2008 INFINITI QX56 brake

PARKING BRAKE CONTROLPB-7
< ON-VEHICLE REPAIR >
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ON-VEHICLE REPAIR
PARKING BRAKE CONTROL
ComponentINFOID:0000000001604537
Removal and InstallationINFOID:0000000001604538
REMOVAL
1. Remove lower instrument panel. Refer to IP-14, "Exploded View".
2. Remove center console. Refer to IP-20, "
Exploded View".
3. Remove floor trim. Refer to INT-16, "
Removal and Installation".
4. Remove adjusting nut.
5. Remove the lock plate from the front cable.
6. Remove front cable retaining bolts and nut.
7. Disconnect return spring from equalizer.
8. Disconnect right and left rear cables from equalizer.
9. Remove rear disc rotors. Refer to BR-36, "
Removal and Installa-
tion of Brake Caliper and Disc Rotor".
10. Remove parking brake shoe, and remove rear cable from toggle
lever. Refer to PB-9, "
Removal and Installation".
1. Pedal assembly 2. Front cable3. Right rear cable
4. Left rear cable 5. Return spring6. Equalizer
7. Adjusting nut 8. Lock plate
WFIA0218E
WFIA0165E
Revision: March 2010 2008 QX56

PB-8
< ON-VEHICLE REPAIR >
PARKING BRAKE CONTROL
11. Remove right and left rear cables retaining bolts and nuts, then remove right and left rear cables.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Do not reuse adjusting nut after removing it.
• Adjust parking brake. Refer to PB-5, "
On-Vehicle Service".
Revision: March 2010 2008 QX56

PARKING BRAKE SHOEPB-9
< ON-VEHICLE REPAIR >
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PARKING BRAKE SHOE
Removal and InstallationINFOID:0000000001604539
COMPONENTS
REMOVAL
WARNING:
Clean the brakes with a vacuum dust co llector to minimize the hazard of airborne particles or other
materials.
NOTE:
Remove the disc rotor only with the parking brake pedal completely in the released position.
1. Remove the rear disc rotor. Refer to BR-36, "
Removal and Installation of Brake Caliper and Disc Rotor".
2. Remove the return springs.
3. Remove the adjuster.
4. Disconnect the rear cable from the toggle lever, if necessary.
• Remove pin retainer and withdraw cable end from toggle lever.
5. Remove the retainers, anti-rattle pins and shoes.
INSPECTION AFTER REMOVAL
Lining Thickness Inspection
1. Anti-rattle pins 2. Back plate3. Shoes
4. Return springs 5. Adjuster6. Retainers
7. Toggle lever
LFIA0222E
Revision: March 2010 2008 QX56

PB-10
< ON-VEHICLE REPAIR >
PARKING BRAKE SHOE
• Check thickness of lining.
Disc Rotor Inner Diameter Inspection
• Check inner diameter insi de drum area of disc rotor.
Other Inspections
• Check shoe sliding surface on back plate for excessive wear and damage.
• Check anti-rattle pins for excessive wear and corrosion.
• Check return springs for sagging.
• Check adjuster for rough operation.
• When disassembling adjuster, apply PBC (Poly Butyl Cuprysil) grease or equivalent to the threads.
• Check either visually or with a vernier caliper to see if there is any excessive wear, cracks, or damage inside
drum area of disc rotor.
INSTALLATION
Installation is in the reverse order of removal.
• Refer to PB-9, "
Removal and Installation" and apply brake grease to the specified points during assembly.
• Assemble adjuster so that threaded part expands when rotating it in the direction shown by the arrow.
• Shorten adjuster by rotating it.
NOTE:
After replacing brake shoes or disc rotors, or if brakes do not func-
tion well, perform break-in operation as follows.
1. Adjust parking brake pedal stroke. Refer to PB-5, "
On-Vehicle
Service".
CAUTION:
• To prevent lining from getting too hot, allow a cool off period
of approximately 5 minutes after every break-in operation.
• Do not perform excessive break-in operations, because it may
cause uneven or early wear of lining.
2. Perform parking brake burnishing operation by driving the vehicle forward under the following conditions:
3. After burnishing operation, check pedal stroke of parki ng brake. Readjust if it is no longer at the specified
stroke. Refer to PB-5, "
On-Vehicle Service".
Standard thickness “A” : 3.79
± 0.21 mm
(0.149 ± 0.008 in)
Wear limit thickness “A” : 0.5 mm (0.020 in)
SBR021A
Standard inner
diameter : 205
± 0.13 mm (8.07 ± 0.01 in)
Wear limit of in-
ner diameter : 205.7 mm (8.10 in)
SBR768A
SFIA0153E
• Vehicle speed at 40 km/h (25 MPH)
• Parking brake operating force of 196 N (20.0 kg-f, 44.1 lb-f) set
• For a period of 30 seconds
Revision: March 2010
2008 QX56

