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Infiniti QX56 (JA60). Manual - part 102

BCS

DIAGNOSIS SYSTEM (BCM)

BCS-27

< FUNCTION DIAGNOSIS >

[BCM]

*: Each lamp switch is in ON position.

TRUNK
TRUNK : CONSULT-III Function (BCM - TRUNK)

INFOID:0000000005146409

DATA MONITOR

ACTIVE TEST

RETAINED PWR
RETAINED PWR : CONSULT-III Function (BCM - RETAINED PWR)

INFOID:0000000005369877

DATA MONITOR

ACTIVE TEST

WORK SUPPORT

SIGNAL BUFFER

Test Item

Operation

Description

BATTERY SAVER

OFF

Cuts the interior room lamp power supply to turn interior room lamps OFF.

Outputs the interior room lamp power supply to turn interior room lamps ON.*

Monitor Item

[Unit]

Contents

IGN ON SW [ON/OFF]

Indicates condition of ignition switch in ON position

I-KEY TRUNK [ON/OFF]

Indicates condition of Intelligent Key back door opening operation

TRUNK OPNR SW [ON/OFF]

Indicates condition of back door opener switch.

VEHICLE SPEED [ON/OFF]

Indicates condition of vehicle speed signal from combination meter

Test Item

Description

TRUNK/BACK DOOR

This test is able to check back door open operation.
Back door open when “OPEN” on CONSULT-III screen is touched.

Monitor Item

[Unit]

Description

IGN ON SW [ON/OFF]

Indicates condition of ignition switch.

DOOR SW-DR [ON/OFF]

Indicates condition of front door switch LH.

DOOR SW-AS [ON/OFF]

Indicates condition of front door switch RH.

Test Item

Description

RETAINED PWR

This test is able to supply RAP signal (power) from BCM (body control module) to power window
system and power sunroof system (if equipped). Those systems can be operated when turning on
“RETAINED PWR” on CONSULT-III screen even if the ignition switch is turned OFF.
NOTE:
During this test, CONSULT-III can be operated with ignition switch in OFF position. “RETAINED
PWR” should be turned “ON” or “OFF” on CONSULT-III screen when ignition switch is ON. Then
turn ignition switch OFF to check retained power operation. CONSULT-III might be stuck if “RE-
TAINED PWR” is turned “ON” or “OFF” on CONSULT-III screen when ignition switch is OFF.

Work item

Description

RETAINED PWR SET

RAP signal’s power supply period can be changed by mode setting. Selects RAP signal’s power
supply period between three steps
• MODE1 (45 sec.)/MODE2 (OFF)/MODE 3 (2 min.).

BCS-28

< FUNCTION DIAGNOSIS >

[BCM]

DIAGNOSIS SYSTEM (BCM)

SIGNAL BUFFER : CONSULT-III Function (BCM - SIGNAL BUFFER)

INFOID:0000000005146411

DATA MONITOR

ACTIVE TEST

AIR PRESSURE MONITOR
AIR PRESSURE MONITOR : Diagnosis Description

INFOID:0000000005146412

DESCRIPTION

During driving, the TPMS receives the signal transmitted from the transmitter installed in each wheel, when

the tire pressure becomes low. The control unit (BCM) of this system has pressure judgment and trouble diag-

nosis functions.

When the TPMS detects low inflation pressure or another unusual symptom, the warning lamps in the combi-

nation meter comes on.

SELF DIAGNOSIS (WITH CONSULT-III)

With CONSULT-III

• Touch “SELF-DIAG RESULTS” display to show malfunction experienced since the last erasing operation.

Refer to

WT-11, "CONSULT-III Function (BCM)"

SELF DIAGNOSIS (WITHOUT CONSULT-III)

Without CONSULT-III

To start the self-diagnostic results mode, ground terminal of the tire pressure warning check connector. The

malfunction location is indicated by the warning lamp flashing.

NOTE:

When the low tire warning lamp flashes 5 Hz and continues repeating it, the system is normal.

Monitor Item

[Unit]

Description

OIL PRESS SW [ON/OFF]

Displays the status of oil pressure switch received from IPDM E/R via CAN communication.

Test Item

Operation

Description

OIL PRESSURE SW

OFF

BCM transmits the oil pressure switch signal to the combination meter via CAN communica-
tion, which operates the oil pressure gauge in the combination meter.

SEIA0745E

Flickering

pattern

Items

Diagnostic items detected when···

Check item

Tire pressure value (Front LH)

Front LH tire pressure drops to 181 kPa (1.8 kg/cm, 25.25 psi) or less.

–

Tire pressure value (Front RH)

Front RH tire pressure drops to 181 kPa (1.8 kg/cm, 25.25 psi) or less.

Tire pressure value (Rear RH)

Rear RH tire pressure drops to 181 kPa (1.8 kg/cm, 25.25 psi) or less.

Tire pressure value (Rear LH)

Rear LH tire pressure drops to 181 kPa (1.8 kg/cm, 25.25 psi) or less.

BCS

DIAGNOSIS SYSTEM (BCM)

BCS-29

< FUNCTION DIAGNOSIS >

[BCM]

ERASE SELF-DIAGNOSIS

With CONSULT-III

1. Perform applicable inspection of malfunctioning item and then repair or replace.

2. Turn ignition switch “ON” and select “SELF-DIAG RESULTS” mode for “AIR PRESSURE MONITOR” with

CONSULTIII.

