Infiniti EX35. Manual — part 333
C1114 ACTUATOR RELAY SYSTEM
BRC-47
< 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 ABS actuator and electric unit (control unit).
NO
>> Repair or replace damaged parts.
Component Inspection
INFOID:0000000003430134
1.
CHECK ACTIVE TEST
1.
On “ACTIVE TEST”, select “ABS MOTOR”.
2.
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.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Proceed to diagnosis procedure. Refer to
.
Special Repair Requirement
INFOID:0000000003430138
1.
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform the neutral position adjustment for the steering angle sensor, when replacing the ABS actua-
tor and electric unit (control unit). Refer to
BRC-8, "ADJUSTMENT OF STEERING ANGLE SENSOR NEU-
>> END
Test item
Display item
Display
On
Off
ABS MOTOR
MOTOR RELAY
On
Off
ACTUATOR RLY (Note)
On
On
BRC-48
< COMPONENT DIAGNOSIS >
[VDC/TCS/ABS]
C1115 WHEEL SENSOR
C1115 WHEEL SENSOR
Description
INFOID:0000000003430125
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:0000000003132904
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC REPRODUCTION PROCEDURE
1.
Start the engine and drive the vehicle at 30 km/h (19 MPH) or more for approximately 1 minute.
2.
Perform ABS actuator and electric unit (control unit) self-diagnosis.
Is DTC “C1115” detected?
YES
>> Proceed to diagnosis. Refer to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000003430126
CAUTION:
Do not check between wheel sensor terminals.
1.
CHECK TIRES
Check air pressure, wear and size. Refer to
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace damaged parts.
2.
CHECK SENSOR AND SENSOR ROTOR
• Check sensor rotor for damage.
• Check wheel sensor for damage, disconnection or looseness.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair wheel sensor mount or replace sensor rotor. Then perform the self-diagnosis.
3.
CHECK CONNECTOR
1.
Turn the ignition switch OFF.
2.
Disconnect ABS actuator and electric unit (control unit) connector.
3.
Disconnect wheel sensor connector.
4.
Check terminal to see if it is deformed, disconnected, looseness, etc.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace damaged parts.
4.
CHECK WHEEL SENSOR HARNESS
1.
Check the continuity between ABS actuator and electric unit (control unit) harness connector and wheel
sensor harness connector. (Also check continuity when steering wheel is turned right and left and when
sensor harness inside the wheel house is moved.)
DTC
Display item
Malfunction detected condition
Possible cause
C1115
ABS SENSOR
[ABNORMAL SIGNAL]
When wheel sensor input signal is malfunctioning.
• Harness or connector
• Wheel sensor
• ABS actuator and electric unit
(control unit)
C1115 WHEEL SENSOR
BRC-49
< COMPONENT DIAGNOSIS >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
Measurement terminal for power supply circuit
Measurement terminal for signal circuit
2.
Check the continuity between ABS actuator and electric unit (control unit) harness connector.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace damaged parts.
5.
CHECK WHEEL SENSOR POWER SUPPLY CIRCUIT
1.
Connect ABS actuator and electric unit (control unit) connector.
2.
Turn the ignition switch ON.
CAUTION:
Never start the engine.
3.
Check the voltage between wheel sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace damaged parts.
6.
CHECK DATA MONITOR
1.
Turn the ignition switch OFF.
2.
Connect each wheel sensor connector.
3.
Check wheel sensor signal. Refer to
BRC-50, "Component Inspection"
.
Is the inspection result normal?
YES
>> Replace ABS actuator and electric unit (control unit).
NO
>> Repair or replace damaged parts.
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
Wheel sensor
—
Voltage
Connector
Terminal
E27 (Front RH)
1
Ground
8 V or more
E60 (Front LH)
B33 (Rear RH)
B34 (Rear LH)
BRC-50
< COMPONENT DIAGNOSIS >
[VDC/TCS/ABS]
C1115 WHEEL SENSOR
Component Inspection
INFOID:0000000003430127
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.
NOTE:
Confirm tire pressure is normal.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Proceed to diagnosis procedure. Refer to
.
Special Repair Requirement
INFOID:0000000003430128
1.
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform the neutral position adjustment for the steering angle sensor, when replacing the ABS actua-
tor and electric unit (control unit). Refer to
BRC-8, "ADJUSTMENT OF STEERING ANGLE SENSOR NEU-
>> END
Wheel sensor
Condition
Vehicle speed (DATA MONITOR)
FR LH SENSOR
Vehicle stopped
0 [km/h (MPH)]
Vehicle running
(Note)
Nearly matches the speedometer dis-
play (
±
10% or less)
FR RH SENSOR
Vehicle stopped
0 [km/h (MPH)]
Vehicle running
(Note)
Nearly matches the speedometer dis-
play (
±
10% or less)
RR LH SENSOR
Vehicle stopped
0 [km/h (MPH)]
Vehicle running
(Note)
Nearly matches the speedometer dis-
play (
±
10% or less)
RR RH SENSOR
Vehicle stopped
0 [km/h (MPH)]
Vehicle running
(Note)
Nearly matches the speedometer dis-
play (
±
10% or less)
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