SERVICE DATA AND SPECIFICATIONS (SDS)PB-11
< SERVICE DATA AND SPECIFICATIONS (SDS)
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SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Parking BrakeINFOID:0000000001604540
Unit: mm (in)
Parking Brake ControlINFOID:0000000001604541
Ty p e Disc rotor with inner drum
Brake lining Standard thickness (new)
3.79 ± 0.21 (0.149 ± 0.008)
Wear limit thickness 0.5 (0.020)
Drum inner diameter (disc) Standard inner diameter (new)
205 ± 0.13 (8.07 ± 0.01)
Wear limit of inner diameter 205.7 (8.10)
Control type Foot pedal
Number of notches [under force of 196 N (20.0 kg-f, 44.1 lb-f)] 3 – 4 notches
Number of notches when warning lamp switch comes on 1 notch
Revision: March 2010 2008 QX56

PG-8
< BASIC INSPECTION >
INSPECTION AND ADJUSTMENT
INSPECTION AND ADJUSTMENT
ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMINAL
ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMINAL : Spe-
cial Repair Requirement
INFOID:0000000006095112
Required Procedure After Battery Disconnection
System ItemReference
Engine Control Idle Air Volume Learning Refer to EC-18
.
Brake Control Steering Angle Sensor Neutral Position Refer to BRC-8
.
Power Window Control Power Window System Initialization Refer to TSB.
Body, Lock & Security Automatic Back Door Initialization Refer to DLK-9
.
Roof Sunroof Memory Reset/Initialization Refer to RF-5
.
Seats Automatic Drive Positioner System Initialization Refer to Owner's Manual.
Audio-Visual System Audio (Radio Preset)
Refer to Owner's Manual.
Navigation System Refer to Owner's Manual.
Rear View Monitor Guiding Line Adjustment Refer to AV- 7
.
Revision: March 2010 2008 QX56

PG-42
< COMPONENT DIAGNOSIS >
HARNESS
A3 M6 W/10 : To E10A2 M92 B/6 : Power liftgate switch
A2 M7 B/5 : Passenger select unlock relay D1 M93 W/24 : Display unit
A3 M8 W/16 : To D2 A2 M95 W/6 : Rear power vent window switch
A2 M9 BR/24 : To D1 A2 M96 BR/6 : Pedal adjusting switch
A3 M10 Y/4 : To E29 C2 M98 W/16 : A/C and AV switch assembly
A3 M11 B/1 : Parking brake switch C3 M99 BR/2 : Foot lamp LH
C3 M12 GR/6 : Key switch and ignition knob switch F4 M100 BR/2 : Foot lamp RH
D3 M13 BR/2 : Front passenger air bag OFF indicator F4 M101 Y/2 : Driver air bag module
B3 M15 W/4 : Steering lock solenoid F4 M102 GR/8 : Combination switch (spiral cable)
A2 M16 GR/6 : ADP steering switch F4 M103 Y/2 : Driver air bag module
B2 M17 W/8 : Steering angle sensor E3 M104 W/4 : Aux jack
C2 M18 W/40 : BCM (body control module) F2 M105 Y/2 : Front passenger air bag module
C2 M19 W/15 : BCM (body control module) F2 M106 O/2 : Front passenger air bag module
C2 M20 B/15 : BCM (body control module) F3 M107 B/5 : Front blower relay
C3 M22 W/16 : Data link connector D5 M108 B/6 : Yaw rate/ side/ decel G sensor
B1 M23 W/12 : Combination meter A1 M109 BR/2 : Front tweeter LH
C1 M24 W/40 : Combination meter D2 M110 BR/2 : Center speaker
F2 M25 B/4 : Remote keyless entry receiver F2 M111 BR/2 : Front tweeter LH
B2 M26 W/6 : Ignition switch C2M112 BR/14 : BO SE speaker amp.
A2 M27 B/2 : Diode-3 C2 M113 BR/23 : BOSE speaker amp.
B2 M28 W/16 : Combination switch B3 M114 W/2 : Heated steering wheel
B2 M29 Y/6 : Combination switch (spiral cable) A2 M116 GR/8 : Sonar system OFF switch
B3 M30 GR/8 : Combination switch (spiral cable) B1 M118 BR/2 : Front sonar buzzer
G4 M31 SMJ : To E152 F2 M120 W/4 : Remote keyless entry receiver
C3 M32 W/4 : In-vehicle sensor F4 M122 W/4 : Variable blower control (front)
B3 M33 W/32 : Automatic drive position control unit C3 M123 W/2 : Tire pressure warning check connector
B3 M34 W/16 : Automatic drive position control unit D2 M124 GR/3 : AV control unit
C5 M35 Y/28 : Air bag diagnosis sensor unit D2 M125 B/1 : Satellite radio antenna
G4 M36 SMJ : To B149 C3 M129 V/1 : Satellite radio tuner
G3 M37 B/1 : Fuse block (J/B) D2 M139 B/2 : Diode-1
G3 M38 B/2 : Fuse block (J/B) D1 M140 B/2 : Diode-2
D3 M39 W/8 : Fuse block (J/B) C2 M141 GR/8 : 4WD shift switch
A3 M40 SMJ : To B69 E1 M142 B/6 : Mode door motor (front)
D2 M42 W/20 : AV control unit E3 M143 B/6 : Air mix door motor (passenger)
D2 M43 W/12 : AV control unit C1 M144 B/6 : Defroster door motor
D2 M44 W/32 : AV control unit E3 M146 GR/2 : Intake sensor
D3 M45 W/40 : AV control unit D3 M147B/6 : Air mix doo r motor (driver)
D2 M46 W/32 : AV control unit D2 M148 W/4 : Headlamp aiming switch
D2 M49 L/26 : A/C auto AMP D3 M149 W/4 : Clock
D2 M50 B/26 : A/C auto AMP B1 M150 W/2 : Ignition keyhole illumination
B3 M51 L/4 : Trailer tow relay 1 G4 M157 W/20 : To B161
B2 M52 W/2 : Combination switch (spiral cable) A3 M158 W/10 : To D3
D3 M53 B/3 : Front power socket LH Console sub-harness
E3 M54 B/3 : Front power socket RH (for cigarette
lighter) D4 M201 W/16 : To M56
D2 M55 W/4 : Hazard switch D4 M202 BR/24 : To M64
Revision: March 2010 2008 QX56

