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PARKING BRAKE SYSTEM
F BRAKES
A
SECTION
PARKING BRAKE SYSTEM
PB B
C
D
E
CONTENTS
PRECAUTIONS ......................................................... 2
. Components ............................................................ 6
. PB
Precautions for Supplemental Restraint System Removal and Installation ......................................... 7 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- REMOVAL ............................................................ 7
.
SIONER" ................................................................. 2
. INSTALLATION .................................................... 7 . G
Precautions for Battery Service ............................... 2 . Inspection ................................................................ 7
.
NOISE, VIBRATION AND HARSHNESS (NVH) PARKING BRAKE SHOE .......................................... 8 .
TROUBLESHOOTING ............................................... 3 . Components ............................................................ 8
.
H
NVH Troubleshooting Chart .................................... 3 . Removal and Installation ......................................... 8 .
PARKING BRAKE SYSTEM ..................................... 4 . REMOVAL ............................................................ 8
.
On-Vehicle Service (Foot Lever Type) .................... 4 . INSPECTION AFTER REMOVAL ........................ 9 .
INSPECTION ....................................................... 4
. INSTALLATION .................................................... 9 . I
ADJUSTMENT ..................................................... 4. BREAKING IN DRUM AND LINING ................... 11 .
On-Vehicle Service (Hand Lever Type) ................... 5 . SERVICE DATA AND SPECIFICATIONS (SDS) ..... 12 .
INSPECTION ....................................................... 5
. Parking Drum Brake .............................................. 12 . J
ADJUSTMENT ..................................................... 5. Parking Brake Control ........................................... 12 .
PARKING BRAKE CONTROL .................................. 6 .
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Revision; 2004 April PB-1 2003 G35 Coupe
PRECAUTIONS
PRECAUTIONS PFP:00001
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" AFS0012Y
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 and SB section of this Service Man-
ual.
WARNING:
q 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 per-
formed by an authorized NISSAN/INFINITI dealer.
q Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
q 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
harness connectors.
Precautions for Battery Service AFS001JR
Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer-
ence between the window edge and the vehicle when the door is opened/closed. During normal operation, the
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.
Revision; 2004 April PB-2 2003 G35 Coupe
Symptom
X: Applicable
Reference page
Possible cause and
BRAKE
SUSPECTED PARTS
Revision; 2004 April
Noise
Shake
Shimmy, Judder
NVH Troubleshooting Chart
Pads - damaged Refer to BR section
X
Pads - uneven wear Refer to BR section AND PB-4 .
X
Shims damaged Refer to BR section
X
Rotor imbalance --
X
X
PB-3
Rotor damage --
X
Rotor runout Refer to BR section
X
Rotor deformation --
X
X Rotor deflection --
Rotor rust --
X
Rotor thickness variation NVH in BR section
X
DRIVE SHAFT NVH in RAX section
X
X
AXLE NVH in FAX AND RAX section
X
X
X
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
SUSPENSION NVH in FSU AND RSU section
X
X
X
TIRES NVH in WT section
X
X
X
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
ROAD WHEEL NVH in WT section
X
X
X
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
STEERING NVH in PS section
X
X
X
2003 G35 Coupe
PFP:00003
AFS0012Z
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B
A
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D
C
G
PB
M
PARKING BRAKE SYSTEM
PARKING BRAKE SYSTEM PFP:36010
On-Vehicle Service (Foot Lever Type) AFS00130
INSPECTION
q While depressing the parking brake pedal to specified amount of
force. Check that the pedal stroke is within the range of the
specified stroke amount.
Number of notches : 3-4
q Check that warning lamp comes on when parking brake pedal is
depressed with in one notch.
SBR695A
ADJUSTMENT
q To perform adjustment operations, remove tire from the vehicle with power tool. Using a wheel nut, fix the
disc to the hub preventing it from tilting.
1. Insert a deep-well socket wrench to rotate the self-locking nut to
loosen the cable sufficiently. Then, after returning the pedal
completely, adjust the clearance of the rear shoes.
SFIA1101E
2. Remove the adjuster hole plug installed on the disc. Using a
screwdriver, turn the disc to clock wise as shown in the figure
until the disc is locked. After locking, turn the adjuster to the
opposite direction by 5 or 6 notches.
3. Rotate the disc to make sure that there is no drag. Then install
the adjuster hole plug.
4. After adjusting the clearance of the rear shoes, with no drag on
the rear brake, adjust the cable as follows:
a. Operate the pedal 10 or more times with the force of 294 N (30
kg, 66 lb).