3. Touch “ERASE” on CONSULT-III screen to erase memory.

Without CONSULT-III

• In order to make it easier to find the cause of hard-to-duplicate malfunctions, malfunction information is

stored into the control unit as necessary during use by the user. This memory is not erased no matter how

many times the ignition switch is turned “ON” and “OFF”.

• However, this information is erased by turning ignition switch “OFF” after performing self-diagnostic or by

erasing the memory using the CONSULT-III.

Transmitter no data (Front LH)

Data from front LH transmitter can not be received.

WT-34

Transmitter no data (Front RH)

Data from front RH transmitter can not be received.

Transmitter no data (Rear RH)

Data from Rear RH transmitter can not be received.

Transmitter no data (Rear LH)

Data from Rear LH transmitter can not be received.

Transmitter checksum error
(Front LH)

Checksum data from front LH transmitter is malfunctioning.

WT-34

Transmitter checksum error
(Front RH)

Checksum data from front RH transmitter is malfunctioning.

Transmitter checksum error
(Rear RH)

Checksum data from rear RH transmitter is malfunctioning.

Transmitter checksum error
(Rear LH)

Checksum data from rear RH transmitter is malfunctioning.

Transmitter pressure data error
(Front LH)

Air pressure data from front LH transmitter is malfunction.

WT-34

Transmitter pressure data error
(Front RH)

Air pressure data from front RH transmitter is malfunction.

Transmitter pressure data error
(Rear RH)

Air pressure data from rear RH transmitter is malfunction.

Transmitter pressure data error
(Rear LH)

Air pressure data from rear LH transmitter is malfunction.

Transmitter function code error
(Front LH)

Function code data from front LH transmitter is malfunction.

WT-34

Transmitter function code error
(Front RH)

Function code data from front RH transmitter is malfunction.

Transmitter function code error
(Rear RH)

Function code data from rear RH transmitter is malfunction.

Transmitter function code error
(Rear LH)

Function code data from rear LH transmitter is malfunction.

Transmitter battery voltage low
(Front LH)

Battery voltage of front LH transmitter drops.

WT-34

Transmitter battery voltage low
(Front RH)

Battery voltage of front RH transmitter drops.

Transmitter battery voltage low
(Rear RH)

Battery voltage of rear RH transmitter drops.

Transmitter battery voltage low
(Rear LH)

Battery voltage of rear LH transmitter drops.

Vehicle speed signal error

Speed signal is not detected.

WT-34

No flicker-

ing

Tire pressure warning check
switch

Tire pressure warning switch circuit is open.

–

Flickering

pattern

Items

Diagnostic items detected when···

Check item

BCS-30

< FUNCTION DIAGNOSIS >

[BCM]

DIAGNOSIS SYSTEM (BCM)

AIR PRESSURE MONITOR : CONSULT-III Function

INFOID:0000000005146413

WORK SUPPORT

ID Read

The registered ID number is displayed.

ID Regist

Refer to

WT-6, "ID Registration Procedure"

SELF-DIAG RESULTS

Operation Procedure

Refer to

WT-11, "CONSULT-III Function (BCM)"

DATA MONITOR

Screen of data monitor mode is displayed. Refer to

WT-11, "CONSULT-III Function (BCM)"

NOTE:

When malfunction is detected, CONSULT-III perform REAL-TIME DIAGNOSIS.

Also, any malfunction detected while in this mode will be displayed at real time.

ACTIVE TEST

NOTE:

Before performing the self-diagnosis, be sure to register the ID, or else the actual malfunction may be different

from that displayed on CONSULT-III.

TEST ITEM LIST

THEFT ALM
THEFT ALM : CONSULT-III Function (BCM - THEFT ALM)

INFOID:0000000005370264

WORK SUPPORT

DATA MONITOR

Test item

Content

WARNING LAMP

This test is able to check to make sure that the warning lamp turns on.

ID REGIST WARNING

This test is able to check to make sure that the buzzer sounds or the warning lamp turns on.

FLAT TIRE WARNING

This test is able to check to make sure that the buzzer sounds.

HORN

This test is able to check to make sure that the horn sounds.

FLASHER

This test is able to check to make sure that each turn signal lamp turns on.

Test Item

Description

SECURITY ALARM SET

This mode is able to confirm and change security alarm ON-OFF setting.

THEFT ALM TRG

The switch which triggered vehicle security alarm is recorded. This mode is able to confirm and
erase the record of vehicle security alarm. The trigger data can be erased by touching “CLEAR” on
CONSULT-III screen.

Monitor Item

[Unit]

Description

IGN ON SW [ON/OFF]

Indicates ignition switch (ON) status judged from IGN signal (ignition power supply)

ACC ON SW [ON/OFF]

Indicates ignition switch (ACC) status judged from ACC signal (accessory power supply)

I-KEY LOCK [ON/OFF]

Indicates lock signal status received from Intelligent Key unit by CAN communication

I-KEY UNLOCK [ON/OFF]

Indicates unlock signal status received from Intelligent Key unit by CAN communication

I-KEY TRUNK [ON/OFF]

Indicates condition of back door opener switch

TRNK OPNR SW [ON/OFF]

Indicates switch status of back door opener switch

TRNK OPN MNTR [ON/OFF]

Indicates switch status of back door latch

Content .. 100 101 102 103 ..