

—

CAN L

Input/

Output

—

L/R

Battery power supply
(fuse)

Input

—

Battery voltage

Driver door lock actuator
(unlock)

Output

Door lock / unlock switch
(Free

→

Unlock)

→

Battery voltage

→

Ground

—

Door lock actuator (lock)

Output

Door lock / unlock switch
(Free

→

Lock)

→

Battery voltage

→

W/B

Passenger and rear doors
lock actuator (unlock)

Output

Door lock / unlock switch
(Free

→

Unlock)

→

Battery voltage

→

Ground

—

Power source (Fusible
link)

Input

—

Battery voltage

Back door switch

Input

ON (Door open)

→

OFF (Door closed)

→

Front door switch (Driver
side)

Input

ON (Door open)

→

OFF (Door closed)

→

Battery voltage

Rear door switch LH

Input

ON (Door open)

→

OFF (Door closed)

→

Battery voltage

PIIA2344J

Termi-

nal

Wire

Color

Item

Signal

Input/

output

Condition

Voltage (V)

(Approx.)

CAN H

Input/

Output

—

CAN L

Input/

Output

—

L/W

Push switch

Input

Push switch (OFF

→

ON)

→

Battery voltage

BR/W

AS unlock output signal

Output

Door lock / unlock switch
(Free

→

Unlock)

→

Battery voltage

BL-36

< SERVICE INFORMATION >

POWER DOOR LOCK SYSTEM

Work Flow

INFOID:0000000001327799

Check the symptom and customer's requests.

Understand the outline of system. Refer to

BL-22, "System Description"

According to the trouble diagnosis chart by symptom, repair or replace the cause of the malfunction.
Refer to

BL-37, "Trouble Diagnosis Chart by Symptom"

Does power door lock system operate normally?
YES: GO TO 5.
NO: GO TO 3.

INSPECTION END

CONSULT-III Function (BCM)

INFOID:0000000001327800

CONSULT-III APPLICATION ITEMS

Work Support

Data Monitor

*: With Intelligent Key system

Active Test

BCM diagnosis

test item

Check item diagnosis test mode

Content

Door lock

DATA MONITOR

Displays the input data of BCM real time.

ACTIVE TEST

Gives a drive signal to a load to check the operation.

Work item

Description

DOOR LOCK-UNLOCK SET

Select unlock mode can be changed in this mode. Selects ON-OFF of select unlock mode.

ANTI-LOCK OUT SET

Key reminder door mode can be changed in this mode. Selects ON-OFF of key reminder door
mode.

Monitor item

Content

IGN ON SW

Indicates [ON/OFF] condition of ignition switch in ON position.

KEY ON SW

Indicates [ON/OFF] condition of key switch.

CDL LOCK SW

Indicates [ON/OFF] condition of lock signal from door lock and unlock switch.

CDL UNLOCK SW

Indicates [ON/OFF] condition of unlock signal from door lock and unlock switch.

DOOR SW-DR

Indicates [ON/OFF] condition of front door switch driver side.

DOOR SW-AS

Indicates [ON/OFF] condition of front door switch passenger side.

DOOR SW-RR

Indicates [ON/OFF] condition of rear door switch RH.

DOOR SW-RL

Indicates [ON/OFF] condition of rear door switch LH.

BACK DOOR SW

Indicates [ON/OFF] condition of back door switch.

KEY CYL LK-SW

Indicates [ON/OFF] condition of lock signal from key cylinder.

KEY CYL UN-SW

Indicates [ON/OFF] condition of unlock signal from key cylinder.

KEYLESS LOCK

Indicates [ON/OFF] condition of lock signal from key fob.

KEYLESS UNLOCK

Indicates [ON/OFF] condition of unlock signal from key fob.

I-KEY LOCK*

Indicates [ON/OFF] condition of lock signal from door request switch.

I-KEY UNLOCK*

Indicates [ON/OFF] condition of unlock signal from door request switch.

