Page 863 of 1575

2007 > 2.7L V6 GASOLINE >
TROUBLESHOOTING
PROBLEM SYMPTOMS TABLE
Symptom Suspect Area Reference
Lower pedal or
spongy pedal a.
Brake system (Fluid leaks)
b. Brake system (Air in)
c. Piston seals (Worn or damaged)
d. Rear brake shoe clearance(Out of adjustment)
e. Master cylinder (Inoperative) repair
air·bleed replaceadjust
replace
Brake drag a.Brake pedal freeplay (Minimum)
b. Parking brake lever travel (Out of adjustment)
c. Parking brake wire (Sticking)
d. Rear brake shoe clearance(Out of adjustment)
e. Pad or lining (Cracked or distorted)
f. Piston (Stuck)
g. Piston (Frozen)
h. Anchor or Return spring (Inoperative)
i. Booster system (Vacuum leaks)
j. Master cylinder (Inoperative) adjust
adjust
repair
adjust
replace
replace
replace
replace repair
replace
Brake pull a.Piston (Sticking)
b. Pad or lining (Oily)
c. Piston (Frozen)
d. Disc (Scored)
e. Pad or lining (Cracked or distorted) replace
replace
replace
replace
replace
Hard pedal but brake
inefficient a.
Brake system (Fluid leaks)
b. Brake system (Air in)
c. Pad or lining (Worn)
d. Pad or lining (Cracked or distorted)
e. Rear brake shoe clearance(Out of adjustment)
f. Pad or lining (Oily)
g. Pad or lining (Glazed)
h. Disc (Scored)
i. Booster system (Vacuum leaks) repair
air·bleed replace
replaceadjust
adjust
replace
replace repair
Noise from brake a.Pad or lining (Cracked or distorted)
b. Installation bolt (Loosen)
c. Disc (Scored)
d. Sliding pin (Worn)
e. Pad or lining (Dirty)
f. Pad or lining (Glazed)
g. Anchor or Return spring (Faulty)
h. Brake pad shim (Damage)
i. Shoe hold- down spring (Damage) replace
adjust
replace
replace clean
replace
replace
replace
replace
Brake fades a.master cylinder replace
Brake vibration,
pulsation a.
brake booster
b. pedal free play
c. master cylinder
d. caliper replace
adjust
replace
replace
replace
Page 865 of 1575

2007 > 2.7L V6 GASOLINE >
SPECIFICATIONS
Item Specification
Master cylinder
· Type
· I.D. mm(in)
· Piston stroke mm(in)
· Fluid level warning sensor Tandem type
26.99/(1.063)
30(1.18)
Provided
Brake booster
· Type
· Boosting ratio 8 + 9 in Tandem
9.0 : 1
Front brake(Disc)
· Type
· Disc O.D.
· Disc thickness
· Pad thickness
· Cylinder type
· Cylinder I.D. Floating type with ventilated disc
298 mm (11.73 in)
28 mm (1.10 in)
10.5 mm (0.41 in)
Double piston
Ø48 mm (Ø1.89 in)
Rear brake(Disc)
· Type
· Disc O.D.
· Disc thickness
· Pad thickness
· Cylinder type
· Cylinder I.D Floating type with solid disc
302 mm (11.89 in)
12 mm (0.47 in)
10 mm (0.39 in)
Single piston
Ø42.9 mm (Ø1.69 in)
Parking brake
· Type
· Actuation
· Drum DIH(Drum in hat)
Foot brake
Ø190 mm (Ø7.48 in)
O.D=Outer Diameter
I.D=Inner Diameter
ABS : Anti- lock Brake System
ESP : Electronic Stability Program
SERVICE STANDARD
Items Standard value
Brake pedal height 192.4 mm(7.57 in)
Brake pedal full stroke 122 mm (4.8 in)
Adjust Brake pedal full stroke 60 mm (2.36 in)
Brake pedal free play 3 ~ 8 mm(0.11 ~ 0.31 in)
Stop lamp switch outer case to pedal stopper clearance 1.0 ~ 1.5 mm (0.04 ~ 0.06 in)
Booster push rod to master cylinder piston clearance 0.6 ~ 1.7(0.02 ~ 0.07 in)(at 500 mmHg)
Parking brake pedal stroke when pedal assembly is depressed with
294N (30kgf, 66lb force) 145 mm (5.71 in) above
Front disc brake pad thickness 10.5 mm (0.41 in)
Front disc thickness 28 mm (1.10 in)
Rear disc brake pad thickness 10 mm (0.39 in)
Rear disc brake disc thickness 12 mm (0.47 in)
Rear parking brake liner thickness 4 mm (0.16 in)
Page 866 of 1575

