Nissan Murano Z51. Manual — part 302
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
BRC-31
< SYSTEM DESCRIPTION >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
NOTE:
A brief moment of On/Off condition occurs every 20 seconds after ignition switch turned ON. This is not malfunction because it is a oper-
ation for checking.
ACTIVE TEST MODE
CAUTION:
• Never perform active test while driving vehicle.
• Make sure to completely bleed air from brake system.
• The active test cannot be started when ABS warning lamp, VDC OFF indicator lamp, SLIP indicator
lamp and brake warning lamp is ON.
• ABS warning lamp, VDC OFF indicator lamp, SLIP indicator lamp and brake warning lamp are ON
during active test.
NOTE:
• When active test is performed while depressing the pedal, the pedal depression amount will change. This is
normal. (Only solenoid valve and ABS motor.)
• “TEST IS STOPPED” in “ABS” with CONSULT-III is displayed 10 seconds after operation start.
• After “TEST IS STOPPED” in “ABS” with CONSULT-III is displayed, to perform test again.
Test Item
ABS SOLENOID VALVE
• Select “Up”, “Keep” and “Down” of “ACTIVE TEST” in “ABS” with CONSULT-III. Then use screen monitor to
check that solenoid valve operates as shown in the table below.
*: On for 1 to 2 seconds after the select, and then Off.
NOTE:
A brief moment of On/Off condition occurs every 20 seconds after ignition switch turned ON. This is not malfunction because it is a
operation for checking.
ABS SOLENOID VALVE (ACT)
• Select “Up”, “ACT UP” and “ACT KEEP” of “ACTIVE TEST” in “ABS” with CONSULT-III. Then use screen
monitor to check that solenoid valve operates as shown in the table below.
EBD WARN LAMP
(On/Off)
Brake warning lamp
CRANKING SIG
(On/Off)
Crank operation
4WD FAIL REQ
(On/Off)
AWD fail-safe signal status
2WD/4WD
(2WD/4WD)
Distinguish 2WD and AWD
Monitor item (Unit)
SELECT MONITOR ITEM
Remarks
ECU INPUT
SIGNALS
MAIN SIGNALS
Test item
Display item
Display
Up
Keep
Down
FR RH SOL
FR RH IN SOL
Off
On
On
FR RH OUT SOL
Off
Off
On*
FR LH SOL
FR LH IN SOL
Off
On
On
FR LH OUT SOL
Off
Off
On*
RR RH SOL
RR RH IN SOL
Off
On
On
RR RH OUT SOL
Off
Off
On*
RR LH SOL
RR LH IN SOL
Off
On
On
RR LH OUT SOL
Off
Off
On*
BRC-32
< SYSTEM DESCRIPTION >
[VDC/TCS/ABS]
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
*: On for 1 to 2 seconds after the select, and then Off.
NOTE:
A brief moment of On/Off condition occurs every 20 seconds after ignition switch turned ON. This is not malfunction because it is a
operation for checking.
ABS MOTOR
• Select “On” and “Off” of “ACTIVE TEST” in “ABS” with CONSULT-III. 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 a
operation for checking.
ECU IDENTIFICATION
ABS actuator and electric unit (control unit) part number can be read.
Test item
Display item
Display
Up
ACT UP
ACT KEEP
FR RH ABS SOLENOID
(ACT)
FR RH IN SOL
Off
Off
Off
FR RH OUT SOL
Off
Off
Off
CV1
Off
On
On
SV1
Off
On*
Off
FR LH ABS SOLENOID
(ACT)
FR LH IN SOL
Off
Off
Off
FR LH OUT SOL
Off
Off
Off
CV2
Off
On
On
SV2
Off
On*
Off
RR RH ABS SOLENOID
(ACT)
RR RH IN SOL
Off
Off
Off
RR RH OUT SOL
Off
Off
Off
CV2
Off
On
On
SV2
Off
On*
Off
RR LH ABS SOLENOID
(ACT)
RR LH IN SOL
Off
Off
Off
RR LH OUT SOL
Off
Off
Off
CV1
Off
On
On
SV1
Off
On*
Off
Test item
Display item
Display
On
Off
ABS MOTOR
MOTOR RELAY
On
Off
ACTUATOR RLY
On
On
C1101, C1102, C1103, C1104 WHEEL SENSOR
BRC-33
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
DTC/CIRCUIT DIAGNOSIS
C1101, C1102, C1103, C1104 WHEEL SENSOR
Description
INFOID:0000000005517271
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:0000000005517272
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 self-diagnosis for “ABS” with CONSULT-III.
