Qashqai J11. Brake system

FRONT DISC BRAKE

BR-35

< REMOVAL AND INSTALLATION >

[LHD]

FRONT DISC BRAKE

BRAKE PAD

BRAKE PAD : Exploded View

INFOID:0000000010305384

BRAKE PAD : Removal and Installation

INFOID:0000000010305385

REMOVAL

WARNING:

Clean any dust from the brake caliper and brake pads with a vacuum dust collector. Never blow with
compressed air.

CAUTION:

• Never depress the brake pedal while removing the brake pads because the piston may pop out.
• Never spill or splash brake fluid on the disc rotor.
1.

Remove tires.

Remove lower sliding pin bolt.

Suspend the cylinder body with suitable wire so that the brake hose will not stretch. Then remove the
brake pad from the torque member.

CAUTION:

• Never deform the pad retainer when removing the pad retainer from the torque member.
• Never damage the piston boot.
• Never drop the brake pads, shims, and the shim covers.

INSTALLATION

Brake hose

Union bolt

Copper washer

Cap

Bleeder valve

Cylinder body

Sliding pin

Sliding pin boot

Bushing

10.

Piston seal

11.

Piston

12.

Piston boot

13.

Torque member

14.

Inner shim cover

15.

Inner shim

16.

Inner pad

17.

Pad retainer

18.

Outer pad

19.

Outer shim

20.

Outer shim cover

1: Apply rubber grease.

2: Apply copper based brake grease.

: Apply brake fluid.

Refer to

GI-4, "Components"

for symbols not described on the above.

JPFIA0090GB

BR-36

< REMOVAL AND INSTALLATION >

[LHD]

FRONT DISC BRAKE

WARNING:

Clean any dust from the brake caliper and brake pads with a vacuum dust collector. Never blow with
compressed air.

CAUTION:

• Never depress the brake pedal while removing the brake pads or the cylinder body because the pis-

ton may pop out.

• Never spill or splash brake fluid on the disc rotor.

Install pad retainer to the torque member if pad retainer is removed.

CAUTION:

• Securely assemble the pad retainers so thatthey cannot be lifted up from the torque member.
• Never deform the pad retainers.

Apply copper based brake grease to the mating faces between the pads, shims and shim covers, and
install them to the brake pad.

CAUTION:

Always replace the shims together with the shim covers when replacing the brake pad.

Install the cylinder body and brake pads to the torque member.

CAUTION:

• Never damage the piston boot.
• When replacing pads with new ones, check the brake fluid level in the reservoir tank because

brake fluid returns to master cylinder reservoir tank when pressing piston in.

NOTE:
Use a disc brake piston tool to easily press piston.

Install the lower sliding pin bolt and tighten it to the specified torque.

Depress the brake pedal several times to check that no drag feel is present for the front disc brake.

Install tires.

BRAKE PAD : Inspection and Adjustment

INFOID:0000000010305386

INSPECTION AFTER REMOVAL

Replace the shims and the shim covers if rust is excessively attached.

ADJUSTMENT AFTER INSTALLATION

Brake Burnishing Procedure

Burnish contact surfaces between pads according to following procedure after refinishing or replacing pads, or
if a soft pedal occurs at very low mileage.

CAUTION:

• Be careful of vehicle speed because the brake does not operate easily until pads and disc rotor are

securely fitted.

• Only perform this procedure under safe road and traffic conditions. Use extreme caution.

Drive vehicle on straight, flat road.

Depress brake pedal with the power to stop vehicle within 3 to 5 seconds until the vehicle stops.

Drive without depressing brake for a few minutes to cool the brake.

Repeat steps 1 to 3 until pad and disc rotor are securely fitted.

BRAKE CALIPER ASSEMBLY

FRONT DISC BRAKE

BR-37

< REMOVAL AND INSTALLATION >

[LHD]

BRAKE CALIPER ASSEMBLY : Exploded View

INFOID:0000000010305387

BRAKE CALIPER ASSEMBLY : Removal and Installation

INFOID:0000000010305388

REMOVAL

WARNING:

Clean any dust from the brake caliper and brake pads with a vacuum dust collector. Never blow with
compressed air.

