Content .. 1877 1878 1879 1880 ..

Nissan Qashqai J11. Manual - part 1879

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CHASSIS COMMUNICATION CIRCUIT

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< DTC/CIRCUIT DIAGNOSIS >

[CAN]

CHASSIS COMMUNICATION CIRCUIT

Diagnosis Procedure

INFOID:0000000010339753

CHECK CAN DIAGNOSIS

Check the CAN diagnosis results from CONSULT to see that the CAN communication circuit 1 and CAN com-
munication circuit 2 have no malfunction.

Are the CAN communication 1 and CAN communication 2 circuits normal?

YES

>> GO TO 2.

>> Check and repair CAN communication circuit 1 and/or CAN communication circuit 2.

CONNECTOR INSPECTION

Turn the ignition switch OFF.

Disconnect the battery cable from the negative terminal.

Check the terminals and connectors of the chassis control module for damage, bend and loose connec-
tion (unit side and connector side).

Is the inspection result normal?

YES

>> GO TO 3.

>> Repair the terminal and connector.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Disconnect the connector of chassis control module.

Check the continuity between the chassis control module harness connector terminals.

Is the inspection result normal?

YES

>> GO TO 4.

>> Check the harness and repair or replace the root cause.

CHECK HARNESS CONTINUITY (SHORT CIRCUIT)

Disconnect all the unit connectors on chassis communication circuit.

Check the continuity between the chassis control module harness connector terminals.

Is the inspection result normal?

YES

>> GO TO 5.

>> Check the harness and repair or replace the root cause.

CHECK HARNESS CONTINUITY (SHORT CIRCUIT)

Check the continuity between the chassis control module harness connector and the ground.

Is the inspection result normal?

YES

>> GO TO 6.

>> Check the harness and repair or replace the root cause.

Chassis control module harness connector

Continuity

Connector No.

Terminal No.

M43

Existed

Chassis control module harness connector

Continuity

Connector No.

Terminal No.

M43

Not existed

Chassis control module harness connector

Ground

Continuity

Connector No.

Terminal No.

M43

Not existed

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< DTC/CIRCUIT DIAGNOSIS >

[CAN]

CHASSIS COMMUNICATION CIRCUIT

CHECK CHASSIS CONTROL MODULE TERMINATION CIRCUIT

Remove the chassis control module.

Check the resistance between the chassis control module terminals.

Is the measurement value within the specification?

YES

>> GO TO 7.

>> Replace the chassis control module.

CHECK SYMPTOM

Connect all the connectors. Check if the symptoms described in the “Symptom (Results from interview with
customer)” are reproduced.
Inspection result

Reproduced>>GO TO 8.
Non-reproduced>>Start the diagnosis again. Follow the trouble diagnosis procedure when past error is

detected.

CHECK UNIT REPRODUCTION

Perform the reproduction test as per the following procedure for each unit.
1.

Turn the ignition switch OFF.

Disconnect the battery cable from the negative terminal.

Disconnect one of the unit connectors of chassis communication circuit.
NOTE:
Chassis control module has two termination circuits. Check other units first.

Connect the battery cable to the negative terminal. Check if the symptoms described in the “Symptom
(Results from interview with customer)” are reproduced.
NOTE:
Although unit-related error symptoms occur, do not confuse them with other symptoms.

Inspection result

Reproduced>>Connect the connector. Check other units as per the above procedure.
Non-reproduced>>Replace the unit whose connector was disconnected.

Chassis control module

Resistance (

Ω

)

Terminal No.

Approx. 108 – 132

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PRECAUTIONS

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< PRECAUTION >

[CAN GATEWAY]

PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"

INFOID:0000000010497486

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the “SRS AIR BAG” and
“SEAT BELT” of this Service Manual.

WARNING:

Always observe the following items for preventing accidental activation.
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision that would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see “SRS AIR BAG”.

• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-

vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

Always observe the following items for preventing accidental activation.
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the

ignition ON or engine running, never use air or electric power tools or strike near the sensor(s) with
a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.

• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the

battery, and wait at least 3 minutes before performing any service.

Precautions for Removing Battery Terminal

INFOID:0000000010503415

• With the adoption of Auto ACC function, ACC power is automatically supplied by operating the intelligent key

or remote keyless entry or by opening/closing the driver side door. In addition, ACC power is supplied even
after the ignition switch is turned to the OFF position, i.e. ACC power is supplied for a certain fixed time.

• When disconnecting the 12V battery terminal, turn off the ACC

power before disconnecting the 12V battery terminal, observing
“How to disconnect 12V battery terminal” described below.
NOTE:
Some ECUs operate for a certain fixed time even after ignition
switch is turned OFF and ignition power supply is stopped. If the
battery terminal is disconnected before ECU stops, accidental DTC
detection or ECU data damage may occur.

• For vehicles with the 2-batteries, be sure to connect the main bat-

tery and the sub battery before turning ON the ignition switch.
NOTE:
If the ignition switch is turned ON with any one of the terminals of
main battery and sub battery disconnected, then DTC may be detected.

• After installing the 12V battery, always check "Self Diagnosis Result" of all ECUs and erase DTC.

NOTE:
The removal of 12V battery may cause a DTC detection error.

HOW TO DISCONNECT 12V BATTERY TERMINAL

Disconnect 12V battery terminal according to instruction described below.
1.

Open the hood.

Turn ignition switch to the ON position.

Turn ignition switch to the OFF position with the driver side door opened.

Get out of the vehicle and close the driver side door.

SEF289H

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< PRECAUTION >

[CAN GATEWAY]

PRECAUTIONS

Wait at least 3 minutes. For vehicle with the engine listed below, remove the battery terminal after a lapse
of the specified time.

CAUTION:

While waiting, never operate the vehicle such as locking, opening, and closing doors. Violation of
this caution results in the activation of ACC power supply according to the Auto ACC function.

Remove 12V battery terminal.

CAUTION:

After installing 12V battery, always check self-diagnosis results of all ECUs and erase DTC.

D4D engine

: 20 minutes

HRA2DDT

: 12 minutes

K9K engine

: 4 minutes

M9R engine

: 4 minutes

R9M engine

: 4 minutes

V9X engine

: 4 minutes

Content .. 1877 1878 1879 1880 ..