Qashqai J11. Brake system — part 3
BR-34
< REMOVAL AND INSTALLATION >
[LHD]
VACUUM LINES
• Use a handy vacuum pump (A) to check.
• Replace vacuum hose assembly if vacuum hose and check valve
are malfunctioning.
INSTALLATION
IInstall the vacuum hose and tube.
CAUTION:
• Because vacuum hose contains a check valve, it must be
installed in the correct position. Refer to the stamp to confirm
correct installation. Brake booster will not operate normally if
the hose is installed in the wrong direction.
• Insert vacuum hose at least 24 mm (0.94 in) (A).
• Never use lubricating oil during assembly.
• Face the marking side up when assembling of vacuum hose.
• Face the marking side vehicle front when assembling of vac-
uum hose (built in check valve).
When connected to the brake booster side (B) :
Vacuum should decrease within 1.3 kPa (10 mm-
Hg, 0.39 inHg, 0.013 bar) for 15 seconds under a
vacuum of -66.7 kPa (-500 mmHg, -19.70 inHg, -
0,667 bar).
When connected to the engine side (C) :
Vacuum should not exist.
JPFIA0024ZZ
JPFIA0023ZZ
FRONT DISC BRAKE
BR-35
< REMOVAL AND INSTALLATION >
[LHD]
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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.
2.
Remove lower sliding pin bolt.
3.
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
1.
Brake hose
2.
Union bolt
3.
Copper washer
4.
Cap
5.
Bleeder valve
6.
Cylinder body
7.
Sliding pin
8.
Sliding pin boot
9.
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
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.
1.
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.
2.
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.
3.
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.
4.
Install the lower sliding pin bolt and tighten it to the specified torque.
5.
Depress the brake pedal several times to check that no drag feel is present for the front disc brake.
6.
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.
1.
Drive vehicle on straight, flat road.
2.
Depress brake pedal with the power to stop vehicle within 3 to 5 seconds until the vehicle stops.
3.
Drive without depressing brake for a few minutes to cool the brake.
4.
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]
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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.
2.
Fix the disc rotor using wheel nuts.
3.
Drain brake fluid. Refer to
CAUTION:
Never spill or splash brake fluid on the disc rotor.
4.
Remove union bolt, and then disconnect brake hose from caliper assembly.
1.
Brake hose
2.
Union bolt
3.
Copper washer
4.
Cap
5.
Bleeder valve
6.
Cylinder body
7.
Sliding pin
8.
Sliding pin boot
9.
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
for symbols not described on the above.
JPFIA0090GB
BR-38
< REMOVAL AND INSTALLATION >
[LHD]
FRONT DISC BRAKE
5.
Remove torque member mounting bolts, and remove brake cali-
per assembly.
CAUTION:
Never drop brake pads and caliper assembly.
6.
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.
2.
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.
3.
Install brake hose to brake caliper assembly, and tighten union bolts to the specified torque.
4.
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.
5.
Check that no drag feel is present for the front disc brake.
6.
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.
1.
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.
2.
Remove sliding pins and sliding pin boots from torque member.
3.
Remove bushing from sliding pin.
4.
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]
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5.
Remove piston seal from cylinder body using suitable tool.
CAUTION:
Be careful not to damage a cylinder inner wall.
ASSEMBLY
1.
Apply rubber grease to piston seal (1), and install to cylinder
body.
CAUTION:
Never reuse piston seal.
2.
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.
3.
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.
4.
Apply rubber grease to bushing, install bushing to sliding pin.
5.
Apply rubber grease to sliding pins and sliding pin boots, install
sliding pins and sliding pin boots to torque member.
6.
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.
2.
Depress brake pedal with the power to stop vehicle within 3 to 5 seconds until the vehicle stops.
3.
Drive without depressing brake for a few minutes to cool the brake.
4.
Repeat steps 1 to 3 until pad and disc rotor are securely fitted.
REAR DISC BRAKE
BR-41
< REMOVAL AND INSTALLATION >
[LHD]
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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
1.
Remove tires.
1.
Bolt
2.
Actuator
3.
Sliding pin bolt
4.
Cap
5.
Bleeder valve
6.
Cylinder body
7.
Piston
8.
Piston boot
9.
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
for symbols not described on the above.
E1FIA0155GB
BR-42
< REMOVAL AND INSTALLATION >
[LHD]
REAR DISC BRAKE
2.