CAUTION:

Never depress the brake pedal. Brake fluid may splash while removing the brake hose.
1.

Remove tires.

Fix the disc rotor using wheel nuts.

Drain brake fluid. Refer to

BR-11, "Draining"

CAUTION:

Never spill or splash brake fluid on the disc rotor.

Remove union bolt, and then disconnect brake hose from caliper assembly.

Brake hose

Union bolt

Copper washer

Cap

Bleeder valve

Cylinder body

Sliding pin

Sliding pin boot

Bushing

10.

Piston seal

11.

Piston

12.

Piston boot

13.

Torque member

14.

Inner shim cover

15.

Inner shim

16.

Inner pad

17.

Pad retainer

18.

Outer pad

19.

Outer shim

20.

Outer shim cover

1: Apply rubber grease.

2: Apply copper based brake grease.

: Apply brake fluid.

Refer to

GI-4, "Components"

for symbols not described on the above.

JPFIA0090GB

BR-38

< REMOVAL AND INSTALLATION >

[LHD]

FRONT DISC BRAKE

Remove torque member mounting bolts, and remove brake cali-
per assembly.

CAUTION:

Never drop brake pads and caliper assembly.

Remove disc rotor.

CAUTION:

• Put matching marks on the wheel hub and bearing assem-

bly and the disc rotor before removing the disc rotor.

• Never drop disc rotor.

INSTALLATION

WARNING:

Clean any dust from the brake caliper and brake pads with a vacuum dust collector. Never blow with
compressed air.

CAUTION:

Never depress the brake pedal. Brake fluid may splash while removing the brake hose.
1.

Install disc rotor.

CAUTION:

Align the matching marks made during removal when reusing the disc rotor.

Install the brake caliper assembly to the vehicle and tighten the torque member mounting bolts at 120N.m
(12,3 ; 88,5).

CAUTION:

Never spill or splash any grease and moisture on the brake caliper assembly mounting face,
threads, mounting bolts and washers. Wipe out any grease and moisture.

Install brake hose to brake caliper assembly, and tighten union bolts to the specified torque.

Refill with new brake fluid and perform the air bleeding. Refer to

BR-12, "Bleeding Brake System"

CAUTION:

• Never reuse drained brake fluid.
• Never spill or splash brake fluid on the disc rotor.

Check that no drag feel is present for the front disc brake.

Install tires.

BRAKE CALIPER ASSEMBLY : Disassembly and Assembly

INFOID:0000000010305389

DISASSEMBLY

NOTE:
Never remove the torque member, brake pads, shims, shim covers and pad retainers when disassembling and
assembling the cylinder body.

Remove the sliding pin bolts, and remove the cylinder body from the torque member.

CAUTION:

Never drop pads, shims, shim covers and pad retainers from torque member.

Remove sliding pins and sliding pin boots from torque member.

Remove bushing from sliding pin.

Place a wooden block as shown in the figure, and blow air from
union bolt mounting hole to remove piston and piston boot.

CAUTION:

Never get fingers caught in the piston.

JPFIA0030ZZ

MAA0272D

FRONT DISC BRAKE

BR-39

< REMOVAL AND INSTALLATION >

[LHD]

Remove piston seal from cylinder body using suitable tool.

CAUTION:

Be careful not to damage a cylinder inner wall.

ASSEMBLY

Apply rubber grease to piston seal (1), and install to cylinder
body.

CAUTION:

Never reuse piston seal.

Apply rubber grease to piston boot (1). Cover the piston (2) end
with piston boot, and then install cylinder side lip on piston boot
securely into a groove on cylinder body.

CAUTION:

Never reuse piston boot.

Apply brake fluid to piston (1). Push piston into cylinder body by
hand and push piston boot (2) piston-side lip into the piston
groove.

CAUTION:

Press the piston evenly and vary the pressing point to pre-
vent cylinder inner wall from being rubbed.

Apply rubber grease to bushing, install bushing to sliding pin.

Apply rubber grease to sliding pins and sliding pin boots, install
sliding pins and sliding pin boots to torque member.

Install the cylinder body to the torque member and tighten the
sliding pin bolts to the specified torque.

