Nissan Murano Z51. Manual - part 267

BCS

DIAGNOSIS SYSTEM (BCM)

BCS-35

< SYSTEM DESCRIPTION >

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

INFOID:0000000005683256

Data monitor

SIGNAL BUFFER

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

INFOID:0000000005518292

DATA MONITOR

ACTIVE TEST

AIR PRESSURE MONITOR

AIR PRESSURE MONITOR : Diagnosis Description

INFOID:0000000005683263

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 low tire pressure warning
lamps in the combination meter comes on. 

SELF DIAGNOSTIC PROCEDURE (WITH CONSULT-III)

 With CONSULT-III

Touch “SELF-DIAG RESULT” display shows malfunction experienced since the last erasing operation. Refer
to 

BCS-90, "DTC Index"

.

SELF DIAGNOSTIC PROCEDURE (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 low tire pressure warning lamp blinking.

NOTE:
When the low tire pressure warning lamp blinks 5 Hz and continues repeating it, the system is normal.

Monitor Item

Description

DOOR SW-DR

Indicates [ON/OFF] condition of driver side door switch.

DOOR SW-AS

Indicates [ON/OFF] condition of passenger side door switch.

Monitor item [UNIT]

Description

PUSH SW
[Off/On]

Displays the status of the push-button ignition switch (push switch) judged by BCM.

Test item

Opera-

tion

Description

OIL PRESSURE SW

Off

OFF

On

BCM transmits the oil pressure switch signal to the combination meter via CAN communica-
tion, which illuminates the oil pressure warning lamp in the combination meter.

JPEIC0030GB

BCS-36

< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (BCM)

NOTE:

182.7 kPa (1.9 kg/cm

2

, 26 psi): Standard air pressure is for 230 kPa (2.3 kg/cm

2

, 33 psi) vehicles.

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
CONSULT-III.

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.

AIR PRESSURE MONITOR : CONSULT-III Function (BCM - AIR PRESSURE MONI-
TOR)

INFOID:0000000005683264

WORK SUPPORT MODE

ID Read

The registered ID number is displayed.

ID Regist

Refer to 

WT-22, "ID REGISTRATION PROCEDURE : Special Repair Requirement"

.

SELF-DIAG RESULTS MODE

Operation Procedure

Refer to 

BCS-90, "DTC Index"

.

Blinking 

pattern

Items

Diagnostic items detected when···

Check 

item

15

Tire pressure value (Front LH)

Front LH tire pressure drops to * kPa (* kg/cm

2

, * psi) or less. [NOTE]

WT-25

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Tire pressure value (Front RH)

Front RH tire pressure drops to * kPa (* kg/cm

2

, * psi) or less. [NOTE]

17

Tire pressure value (Rear RH)

Rear RH tire pressure drops to * kPa (* kg/cm

2

, * psi) or less. [NOTE]

18

Tire pressure value (Rear LH)

Rear LH tire pressure drops to * kPa (* kg/cm

2

, * psi) or less. [NOTE]

21

Transmitter no data (Front LH)

Data from front LH transmitter can not be receive.

WT-27

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Transmitter no data (Front RH)

Data from front RH transmitter can not be receive.

23

Transmitter no data (Rear RH)

Data from rear RH transmitter can not be receive.

24

Transmitter no data (Rear LH)

Data from rear LH transmitter can not be receive.

35

Transmitter pressure data error 
(Front LH)

Air pressure data from front LH transmitter is malfunction.

WT-30

36

Transmitter pressure data error 
(Front RH)

Air pressure data from front RH transmitter is malfunction.

37

Transmitter pressure data error 
(Rear RH)

Air pressure data from rear RH transmitter is malfunction.

38

Transmitter pressure data error 
(Rear LH)

Air pressure data from rear LH transmitter is malfunction.

52

Vehicle speed signal error

Vehicle speed signal error.

WT-32

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Control unit

Tire pressure monitoring system malfunction in BCM.

WT-34

No 

blinking

Tire pressure warning check 
switch

Tire pressure warning switch circuit is open.

–

BCS

DIAGNOSIS SYSTEM (BCM)

BCS-37

< SYSTEM DESCRIPTION >

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DATA MONITOR MODE

Screen of data monitor mode is displayed.
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.

Display item list

NOTE:
Before performing the self-diagnosis, be sure to register the ID, or erase the actual malfunction location may
be different from that displayed on CONSULT-III.

ACTIVE TEST MODE

NOTE:
Before performing the self-diagnosis, be sure to register the ID, or erase the actual malfunction may be differ-
ent from that displayed on CONSULT-III.

TEST ITEM LIST

Monitor

Condition

Specification

AIR PRESS FL
AIR PRESS FR
AIR PRESS RR
AIR PRESS RL

• Drive vehicle for a few minutes.

                           or

• Ignition switch ON and activation tool is trans-

mitting activation signals.

Tire pressure (kPa, kg/cm

2

 or Psi)

ID REGST FL
ID REGST FR
ID REGST RR
ID REGST RL

Ignition switch ON

Registration ID: Green
No registration: Red

WARNING LAMP

Low tire pressure warning lamp on: ON
Low tire pressure warning lamp off: OFF

BUZZER

Buzzer in combination meter on: ON
Buzzer in combination meter off: OFF

Test item

Content

WARNING LAMP

This test is able to check to check that the low tire pressure warning lamp turns on.

ID REGIST WARNING

This test is able to check to check that the buzzer sounds or the low tire pressure warning lamp 
turns on.

FLASHER

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

HORN

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

BCS-38

< DTC/CIRCUIT DIAGNOSIS >

U1000 CAN COMM

DTC/CIRCUIT DIAGNOSIS

U1000 CAN COMM

Description

INFOID:0000000005518295

CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Modern
vehicle is equipped with many electronic control unit, and each control unit shares information and links with
other control units during operation (not independent). In CAN communication, control units are connected
with 2 communication lines (CAN H-line, CAN L-line) allowing a high rate of information transmission with less
wiring. Each control unit transmits/receives data but selectively reads required data only.
CAN Communication Signal Chart. Refer to 

LAN-27, "CAN Communication Signal Chart"

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DTC Logic

INFOID:0000000005518296

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000005518297

1.

PERFORM SELF DIAGNOSTIC

1.

Turn ignition switch ON and wait for 2 seconds or more.

2.

Check “Self Diagnostic Result”.

Is DTC “U1000” displayed?

YES

>> Refer to 

LAN-17, "Trouble Diagnosis Flow Chart"

.

NO

>> Refer to 

GI-39, "Intermittent Incident"

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DTC

CONSULT-III display 

description

DTC Detection Condition

Possible cause

U1000

CAN COMM

When BCM cannot communicate CAN com-
munication signal continuously for 2 seconds 
or more.

CAN communication system