Infiniti Q45. Manual - part 823

AUTOMATIC DRIVE POSITIONER

SE-47

Diagnosis Trouble Code Indication Example

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. This is caused by the data record, 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
irreproducible 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.

Cancel Of Communication Diagnosis

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

●

When the ignition switch is turned OFF.

●

The vehicle speed becomes 7 km/h (4 MPH) or higher.

●

Ten minutes have passed since the diagnostic result indication start without no diagnosis cancel opera-
tion.

SIIA0410E

Malfunctioning

item

Display unit

CONSULT–II IVMS communication

diagnosis content

Self-diagnosis

trouble code No.

Malfunctioning system

and reference

COMM DATA

One LCU is
displayed.

POWER WINDOW C/U–DR "COMMDATA"

Replace the displayed
LCU.

DOOR MIRROR C/U–RH "COMMDATA"

DOOR MIRROR C/U–LH "COMMDATA"

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-48

NO
RESPONSE

One LCU is
displayed.

POWER WINDOW C/U–DR "NORESPONSE"

Communication system
B: Refer to

SE-48

DOOR MIRROR C/U–RH "NORESPONSE"

DOOR MIRROR C/U–LH "NORESPONSE"

POWER SEAT C/U–DR "NORESPONSE"

Multiple LCUs
are displayed

BCM/HARNESS

Displays in order of
25

→

and cycles from 25.

Communication system
C: Refer to

SE-48

SLEEP
malfunction

One LCU is
displayed.

POWER WINDOW C/U–DR "SLEEP"

No self-diagnosis
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-diagnosis
function

Communication system
A: Refer to

SE-48

SE-48

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-46, "COM-

MUNICATION DIAGNOSIS"

OK or NG

>> 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-46,

"COMMUNICATION DIAGNOSIS"

OK or NG

>> Replace LCU

>> Repair the 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, poor
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-46, "COMMUNICATION DIAGNOSIS"

OK or NG

>> 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, poor 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-46, "COMMUNICATION DIAGNOSIS"

OK or NG

>> Replace BCM

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

AUTOMATIC DRIVE POSITIONER

SE-49

SWITCH MONITOR

Perform the diagnosis for the switch system input to each control unit.

Operation Procedure

Diagnosis Result Display

●

Detects the status change (switch ON/OFF operation) of the switch to be checked, and turns on/off the
indicator lamps (the map lamp and step lamp). Also sounds the buzzer (the key remainder and light
remainder) for 0.5 seconds.

●

If a malfunction is detected, no indicator lamp and buzzer react.

Diagnosis Item

The status of the switch (except the ignition switch, interior lamp switch, and map lamp switch) input to each
control unit can be monitored.

PIIA2869E

PIIA0185E

Control unit

Item

BCM

Detention switch

Steering wheel position switch (telescopic switch and tilt switch)

Seat memory switch (memory switch 1, memory switch 2, and setting switch)

Driver door switch

Door mirror remote control switch

Driver seat control unit

Slide switch (FR/RR)

Reclining switch (FR/RR)

Front end lifting switch (UP/DOWN)

Rear end lifting switch (UP/DOWN)

SE-50

AUTOMATIC DRIVE POSITIONER

Cancel Of Switch Monitor

If one of the following conditions is satisfied, the switch monitor is cancelled.

●

When the ignition switch is turned OFF.

●

The vehicle speed becomes 7 km/h (4 MPH) or higher.

ON BOARD DIAGNOSIS FOR AUTOMATIC DRIVE POSITIONER

Check the operations of the auto drive positioner system.

*1: If no malfunction is indicated, On board diagnosis for automatic drive positioner will end after the vehicle
speed sensor diagnosis is performed.
*2: Diagnosis ends after self-diagnostic results have been indicated for 10 minutes if left unattended.

PIIA4472E

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