Infiniti EX35. Manual — part 331
C1105, C1106, C1107, C1108 WHEEL SENSOR
BRC-39
< COMPONENT DIAGNOSIS >
[VDC/TCS/ABS]
C
D
E
G
H
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L
M
A
B
BRC
N
O
P
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.)
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.
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-40
< COMPONENT DIAGNOSIS >
[VDC/TCS/ABS]
C1105, C1106, C1107, C1108 WHEEL SENSOR
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-37, "Component Inspection"
Is the inspection result normal?
YES
>> Replace ABS actuator and electric unit (control unit).
NO
>> Repair or replace damaged parts.
Component Inspection
INFOID:0000000003430123
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:0000000003430124
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)
C1109 POWER AND GROUND SYSTEM
BRC-41
< COMPONENT DIAGNOSIS >
[VDC/TCS/ABS]
C
D
E
G
H
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J
K
L
M
A
B
BRC
N
O
P
C1109 POWER AND GROUND SYSTEM
Description
INFOID:0000000003132886
Supplies electric power to the ABS actuator and electric unit (control unit).
DTC Logic
INFOID:0000000003132887
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC REPRODUCTION PROCEDURE
1.
Turn the ignition switch OFF to ON.
2.
Perform ABS actuator and electric unit (control unit) self-diagnosis.
Is DTC “C1109” detected?
YES
>> Proceed to diagnosis procedure. Refer to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000003132888
1.
CHECK CONNECTOR
1.
Turn the ignition switch OFF.
2.
Disconnect ABS actuator and electric unit (control unit) connector.
3.
Check terminal for deformation, disconnection, looseness, etc.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace damaged parts.
2.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY CIRCUIT
1.
Check the voltage between ABS actuator and electric unit (control unit) harness connector and ground.
2.
Check 30A fusible link (L).
3.
Check the continuity between ABS actuator and electric unit (control unit) harness connector and battery
positive terminal.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace damaged parts. (Check ABS earth bolt for tightness and corrosion.)
3.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) GROUND CIRCUIT
Check the continuity between ABS actuator and electric unit (control unit) harness connector and ground.
DTC
Display item
Malfunction detected condition
Possible cause
C1109
BATTERY VOLTAGE
[ABNORMAL]
When the ABS actuator and electric unit (control unit)
power supply voltage is lower than normal.
• Harness or connector
• ABS actuator and electric unit
(control unit)
ABS actuator and electric unit (control unit)
—
Voltage
Connector
Terminal
E41
3
Ground
Battery voltage
ABS actuator and electric unit (control unit)
—
Continuity
Connector
Terminal
E41
3
Battery positive
terminal
Existed
BRC-42
< COMPONENT DIAGNOSIS >
[VDC/TCS/ABS]
C1109 POWER AND GROUND SYSTEM
Is the inspection result normal?
YES
>> Replace ABS actuator and electric unit (control unit).
NO
>> Repair or replace damaged parts. (Check ABS earth bolt for tightness and corrosion.)
Special Repair Requirement
INFOID:0000000003430135
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
ABS actuator and electric unit (control unit)
—
Continuity
Connector
Terminal
E41
1
Ground
Existed
4
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