Infiniti FX35, FX50 (S51). Manual — part 277
PREVIEW FUNCTION
BRC-139
< SYSTEM DESCRIPTION >
[BRAKE ASSIST]
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Component Parts Location
INFOID:0000000005530055
1.
Preview function warning lamp
2.
ECM
3.
ICC sensor integrated unit
4.
ICC brake hold relay
5.
Booster solenoid/Release switch
6.
Brake pressure sensor
7.
Stop lamp switch
8.
ICC brake switch
9.
ICC warning chime
10. Brake booster control unit
JSFIA0388ZZ
BRC-140
< SYSTEM DESCRIPTION >
[BRAKE ASSIST]
PREVIEW FUNCTION
Component Description
INFOID:0000000005530056
×
: Applicable
*1: Vehicle-to-vehicle distance control mode
*2: Conventional (fixed speed) cruise control mode
*3: IBA system and Brake Assist (With Preview Function)
NOTE:
Only IBA system uses
A.
Combination meter
B.
Behind the glove box
C.
Front bumper (LH)
D.
Engine room (LH)
E.
Inside brake master cylinder cover
F.
Upper side of brake pedal
G.
Instrument driver lower panel (LH)
H.
Luggage room (RH)
Component
Function Description
Description
*1
*2
*3
ICC sensor integrated unit
×
×
×
Refer to
.
ECM
×
×
×
Refer to
.
ABS actuator and electric unit (control
unit)
×
×
×
Refer to
.
BCM
×
Transmits the front wiper request signal to ICC sensor inte-
grated unit via CAN communication.
TCM
×
×
Refer to
.
Unified meter and A/C amp.
×
×
×
Receives the meter display signal, ICC warning lamp signal,
and IBA OFF indicator lamp signal from ICC sensor integrat-
ed unit via CAN communication and transmits them to the
combination meter via the communication line.
Combination meter
×
×
×
Performs the following operations using the signals received
from the unified meter and A/C amp. via the communication
line.
• Displays the ICC system operation status using the meter
display signal.
• Illuminates the ICC system warning lamp using the ICC
warning lamp signal.
• Illuminates the IBA OFF indicator lamp using the IBA OFF
indicator lamp signal.
ICC brake switch
×
×
×
Refer to
.
Stop lamp switch
×
×
×
ICC brake hold relay
×
×
Refer to
.
Brake booster control unit
×
×
×
Refer to
.
Brake booster
×
×
Refer to
.
Brake pressure sensor
×
×
Refer to
.
Booster solenoid/Release switch
×
×
• Refer to
for booster solenoid.
• Refer to
for release switch.
ICC warning chime
×
×
×
Refer to
.
Steering angle sensor
×
Refer to
.
IBA OFF switch
×
NOTE
Refer to
.
PREVIEW FUNCTION
BRC-141
< DTC/CIRCUIT DIAGNOSIS >
[BRAKE ASSIST]
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DTC/CIRCUIT DIAGNOSIS
PREVIEW FUNCTION
Diagnosis Procedure
INFOID:0000000005234674
1.
BRAKE ASSIST (PREVIEW FUNCTION) DIAGNOSIS
When the preview function is not operating properly, the buzzer sounds and the preview function warning lamp
will come on.
NOTE:
The preview function warning lamp shares the ICC system warning lamp.
>> Go to ICC (Full Speed Range). Refer to
.
BRC-142
< SYMPTOM DIAGNOSIS >
[BRAKE ASSIST]
NORMAL OPERATING CONDITION
SYMPTOM DIAGNOSIS
NORMAL OPERATING CONDITION
Description
INFOID:0000000005234675
PRECAUTIONS FOR PREVIEW FUNCTION
• This system is only an aid to assist braking operation and is not a collision warning or avoidance device. It is
the driver
′
s responsibility to stay alert, drive safely and be in control of the vehicle at all times.
• As there is a performance limit to the Preview Function, never rely solely on this system. This system does
not correct careless inattentive or absent-minded driving, or overcome poor visibility in rain, fog, or other bad
weather. Reduce vehicle speed by depressing the brake, in order to maintain a safe distance between vehi-
cles.
• The system may not detect a vehicle ahead, depending on road or weather conditions. While the vehicle still
travels and the Brake Assist System operates under normal conditions, the Preview Function may operate
improperly under the following conditions:
- When rain, snow or dirt adhere to the system sensor
- When strong light (for example, at sunrise or sunset) is directly shining on the front of the vehicle
- Winding or hilly roads may cause the sensor to temporarily not detect a vehicle in the same lane or may
detect objects or vehicles in other lanes.
- Vehicle position in the lane may cause the sensor to temporarily not detect a vehicle in the same lane or may
detect objects or vehicles in other lanes.
• The system will not detect:
- Pedestrians or objects in the roadway
- Oncoming vehicles in the same lane
- Motorcycles traveling offset in the travel lane as illustrated
• When the Preview Function operates, the brake pedal may move
slightly and may make a small noise. This is not a system malfunc-
tion.
JSFIA0390ZZ
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