Infiniti Q45. Manual - part 192

POWER DOOR LOCK SYSTEM

BL-37

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BL

signal. If BCM cannot detect a wake-up signal, it is judged malfunctioning. The malfunctioning local control
unit (LCU) is displayed on the screen.

NOTE:
If any unspecified switch is operated, "Switch data not match" is displayed as a malfunctioning system.

Operation Procedure

1.

Touch "IVMS-COMM CHECK" on "SELECT TEST ITEM" screen.

2.

Touch "WAKE-UP DIAGNOSIS" on "SELECT DIAG ITEM" screen.

3.

Touch "START" on "WAKE-UP DIAGNOSIS" screen to start the diagnosis.

4.

Touch "NEXT" to select the local control unit (LCU) to be diagnosed.

5.

Make sure that any malfunction is displayed. If necessary, touch "PRINT" to record.

6.

Perform the inspection to the malfunctioning item.

Malfunction Code Table

NOTE:

●

For a specific local control unit (LCU), either "PAST COMM DATA" or "PAST NO RESPONSE" may be displayed instead of the
above results. This is caused by the data record, so erase the records.

Malfunctioning 

item

Display unit

CONSULT-II IVMS communication diag-

nosis content

Self-diagnosis  

trouble code 

No.

Malfunctioning system and 

reference

COMM DATA

One LCU is dis-
played.

POWER WINDOW  C/U-DR 
"COMM DATA"

24

Replace the displayed 
LCU.

DOOR MIRROR  C/U-RH 
"COMM DATA"

27

DOOR MIRROR  C/U-LH 
"COMM DATA"

37

POWER SEAT  C/U-DR
"COMM DATA"

47

Multiple LCUs 
are displayed.

BCM
"COMM FAIL1" ,"COMM FAIL2"

Displays in 
order of 24 

→

27

→

37

→

47

→

and cycles 

from 24.

Communication system A: 
Refer to 

BL-41, "COMMU-

NICATION SYSTEM A"

 .

NO
RESPONSE

One LCU is dis-
played.

POWER WINDOW C/U-DR 
"NO RESPONSE"

25

Communication system B: 
Refer to 

BL-41, "COMMU-

NICATION SYSTEM B"

 .

DOOR MIRROR C/U-RH 
"NO RESPONSE"

28

DOOR MIRROR C/U-LH 
"NO RESPONSE"

38

POWER SEAT C/U-DR
"NO RESPONSE"

48

Multiple LCUs 
are displayed.

BCM/HARNESS

Displays in 
order of 
25

→

28

→

38

→

4

8 and cycles 
from 25.

Communication system C: 
Refer to 

BL-41, "COMMU-

NICATION SYSTEM C"

 .

SLEEP malfunc-
tion

One LCU is dis-
played.

POWER WINDOW C/U-DR "SLEEP"

No self-diagno-
sis function

Replace the displayed 
LCU.

DOOR MIRROR C/U-RH 
"SLEEP"

DOOR MIRROR C/U-LH 
"SLEEP"

POWER SEAT C/U-DR 
"SLEEP"

Multiple LCUs 
are displayed.

All the above control units are displayed.

No self-diagno-
sis function

Communication system A: 
Refer to 

BL-41, "COMMU-

NICATION SYSTEM A"

 .

BL-38

POWER DOOR LOCK SYSTEM

(The display only shows the incident records, they are not malfunctions caused during the diagnosis. One possible cause is that an
irreproducible incident symptom occurred.)

●

Follow the steps below to erase the memory 
Perform either disconnect BCM battery power supply or erase memory with CONSULT-II.

●

With the battery connected, if the local control unit (LCU) connector is disconnected for approximately 1 minute, the BCM stores
"NO RESPONSE" record.

SELF-DIAGNOSIS RESULTS
Operation Procedure

1.

Touch “DOOR LOCK” on the “SELECT TEST ITEM” screen.

2.

Touch “SELF-DIAG RESULTS” on the “SELECT DIAG MODE” screen.

3.

Touch “START” on the “SELF DIAG RESULTS” screen.

4.

Door lock actuator automatically locks/unlocks all the doors before the door lock actuator self-diagnosis
start.

5.

After the diagnosis is completed, the malfunctioning system name is displayed.

6.

When the malfunctioning items are displayed, touch “PRINT” to keep the records.

7.

Touch “ERASE”.

8.

Perform the self-diagnosis again to make sure that any malfunctioning item is displayed.

9.

Perform out the inspection to the displayed items. If “No failure” is displayed, the malfunctioning item
recorded at first shall be checked.

Self-Diagnostic Result List

DATA MONITOR

ACTIVE TEST

Malfunctioning system.

Malfunction detecting condition

DOOR LOCK MOTOR-DR

The circuit for the driver side door lock actuator/unlock sensor is malfunctioning.

DOOR LOCK MOTOR-AS

The circuit for the passenger side door lock actuator/unlock sensor is malfunctioning.

DOOR LOCK MOTOR-RR/RH

The circuit for the rear RH side door lock actuator/unlock sensor is malfunctioning.

DOOR LOCK MOTOR-RR/LH

The circuit for the rear LH side door lock actuator/unlock sensor is malfunctioning.

NO DTC IS DETECTED/FUR-
THER TESTING MAY BE 
REQUIRED

No malfunction in the above items.

Monitored item

Description

IGN ON SW

Indicates [ON/OFF] condition of ignition switch.

IGN KEY SW

Indicates [ON/OFF] condition of electronic key switch.

DOOR LK SW-LK

Indicates [ON/OFF] condition of lock signal from lock/unlock switch front LH.

