Nissan Murano Z51. Manual - part 320

VEHICLE JERKS DURING VDC/TCS/ABS CONTROL

BRC-103

< SYMPTOM DIAGNOSIS >

[VDC/TCS/ABS]

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VEHICLE JERKS DURING VDC/TCS/ABS CONTROL

Diagnosis Procedure

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1.

SYMPTOM CHECK

Check if the vehicle jerks during VDC/TCS/ABS control.
Is the inspection result normal?

YES

>> Normal.

NO

>> GO TO 2.

2.

CHECK SELF-DIAGNOSIS RESULTS

Perform self-diagnosis for “ABS” with CONSULT-III.
Are self-diagnosis results indicated?

YES

>> Check corresponding items, make repairs, and perform self-diagnosis for “ABS” with CONSULT-

III.

NO

>> GO TO 3.

3.

CHECK CONNECTOR

1.

Turn the ignition switch OFF.

2.

Disconnect ABS actuator and electric unit (control unit) harness connector.

3.

Check terminal for deformation, disconnection, looseness, etc.

4.

Securely connect connectors and perform self-diagnosis for “ABS” with CONSULT-III.

Are self-diagnosis results indicated?

YES

>> If poor contact, damage, open or short circuit of connector terminal is found, repair or replace.

NO

>> GO TO 4.

4.

CHECK ECM AND TCM SELF-DIAGNOSIS RESULTS

Perform self-diagnosis for “ENGINE” and “TRANSMISSION” with CONSULT-III.

Are self-diagnosis results indicated?

YES

>> Check the corresponding items.

NO

>> Replace ABS actuator and electric unit (control unit). Refer to 

BRC-113, "Exploded View"

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BRC-104

< SYMPTOM DIAGNOSIS >

[VDC/TCS/ABS]

NORMAL OPERATING CONDITION

NORMAL OPERATING CONDITION

Description

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Symptom

Result

Slight vibrations are felt on the brake pedal and the operation noises occur, when VDC, TCS or ABS is acti-
vated. 

This is a normal condi-
tion due to the VDC, 
TCS or ABS activation.

Stopping distance is longer than that of vehicles without ABS when the vehicle drives on rough, gravel, or 
snow-covered (fresh, deep snow) roads.

The brake pedal moves and generates noises, when TCS or VDC is activated due to rapid acceleration or 
sharp turn.

The brake pedal vibrates and motor operation noises occur from the engine room, after the engine starts and 
just after the vehicle starts.

This is a normal, and it is 
caused by the ABS op-
eration check.

Depending on the road conditions, the driver may experience a sluggish feel. 

This is normal, because 
TCS places the highest 
priority on the optimum 
traction (stability).

TCS may activate momentarily if wheel speed changes when driving over location where friction coefficient 
varies, when downshifting, or when fully depressing accelerator pedal.

The ABS warning lamp, VDC OFF indicator lamp and SLIP indicator lamp may turn ON when the vehicle is 
subject to strong shaking or large vibration, such as when the vehicle is rotating on a turntable or located on 
a ship while the engine is running. 

In this case, restart the 
engine on a normal 
road. If the normal con-
dition is restored, there 
is no malfunction. At 
that time, erase the self-
diagnosis memory.

VDC may not operate normally or the ABS warning lamp, VDC OFF indicator lamp, and SLIP indicator lamp 
may illuminate, when running on a special road that is extremely slanted (e.g. bank in a circuit course). 

A malfunction may occur in the yaw rate/side G sensor system, when the vehicle turns sharply, such as dur-
ing a spin turn, axle turn, or drift driving, while the VDC function is off (VDC OFF indicator lamp illuminated). 

The vehicle speed will not increase even though the accelerator pedal is depressed, when inspecting the 
speedometer on a 2-wheel chassis dynamometer. 

Normal (Deactivate the 
VDC/TCS function be-
fore performing an in-
spection on a chassis 
dynamometer.)

