Content .. 753 754 755 756 ..

Infiniti M45 (Y34). Manual - part 755

AUTOMATIC DRIVE POSITIONER

SE-41

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

Check that any malfunction is displayed. If necessary, touch “PRINT” to keep the record.

Carry out the inspection of the malfunctioning item.

Trouble Diagnosis Chart

NOTE:

●

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

Malfunctioning

item

Display unit

CONSULT–II IVMS communication

diagnosis content

Self-diagnosis

trouble code

No.

Malfunctioning system and

reference

COMM DATA

One LCU is dis-
played.

POWER WINDOW C/U–DR "COM-
MDATA"

Replace the displayed
LCU.

DOOR MIRROR C/U–RH "COM-
MDATA"

DOOR MIRROR C/U–LH "COM-
MDATA"

POWER SEAT C/U–DR
"COMMDATA"

Multiple LCUs
are displayed.

BCM
"COMMFAIL1","COMMFAIL2"

Displays in
order of 24

→

and cycles

from 24.

Communication system A:
Refer to

SE-42

NO
RESPONSE

One LCU is dis-
played.

POWER WINDOW C/U–DR "NORE-
SPONSE"

Communication system B:
Refer to

SE-42

DOOR MIRROR C/U–RH "NORE-
SPONSE"

DOOR MIRROR C/U–LH "NORE-
SPONSE"

POWER SEAT C/U–DR
"NORESPONSE"

Multiple LCUs
are displayed.

BCM/HARNESS

Displays in
order of
25

→

8 and cycles
from 25.

Communication system C:
Refer to

SE-42

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

SE-42

SE-42

AUTOMATIC DRIVE POSITIONER

COMMUNICATION SYSTEM A

CHECK BCM

Replace the BCM with a known-good one, and carry out the communication diagnosis. Refer to

SE-40, "IVMS

Communication Diagnosis"

OK or NG

>> The harness and connector is checked, and it is normal, replace BCM.

>> GO TO 2.

CHECK LCU

Replace with the previously installed BCM.

Replace the LCU with a known-good one, and carry out the communication diagnosis. Refer to

SE-40,

"IVMS Communication Diagnosis"

OK or NG

>> The harness and connector is checked, and it is normal, replace LCU.

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

COMMUNICATION SYSTEM B

CHECK HARNESS CONNECTOR

Check terminals (at the control unit and harness) on the malfunctioning LCU for disconnection, bend, loose
connection, and other malfunctions.
OK or NG

>> GO TO 2.

>> Repair the terminals and connectors.

CHECK LCU

Replace the malfunctioning LCU with a known-good one, and carry out the communication diagnosis. Refer to

SE-40, "IVMS Communication Diagnosis"

OK or NG

>> The harness and connector is checked, and it is normal, replace LCU.

>> Repair the harness between the indicated LCU and BCM.

COMMUNICATION SYSTEM C

CHECK HARNESS CONNECTOR

Check terminals (at the control unit and harness) on BCM and LCU for disconnection, bend, loose connection,
and other malfunctions.

OK or NG

>> GO TO 2.

>> Repair the terminals and connectors.

CHECK BCM

Replace the malfunctioning BCM with a known-good one, and carry out the communication diagnosis. Refer
to

SE-40, "IVMS Communication Diagnosis"

OK or NG

>> The harness and connector is checked, and it is normal, replace BCM.

>> Repair the harness between the LCU and BCM control.

WORK SUPPORT
Display Item List

Refer to

SE-36, "SETTING CHANGE FUNCTION"

AUTOMATIC DRIVE POSITIONER

SE-43

SELF-DIAGNOSIS RESULTS
Display Item List

Malfunctioning system

Malfunction detecting condition

Diagnostic procedure

Reference page

SEAT SLIDE

When the sliding sensor pulse changes 2
times or less, while the sliding motor moves
the seat backward for 2.5 seconds, and
then forward for 2.5 seconds.

Seat sliding motor check

Seat sliding sensor check

SE-55
SE-64

SEAT RECLINING

When the reclining sensor pulse changes 2
times or less, while the reclining motor
moves the seat forward for 2.5 seconds,
and then backward for 2.5 seconds.

Seat reclining motor check

Seat reclining sensor check

SE-56
SE-65

SEAT LIFTER–FR

When the lifter sensor (front end) pulse
changes 2 times or less, while the lifter
motor (front end) moves the seat downward
for 2.5 seconds, and then upward for 2.5
seconds.

Front lifting motor check

Front end lifting sensor check

SE-57
SE-66

SEAT LIFTER–RR

When the lifter sensor (rear end) pulse
changes 2 times or less, while the lifter
motor (rear end) moves the seat downward
for 2.5 seconds, and then upward for 2.5
seconds.

Rear lifting motor check

Rear end lifting sensor check

SE-59
SE-67

STEERING TILT

,When the tilt sensor output voltage is 0.2V
or less, while the tilt motor moves the steer-
ing wheel upward for 1 second, and then
downward for 1 second.