BRAKE CALIPER ASSEMBLY : Inspection and Adjustment

INFOID:0000000010305390

INSPECTION AFTER DISASSEMBLY

Cylinder Body

Check the inner wall of the cylinder for rust, wear, cracks or damage. Replace the cylinder if any abnormal
condition is detected.

CAUTION:

Always clean with new brake fluid. Never clean with mineral oil such as gasoline and light oil.

JPFIA0038ZZ

JPFIA0039ZZ

JPFIA0040ZZ

JPFIA0034ZZ

BR-40

< REMOVAL AND INSTALLATION >

[LHD]

FRONT DISC BRAKE

Torque Member

Check the torque member for rust, wear, cracks or damage. Replace the member if any abnormal condition is
detected.

Piston

Check the surface of the piston for rust, wear, cracks or damage. Replace the piston if any abnormal condition
is detected.

CAUTION:

A piston sliding surface is plated. Never polish with sandpaper.

Sliding Pin and Sliding Pin Boot

Check the sliding pins and sliding boots for rust, wear, cracks or damage. Replace the parts if any abnormal
condition is detected.

ADJUSTMENT AFTER INSTALLATION

Brake Burnishing Procedure

Burnish contact surfaces between disc rotors and pads according to following procedure after refinishing or
replacing disc rotor, or if a soft pedal occurs at very low mileage.

CAUTION:

• Be careful of vehicle speed because the brake does not operate easily until pad and disc rotor are

securely fitted.

• Only perform this procedure under safe road and traffic conditions. Use extreme caution.
1.

Drive vehicle on straight, flat road.

Depress brake pedal with the power to stop vehicle within 3 to 5 seconds until the vehicle stops.

Drive without depressing brake for a few minutes to cool the brake.

Repeat steps 1 to 3 until pad and disc rotor are securely fitted.

REAR DISC BRAKE

BR-41

< REMOVAL AND INSTALLATION >

[LHD]

REAR DISC BRAKE

BRAKE PAD

BRAKE PAD : Exploded View

INFOID:0000000010305391

BRAKE PAD : Removal and Installation

INFOID:0000000010305392

REMOVAL

WARNING:

Clean any dust from the brake caliper and brake pads with a vacuum dust collector. Never blow with
compressed air.

CAUTION:

• Never depress the brake pedal while removing the brake pads or the cylinder body because the pis-

ton may pop out.

• Never spill or splash brake fluid on the disc rotor.
• With consult perform EHS/PKB work support. Refer to

PB-47, "Work Procedure"

Remove tires.

Bolt

Actuator

Sliding pin bolt

Cap

Bleeder valve

Cylinder body

Piston

Piston boot

Sliding pin boot

10.

Bushing

11. Torque member

12.

Outer shim

13.

Outer pad

14. Inner pad

15.

Inner shim

: Apply rubber grease.

: Apply brake fluid.

Refer to

GI-4, "Components"

for symbols not described on the above.

E1FIA0155GB

BR-42

< REMOVAL AND INSTALLATION >

[LHD]

REAR DISC BRAKE

Loosen the upper sliding pin bolt and remove the lower sliding pin bolt.

Using the upper sliding pin bolt as a pivot, swing the brake caliper down from the torque member. Leaving
the brake hose attached, support the brake caliper with wire.

Remove the brake pads, shims, shim covers, pad retainers, and anti-rattle clips from the torque member.

CAUTION:

• Never deform the pad retainers if removing the pad retainers.
• Never damage the piston boot.
• Never drop the brake pad, shims, and the shim cover.

INSTALLATION

WARNING:

Clean any dust from the brake caliper and brake pads with a vacuum dust collector. Never blow with
compressed air.

CAUTION:

• Never depress the brake pedal while removing the brake pads or the cylinder body because the pis-

ton may pop out.

• Never spill or splash brake fluid on the disc rotor.
• After installation, with consult perform EHS/PKB work support. Refer to

PB-47, "Work Procedure"

Install the pad retainers to the torque member if pad retainer is removed.

CAUTION:

• Securely assemble the pad retainers so that they cannot be lifted up from the torque member.
• Never deform the pad retainers.

Apply copper based brake grease to the mating faces between the brake pads and the shims and install
them to the brake pad.