Loosen the upper sliding pin bolt and remove the lower sliding pin bolt.
3.
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.
4.
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
1.
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.
2.
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.
3.
Install the brake pads to the torque member.
4.
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.
5.
Using the upper sliding pin bolt as a pivot, swing the brake caliper up to the torque member.
6.
Install the lower sliding pin bolts. Tighten all sliding pin bolts to specification. Refer to
7.
Depress the brake pedal several times and verify that drag does not exist.
8.
Install the tires
9.
Check brake fluid level and refill as necessary. Refer to
.
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.
1.
Drive vehicle on straight, flat road.
2.
Depress brake pedal with the power to stop vehicle within 3 to 5 seconds until the vehicle stops.
3.
Drive without depressing brake for a few minutes to cool the brake.
4.
Repeat steps 1 to 3 until pad and disc rotor are securely fitted.
REAR DISC BRAKE
BR-43
< REMOVAL AND INSTALLATION >
[LHD]
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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
.
1.
Remove tires.
2.
Secure the disc brake rotor using wheel nuts.
3.
Drain brake fluid. Refer to
CAUTION:
1.
Bolt
2.
Actuator
3.
Sliding pin bolt
4.
Cap
5.
Bleeder valve
6.
Cylinder body
7.
Piston
8.
Piston boot
9.
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
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.
4.
Remove union bolt (1) and then disconnect brake hose (2) from
caliper assembly.
5.
Remove the torque member bolts. Remove the brake caliper
and torque member from the vehicle as an assembly.
6.
Remove sliding pin bolts and the brake caliper from torque
member.
CAUTION:
Never drop brake pads and caliper assembly.
7.
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
1.
Install disc rotor.
CAUTION:
Align the matching marks made during removal when reusing the disc rotor.
2.
Install the brake caliper to torque member and install the sliding pin bolts. Tighten to specification.
3.
Install the brake caliper and torque member to the vehicle as an assembly. Install the torque member
bolts.
4.
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.
5.
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.
6.
Check that no drag feel is present for the rear disc brake.
7.
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.
1.
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.
2.
Remove sliding pin boots from torque member.
3.
Remove bushing from sliding pin bolt.
JPFIA0036ZZ
AWFIA0795ZZ
REAR DISC BRAKE
BR-45
< REMOVAL AND INSTALLATION >
[LHD]
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4.
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.
5.
Remove piston seal from cylinder body using suitable tool.
CAUTION:
Be careful not to damage a cylinder inner wall.
ASSEMBLY
1.
Apply polyglycol ether based lubricant to piston seal (1), and
install to cylinder body.
CAUTION:
Never reuse piston seal.
2.
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
3.
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.
4.
Apply polyglycol ether based lubricant to bushing, install bush-
ing to sliding pin bolt.
5.
Apply rubber grease to the sliding pin bolts and the sliding pin
boots, install sliding pin boot to torque member.
6.
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.
1.
Drive vehicle on straight, flat road.
2.
Depress brake pedal with the power to stop vehicle within 3 to 5 seconds until the vehicle stops.
3.
Drive without depressing brake for a few minutes to cool the brake.
4.
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]
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SERVICE DATA AND SPECIFICATIONS (SDS)
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
1
)
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
2
)
[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
se
ct
io
n
NVH in WT
se
ct
io
n
NVH in F
AX and/or
R
A
X section
NVH in ST
section
Possible cause and
SUSPECTED PARTS
Pad
s
- da
ma
ge
d
Pad
s
- un
ev
en
wea
r
Shi
m
s
da
ma
ge
d
Ro
to
r im
ba
la
nc
e
Ro
to
r da
ma
ge
Rot
o
r runout
Ro
to
r de
fo
rm
a
tio
n
Ro
to
r de
fl
e
c
ti
o
n
Rot
o
r rust
Ro
to
r th
ic
kn
es
s va
ri
ati
o
n
PROPELLER SHAFT
DIFF
ERENTIAL
AXLE AND S
U
SPENSION
TI
RE
ROAD WHEE
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DRIVE SHAFT
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RING
Symptom
BRAKE
Noise
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Shake
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Shimmy, Judder
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PRECAUTIONS
BR-49
< PRECAUTION >
[RHD]
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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
1.
Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2.
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.
3.
Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4.
Perform the necessary repair operation.
5.
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.)
6.
Perform a self-diagnosis check of all control units using CONSULT.
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