Nissan Qashqai J11. Manual - part 1025

SRC-38

< BASIC INSPECTION >

ADDITIONAL SERVICE WHEN REPLACING AIR BAG DIAGNOSIS SENSOR 

UNIT

ADDITIONAL SERVICE WHEN REPLACING AIR BAG DIAGNOSIS SEN-
SOR UNIT

Description

INFOID:0000000010431028

BEFORE REPLACEMENT

When replacing air bag diagnosis sensor unit, save or print current vehicle specification with CONSULT con-
figuration before replacement.
NOTE:
If “Before Replace ECU” of “Read / Write Configuration” cannot be used, use the “Manual Configuration” after
replacing air bag diagnosis sensor unit.

AFTER REPLACEMENT

CAUTION:

Follow the instructions listed below. Failure to do this may cause malfunctions to the air bag diagno-
sis sensor unit.
• Never perform “Read / Write Configuration” or “Manual Configuration” except for new air bag diag-

nosis sensor unit. 

• When replacing air bag diagnosis sensor unit, you must perform “Read / Write Configuration” or

“Manual Configuration” with CONSULT.

• Complete the procedure of “Read / Write Configuration” or “Manual Configuration” in order.
• If you set incorrect “Read / Write Configuration” or “Manual Configuration”, incidents might occur.
• Configuration is different for each vehicle model. Confirm configuration of each vehicle model.

Work Procedure

INFOID:0000000010431029

1.

SAVING VEHICLE SPECIFICATION

CONSULT Configuration

Perform “Before Replace ECU” of “Read / Write Configuration” to save or print current vehicle specification.
NOTE:
If “Before Replace ECU” of “Read / Write Configuration” cannot be used, use the “Manual Configuration” after
replacing air bag diagnosis sensor unit.

>> GO TO 2.

2.

REPLACE AIR BAG DIAGNOSIS SENSOR UNIT

Replace air bag diagnosis sensor unit. Refer to 

SR-28, "Removal and Installation"

.

>> GO TO 3.

3.

WRITING VEHICLE SPECIFICATION

CONSULT Configuration

Perform “After Replace ECU” of “Read / Write Configuration” or “Manual Configuration” to write vehicle speci-
fication. Refer to 

SRC-39, "Work Procedure"

.

>> WORK END

CONFIGURATION (AIR BAG DIAGNOSIS SENSOR UNIT)

SRC-39

< BASIC INSPECTION >

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CONFIGURATION (AIR BAG DIAGNOSIS SENSOR UNIT)

Work Procedure

INFOID:0000000010431030

1.

WRITING MODE SELECTION

CONSULT Configuration

Select “Re/programming, Configuration” of air bag.

When writing saved data>>GO TO 2.
When writing manually>>GO TO 3.

2.

PERFORM “AFTER REPLACE ECU” OF “READ / WRITE CONFIGURATION”

CONSULT Configuration

Perform “After Replace ECU” of “Read / Write Configuration”.

>> GO TO 4.

3.

PERFORM “MANUAL CONFIGURATION”

CONSULT Configuration

1.

Select “Manual Configuration”.

2.

Touch “Next”.

3.

Select the “Type ID” searched by using FAST (service parts catalogue) to write the “Type ID” into the air
bag diagnosis sensor unit.

4.

Touch “OK”.

5.

Check that the configuration has been successfully written and touch “End”.

>> GO TO 4.

4.

CHECK ALL ECU SELF-DIAGNOSIS RESULTS

1.

Erase all ECU self-diagnosis results using CONSULT.

2.

Turn the ignition switch OFF.

3.

Turn the ignition switch ON.

4.

Check that all ECU self-diagnosis results have no DTC.

>> WORK END

SRC-40

< DTC/CIRCUIT DIAGNOSIS >

U1000 CAN COMM CIRCUIT

DTC/CIRCUIT DIAGNOSIS

U1000 CAN COMM CIRCUIT

Description

INFOID:0000000010377825

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-39, "CAN COMMUNICATION SYSTEM : CAN System Spec-

ification Chart"

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DTC Logic

INFOID:0000000010377826

DTC DETECTION LOGIC

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

—

Diagnosis Procedure

INFOID:0000000010377827

1.

PERFORM SELF DIAGNOSTIC

1.

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

2.

Check “SELF-DIAG RESULT [CAN]”.

Is DTC “U1000–01” displayed?

YES

>> Refer to 

LAN-24, "Trouble Diagnosis Flow Chart"

.

NO

>> Refer to 

GI-41, "Intermittent Incident"

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DTC

CONSULT screen items

(Trouble diagnosis content)

DTC Detection Condition

U1000–01

CAN COMM CIRCUIT
(CAN communication circuit)

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

U1010 CONTROL UNIT (CAN)

SRC-41

< DTC/CIRCUIT DIAGNOSIS >

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U1010 CONTROL UNIT (CAN)

DTC Logic

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DTC DETECTION LOGIC

POSSIBLE CAUSE

Air bag diagnosis sensor unit

FAIL-SAFE

—

Diagnosis Procedure

INFOID:0000000010377829

1.

REPLACE AIR BAG DIAGNOSIS SENSOR UNIT

When DTC “U1010–49” is detected, replace Air bag diagnosis sensor unit.

>> Replace Air bag diagnosis sensor unit. Refer to 

SR-28, "Removal and Installation"

.

DTC

CONSULT screen items

(Trouble diagnosis content)

DTC Detection Condition

U1010–49

CONTROL UNIT (CAN)
[Control unit (CAN)]

Air bag diagnosis sensor unit detected internal CAN communication cir-
cuit malfunction.