PG
HARNESSPG-43
< COMPONENT DIAGNOSIS >
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D4 M56 W/16 : To M201
D4 M203 W/12 : A/T shift selector
A3 M57 — : Body ground D5 M205 W/32 : DVD player
F2 M58 B/6 : Intake door motor D5 M207 BR/20 : Console power socket
F3 M59 BR/2 : Glove box lamp C4 M208 BR/20 : To M69
G3 M60 W/6 : Fuse block (J/B) C5 M209 W/2: Inside key antenna 2 (rear of center
console)
C3 M61 — : Body ground C4 M210 GR/2: Inside key antenna 3 (front of center
console)
F4 M62 B/2 : Front blower motor C4 M212 W/6 : Rear heated seat switch LH
D4 M63 BR/20 : To M251 C4 M213 BR/6 : Rear heated seat switch RH
D4 M64 BR/24 : To M202 Console switch sub-harness
F2 M65 W/4 : To M301 D4 M251 BR/20 : To M63
G3 M66 BR/1 : To E33 D4 M252 BR/6 : Front heated seat switch RH
C3 M69 BR/20 : To M208 C4 M253 GR/6 : VDC OFF switch
A2 M70 W/40 : Intelligent key unit C3 M255 W/6 : Front heated seat switch LH
A2 M71 L/4 : Heated steering relay C4 M256 B/2 : A/T shift selector
D3 M73 BR/6 : Back-up lamp relay C4 M260 W/6 : Heated steering wheel switch
G3 M74 BR/24 : To D102 Optical sensor sub-harness
G3 M75 W/10 : To D101 F1 M301 W/4 : To M65
A3 M76 W/6 : Electric brake (pre-wiring) D1 M302 B/4 : Optical sensor
E2 M77 Y/4 : Front passenger air bag module
(service replacement) Antenna amp. sub-harness
G3 M78 BR/2 : To M550 D3 M550 BR/2 : To M78
E2 M79 — : Body ground D3 M551 BR/3 : To M601
C1 M80 B/2 : Resistor D3 M601 GR/3 : To M551
E3 M81 GR/10 : Shift lock control unit D3 M602 W/2 : Antenna amp.
A3 M82 GR/2 : Circuit breaker-2
Revision: March 2010 2008 QX56