CAUTION:

Always replace the shims together with the shim cover when replacing the brake pad.

Install the brake pads to the torque member.

Using a suitable tool, press the pistons into the brake caliper.

CAUTION:

• Never damage the piston boot.
• When replacing pads with new ones, check the brake fluid level in the reservoir tank because

brake fluid returns to master cylinder reservoir tank when pressing piston in.

Using the upper sliding pin bolt as a pivot, swing the brake caliper up to the torque member.

Install the lower sliding pin bolts. Tighten all sliding pin bolts to specification. Refer to

BR-41, "BRAKE PAD

: Exploded View"

Depress the brake pedal several times and verify that drag does not exist.

Install the tires

Check brake fluid level and refill as necessary. Refer to

BR-11, "Inspection"

BRAKE PAD : Inspection and Adjustment

INFOID:0000000010305393

INSPECTION AFTER REMOVAL

Replace the shims and the shim cover if rust is excessively attached.

ADJUSTMENT AFTER INSTALLATION

Brake Burnishing Procedure

Burnish contact surfaces between pads according to following procedure after refinishing or replacing pads, or
if a soft pedal occurs at very low mileage.

CAUTION:

• Be careful of vehicle speed because the brake does not operate easily until pad and disc rotor are

securely fitted.

• Only perform this procedure under safe road and traffic conditions. Use extreme caution.

Drive vehicle on straight, flat road.

Depress brake pedal with the power to stop vehicle within 3 to 5 seconds until the vehicle stops.

Drive without depressing brake for a few minutes to cool the brake.

Repeat steps 1 to 3 until pad and disc rotor are securely fitted.

REAR DISC BRAKE

BR-43

< REMOVAL AND INSTALLATION >

[LHD]

BRAKE CALIPER ASSEMBLY

BRAKE CALIPER ASSEMBLY : Exploded View

INFOID:0000000010305394

BRAKE CALIPER ASSEMBLY : Removal and Installation

INFOID:0000000010305395

REMOVAL

WARNING:

Clean any dust from the brake caliper and brake pads with a vacuum dust collector. Never blow with
compressed air.

CAUTION:

• Never depress the brake pedal. Brake fluid may splash while removing the brake hose.
• With consult perform EHS/PKB work support. Refer to

PB-56, "Work Procedure"

Remove tires.

Secure the disc brake rotor using wheel nuts.

Drain brake fluid. Refer to

BR-11, "Draining"

CAUTION:

Bolt

Actuator

Sliding pin bolt

Cap

Bleeder valve

Cylinder body

Piston

Piston boot

Sliding pin boot

10.

Bushing

11. Torque member

12.

Outer shim

13.

Outer pad

14. Inner pad

15.

Inner shim

: Apply rubber grease.

: Apply brake fluid.

Refer to

GI-4, "Components"

for symbols not described on the above.

E1FIA0155GB

BR-44

< REMOVAL AND INSTALLATION >

[LHD]

REAR DISC BRAKE

Never spill or splash brake fluid on the disc rotor.

Remove union bolt (1) and then disconnect brake hose (2) from
caliper assembly.

Remove the torque member bolts. Remove the brake caliper
and torque member from the vehicle as an assembly.

Remove sliding pin bolts and the brake caliper from torque
member.

CAUTION:

Never drop brake pads and caliper assembly.

Remove disc rotor.

CAUTION:

• Put matching marks on the wheel hub and bearing assem-

bly and the disc rotor before removing the disc rotor.

• Never drop disc rotor.

INSTALLATION

WARNING:

Clean any dust from the brake caliper and brake pads with a vacuum dust collector. Never blow with
compressed air.

CAUTION:

• Never depress the brake pedal. Brake fluid may splash while removing the brake hose.
• After installation, with consult perform EHS/PKB work support. Refer to

PB-56, "Work Procedure"

Install disc rotor.

CAUTION:

Align the matching marks made during removal when reusing the disc rotor.

Install the brake caliper to torque member and install the sliding pin bolts. Tighten to specification.

Install the brake caliper and torque member to the vehicle as an assembly. Install the torque member
bolts.