Steering tilt motor check

Steering tilt sensor check

SE-62
SE-70

STEERING TELESCO

When the telescoping sensor output voltage
is 0.2V or less. while the telescope motor
moves the steering wheel forward for 1 sec-
ond, and then backward for 1 second,

Steering telescopic motor check

Steering telescopic sensor check

SE-60
SE-69

DOOR MIRROR–
LH·UP–DOWN

When LH door mirror sensor detects 0.2V
or lower, or 4.5V or higher, for 0.5 seconds
or more.

Mirror sensor check

GW-113

DOOR MIRROR–
LH·L–R

DOOR MIRROR–
RH·UP–DOWN

When RH door mirror sensor detects 0.2V
or lower, or 4.5V or higher, for 0.5 seconds
or more.

Mirror sensor check

GW-113

DOOR MIRROR–
RH·L–R

VEHICLE SPEED
SENSOR

When the vehicle speed is less than 7 km/h
(4 MPH) for 15 seconds after the diagnosis
for the seat and steering wheel is com-
pleted.

Vehicle speed sensor check

SE-74

SE-44

AUTOMATIC DRIVE POSITIONER

Auto Drive Positioner Incident Memory

It stores the incident records of the input/output system related to the auto driving position system, and dis-
plays them on the CONSULT–II screen.

DATA MONITOR
Display Item List

Malfunctioning system

Malfunction detecting condition

Diagnostic procedure

Reference page

SEAT SLIDE
"PAST OUTPUT FAIL"

If the following conditions are met, the
seat sliding output system is judged mal-
functioning. If there is no manual input in
the past or any auto operation output, and
then within 2.5 seconds the sliding sensor
receives an input signal showing that the
seat has slid by 6 mm or more.

Seat sliding motor check

Seat sliding sensor check

SE-55
SE-78

SEAT RECLINING
"PAST OUTPUT FAIL"

If the following conditions are met, the
seat reclining output system is judged
malfunctioning. If there is no manual input
in the past nor any auto operation output,
and then within 2.5 seconds the reclining
sensor receives an input signal showing
that the seat has reclined by 1

or more.

Seat reclining motor check

Seat reclining sensor check

SE-56
SE-80

STEERING TILT
"PAST OUTPUT FAIL"

If the following conditions are met, the
steering tilt output system is judged mal-
functioning. If there is no manual input in
the past nor any auto operation output,
and then within 2.5 seconds the steering
tilt sensor receives an input signal show-
ing that the steering wheel is tilted by 1

more.

Steering tilt motor check

Steering tilt sensor check

SE-62
SE-70

DETENTION SW
"PAST INPUT FAIL"

With the A/T selector lever in P-position
(Detention switch

OFF), if the vehicle

speed of 7 km/h (4 MPH) or higher was
input for at least 2 seconds, the detention
switch input system is judged malfunction-
ing.

Detention switch check

SE-68

TELESCO SENSOR
"PAST"

If the voltage value detected by the tele-
scopic sensor was 0.1V or less, or 4.9 V
or more, the telescoping sensor is judged
malfunctioning.

steering telescopic sensor

check

SE-69

TILT SENSOR
"PAST"

If the voltage value detected by the tilt
sensor was 0.1V or less, or 4.9 V or more,
the tilt sensor is judged malfunctioning.

steering tilt sensor check

SE-70

Monitor item [OPERATION or UNIT]

Contents

SLIDE SW–FR

"ON/OFF"

ON/OFF status judged from the sliding switch (FR) signal is displayed.

SLIDE SW–RR

"ON/OFF"

ON/OFF status judged from the sliding switch (RR) signal is displayed.

RECLIN SW–FR

"ON/OFF"

ON/OFF status judged from the reclining switch (FR) signal is displayed.

RECLIN SW–RR

"ON/OFF"

ON/OFF status judged from the reclining switch (RR) signal is displayed.

LIFT FR SW–UP

"ON/OFF"

ON/OFF status judged from the FR lifter switch (UP) signal is displayed.

LIFT FR SW–DN

"ON/OFF"

ON/OFF status judged from the FR lifter switch (DOWN) signal is displayed.

LIFT RR SW–UP

"ON/OFF"

ON/OFF status judged from the RR lifter switch (UP) signal is displayed.

LIFT RR SW–DN

"ON/OFF"

ON/OFF status judged from the RR lifter switch (DOWN) signal is displayed.

MIR CON SW–UP

"ON/OFF"

ON/OFF status judged from the door mirror remote control switch (UP) signal is
displayed.

MIR CON SW–DN

"ON/OFF"

ON/OFF status judged from the door mirror remote control switch (DOWN) signal
is displayed.

MIR CON SW–RH

"ON/OFF"

ON/OFF status judged from the door mirror remote control switch (RIGHT) signal
is displayed.

Content .. 753 754 755 756 ..