DOOR LK SW-UN

Indicates [ON/OFF] condition of unlock signal from lock/unlock switch front LH.

LOCK SIG-DR

Indicates [ON/OFF] condition of driver door unlock signal from door unlock sensor.

LOCK SIG-AS

Indicates [ON/OFF] condition of passenger door unlock signal from door unlock sensor.

LOCK SIG-RR/RH

Indicates [ON/OFF] condition of rear RH door unlock signal from door unlock sensor.

LOCK SIG-RR/LH

Indicates [ON/OFF] condition of rear LH door unlock signal from door unlock sensor.

DOOR SW-DR

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

DOOR SW-AS

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

KEY CYL UN-DR

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

KEY CYL LK-DR

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

MAIN/S LOCK AS

Indicates [ON/OFF] condition of lock signal from lock/unlock switch front RH

MAIN/S UNLK AS

Indicates [ON/OFF] condition of unlock signal from lock/unlock switch front RH

Test item.

Malfunction detecting condition

DR LOCK MTR-ALL

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

POWER DOOR LOCK SYSTEM

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On Board Diagnosis

NIS000U2

ON BOARD DIAGNOSTIC RESULTS INDICATOR LAMP
Front map lamps and step lamps (all seats) act as the indicators for the on board diagnosis.

DIAGNOSIS ITEM

COMMUNICATION DIAGNOSIS

Check the communication between BCM and local control unit (LCU).

How To Perform Communication Diagnosis

Description

In this mode, a malfunction code is indicated by the number of flashes from the map lamps and step lamps as
shown below:

After indicator lamp turns on for 2 seconds then off for 2 seconds, it flashes [cycling ON (0.5 sec.)/OFF (0.5
sec.)] to indicate a malfunction code of the first digit. Then, 1.5 second after indicator lamp turns off, it again
flashes [cycling ON (0.5 sec.)/OFF (0.5 sec.)] to indicate a malfunction code of the second digit.
For example, the indicator lamp goes on and off for 0.5 seconds twice and after 1.5 seconds, it goes on and off
for 0.5 seconds four times. This indicates malfunction code of driver door control unit communication.

Diagnosis item

Content

IVMS communication diagnosis

Diagnosis any malfunction or inability of communication between BCM and LCU (DATA 
LINE A-3).

Switch monitor

Monitoring conditions of switches connected to BCM, LCU and Door control unit.

Power door lock system self-diagnosis

Diagnose malfunctions in the each door lock actuator system.

PIIA3358E

SIIA0410E

BL-40

POWER DOOR LOCK SYSTEM

Malfunction Code Table

NOTE:

●

For a specific local control unit (LCU), either “PAST COMM DATA” or “PAST NO RESPONSE” may be displayed instead of the
above results. This is caused by the data record, so erase the records.
(The display only shows the error records, they are not malfunctions caused during the diagnosis. One possible cause is that an
reproducible symptom occurred.)

●

Follow the steps below to erase the memory 
Carry out either disconnect BCM battery power supply or erase memory with CONSULT-II.

●

With the battery connected, if the local control unit (LCU) connector is disconnected and left for approximately 1 minute, the BCM
stores “NO RESPONSE” record.

Cancel of Communication Diagnosis

If one of the following conditions is satisfied, the communication diagnosis is cancelled.

●

Turn ignition switch OFF.

●

Drive the vehicle more than 7 km/h (4 MPH).

●

Ten minutes have passed since the diagnosis result indication start without any diagnosis cancel opera-
tion.

Malfunctioning 

item

Display unit

CONSULT-II IVMS communication diag-

nosis content

Self-diagnosis  

trouble code 

No.

Malfunctioning system and 

reference

COMM DATA

One LCU is dis-
played.

POWER WINDOW C/U-DR
“COMM DATA”

24

Replace the displayed 
LCU.

DOOR MIRROR C/U-RH
“COMM DATA”

27

DOOR MIRROR C/U-LH
“COMM DATA”

37

POWER SEAT C/U-DR
“COMM DATA”

47

Multiple LCUs 
are displayed.

BCM
“COMM FAIL1”, “COMM FAIL2”

Displays in 
order of 24 

→

27

→

37

→

47

→

and cycles 

from 24.

Communication system A: 
Refer to 

BL-41, "COMMU-

NICATION SYSTEM A"

 .

NO
RESPONSE

One LCU is dis-
played.

POWER WINDOW C/U-DR
“NO RESPONSE”

25

Communication system B: 
Refer to 

BL-41, "COMMU-

NICATION SYSTEM B"

 .

DOOR MIRROR C/U-RH
“NO RESPONSE”

28

DOOR MIRROR C/U-LH
“NO RESPONSE”

38

POWER SEAT C/U-DR
“NO RESPONSE”

48

Multiple LCUs 
are displayed.

BCM/HARNESS

Displays in 
order of 
25

→

28

→

38

→

4

8 and cycles 
from 25.

Communication system C: 
Refer to 

BL-41, "COMMU-

NICATION SYSTEM C"

 .

SLEEP malfunc-
tion

One LCU is dis-
played.

POWER WINDOW C/U-DR "SLEEP"

No self-diagno-
sis function

Replace the displayed 
LCU.

DOOR MIRROR C/U-RH 
“SLEEP”

DOOR MIRROR C/U-LH 
“SLEEP”

POWER SEAT C/U-DR 
“SLEEP”

Multiple LCUs 
are displayed.

All the above control units are displayed.

No self-diagno-
sis function

Communication system A: 
Refer to 

BL-41, "COMMU-

NICATION SYSTEM A"

 .