PRECAUTIONS

BRC-105

< PRECAUTION >

[VDC/TCS/ABS]

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PRECAUTION

PRECAUTIONS

FOR USA AND CANADA

FOR USA AND CANADA : Precaution for Supplemental Restraint System (SRS) "AIR 
BAG" and "SEAT BELT PRE-TENSIONER"

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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. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SRS AIR BAG” and “SEAT BELT” of this
Service Manual.

WARNING:

• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision which 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 the “SRS AIR BAG”.

• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.

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

WARNING:

• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the

ignition ON or engine running, DO NOT 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.

FOR USA AND CANADA : Precaution Necessary for Steering Wheel Rotation after 
Battery Disconnect

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NOTE:
• Before removing and installing any control units, first turn the push-button ignition switch to the LOCK posi-

tion, then disconnect both battery cables.

• After finishing work, confirm that all control unit connectors are connected properly, then re-connect both

battery cables.

• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.

If a DTC is detected, perform trouble diagnosis according to self-diagnosis results.

For vehicle with steering lock unit, if the battery is disconnected or discharged, the steering wheel will lock and
cannot be turned.
If turning the steering wheel is required with the battery disconnected or discharged, follow the operation pro-
cedure below before starting the repair operation.

OPERATION PROCEDURE

1.

Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.

2.

Turn the push-button ignition switch to ACC position.
(At this time, the steering lock will be released.)

3.

Disconnect both battery cables. The steering lock will remain released with both battery cables discon-
nected and the steering wheel can be turned.

4.

Perform the necessary repair operation.

BRC-106

< PRECAUTION >

[VDC/TCS/ABS]

PRECAUTIONS

5.

When the repair work is completed, re-connect both battery cables. With the brake pedal released, turn
the push-button ignition switch from ACC position to ON position, then to LOCK position. (The steering
wheel will lock when the push-button ignition switch is turned to LOCK position.)

6.

Perform self-diagnosis check of all control units using CONSULT-III.

FOR USA AND CANADA : Precaution for Procedure without Cowl Top Cover

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When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.

FOR USA AND CANADA : Precaution for Brake System

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WARNING:

Clean any dust from the front brake and rear brake with a vacuum dust collector. Never blow with com-
pressed air.

CAUTION:

• Brake fluid use refer to 

MA-15, "FOR NORTH AMERICA : Fluids and Lubricants"

.

• Never reuse drained brake fluid.
• Never spill or splash brake fluid on painted surfaces. Brake fluid may seriously damage paint. Wipe it

off immediately and wash with water if it gets on a painted surface.

• Never use mineral oils such as gasoline or light oil to clean. They may damage rubber parts and

cause improper operation.

• Always loosen the brake tube flare nut with a flare nut wrench.
• Tighten the brake tube flare nut to the specified torque with

crowfoot (A) and torque wrench (B).

• Always confirm the specified tightening torque when install-

ing the brake pipes.

• Turn the ignition switch OFF and disconnect the ABS actuator

and electric unit (control unit) connector or the battery nega-
tive terminal before performing the work.

• Check that no brake fluid leakage is present after replacing

the parts.

FOR USA AND CANADA : Precaution for Brake Control

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• When starting engine or when starting vehicle just after starting engine, brake pedal may vibrate or motor

operating noise may be heard from engine compartment. This is normal condition.

• When an error is indicated by ABS or another warning lamp, collect all necessary information from customer

(what symptoms are present under what conditions) and check for estimate causes before starting diagnos-
tic servicing. Besides electrical system inspection, check brake booster operation, brake fluid level, and oil
leaks.

• If tire size and type are used in an improper combination, or brake pads are not Genuine NISSAN parts,

stopping distance or steering stability may deteriorate.

• ABS might be out of order or malfunctions by putting a radio (wiring inclusive), an antenna and a lead-in wire

near the control unit.

• If aftermarket parts (car stereo, CD player, etc.) have been installed, check for incidents such as harness

pinches, open circuits, and improper wiring.

• VDC system may not operate normally or a VDC OFF indicator lamp or SLIP indicator lamp may light. 

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