SBR046C
b. Depress the pedal until a deep-well socket can be inserted.
Insert the deep-well socket, and rotate the self-locking nut to adjust the pedal stroke.
CAUTION:
Do not reuse the self-locking nut after removing it.
c. After operating the pedal 3 to 4 times with the force of 196 N (20 kg, 44 lb), make sure that the pedal
stroke is within the specified value.
d. With the pedal completely returned, make sure that there is no drag on the rear brake.
Revision; 2004 April PB-4 2003 G35 Coupe
PARKING BRAKE SYSTEM
On-Vehicle Service (Hand Lever Type) AFS0014R
INSPECTION A
q While depressing the parking brake lever to specified amount of
force. Check that the lever stroke is within the range of the spec-
ified stroke amount. B
Number of notches : 6-7
q Check that warning lamp comes on when parking brake lever is C
depressed with in one notch.
D
SBR073D
ADJUSTMENT E
q To perform adjustment operations, remove tire from the vehicle with power tool. Using a wheel nut, fix the
disc to the hub preventing it from tilting.
1. Insert a deep-well socket wrench to rotate the self-locking nut to PB
loosen the cable sufficiently. Then, after returning the lever com-
pletely, adjust the clearance of the rear shoes.
G
H
SFIA1102E
I
2. Remove the adjuster hole plug installed on the disc. Using a
screwdriver, turn the disc to clock wise as shown in the figure J
until the disc is locked. After locking, turn the adjuster to the
opposite direction by 5 or 6 notches.
3. Rotate the disc to make sure that there is no drag. Then install
K
the adjuster hole plug.
4. After adjusting the clearance of the rear shoes, with no drag on
the rear brake, adjust the cable as follows:
L
a. Operate the lever 10 or more times with the force of 294 N (30
kg, 66 lb).
SBR046C
b. Depress the lever until a deep-well socket can be inserted.
Insert the deep-well socket, and rotate the self-locking nut to adjust the lever stroke. M
CAUTION:
Do not reuse the self-locking nut after removing it.
c. After operating the lever 3 to 4 times with the force of 196 N (20 kg, 44 lb), make sure that the lever stroke
is within the specified value.
d. With the lever completely returned, make sure that there is no drag on the rear brake.
Revision; 2004 April PB-5 2003 G35 Coupe
PARKING BRAKE CONTROL
PARKING BRAKE CONTROL PFP:36010
Components AFS00131
Foot lever type
SFIA1057E
1. Self-locking nut 2. Lock plate 3. Device assembly
4. Front cable 5. Return spring 6. LH rear cable
7. RH rear cable 8. Pin
Hand lever type
SFIA1077E
1. Self-locking nut 2. Device assembly 3. Front cable
4. LH rear cable 5. RH rear cable 6. Pin
Revision; 2004 April PB-6 2003 G35 Coupe
PARKING BRAKE CONTROL
Removal and Installation AFS00132
REMOVAL A
1. Remove instrument lower driver panel (foot lever type). Refer to IP-10, "INSTRUMENT PANEL ASSEM-
BLY" .
2. Remove console. Refer to IP-10, "INSTRUMENT PANEL ASSEMBLY" . B
3. Remove self-locking nut from device assembly.
4. Remove the tire.
5. Remove rear disc caliper and disc rotor. Refer to BR-35, "REAR DISC BRAKE (AD14VE TYPE)" , BR-41, C
"REAR DISC BRAKE (OPB13VB TYPE)" .
6. Remove parking brake shoe, and remove rear cable from toggle lever. Refer to PB-8, "PARKING BRAKE
SHOE" . D
7. Remove cable mounting nuts and bolts.
8. Remove right and left rear cable from the vehicle.
E
9. Remove air bag sensor unit with the sensor mount bracket. Refer to SRS-48, "DIAGNOSIS SENSOR
UNIT" .
10. Remove front cable mounting nuts and bolts (foot lever type), and remove front cable from the vehicle.
PB
11. Remove mounting bolts of the device assembly, and remove device assembly from the vehicle.
INSTALLATION
1. Install in the reverse order of removal. Tighten the mounting bolts and nuts to the specified torque. G
CAUTION:
Do not reuse the self-locking nut of the parking cable.
2. Adjust clearance of parking brake shoes. Refer to PB-4, "On-Vehicle Service (Foot Lever Type)" , PB-5, H
"On-Vehicle Service (Hand Lever Type)" .