Is DTC “C1101”, “C1102”, “C1103” or “C1104” detected?
YES
>> Proceed to diagnosis procedure. Refer to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000005517273
CAUTION:
Never check between wheel sensor harness connector terminals.
1.
CHECK TIRE
Check air pressure, wear, and size. Refer to
.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace error-detected parts.
2.
CHECK WHEEL SENSOR AND SENSOR ROTOR
• Check wheel sensor for damage, disconnection or looseness.
• Check sensor rotor for damage.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>>
Repair wheel sensor mount or replace wheel sensor or replace sensor rotor.
• Front wheel sensor: Refer to
BRC-110, "FRONT WHEEL SENSOR : Exploded View"
.
• Rear wheel sensor: Refer to
BRC-111, "REAR WHEEL SENSOR : Exploded View"
.
• Front sensor rotor: Refer to
BRC-112, "FRONT SENSOR ROTOR : Exploded View"
.
• Rear sensor rotor: Refer to
BRC-112, "REAR SENSOR ROTOR : Exploded View"
.
3.
CHECK CONNECTOR
1.
Turn the ignition switch OFF.
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.
DTC
Display item
Malfunction detected condition
Possible cause
C1101
RR RH SENSOR-1
Circuit of rear RH wheel sensor is open or short circuit.
Current signal from sensor is outside limits.
• Harness or connector
• Wheel sensor
• ABS actuator and electric unit
(control unit)
• Sensor rotor
C1102
RR LH SENSOR-1
Circuit of rear LH wheel sensor is open or short circuit.
Current signal from sensor is outside limits.
C1103
FR RH SENSOR-1
Circuit of front RH wheel sensor is open or short circuit.
Current signal from sensor is outside limits.
C1104
FR LH SENSOR-1
Circuit of front LH wheel sensor is open or short circuit.
Current signal from sensor is outside limits.
BRC-34
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
C1101, C1102, C1103, C1104 WHEEL SENSOR
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace error-detected 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 signal circuit
Measurement terminal for power supply 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 error-detected parts.
5.
REPLACE WHEEL SENSOR
1.
Replace wheel sensor.
2.
Erase self-diagnosis results for “ABS” with CONSULT-III.
3.
Start the engine and drive the vehicle at 30 km/h (19 MPH) or more for approximately 1 minute.
4.
Perform self-diagnosis for “ABS” with CONSULT-III.
Is DTC “C1101”, “C1102”, “C1103” or “C1104” detected?
YES
>> Replace ABS actuator and electric unit (control unit). Refer to
.
NO
>> INSPECTION END
Component Inspection
INFOID:0000000005517274
1.
CHECK DATA MONITOR
Select “ABS”, “DATA MONITOR” in order with CONSULT-III, select “FR LH SENSOR”, “FR RH SENSOR”,
“RR LH SENSOR”, and “RR RH SENSOR”, and check the vehicle speed.
ABS actuator and electric unit (control unit)
Wheel sensor
Continuity
Connector
Terminal
Connector
Terminal
E36
6
E39 (Front RH)
4
Existed
8
E22 (Front LH)
2
12
C4 (2WD models)
C6 (AWD models)
(Rear RH)
8
2
C3 (2WD models)
C5 (AWD models)
(Rear LH)
6
ABS actuator and electric unit (control unit)
Wheel sensor
Continuity
Connector
Terminal
Connector
Terminal
E36
5
E39 (Front RH)
3
Existed
9
E22 (Front LH)
1
11
C4 (2WD models)
C6 (AWD models)
(Rear RH)
7
3
C3 (2WD models)
C5 (AWD models)
(Rear LH)
5
ABS actuator and electric unit (control unit)
Continuity
Connector
Terminal
Connector
Terminal
E36
6, 5
E36
13, 26
Not existed
8, 9
12, 11
2, 3
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