Assemble the union bolt (A) and the copper sealing washers (1)
to the brake hose and install it as an assembly to the brake cali-
per. Align the brake hose L-pin by aligning it with the brake cali-
per hole, and tighten the union bolt (A) to the specified torque.

CAUTION:

Never reuse copper sealing washers.

Refill with new brake fluid and perform the air bleeding. Refer to

BR-12, "Bleeding Brake System"

CAUTION:

• Never reuse drained brake fluid.
• Never spill or splash brake fluid on the disc rotor.

Check that no drag feel is present for the rear disc brake.

Install tires.

BRAKE CALIPER ASSEMBLY : Disassembly and Assembly

INFOID:0000000010305396

DISASSEMBLY

NOTE:
Never remove the torque member, brake pads, shims, shim cover and pad retainers disassembling and
assembling the cylinder body.

Remove the sliding pin bolts and remove the cylinder body from the torque member.

CAUTION:

Never drop pads, shims, shim cover and pad retainers from torque member.

Remove sliding pin boots from torque member.

Remove bushing from sliding pin bolt.

JPFIA0036ZZ

AWFIA0795ZZ

REAR DISC BRAKE

BR-45

< REMOVAL AND INSTALLATION >

[LHD]

Place a wooden block as shown in the figure, and blow air from
union bolt mounting hole to remove piston and piston boot.

CAUTION:

Never get fingers caught in the piston.

Remove piston seal from cylinder body using suitable tool.

CAUTION:

Be careful not to damage a cylinder inner wall.

ASSEMBLY

Apply polyglycol ether based lubricant to piston seal (1), and
install to cylinder body.

CAUTION:

Never reuse piston seal.

Apply rubber grease to piston boot (1). Cover the piston (2) end
with the piston boot, and then install cylinder side lip on the pis-
ton boot securely into the groove on cylinder body.

CAUTION:

Never reuse piston boot.

BRD0041D

JPFIA0038ZZ

JPFIA0039ZZ

JPFIA0040ZZ

BR-46

< REMOVAL AND INSTALLATION >

[LHD]

REAR DISC BRAKE

Apply brake fluid to piston (1). Push piston into cylinder body by
hand and push piston boot (2) piston side lip into the piston
groove.

CAUTION:

Press the piston evenly and vary the pressing point to pre-
vent cylinder inner wall from being rubbed.

Apply polyglycol ether based lubricant to bushing, install bush-
ing to sliding pin bolt.

Apply rubber grease to the sliding pin bolts and the sliding pin
boots, install sliding pin boot to torque member.

Install the cylinder body to the torque member and tighten the
sliding pin bolts to the specified torque.

BRAKE CALIPER ASSEMBLY : Inspection and Adjustment

INFOID:0000000010305397

INSPECTION AFTER DISASSEMBLY

Cylinder Body

Check the inner wall of the cylinder for rust, wear, cracks or damage. Replace the cylinder if any abnormal
condition is detected.

CAUTION:

Always clean with new brake fluid. Never clean with mineral oil such as gasoline and light oil.

Torque Member

Check the torque member for rust, wear, cracks or damage. Replace the member if any abnormal condition is
detected.

Piston

Check the piston for rust, wear, cracks or damage. Replace the piston if any abnormal condition is detected.

CAUTION:

A piston sliding surface is plated. Never polish with sandpaper.

Sliding Pin Bolt and Sliding Pin Boot

Check the sliding pin bolts and sliding pin boots for rust, wear, cracks or damage. Replace the parts if any
abnormal condition is detected.

ADJUSTMENT AFTER INSTALLATION

Brake Burnishing Procedure

Burnish contact surfaces between disc rotors and pads according to the following procedure after refinishing
or replacing disc rotor, or if a soft pedal occurs at very low mileage.

CAUTION:

• Be careful of vehicle speed because the brake does not operate easily until pad and disc rotor are

securely fitted.

• Only perform this procedure under safe road and traffic conditions. Use extreme caution.

Drive vehicle on straight, flat road.

Depress brake pedal with the power to stop vehicle within 3 to 5 seconds until the vehicle stops.

Drive without depressing brake for a few minutes to cool the brake.

Repeat steps 1 to 3 until pad and disc rotor are securely fitted.

