Infiniti G37 Coupe. Manual — part 264
BRC-30
< FUNCTION DIAGNOSIS >
[VDC/TCS/ABS]
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
A brief moment of On/Off condition occurs every 20 seconds after ignition switch turned ON. This is not malfunction because it is an
operation for checking.
ABS MOTOR
• Touch “On” and “Off” on screen. Make sure motor relay and actuator relay operates as shown in table below.
NOTE:
A brief moment of On/Off condition occurs every 20 seconds after ignition switch turned ON. This is not malfunction because it is an
operation for checking.
Test item
Display item
Display
On
Off
ABS MOTOR
MOTOR RELAY
On
Off
ACTUATOR RLY (Note)
On
On
C1101, C1102, C1103, C1104 WHEEL SENSOR-1
BRC-31
< COMPONENT DIAGNOSIS >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
COMPONENT DIAGNOSIS
C1101, C1102, C1103, C1104 WHEEL SENSOR-1
Description
INFOID:0000000001635040
When the sensor rotor rotates, the magnetic field changes. It converts the magnetic field changes to current
signals (rectangular wave) and transmits them to the ABS actuator and electric unit (control unit).
DTC Logic
INFOID:0000000001635041
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
CHECK SELF-DIAGNOSIS RESULTS
Check the self-diagnosis results.
Is above displayed on the self-diagnosis display?
YES
>> Proceed to diagnosis procedure. Refer to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000001665601
CAUTION:
Do not check between wheel sensor terminals.
1.
CHECK TIRES
Check air pressure, wear and size.
Are air pressure, wear and size within standard?
YES
>> GO TO 2.
NO
>> Adjust air pressure, or replace tire.
2.
CHECK SENSOR AND SENSOR ROTOR
• Check sensor rotor for damage.
• Check wheel sensor for damage, disconnection or looseness.
Are the sensor and sensor rotor normal?
YES
>> GO TO 3.
NO
>> Repair wheel sensor mount or replace sensor rotor. Then perform the self-diagnosis.
3.
CHECK CONNECTOR
1.
Turn ignition switch OFF.
DTC
Display item
Malfunction detected condition
Possible cause
C1101
RR RH SENSOR-1
Circuit of rear RH wheel sensor is open. Or when the sen-
sor power voltage is outside the standard.
• Harness or connector
• Wheel sensor
• ABS actuator and electric unit
(control unit)
C1102
RR LH SENSOR-1
Circuit of rear LH wheel sensor is open. Or when the sen-
sor power voltage is outside the standard.
C1103
FR RH SENSOR-1
Circuit of front RH wheel sensor is open. Or when the
sensor power voltage is outside the standard.
C1104
FR LH SENSOR-1
Circuit of front LH wheel sensor is open. Or when the
sensor power voltage is outside the standard.
Self-diagnosis results
RR RH SENSOR-1
RR LH SENSOR-1
FR RH SENSOR-1
FR LH SENSOR-1
BRC-32
< COMPONENT DIAGNOSIS >
[VDC/TCS/ABS]
C1101, C1102, C1103, C1104 WHEEL SENSOR-1
2.
Disconnect ABS actuator and electric unit (control unit) connector.
3.
Disconnect malfunctioning wheel sensor connector.
4.
Check terminal to see if it is deformed, disconnected, loose, etc., Repair or replace it if any malfunction
condition is found.
5.
Reconnect connectors and then perform the self-diagnosis.
Is any item indicated on the self-diagnosis display?
YES
>> GO TO 4.
NO
>> Poor connection of connector terminal. Repair or replace connector.
4.
CHECK WHEEL SENSOR HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect ABS actuator and electric unit (control unit) connector.
3.
Disconnect malfunctioning wheel sensor connector.
4.
Check continuity between terminals. (Also check continuity when steering wheel is turned right and left
and when sensor harness inside the wheel house is moved.)
Measurement terminal for power supply circuit
Measurement terminal for signal circuit
Measurement terminal for ground circuit
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace malfunctioning components.
5.
CHECK WHEEL SENSOR POWER SUPPLY CIRCUIT
1.
Disconnect malfunctioning wheel sensor connector.
2.
Turn ignition switch ON.
3.
Check voltage between wheel sensor harness connector power supply terminal and ground.
ABS actuator and electric unit (control unit)
Wheel sensor
Continuity
Connector
Terminal
Connector
Terminal
E41
9
E27 (Front RH)
1
Existed
26
E60 (Front LH)
7
B33 (Rear RH)
6
B34 (Rear LH)
ABS actuator and electric unit (control unit)
Wheel sensor
Continuity
Connector
Terminal
Connector
Terminal
E41
10
E27 (Front RH)
2
Existed
5
E60 (Front LH)
29
B33 (Rear RH)
27
B34 (Rear LH)
ABS actuator and electric unit (control unit)
Continuity
Connector
Terminal
Connector
Terminal
E41
9, 10
E41
1, 4
Not existed
26, 5
7, 29
6, 27
C1101, C1102, C1103, C1104 WHEEL SENSOR-1
BRC-33
< COMPONENT DIAGNOSIS >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
Is the inspection result normal?
YES
>> Replace applicable wheel sensor.
NO
>> Replace ABS actuator and electric unit (control unit).
Component Inspection
INFOID:0000000001665602
1.
CHECK DATA MONITOR
On “DATA MONITOR”, select “FR LH SENSOR”, “FR RH SENSOR”, “RR LH SENSOR”, and “RR RH SEN-
SOR”, and check the vehicle speed.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Go to diagnosis procedure. Refer to
Special Repair Requirement
INFOID:0000000001665603
1.
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform the “ST ANG SEN ADJUSTMENT” in “WORK SUPPORT”, when replacing the ABS actuator
and electric unit (control unit).
>> END
Wheel sensor
—
Voltage
Connector
Terminal
E27 (Front RH)
1
Ground
8 V or more
E60 (Front LH)
B33 (Rear RH)
B34 (Rear LH)
Wheel sensor
Vehicle speed (DATA MONITOR)
FR LH SENSOR
Nearly matches the speedometer dis-
play (
±
10% or less)
FR RH SENSOR
RR LH SENSOR
RR RH SENSOR
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст