2008 INFINITI FX35 check engine

BRAKE BOOSTERBR-15
< SERVICE INFORMATION >
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CAUTION:
 Be careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is
splashed on painted surfaces of body, immediately wipe it off and them wash it away with water
immediately.
 Be careful not to deform or bend brake tube while removing and installing brake booster.
 Replace clevis pin if it is damaged.
 Be careful not to damage brake booster stud bolt thr eads. If brake booster is tilted or inclined during
installation, dash panel may damage the threads.
 Install the check valve in the correct direction.
1. Remove vacuum hose from brake booster. Refer to BR-16
.
2. Remove brake master cylinder. Refer to BR-12, "
Removal and Installation".
3. Disconnect harness connector from brake booster assembly. (ICC model)
4. Remove snap pin and clevis pin from inside the vehicle. Refer to BR-6, "
Component".
5. Remove nuts from brake booster and brake pedal bracket.
6. Remove brake booster assembly from engine room.
INSPECTION AFTER REMOVAL
Output Rod Length Inspection
1. Using a handy vacuum pump, apply a vacuum of –66.7 kPa (– 500 mmHg, –19.69 inHg) to brake booster.
2. Check output rod length.
INSTALLATION
1. Loosen lock nut to adjust input r od length so that the length “B”
(shown in the figure) satisfies the specified value.
2. After adjusting “B”, temporarily tighten lock nut to install brake booster assembly to the vehicle. At this time, make sure to
install a gasket between brake booster assembly and the engine
room.
3. Connect brake pedal with clevis of input rod.
4. Install brake pedal bracket mounting nuts and bolt and tighten them to the specified torque. BR-6, "
Component".
5. Install brake tube from brake master cylinder to ABS actuator. Refer to BR-10, "
Hydraulic Circuit".
6. Install master cylinder to booster assembly. Refer to BR-12, "
Removal and Installation".
7. Adjust the height and play of brake pedal. BR-5, "
Inspection and Adjustment".
8. Tighten lock nut of input rod to the specified torque. Refer to BR-14, "
Component".
9. Bleed air. Refer to BR-8, "
Bleeding Brake System".
Standard dimension when
applying a vacuum of
− 66.7 kPa ( −500 mmHg, −19.69 inHg):
15.6 − 15.9 mm (0.614 − 0.626 in)
SFIA2146E
Length “B” : 126.5 mm (4.98 in)
SGIA0060E
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BR-16
< SERVICE INFORMATION >
VACUUM LINES
VACUUM LINES
ComponentINFOID:0000000001327624
Removal and InstallationINFOID:0000000001327625
CAUTION:
 Because vacuum hose contains a check valve, it must be installed in the correct direction. Refer to
the stamp or label to confirm co rrect installation. The brake booster will not ope rate normally if hose
is installed in the wrong direction.
 Insert vacuum hose for at least 24 mm (0.94 in).
 Do not use lubricating oil during assembly.
InspectionINFOID:0000000001327626
VISUAL INSPECTION
Check for improper assembly, damage and deterioration.
CHECK VALVE INSPECTION
1. Clamp 2. Vacuum hose 3. Clamp
4. Vacuum piping 5. Clamp 6. Engine direction indicator
7. Vacuum hose (Build in check valve) 8. Clamp 9. Brake booster
SFIA1134E
SBR225B
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VACUUM LINESBR-17
< SERVICE INFORMATION >
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Airtightness Inspection
Use a handy vacuum pump to check.
When connected to booster side (1): Vacuum decrease should be within 1.3 kPa
(10 mmHg, 0.39 inHg) for 15 seconds under a
vacuum of –66.7 kPa (–500 mmHg, –19.69 in-
Hg)
When connected to engine side (2): No vacuum will be applied
SFIA1306E
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BR-30
< SERVICE INFORMATION >
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
General SpecificationINFOID:0000000001327639
Unit: mm (in)
Brake PedalINFOID:0000000001327640
Brake BoosterINFOID:0000000001327641
Vacuum type
Check ValveINFOID:0000000001327642
Front Disc BrakeINFOID:0000000001327643
Rear Disc BrakeINFOID:0000000001327644
Front brakeRotor outer diameter
× thickness 320 × 34 (12.598 × 1.339)
Pad length × width × thickness 130.0 × 50.0 × 11.0 (5.118 × 1.969 × 0.433)
Cylinder bore diameter 45.0 (1.772) × 2
Rear brake Rotor outer diameter
× thickness 308 × 16 (12.13 × 0.63)
Pad length × width × thickness 83.0 × 33.0 × 8.5 (3.268 × 1.299 × 0.335)
Cylinder bore diameter 42.86 (1.6874)
Master cylinder Cylinder bore diameter 25.4 (1.00)
Control valve Valve model Electric brake force distribution
Brake booster Diaphragm diameter Primary 228.5 (9.0)
Secondary 203.0 (8.0)
Recommended brake fluid DOT 3
Brake pedal height (from dash lower panel top surface) 161.5 − 171.5 mm (6.358 − 6.752 in)
Depressed pedal height
[under a force of 490 N (50 kg, 110 lb) with engine running] More than 95 mm (3.74 in)
Clearance between stopper rubber and the threaded end of stop lamp
switch and ASCD cancel switch (or brake switch) 0.74
− 1.96 mm (0.0291 − 0.0772 in)
Pedal play 3 − 11 mm (0.12 − 0.43 in)
Output rod length 15.6 − 15.9 mm (0.614 − 0.626 in)
Input rod length 126.5 mm (4.98 in)
Vacuum leakage
[at a vacuum of –66.7 kPa (–500 mmHg, –19.69 inHg)]Within vacuum of 1.3 kPa (10 mmHg, 0.39 inHg) for 15
seconds
Brake padStandard thickness 11.0 mm (0.433 in)
Repair limit thickness 2.0 mm (0.079 in)
Disc rotor Standard thickness 34.0 mm (1.339 in)
Wear limit 32.0 mm (1.260 in)
Maximum uneven wear (measured at 8 positions) 0.015mm (0.0006 in) or less
Runout limit (with the disc rotor attached to the vehicle) 0.04 mm (0.0016 in) or less
Brake pad
Standard thickness 8.5 mm (0.335 in)
Repair limit thickness 2.0 mm (0.079 in)
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PRECAUTIONSBRC-5
< SERVICE INFORMATION > [VDC/TCS/ABS]
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PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001612923
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty 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 “SUPPLEMENTAL RESTRAINT SYS-
TEM” and “SEAT BELTS” of this Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, 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 in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SUPPLEMEN TAL RESTRAINT SYSTEM”.
 Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
Precaution for Brake SystemINFOID:0000000001327654
 Recommended fluid is brake fluid “DOT 3”. Refer to MA-9.
 Do not reuse drained brake fluid.
 Be careful not to splash brake fluid on painted areas such as body. If brake fluid is splashed, wipe it off and flush area with water immediately.
 Do not use mineral oils such as gasoline or kerosene to clean. They will ruin rubber parts and cause improper operation.
 Using a flare nut crowfoot and torque wrench, securely tighten brake tube flare nuts.
 Brake system is an important safe ty part. If a brake fluid leak is
detected, always disassemble the affected part. If a malfunction is
detected, replace part with a new one.
 Before working, turn ignition switch OFF and disconnect electrical
connectors of ABS actuator and elec tric unit (control unit) or bat-
tery negative terminal.
 When installing brake piping, be sure to check torque.
WARNING:
Clean brake pads and shoes with a waste cloth, then wipe with
a dust collector.
Precaution for Brake ControlINFOID:0000000001327655
 During VDC/TCS/ABS operation, brake pedal lightly vi brates and a mechanical noise may be heard. This is
normal.
 Just after starting vehicle after turning ignition switch ON, brake pedal may vibrate or motor operating noise
may be heard from engine room. This is a normal status of operation check.
 Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel, or
snow-covered (fresh, deep snow) roads.
 When an error is indicated by ABS or another warning lamp, collect all necessary information from customer
(what symptoms are present under what conditions) and check for simple causes before starting diagnostic
servicing. Besides electrical system inspection, c heck booster operation, brake fluid level, and fluid leaks.
 If tire size and type are used in an improper combinat ion, or brake pads are not Genuine NISSAN parts,
stopping distance or steering stability may deteriorate.
 If there is a radio, antenna, or antenna lead-in wire (including wiring) near control module, VDC/TCS/ABS
function may have a malfunction or error.
 If aftermarket parts (car stereo, CD player, etc.) have been installed, check for incidents such as harness
pinches, open circuits, and improper wiring.
SBR686C
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BRC-10
< SERVICE INFORMATION >[VDC/TCS/ABS]
SYSTEM DESCRIPTION
SYSTEM DESCRIPTION
SchematicINFOID:0000000001327660
FunctionsINFOID:0000000001327661
VDC
 In addition to the TCS/ABS function, the driver
steering amount and brake operation amount are detected
from steering angle sensor and pressure sensor, and the vehicle's driving status (amount of under steering /
over steering) is determined from information from G s ensor, wheel sensor, etc., and this information is used
to improve vehicle stability by controlling the braking and engine power to all four wheels.
 SLIP indicator lamp flashes to inform the driver of VDC operation.
 During VDC operation, body and brake pedal lightly vibrate and mechanical noises may be heard. This is
normal.
 ABS warning lamp, VDC OFF indicator lamp, and SLIP indicator lamp might turn on when vehicle is subject
to strong shaking or large vibration, such as when vehi cle is on a turn table, a ship or a steep slope such as
bank while engine is running. In this case, restart engine on a normal road, and if ABS warning lamp, VDC
OFF indicator lamp, and SLIP indicator lamp turn off, there is no malfunction.
TCS
 The wheel spin of the drive wheels is detected by ABS actuator and electric unit (control unit) from the wheel
speed signals from four wheels, so if wheel spin occurs , drive wheel right and left brake fluid pressure con-
trol and engine fuel cut are performed while throttle value is restricted to reduce the engi\
ne torque and
decrease the amount of wheel spin. In addition, the degree throttle is opened is controlled to achieve the
optimum engine torque.
 Depending on road circumstances, the driver may have a sluggish feel. This is normal, because the opti-
mum traction has the highest priority under TCS operation.
 TCS may be activated any time vehicle suddenly accelerates, suddenly down/upshifts, or is driven on a road with a varying surface friction coefficient.
 During TCS operation, it informs a driver of sy stem operation by flashing SLIP indicator lamp.
ABS
 The Anti-Lock Braking System is a function that detec ts wheel revolution while braking, and it improves han-
dling stability during sudden braking by electrically prev enting 4 wheel lock. Maneuverability is also improved
for avoiding obstacles.
 If the electrical system malfunc tions, then the fail-safe function star ts, the ABS becomes inoperative, and
ABS warning lamp turns on.
 Electrical system diagnosis by CONSULT-III is available.
 During ABS operation, brake pedal lightly vibrates and a mechanical noise may be heard. This is normal.
 When starting engine, or just after starting vehicle, brake pedal may vibrate or motor operating noises may be heard from engine compartment. This is a normal status of operation check.
SFIA1160E
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SYSTEM DESCRIPTIONBRC-11
< SERVICE INFORMATION > [VDC/TCS/ABS]
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 Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel, or
snow-covered (fresh, deep snow) roads.
EBD
 The Electronic Brake Distribution is a function that detects subtle slippages between front and rear wheels
during braking, and it improves handling stability by elec tronically controlling the brake fluid pressure which
results in reduced rear wheel slippage.
 In case of electrical system malfunction, the fail- safe function is activated, EBD and ABS becomes inopera-
tive, and ABS warning lamp and brake warning lamp are turned on.
 Electrical system diagnosis by CONSULT-III is available.
 During EBD operation, brake pedal lightly vibrates and a mechanical noise may be heard. This is normal.
 When starting engine, or just after starting vehicle, brake pedal may vibrate or motor operating noises may
be heard from engine compartment. This is a normal status of operation check.
 Stopping distance may be longer than that of vehicles without EBD when vehicle drives on rough, gravel, or
snow-covered (fresh, deep snow) roads.
Fail-Safe FunctionINFOID:0000000001327662
VDC / TCS SYSTEM
In case of malfunction in the VDC/TCS system, VDC O FF indicator lamp and SLIP indicator lamp are turned
on, and the condition of vehicle is the same as the c ondition of vehicles without VDC/TCS system. In case of
malfunction in the VDC/TCS system, the ABS control c ontinues to operate normally without VDC/TCS control.
CAUTION:
If the fail-safe function is acti vated, then perform the self-diagnos is for VDC/TCS/ABS control system.
ABS, EBD SYSTEM
In case of electrical malfunctions with the ABS, ABS warning lamp, VDC OFF indicator lamp and SLIP indica-
tor lamp will turn on. In case of electrical malfunc tions with the EBD, brake warning lamp, ABS warning lamp,
VDC OFF indicator lamp and SLIP indicator lamp wil l turn on. Simultaneously, the VDC/TCS/ABS become one
of the following conditions of the fail-safe function.
 For malfunction of ABS, only the EBD is activated and t he condition of vehicle is the same condition of vehi-
cles without TCS/ABS system.
NOTE:
ABS self-diagnosis sound may be heard. That is a no rmal condition because a self-diagnosis for “Ignition
switch ON” and “The first starting” are being performed.
 For malfunction of EBD, EBD and ABS become inoperative, and the condition of vehicle is the same as the
condition of vehicles wit hout TCS/ABS, EBD system.
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TROUBLE DIAGNOSISBRC-27
< SERVICE INFORMATION > [VDC/TCS/ABS]
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DISPLAY ITEM LIST
Self-diagnostic item Malfunction detecting condition Check system
RR RH SENSOR- 1
[C1101] (Note 1) Circuit of rear RH wheel sensor is open, shorted or sensor power volt-
age is unusual. BRC-34, "
DTC C1101 RR RH
SENSOR-1"
RR LH SENSOR- 1
[C1102] (Note 1)
Circuit of rear LH wheel sensor is open, shorted or sensor power volt-
age is unusual. BRC-35, "DTC C1102 RR LH
SENSOR-1"
FR RH SENSOR- 1
[C1103] (Note 1)Circuit of front RH wheel sensor is open, shorted or sensor power volt-
age is unusual. BRC-35, "DTC C1103 FR RH
SENSOR-1"
FR LH SENSOR- 1
[C1104] (Note 1)Circuit of front LH wheel sensor is open, shorted or sensor power volt-
age is unusual. BRC-35, "DTC C1104 FR LH
SENSOR-1"
RR RH SENSOR- 2
[C1105] (Note 1)
ABS actuator and electric unit (control unit) can not identify sensor puls-
es, because of large gap between wheel sensor and sensor rotor. BRC-36, "DTC C1105 RR RH
SENSOR-2"
RR LH SENSOR- 2
[C1106] (Note 1)ABS actuator and electric unit (control unit) can not identify sensor puls-
es, because of large gap between wheel sensor and sensor rotor. BRC-36, "DTC C1106 RR LH
SENSOR-2"
FR RH SENSOR- 2
[C1107] (Note 1)ABS actuator and electric unit (control unit) can not identify sensor puls-
es, because of large gap between wheel sensor and sensor rotor. BRC-36, "DTC C1107 FR RH
SENSOR-2"
FR LH SENSOR- 2
[C1108] (Note 1)
ABS actuator and electric unit (control unit) can not identify sensor puls-
es, because of large gap between wheel sensor and sensor rotor. BRC-36, "DTC C1108 FR LH
SENSOR-2"
BATTERY VOLTAGE
[ABNORMAL]
[C1109]ABS actuator and electric unit (control unit) power voltage is too low. BRC-36, "DTC C1109 BAT-
TERY VOLTAGE [ABNOR-
MAL]"
CONTROLLER FAILURE
[ C 111 0 ]
Internal malfunction of ABS actuator and electric unit (control unit) BRC-37, "DTC C1110 CON-
TROLLER FAILURE"
PUMP MOTOR
[ C 1111 ] ( N o t e 3 )During actuator motor operation with ON, when actuator motor turns
OFF or when control line for actuator motor relay is open.
BRC-37, "D T C C 1111 P U M P
MOTOR"During actuator motor operation with OFF, when actuator motor turns
ON or when control line for relay is shorted to ground.
G - SENSOR
[C1113] (Note 4) Decel G sensor is malfunctioning, or signal line of decel G sensor is
open or shorted. BRC-38, "
DTC C1113 G-SEN-
SOR"
ABS SENSOR
[ABNORMAL SIGNAL]
[C1115] (Note 1)Wheel sensor input is malfunction. BRC-39, "DTC C1115 ABS
SENSOR [ABNORMAL SIG-
NAL]"
STOP LAMP SW
[ C 111 6 ]
Stop lamp switch circuit is open or shorted. BRC-39, "DTC C1116 STOP
LAMP SW"
FR LH IN ABS SOL
[C1120]Circuit of front LH IN ABS solenoid is open or shorted, or control line is
open or shorted to power supply or ground. BRC-40, "DTC C1120 FR LH IN
ABS SOL"
FR LH OUT ABS SOL
[C1121]Circuit of front LH OUT ABS solenoid is
open or shorted, or control line
is open or shorted to power supply or ground. BRC-41, "DTC C1121 FR LH
OUT ABS SOL"
FR RH IN ABS SOL
[C1122]Circuit of front RH IN ABS solenoid is op
en or shorted, or control line is
open or shorted to power supply or ground. BRC-41, "DTC C1122 FR RH IN
ABS SOL"
FR RH OUT ABS SOL
[C1123]
Circuit of front RH OUT ABS solenoid is
open or shorted, or control line
is open or shorted to power supply or ground. BRC-42, "DTC C1123 FR RH
OUT ABS SOL"
RR LH IN ABS SOL
[C1124]Circuit of rear LH IN ABS solenoid is open or shorted, or control line is
open or shorted to power supply or ground. BRC-42, "DTC C1124 RR LH IN
ABS SOL"
RR LH OUT ABS SOL
[C1125] Circuit of rear LH OUT ABS solenoid is open or shorted, or control line
is open or shorted to power supply or ground. BRC-42, "DTC C1125 RR LH
OUT ABS SOL"
RR RH IN ABS SOL
[C1126]
Circuit of rear RH IN ABS solenoid is
open or shorted, or control line is
open or shorted to power supply or ground. BRC-42, "DTC C1126 RR RH IN
ABS SOL"
RR RH OUT ABS SOL
[C1127]Circuit of rear RH OUT ABS solenoid is open or shorted, or control line
is open or shorted to power supply or ground. BRC-42, "DTC C1127 RR RH
OUT ABS SOL"
ENGINE SIGNAL 1
[C1130]Based on the signal from ECM, ABS ac
tuator and electric unit (control
unit) judges that engine fuel cut system is malfunctioning. BRC-42, "DTC C1130 ENGINE
SIGNAL 1"
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