Infiniti QX56 (Z62). Manual — part 146
C1101, C1102, C1103, C1104 WHEEL SENSOR
BRC-69
< DTC/CIRCUIT DIAGNOSIS >
[WITH VDC]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace error-detected parts.
2.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY SYSTEM
Check ABS actuator and electric unit (control unit) power supply system. Refer to
.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace error-detected parts.
3.
CHECK TERMINAL
• Check ABS actuator and electric unit (control unit) pin terminals for damage or loose connection with har-
ness connector.
• Check each wheel sensor pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace error-detected parts.
4.
REPLACE WHEEL SENSOR
With CONSULT-III.
1.
Connect ABS actuator and electric unit (control unit) harness connector.
2.
Replace wheel sensor. Refer to
BRC-134, "FRONT WHEEL SENSOR : Removal and Installation"
BRC-135, "REAR WHEEL SENSOR : Removal and Installation"
3.
Erase Self-diagnosis result for “ABS”.
4.
Turn the ignition switch OFF to ON.
5.
Perform self-diagnosis for “ABS”.
Is DTC “C1101”, “C1102”, “C1103” or “C1104” detected?
YES
>> Replace ABS actuator and electric unit (control unit). Refer to
BRC-137, "Removal and Installa-
.
NO
>> INSPECTION END
BRC-70
< DTC/CIRCUIT DIAGNOSIS >
[WITH VDC]
C1105, C1106, C1107, C1108 WHEEL SENSOR
C1105, C1106, C1107, C1108 WHEEL SENSOR
DTC Logic
INFOID:0000000006222594
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
CHECK DTC DETECTION
With CONSULT-III.
1.
Start engine and drive vehicle at approx. 30 km/h (19 MPH) or more for approx. 1 minute.
2.
Perform self-diagnosis for “ABS”.
Is DTC “C1105”, “C1106”, “C1107” or “C1108” detected?
YES
>> Proceed to diagnosis procedure. Refer to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000006222595
CAUTION:
Never check between wheel sensor harness connector terminals.
1.
CHECK WHEEL SENSOR HARNESS
1.
Turn the ignition switch OFF.
2.
Disconnect ABS actuator and electric unit (control unit) harness connector.
3.
Disconnect wheel sensor harness connector.
4.
Check continuity between ABS actuator and electric unit (control unit) harness connector and the ground.
DTC
Display Item
Malfunction detected condition
Possible causes
C1105
RR RH SENSOR-2
• When power supply voltage of rear RH wheel sen-
sor is low.
• When distance between rear RH wheel sensor and
rear RH wheel sensor rotor is large.
• When installation of rear RH wheel sensor or rear
RH wheel sensor rotor is not normal.
• Harness or connector
• Wheel sensor
• ABS actuator and electric unit
(control unit)
• Sensor rotor
C1106
RR LH SENSOR-2
• When power supply voltage of rear LH wheel sen-
sor is low.
• When distance between rear LH wheel sensor and
rear LH wheel sensor rotor is large.
• When installation of rear LH wheel sensor or rear
LH wheel sensor rotor is not normal.
C1107
FR RH SENSOR-2
• When power supply voltage of front RH wheel sen-
sor is low.
• When distance between front RH wheel sensor
and front RH wheel sensor rotor is large.
• When installation of front RH wheel sensor or front
RH wheel sensor rotor is not normal.
C1108
FR LH SENSOR-2
• When power supply voltage of front LH wheel sen-
sor is low.
• When distance between front LH wheel sensor and
front LH wheel sensor rotor is large.
• When installation of front LH wheel sensor or front
LH wheel sensor rotor is not normal.
C1105, C1106, C1107, C1108 WHEEL SENSOR
BRC-71
< DTC/CIRCUIT DIAGNOSIS >
[WITH VDC]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace error-detected parts.
2.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY SYSTEM
Check ABS actuator and electric unit (control unit) power supply system. Refer to
.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace error-detected parts.
3.
CHECK WHEEL SENSOR
Check wheel sensor for damage, disconnection or looseness.
• Front wheel sensor: Refer to
BRC-134, "FRONT WHEEL SENSOR : Exploded View"
.
• Rear wheel sensor: Refer to
BRC-135, "REAR WHEEL SENSOR : Exploded View"
.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>>
Repair wheel sensor.
• Front wheel sensor: Refer to
BRC-134, "FRONT WHEEL SENSOR : Removal and Installation"
• Rear wheel sensor: Refer to
BRC-135, "REAR WHEEL SENSOR : Removal and Installation"
4.
CHECK TERMINAL
• Check ABS actuator and electric unit (control unit) pin terminals for damage or loose connection with har-
ness connector.
• Check each wheel sensor pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace error-detected parts.
5.
REPLACE WHEEL SENSOR
With CONSULT-III.
1.
Connect ABS actuator and electric unit (control unit) harness connector.
2.
Replace wheel sensor. Refer to
BRC-134, "FRONT WHEEL SENSOR : Removal and Installation"
BRC-135, "REAR WHEEL SENSOR : Removal and Installation"
3.
Erase Self-diagnosis result for “ABS”.
4.
Start the engine. Drive the vehicle at vehicle speed of approx. 30 km/h (19 MPH) for approx. 1 minute.
5.
Perform self-diagnosis for “ABS”.
Is DTC “C1105”, “C1106”, “C1107” or “C1108” detected?
YES
>> Replace ABS actuator and electric unit (control unit). Refer to
BRC-137, "Removal and Installa-
.
NO
>> INSPECTION END
ABS actuator and electric unit (control unit)
—
Continuity
Connector
Terminal
E36
20, 34
Ground
Not existed
33, 19
22, 36
35, 21
BRC-72
< DTC/CIRCUIT DIAGNOSIS >
[WITH VDC]
C1109 POWER AND GROUND SYSTEM
C1109 POWER AND GROUND SYSTEM
Description
INFOID:0000000006222596
Ignition power supply is supplied to ABS actuator and electric unit (control unit).
DTC Logic
INFOID:0000000006222597
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
CHECK DTC DETECTION
With CONSULT-III.
1.
Start the engine. Drive the vehicle at vehicle speed of approx. 10 km/h (6 MPH) or more for approx. 10
seconds.
2.
Perform self-diagnosis for “ABS”
Is DTC “C1109” detected?
YES
>> Proceed to diagnosis procedure. Refer to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000006222598
1.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) IGNITION POWER SUPPLY (1)
1.
Turn the ignition switch OFF.
2.
Disconnect ABS actuator and electric unit (control unit) harness connector.
3.
Check voltage between ABS actuator and electric unit (control unit) harness connector and ground.
4.
Turn the ignition switch ON.
CAUTION:
Never start engine.
5.
Check voltage between ABS actuator and electric unit (control unit) harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) IGNITION POWER SUPPLY CIRCUIT
(1)
1.
Turn the ignition switch OFF.
2.
Check 10A fuse (#57).
3.
Disconnect IPDM E/R harness connector.
DTC
Display Item
Malfunction detected condition
Possible causes
C1109
BATTERY VOLTAGE
[ABNORMAL]
• When ignition voltage is 10 V or less.
• When ignition voltage is 16 V or more.
• Harness or connector
• ABS actuator and electric unit
(control unit)
• Fuse
• Ignition power supply system
• Battery
ABS actuator and electric unit (control unit)
—
Voltage
Connector
Terminal
E36
18
Ground
Approx. 0 V
ABS actuator and electric unit (control unit)
—
Voltage
Connector
Terminal
E36
18
Ground
10
−
16 V
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