Inspection AFS00133
I
q Check the device assembly for bend, damage, and cracks. Replace if necessary.
q Check the cable for wear and damage.
q Check the warning lamp switch. Replace if necessary. J
q Check each part for deformation, or damage by contact with other parts. Replace if necessary.
K
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Revision; 2004 April PB-7 2003 G35 Coupe
PARKING BRAKE SHOE
PARKING BRAKE SHOE PFP:44060
Components AFS00134
SFIA1103E
1. Shoe 2. Adjuster assembly 3. Adjuster spring
4. Return spring 5. Anti-rattle pin 6. Retainer
7. Anti-rattle spring 8. Toggle lever
Removal and Installation AFS00135
REMOVAL
CAUTION:
Clean brakes with a vacuum dust collector to minimize the hazard of airborne particles or other mate-
rials.
Be careful of the following:
q Remove the wheel, and remove the disc rotor with the parking pedal completely returned.
q If the disc rotor cannot be removed, remove as follows.
1. Fix the disc rotor with the wheel nut.
2. Remove plug.
3. Insert flat-bladed screwdriver through plug. Turn adjuster to
make clearance between brake shoe and drum.
SBR046CA
Revision; 2004 April PB-8 2003 G35 Coupe
PARKING BRAKE SHOE
INSPECTION AFTER REMOVAL
Lining Thickness Inspection A
q Visually check the lining for malfunction wear, damage, and
peeling.
q Using a scale, check the thickness of the lining. B
Standard lining thickness : 3.2 mm (0.126 in)
lining wear limit (A) : 1.5 mm (0.059 in) C
D
SBR021A
Drum Inner Diameter Inspection E
q Check the inner diameter of the drum.
Standard inner diameter : 172.0 mm (6.77 in)
Maximum inner diameter : 173.0 mm (6.81 in) PB
G
H
SBR768A
Other Inspections
I
q Check the shoe sliding surface for abnormal wear and damage.
q Check the anchor pin for abnormal wear and corrosion.
q Check the return spring for sagging. J
q Check the adjuster for rough operation.
q Visually check the inside of the drum for abnormal wear, damage, and cracks. Using a pair of vernier cali-
pers, check the inside of the drum. K
INSTALLATION
Install all parts in the reverse order of while taking care of the following.
L
q Apply brake grease to the contact areas shown in the figure.
M
SBR047C
Revision; 2004 April PB-9 2003 G35 Coupe
PARKING BRAKE SHOE
q The orientation of the adjuster is different from left to right.
Assemble the adjuster so that the threaded part is expanded
when rotating it to the direction shown by the arrow. Contract the
adjuster to assemble. When disassembling the adjuster, apply
brake grease to the thread.
q Adjust the parking brake pedal stroke to the specified amount.
q After replacing the shoe or disc rotor, or if the brake does not
function well, carry out the break-in operation as follows.
SFIA0153E
Revision; 2004 April PB-10 2003 G35 Coupe
PARKING BRAKE SHOE
BREAKING IN DRUM AND LINING
CAUTION: A
Do not carry out the break-in procedure excessively, because it may cause the uneven wear or prema-
ture wear of the lining.
When a new rotor/parking brake shoe is installed, or when braking performance is poor, perform the following B
break-in procedure.
1. Drive the unloaded vehicle on a safe, level and dry road.
2. Depress parking brake pedal with a force of 147 N (15 kg, 33 lb). C
3. While depressing the pedal, continue to drive the vehicle for-ward 100 m (328 ft) at approximately 35 km/
h (22 MPH).
4. Cool down parking brake for approx. Five minutes. D
5. After releasing the pedal, drive the vehicle under the normal conditions for two minutes to cool down the
parking drum brake.
6. Repeat steps 1 through 5 three times and then repeat only step 5 one more time. E
7. After the break-in procedure, check the pedal stroke of the parking brake. If it is out of the specification,
adjust again.
PB
G
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Revision; 2004 April PB-11 2003 G35 Coupe
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS) PFP:00030
Parking Drum Brake AFS00137
Type DS17HF
Standard thickness (new) 3.2 mm (0.126 in)
Brake lining
Wear limit thickness 1.5 mm (0.059 in)
Standard inner diameter (new) 172 mm (6.77 in)
Drum (disc)
Wear limit of inner diameter 173 mm (6.81 in)
Parking Brake Control AFS00138
Control type Foot lever / Hand lever
3 - 4 (foot lever type)
Number of notches (under force of 196 N (20 kg,44lb))
6 - 7 (hand lever type)
Number of notches
1
when warning lamp switch comes on
Revision; 2004 April PB-12 2003 G35 Coupe
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