Infiniti G35 (V35). Manual — part 248
TROUBLE DIAGNOSIS FOR SYSTEM
BRC-53
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
VDC/TCS/ABS ACTUATOR
Actuator Operation Inspection
1.
Turn ignition switch OFF, apply a voltage of 12 V between VDC
relay box connector E47 terminal 5 and 8, use an oscilloscope
to measure motor voltage at this time (between terminal 4 and
ground), and check motor reverse voltage occurrence time
when operation is stopped.
CAUTION:
●
Above check should be performed after motor relay unit
inspection to make sure relay operates normally.
●
To prevent overheating, do not drive actuator motor more
than 4 seconds.
●
Motor reverse voltage occurrence time is standard when
battery voltage is 12 V and the air temperature is 20
°
C
(68
°
F), and this time is a little shorter when battery voltage
is low or the air temperature is low.
Motor reverse voltage occurrence time:
0.1 second or more
SFIA0690E
BRC-54
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYMPTOMS
TROUBLE DIAGNOSIS FOR SYMPTOMS
PFP:00007
Excessive ABS Function Operation Frequency
NFS000KF
1.
CHECK START
Check brake force distribution.
OK or NG
OK
>> GO TO 2.
NG
>> Check brake system
2.
CHECK FRONT AND REAR AXLE
Make sure there is no excessive play in the front and rear axles.
OK or NG
OK
>> GO TO 3.
NG
>> Repair.
3.
CHECK WHEEL SENSOR
Wheel Sensor Inspection
●
Wheel sensor mount and damage inspection
●
Sensor rotor mount and damage inspection
●
Wheel sensor connector connection inspection
●
Wheel sensor harness inspection
OK or NG
OK
>> GO TO 4.
NG
>>
●
Replace wheel sensor or sensor rotor.
●
Repair harness.
4.
CHECK ABS WARNING LAMP DISPLAY
Make sure the warning lamp turns off approximately 1 sec. After the ignition switch is turned on or when driv-
ing.
OK or NG
OK
>> Normal
NG
>> Perform self-diagnosis. Refer to
.
Unexpected Pedal Reaction
NFS000KG
1.
CHECK BRAKE PEDAL STROKE
Check brake pedal stroke.
Is the stroke too big?
YES
>>
●
Bleed air from the brake piping.
●
Check the brake pedal, brake booster, and master cylinder mount for play, looseness, and
brake system for fluid leaks, etc. If any malfunctions are found, make repair.
NO
>> GO TO 2.
2.
CHECK FUNCTION
Disconnect the VDC/TCS/ABS control unit connector and make sure the braking force is sufficient when the
ABS in not operating. After the inspection, reconnect the connector.
OK or NG
OK
>> GO TO 3. CHECK WHEEL SENSOR. Refer to
BRC-54, "Excessive ABS Function Operation Fre-
NG
>> Check brake system.
TROUBLE DIAGNOSIS FOR SYMPTOMS
BRC-55
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
The Braking Distance Is Long
NFS000KH
CAUTION:
On slippery road surfaces, the stopping distance might be longer with the ABS operating than when
the ABS is not operating.
1.
CHECK FUNCTION
Disconnect VDC/TCS/ABS control unit connector to deactivate ABS. In this condition, check stopping dis-
tance. After inspection, connect connector.
OK or NG
OK
>> GO TO 3. CHECK WHEEL SENSOR. Refer to
BRC-54, "Excessive ABS Function Operation Fre-
NG
>>
●
Bleed air from the brake piping.
●
Check brake system.
The ABS Function Does Not Operate
NFS000KI
CAUTION:
The ABS does not operate when the speed is 10 km/h (6 MPH) or less.
1.
CHECK ABS WARNING LAMP DISPLAY
Make sure the warning lamp turns off approximately 1 second after the ignition switch is turned on or when
driving.
OK or NG
OK
>> GO TO 3. CHECK WHEEL SENSOR. Refer to
BRC-54, "Excessive ABS Function Operation Fre-
NG
>> Perform self-diagnosis. Refer to
BRC-25, "CONSULT-II Functions (ABS)"
Pedal Vibration or ABS Operation Sound Occurs
NFS000KJ
CAUTION:
Under the following conditions, when brake pedal is lightly depressed (just place a foot on it), ABS is
activated and vibration is felt. However, this is normal.
●
When shifting gears
●
When driving on slippery road
●
During cornering at high speed
●
When passing over bumps or grooves [50 mm (1.97 in) or more]
●
When pulling away just after starting engine (at approximately 10 km/h (6MPH) or higher)
1.
SYMPTOM CHECK 1
Check if pedal vibration or operation sound occurs when the engine is started.
OK or NG
OK
>> GO TO 2.
NG
>> Perform self-diagnosis. Refer to
2.
SYMPTOM CHECK 2
Check symptom when electrical component (headlamps, etc.) Switches are operated.
Does the symptom occur when the electrical component (head lamp, etc.) Switches are operated?
YES
>> Check if there is a radio, antenna, antenna lead wire, or wiring close to the control unit (or its wir-
ing), and if there is, move it farther away.
NO
>> GO TO 3. CHECK WHEEL SENSOR. Refer to
BRC-56
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYMPTOMS
Vehicle Jerks During VDC/TCS/ABS Control
NFS000KK
1.
CHECK ENGINE SPEED SIGNAL
Conduct CONSULT-II VDC/TCS/ABS control unit “DATA MONITOR”.
Is engine speed at idle 400 rpm or higher?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK ECM SELF-DIAGNOSIS RESULT ITEM
Perform ECM self-diagnosis.
Are self-diagnosis items displayed?
YES
>> Check the corresponding items. Refer to
in “Engine Control
(EC section)”.
NO
>> GO TO 3.
3.
SYMPTOM CHECK 1
Check if the vehicle jerks during VDC/TCS/ABS control.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 4.
4.
CHECK A/T SELF-DIAGNOSIS RESULTS ITEM
Perform A/T self-diagnosis.
OK or NG
OK
>> GO TO 5.
NG
>> Check the corresponding items. Refer to
in “A/T”.
5.
SYMPTOM CHECK 2
Check if the vehicle jerks during VDC/TCS/ABS control.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 6.
6.
CHECK SELF-DIAGNOSIS RESULT ITEM 1
Conduct self-diagnosis of the VDC/TCS/ABS control unit.
Are self-diagnosis items displayed?
YES
>> Check the corresponding items, make repairs, and re-conduct the VDC/TCS/ABS control unit self-
diagnosis.
NO
>> GO TO 7.
7.
CHECK CONNECTOR
1.
Disconnect the VDC/TCS/ABS control unit and the ECM connectors, check the terminals for deformation,
disconnection, looseness, and so on. If there is an error, repair or replace the connector.
2.
Securely reconnect the connector and conduct self-diagnosis.
OK or NG
OK
>> If the connector terminal contact is loose, damaged, open or shorted, repair or replace the con-
nector terminal.
NG
>> GO TO 8.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст