Nissan Murano. Manual - part 1293

SRC-20

< SYSTEM DESCRIPTION >

[FOR USA AND CANADA]

DIAGNOSIS SYSTEM (AIRBAG)

When crash zone sensor (Item display 1) and B-pillar satellite sensor LH (Item display 2) are malfunctioning.

• Sensor system and front air bag system

When crash zone sensor (Item display 1) and driver air bag module (Item display 2) are malfunctioning.

CONSULT Function

INFOID:0000000009718479

APPLICATION ITEM

CONSULT performs the following functions.

SELF-DIAG RESULT

Refer to 

SRC-67, "DTC Index"

.

JMHIA2367GB

JMHIA2368GB

Diagnosis mode

Description

Self Diagnostic Result

• Self-diagnosis result is displayed.
• “No DTC”is displayed when repair is completed by part replacement or other operations.
• “SELF-DIAG RESULT [MEMORY]” is displayed until “Erase”performed.

Data Monitor

This item is displayed, but cannot be supported.

ECU Identification

Air bag diagnosis sensor unit ECU discriminated number (identification number) or part number is 
displayed. Air bag diagnosis sensor unit has individual ECU discriminated number (identification 
number) or part number based on model and equipment.

TROUBLE DIAG RECORD

With TROUBLE DIAG RECORD, diagnosis results previously erased by a reset operation can be 
displayed on CONSULT screen.

U1000 CAN COMM CIRCUIT

SRC-21

< DTC/CIRCUIT DIAGNOSIS >

[FOR USA AND CANADA]

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DTC/CIRCUIT DIAGNOSIS

U1000 CAN COMM CIRCUIT

Description

INFOID:0000000009718480

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-28, "CAN System Specification Chart"

.

DTC Logic

INFOID:0000000009718481

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000009718482

1.

PERFORM SELF DIAGNOSTIC

1.

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

2.

Check “SELF-DIAG RESULT [CAN]”.

Is DTC “U1000” displayed?

YES

>> Refer to 

LAN-18, "Trouble Diagnosis Flow Chart"

.

NO

>> Refer to 

GI-44, "Intermittent Incident"

.

DTC

CONSULT screen 

items

DTC Detection Condition

Possible cause

U1000

CAN COMM CIRCUIT

When air bag diagnosis sensor unit cannot 
communicate CAN communication signal 
continuously for 2 seconds or more.

CAN communication system

SRC-22

< DTC/CIRCUIT DIAGNOSIS >

[FOR USA AND CANADA]

U1010 CONTROL UNIT (CAN)

U1010 CONTROL UNIT (CAN)

DTC Logic

INFOID:0000000009718483

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000009718484

1.

REPLACE AIR BAG DIAGNOSIS SENSOR UNIT

When DTC “U1010” is detected, replace air bag diagnosis sensor unit.

>> Replace air bag diagnosis sensor unit. Refer to 

SR-26, "Removal and Installation"

.

DTC

CONSULT screen items

DTC Detection Condition

Possible cause

U1010

CONTROL UNIT (CAN)

Air bag diagnosis sensor unit detected internal CAN communica-
tion circuit malfunction.

Air bag diagnosis sensor unit

B0001 DRIVER AIR BAG MODULE

SRC-23

< DTC/CIRCUIT DIAGNOSIS >

[FOR USA AND CANADA]

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B0001 DRIVER AIR BAG MODULE

DTC Logic

INFOID:0000000009718485

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF-DIAG RESULT

 With CONSULT

1.

Turn ignition switch ON.

2.

Perform “Self Diagnostic Result” mode of “AIR BAG” using CONSULT.

 Without CONSULT

1.

Turn ignition switch ON.

2.

Check the air bag warning lamp status. Refer to 

SRC-15, "On Board Diagnosis Function"

.

NOTE:
SRS does not enter the diagnosis mode if no malfunction is detected in the user mode.

Is malfunctioning part detected?

YES

>> Refer to 

SRC-23, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009718486

WARNING:

• Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait at least 3

minutes or more. (To discharge backup capacitor.)

• Never use unspecified tester or other measuring device.

1.

CHECK HARNESS CONNECTOR

Check the harness connector.
Is the inspection result normal?

DTC

CONSULT screen items

(Trouble diagnosis content)

DTC detecting condition

Possible cause

B0001

DRIVER AIRBAG MODULE 
[Driver Frontal Stage 1 De-
ployment Control (Subfault)]

[OPEN]

Driver air bag module cir-
cuit is open
(including the spiral cable)

• Connection malfunction or open 

circuit of harness and connector

• Internal malfunction of driver air 

bag module

• Internal malfunction of air bag 

diagnosis sensor unit

[VB-SHORT]

Driver air bag module cir-
cuit is shorted to power 
supply circuit
(including the spiral cable)

• Connection malfunction or short 

circuit to power supply of har-
ness and connector

• Internal malfunction of driver air 

bag module

• Internal malfunction of air bag 

diagnosis sensor unit

[GND-SHORT]

Driver air bag module cir-
cuit is shorted to ground
(including the spiral cable)

• Connection malfunction or short 

circuit to ground of harness and 
connector

• Internal malfunction of driver air 

bag module

• Internal malfunction of air bag 

diagnosis sensor unit

[SHORT]

Driver air bag module cir-
cuits   are shorted to each 
other
(including the spiral cable)

• Connection malfunction or short 

circuit of harness and connector

• Internal malfunction of driver air 

bag module

• Internal malfunction of air bag 

diagnosis sensor unit