TIGHTENING TORQUE
ItemsNmkgf.m lb - ft
Master cylinder to booster mounting nut 8 ~ 120.8 ~ 1.2 5.8 ~ 8.7
Brake booster mounting nut 13 ~ 161.3 ~ 1.6 9.4 ~ 11.6
Bleeder screw 7 ~ 130.7 ~ 1.3 5.06 ~ 9.4
Brake tube nut, brake hose 13 ~ 171.3 ~ 1.7 9.4 ~ 12.3
Caliper guide rod bolt (Front) 22 ~ 322.2 ~ 3.215.9 ~ 23.1
Caliper guide rod bolt (Rear) 22 ~ 322.2 ~ 3.215.9 ~ 23.1
Caliper assembly to knuckle (Front) 85 ~ 1008.5 ~ 1061.5 ~ 72.3
Caliper assembly to knuckle (Rear) 50 ~ 605.0 ~ 6.036.2 ~ 43.4
Brake hose to front caliper 25 ~ 302.5 ~ 3.018.1 ~ 21.7
Brake pedal assembly bracket mounting nut 10 ~ 151.0 ~ 1.5 7.2 ~ 10.8
Brake pedal mounting nut 13 ~ 161.3 ~ 1.6 9.4 ~ 11.6
Stop lamp switch mounting nut 8 ~ 100.8 ~ 1.0 5.8 ~ 7.23
Active wheel speed sensor mounting bolt on
the brake plate 7 ~ 10
0.7 ~ 1.0 5.1 ~ 7.2
HECU mounting bracket bolt 17 ~ 261.7 ~ 2.612.3 ~ 18.8
HECU mounting nut 6 ~ 100.6 ~ 1.0 4.3 ~ 7.2
Yaw rate & lateral acceleration sensor bolt 5 ~ 80.5 ~ 0.8 3.62 ~ 5.8
SPECIFICATION (ABS)
Part ItemStandard valueRemark
HECU(Hydraulic and
Electronic Control
Unit) System
4 channel 4 sensor
(Solenoid)
·ABS system:ABS &
EBD control
Type
Motor, valve relay
intergrated type
Operating voltage 8 V ~ 16 V(DC)
Operating temperature - 40 ~ 120 °C
( - 40 ~ 248 °F)
Warning lamp Operating voltage
12 V·ABS W/L:ABS failure
·Brake W/L:Parking,
brake oil, EBD failure
Current consumption 80 mA
Acitve wheel speed
sensor Supply voltage
DC 4.5 ~ 2.0 V
Operating temperature - 40 ~ 150 °C
Output current low 5.9 ~ 8.4 mATyp.7 mA
Output current High 11.8 ~ 16.8 mATyp.14 mA
Frequency range 1 ~ 2500 HZ
Air gap Front
0.15 ~ 1.5 mm Typ.0.7 mm
Rear 0.2 ~ 1.2 mm Typ.0.7 mm
Tone wheel 48 teeth
Output duty 30~70 %
SPECIFICATION(ESP)
Page 867 of 1575

PartItemStandard ValueRemark
HECU(Hydraulic and
Electronic Control
Unit) System
4 channel 4
sensor(Solenoid)
·Total control(ABS,
EBD, TCS, ESP)
Type
Motor, valve relay
intergrated type
Operating voltage 8 V ~ 16 V(DC)
Operating temperature - 40 ~ 120 °C(- 40 ~
248 °F)
Warning lamp Operating voltage
12 V
·ESP Operating Lamp
·ESP Warning Lamp
Current consumption 80 mA
Active wheel speed
sensor Supply voltage
DC 4.5 ~ 20V
Operating temperature - 40 ~ 150 °C
Output current low 5.9 ~ 8.4 mA
Output current high 11.8 ~ 16.8 mA
Tone wheel 48 teeth
Frequency range 1 ~ 2500 HZ
Airgap Front
0.15 ~ 1.5 mm Typ. 0.7 mm
Rear 0.2 ~ 1.2 mm Typ. 0.7 mm
Steering Wheel Angle
Sensor Operating Voltage
8V ~ 16 V
Current Consumption Max 150 mA
Operating Angular velocity Max ± 780 °/sec
Yaw - rate & Lateral G
sensor Operating Voltage
8 V ~ 16 V
Current Consumption Max. 120 mA
Output Voltage high 4.35 V~ 4.65 VTyp. 4.5 V
Output Voltage low 0.35 ~ 0.65 VTyp. 0.5 V
Yaw Sensor Operating Range ±100 ° /s
G Sensor Operating Range ±1.8 G
Reference voltage output 2.464 ~ 2.536 VTyp. 2.5 V
LUBRICANT
Item Recommended lubricantQuantity
Brake fluid DOT 3 or DOT 4As required
Brake pedal bushing and brake pedal bolt Chassis greaseAs required
Parking brake shoe and backing plate contact surfaces Bearing greaseAs required
Caliper guide rod and boot RX - 2 grease0.8 ~ 1.3 g
Rear caliper guide rod and boot Rubber grease0.8 ~ 1.3g
Page 909 of 1575
Parking Brake System
Parking Brake Assembly
Page 913 of 1575
2007 > 2.7L V6 GASOLINE >
REMOVAL
1.Remove the lower panel (A), after loosening the parking lever. (Refer to BD group 'Crash pad')
2.Remove the parking release nose (B).
3. Remove the parking brake switch (A).
[LHD]
[RHD]
4.Remove the parking brake cable (A).
Page 914 of 1575
5.Remove the mounting nuts (A) and bolt (B) of the parking brake bracket.
[LHD]
[RHD]
6.Remove the release cable assembly (C).
7. Remove the damper assembly (A).
[LHD]
Page 915 of 1575
[RHD]
8.Remove the parking brake lamp switch (A).
[LHD]
9.Raise the rear of the vehicle and make sure it is securely supported.
10. Remove the mounting bolt (A) of the parking brake wire bracket from the body.