JPFIA0041ZZ

SERVICE DATA AND SPECIFICATIONS (SDS)

BR-47

< SERVICE DATA AND SPECIFICATIONS (SDS)

[LHD]

SERVICE DATA AND SPECIFICATIONS (SDS)

General Specifications

INFOID:0000000010305398

Unit: mm (in.)

Brake Pedal

INFOID:0000000010305399

Unit: mm (in.)

Brake Booster

INFOID:0000000010305400

Vacuum type

Unit: mm (in.)

Front Disc Brake

INFOID:0000000010438983

Unit: mm (in)

Rear Disc Brake

INFOID:0000000010438984

Unit: mm (in)

Front brake

Cylinder bore diameter

60.33 (2.375)

Pad length

width

thickness

123.6

47.5

11.0 (4.87

1.870

0.433)

Rotor outer diameter

thickness

296

26.0 (11.65

1.024)

Rear brake

Cylinder bore diameter

38.1 (1.5)

Pad length

width

thickness

83.0

31.9

8.5 (3.268

1.256

0.335)

Rotor outer diameter

thickness

292

16 (11.50

0.630)

Master cylinder

Cylinder bore diameter

23.8 (15/16)

Control valve

Valve type

Electric brake force distribution

Brake booster

Diaphragm diameter

275 (10.8)

Recommended brake fluid

DOT 4

Brake pedal height (H

)

175.9 – 185.9 (6.93 – 7.32)

Clearance (C) between bracket and ASCD cancel switch/stop lamp switch threaded end

0.20 – 1.96 (0.0079 – 0.0772)

Brake pedal play (A)

—

Depressed brake pedal height (H

)

[Depressing 490 N (50 kg, 110 lb) while turning the engine ON]

135.1 (5.32)

Output rod length (A)

30.5 (1.201)

Input rod length (B)

150.7 – 157.7 (5.93 – 6.21)

Item

Limit

Brake pad

Wear limit thickness

2.0 (0.079)

Disc brake rotor

Wear limit thickness

24.0 (0.945)

Thickness variation (measured at 8 positions)

0.020 (0.0008)

Runout limit (with it attached to the vehicle)

0.035 (0.0014)

Item

Limit

Brake pad

Wear limit thickness

1.5 (0.059)

Disc brake rotor

Wear limit thickness

14.0 (0.551)

Thickness variation (measured at 8 positions)

0.020 (0.0008)

Runout limit (with it attached to the vehicle)

0.070 (0.0028)

BR-48

< SYMPTOM DIAGNOSIS >

[RHD]

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

SYMPTOM DIAGNOSIS

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NVH Troubleshooting Chart

INFOID:0000000010305428

Use the chart below to find the cause of the symptom. If necessary, repair or replace these parts.

: Applicable

Reference page

NVH in DLN

section

NHV in DLN

section

NVH in F

AX, RAX

, FSU

and RSU section

NVH in WT

NVH in F

AX and/or

X section

NVH in ST

section

Possible cause and
SUSPECTED PARTS

Pad

- da

Pad

- un

wea

Shi

r im

r da

Rot

r runout

r de

tio

r de

Rot

r rust

r th

s va

ati

PROPELLER SHAFT

DIFF

ERENTIAL

AXLE AND S

SPENSION

ROAD WHEE

DRIVE SHAFT

STE

RING

Symptom

BRAKE

Noise

Shake

Shimmy, Judder

PRECAUTIONS

BR-49

< PRECAUTION >

[RHD]

PRECAUTION

PRECAUTIONS

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

INFOID:0000000010305429

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:

• 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 “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:

• 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.

Precaution Necessary for Steering Wheel Rotation After Battery Disconnect

INFOID:0000000010305430

NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-

TEM).

• Remove and install all control units after disconnecting both battery cables with the ignition switch in the

″

LOCK

″

position.

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

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

For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.

OPERATION PROCEDURE

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

Use the Intelligent Key or mechanical key to turn the ignition switch to the

″

ACC

″

position. At this time, the

steering lock will be released.

Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.

Perform the necessary repair operation.

When the repair work is completed, return the ignition switch to the

″

LOCK

″

position before connecting

the battery cables. (At this time, the steering lock mechanism will engage.)

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

Qashqai J11. Brake system - part 3