Infiniti M45 (Y34). Manual - part 754

 

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Infiniti M45 (Y34). Manual - part 754

 

 

AUTOMATIC DRIVE POSITIONER

SE-37

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2. 

CHECK POWER SUPPLY CIRCUIT (BCM)

1.

Disconnect BCM connector. 

2.

Check voltage between BCM and body ground.

OK or NG

OK

>> GO TO 3.

NG

>> Check harness for open and short between BCM and fuse.

3. 

GROUND CIRCUIT INSPECTION (BCM)

Check continuity between BCM and body ground.

OK or NG

OK

>> BCM circuit is OK. Check the driver seat control unit. GO TO 4.

NG

>> Repair or replace the harness between BCM and ground. 

Connector

Terminals 

(Wire color)

Power

source

Condition

Voltage (V) 

(Approx)

(+)

(–)

M4

104 (Y/B),

105 (Y/L)

Ground

BAT 
power 
supply

Ignition 
switch 
OFF

Battery volt-

age

60 (L/OR)

Ground

ACC or 
ON
power 
supply

Ignition 
switch
ACC

Battery volt-

age

55 (B/W)

Ground

START 
power 
supply

Ignition 
switch 
START

Battery volt-

age

68 (W/B)

Ground

IGN 
power 
supply

Ignition 
switch
ON

Battery volt-

age

PIIA0258E

Connector

Terminals 

(Wire color)

Condition

Continuity

(+)

(–)

M4

56 (B)

Ground

Ignition 
switch 
OFF

Continuity should 

exist

113 (B)

Ground

Ignition 
switch
OFF

Continuity should 

exist

114 (B)

Ground

Ignition 
switch 
OFF

Continuity should 

exist

PIIA0259E

SE-38

AUTOMATIC DRIVE POSITIONER

4. 

CHECK POWER SUPPLY CIRCUIT (DRIVER SEAT CONTROL UNIT)

1.

Turn ignition switch OFF.

2.

Disconnect driver seat control unit connector.

3.

Check voltage between driver seat control unit connector B142 terminal 16A (R) and body ground.

OK or NG

OK

>> GO TO 5.

NG

>> Repair or replace harness between driver seat control

unit and fuse block (J/B) No. 1.

5. 

CHECK GROUND CIRCUIT (DRIVER SEAT CONTROL UNIT)

Check continuity between the driver seat control unit connector B142 terminal 14A (B/W), 15B (B) and body
ground.

OK or NG

OK

>> Driver seat control unit circuit is OK.

NG

>> Repair or place harness between driver seat control unit

(LCU 02) and body ground.

16A (R) – Ground

: Battery voltage

PIIA3314E

14A (B/W) – Ground

: Continuity should exist.

15B (B) – Ground

: Continuity should exist.

PIIA4471E

AUTOMATIC DRIVE POSITIONER

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CONSULT-II Function 

AIS001JT

CONSULT–II executes the following functions by combining data received and transmits command transmis-
sion via the communication line from the BCM. IVMS communication inspection, work support by part, self-
diagnosis, data monitor, and active test display.

*: For setting seat and steering functions only.

CONSULT-II BASIC OPERATION PROCEDURE

1.

Turn ignition switch OFF.

2.

Connect “CONSULT-II” and CONSULT-II CONVERTER to data
link connector.

3.

Turn ignition switch ON.

4.

Touch “START (NISSAN BASED VHCL)”.

5.

Touch “IVMS”on the “SELECT SYSTEM” screen.
If “IVMS” is not indicated, go to 

GI-38, "CONSULT-II Data Link

Connector (DLC) Circuit"

 .

IVMS diagnosis 

items

Inspection item, self-

diagnosis mode

Content

IVMS –
COMM CHECK

IVMS–
COMM DIAGNOSIS

Diagnoses a communication malfunction, inactive communication, and sleep 
malfunction in the communication line between the BCM and each LCU.

WAKE–
UP DIAGNOSIS

Diagnoses the wake-up signals output from each LCU.

AUTO DRIVE
POSITIONER

WORK SUPPORT*

Changes the setting for each function.

SELF–
DIG RESULTS

Perform the self-diagnosis.

DATA MONITOR

Displays the input data of the BCM and each LCU on real-time basis.

ACTIVE TEST

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

BCM PART NUMBER

Displays BCM part No.

PBIB1069E

MBIB0233E

PIIA0183E

SE-40

AUTOMATIC DRIVE POSITIONER

6.

Check the model specification, and touch either “WITH SUN-
ROOF” or “WITHOUT SUNROOF” on the “SELECT SYS
COND” screen.

7.

Touch “OK”. If the selection is wrong, touch “CANCEL”.

8.

Select the desired part to be diagnosed on the “SELECT TEST
ITEM” screen.

IVMS COMMUNICATION INSPECTION

IVMS contains the IVMS communication diagnosis and wake-up diagnosis.

IVMS Communication Diagnosis

The function also stores the communication malfunction records and inactive communication records, and
displays the data on the CONSULT–II screen. (malfunction record diagnosis.)

NOTE:
Sleep is a power saving function when a vehicle is stationary (all BCM related electrical equipment: OFF,
and the timer: OFF).

*: Malfunction item record

Operation Procedure

1.

Touch “IVMS-COMM CHECK” on “SELECT TEST ITEM”.

2.

Touch “IVMS-COMM DIAGNOSIS” on the “SELECT DIAG ITEM” screen.

3.

Touch “START” on the “IVMS-COMM DIAGNOSIS” screen to start the diagnosis.

4.

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

5.

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

6.

Touch “ERASE”.

7.

Carry out the communication inspection again to check that any malfunctioning item is displayed.

8.

Check the displayed items. 

Wake-up Diagnosis

The wake-up diagnosis is carried out when the BCM detects the wake-up signal from each local control unit
(LCU). When the switch shown on the screen is operated as instructed, each local control unit (LCU) outputs
the wake-up signal. If the BCM cannot detect the wake-up signal, it is judged malfunctioning. The malfunction-
ing local control unit (LCU) is displayed on the screen.

Operation Procedure

1.

Touch “IVMS-COMM CHECK” on the “SELECT TEST ITEM” screen.

2.

Touch “WAKE-UP DIAGNOSIS” on the “SELECT DIAG ITEM” screen.

3.

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

PIIA0184E

Malfunction

CONSULT–II dis-

play item

Diagnosis content

Communication 
malfunction

COMM DATA

Communicating with each LCU is judged normal when communication is normally 
completed and when both transmitted data and received data are equal. In other 
cases, it is judged malfunctioning. If the communication is inactive, no diagnosis 
result is displayed.

Inactive communi-
cation

NO RESPONSE

Communicating with each LCU is judged normal when at least 1 communication is 
normally completed within 3 trials. In other cases, it is judged malfunctioning.

Sleep malfunction

SLEEP

Check that each LCU switches to sleep mode.

Communication 
malfunction*

PAST COMM
DATA

The records when communication signal, malfunctions were continuously detected 
while the communication was normal are displayed, or a malfunction was detected 
during the sleep control in the past are displayed.

Inactive communi-
cation*

PAST NO
RESPONSE

The records when inactive communications were continuously detected while the 
communication was normal are displayed.

 

 

 

 

 

 

 

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