POWER DOOR LOCK SYSTEM

BL-37

< SERVICE INFORMATION >

Trouble Diagnosis Chart by Symptom

INFOID:0000000001327801

Always check the “Work Flow” before troubleshooting. Refer to

BL-36, "Work Flow"

: Lock operation

: Unlock operation

: Driver side

: Except driver side

Check BCM Power Supply and Ground Circuit

INFOID:0000000001327802

CHECK FUSE AND FUSIBLE LINK

• Check 50A fusible link (letter M, located in the fuse and fusible link box).
• Check 15A fuse [No. 22, located in the fuse block (J/B)].

Test item in “DOOR LOCK”

Content

ALL LOCK

This test is able to check all door lock actuators lock operation.
These actuators lock when “ALL LOCK” on CONSULT-III screen is touched.

ALL UNLOCK

This test is able to check all door lock actuators unlock operation.
These actuators unlock when “ALL UNLOCK” on CONSULT-III screen is touched.

DR UNLOCK

This test is able to check door lock actuator (driver side) unlock operation.
This actuator unlock when “DR UNLOCK” on CONSULT-III screen is touched.

OTHER UNLOCK

This test is able to check all door lock actuators (except driver side) unlock operation.
These actuators unlock when “OTHER UNLOCK” on CONSULT-III screen is touched.

Symptom

Diagnoses service procedure

Reference

page

Key reminder door system does not operate properly.

1.Check key reminder door mode.*
*: Key reminder door mode can be changed.
First check key reminder door mode.

BL-36

2. Check BCM power supply and ground cir-
cuit

BL-37

3. Check key switch.

BL-42

4. Check door switch.

BL-38

5. Replace BCM.

BCS-13

Power door lock does not operate with door lock and unlock switch.

2. Check BCM power supply and ground cir-
cuit

BL-37

2. Check door lock and unlock switch.

BL-37

3. Replace BCM.

BCS-13

Power door lock does not operate with door key cylinder operation.
(Power door lock operate properly with door lock and unlock switch.)

1. Check front door key cylinder switch.

BL-47

2. Replace power window main switch.

–

Specific door lock actuator does not operate.

1. Check door lock actuator.

BL-45

2. Replace BCM.

BCS-13

Rear door lock actuator (LH and RH) does not operate.*
*: Only model with intelligent key system.

1. Check select unlock relay circuit.

BL-48

Select unlock does not operate.
(All other power door lock system is “OK”.)

1. Check select unlock mode.*
*: Select unlock mode can be changed.
First check select unlock mode.

BL-36

2. Replace BCM.

BCS-13

Fuel lid lock actuator does not operate.
(All door lock actuators operates properly.)

1.Check fuel lid lock actuator.

BL-46

BL-38

< SERVICE INFORMATION >

POWER DOOR LOCK SYSTEM

NOTE:
Refer to

BL-21, "Component Parts and Harness Connector Location"

OK or NG

>> GO TO 2.

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse, refer to

PG-

CHECK POWER SUPPLY CIRCUIT

Turn ignition switch OFF.

Disconnect BCM connectors.

Check voltage between BCM connectors M4 terminals 42, 55
and ground.

OK or NG

>> GO TO 3.

>> Repair or replace BCM power supply circuit.

CHECK GROUND CIRCUIT

Check continuity between BCM connectors M4 terminals 49, 52 and
ground.

OK or NG

>> Power supply and ground circuit are OK.

>> Repair or replace BCM ground circuit.

Check Door Switch

INFOID:0000000001327803

CHECK DOOR SWITCH (EXCEPT BACK DOOR SWITCH)

CHECK DOOR SWITCH INPUT SIGNAL

With CONSULT-III

Check door switches (“DOOR SW-DR”, “DOOR SW-AS”, “DOOR SW-RL” and “DOOR SW-RR”) in “DATA
MONITOR” mode with CONSULT-III.

42 (L/R) – Ground

: Battery voltage

55 (G) – Ground

: Battery voltage

PIIA6374E

49 (B) – Ground

: Continuity should exist.

52 (B) – Ground

: Continuity should exist.

PIIA6375E

Monitor item

Condition

DOOR SW-DR

→

OFF

OPEN

→

DOOR SW-AS

DOOR SW-RL

DOOR SW-RR

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