Nissan Murano. Manual — part 218
BRC-28
< SYSTEM DESCRIPTION >
[VDC/TCS/ABS]
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
CONSULT Function
INFOID:0000000009718235
FUNCTION
CONSULT can display each diagnostic item using the diagnostic test modes as following.
WORK SUPPORT
SELF DIAGNOSTIC RESULT
Operation Procedure
Before performing the self-diagnosis for “ABS” with CONSULT, start the engine and drive the vehicle at 30 km/
h (19 MPH) or more for approximately 1 minute.
Display Item List
.
How to Erase Self-diagnosis Results
After erasing DTC memory for “ABS” with CONSULT, start the engine and drive the vehicle at 30 km/h (19
MPH) or more for approximately 1 minute as the final inspection, and make sure that the ABS warning lamp,
VDC warning lamp and brake warning lamp turn OFF.
CAUTION:
If memory cannot be erased, perform applicable diagnosis.
NOTE:
• When the wheel sensor malfunctions, after inspecting the wheel sensor system, the ABS warning lamp,
VDC warning lamp and brake warning lamp will not turn OFF even when the system is normal unless the
vehicle is driving at approximately 30 km/h (19 MPH) or more for approximately 1 minute.
• Brake warning lamp will turn ON in case of parking brake operation (when switch is ON) or of brake fluid
level switch operation (when brake fluid is insufficient).
• VDC OFF switch should not stay “ON” position.
DATA MONITOR
Display Item List
NOTE:
The following table includes information (items) inapplicable to this vehicle. For information (items) applicable
to this vehicle, refer to CONSULT display items.
Diagnostic test mode
Function
Work support
This mode enables a technician to adjust some devices faster and more accurately by following the indica-
tions on CONSULT.
Self diagnostic result
Self-diagnostic results can be read and erased quickly.
Data monitor
Input/Output data in the ABS actuator and electric unit (control unit) can be read.
Active test
CONSULT drives some actuators apart from the ABS actuator and electric unit (control unit) and also shifts
some parameters in a specified range.
ECU identification
ABS actuator and electric unit (control unit) part number can be read.
Item
Description
ST ANGLE SENSOR ADJUSTMENT
Adjusts the neutral position of the steering angle sensor.
DECEL G SEN CALIBRATION (only AWD models)
Calibrates decel G sensor.
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
BRC-29
< SYSTEM DESCRIPTION >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
×
: Applicable
: Optional item
Monitor item (Unit)
SELECT MONITOR ITEM
Remarks
ECU INPUT
SIGNALS
MAIN SIGNALS
FR LH SENSOR
[km/h (MPH)]
×
×
Wheel speed
FR RH SENSOR
[km/h (MPH)]
×
×
RR LH SENSOR
[km/h (MPH)]
×
×
RR RH SENSOR
[km/h (MPH)]
×
×
STOP LAMP SW
(On/Off)
×
×
Stop lamp switch signal status
BATTERY VOLT
(V)
×
×
Battery voltage supplied to the ABS actuator and electric unit (control
unit)
GEAR
×
×
Gear position determined by TCM
R POSI SIG
(On/Off)
Shift position judged by shift position (R) signal
N POSI SIG
(On/Off)
Shift position judged by shift position (N) signal
P POSI SIG
(On/Off)
Shift position judged by shift position (P) signal
SLCT LVR POSI
×
×
Shift position judged by shift position signal
OFF SW
(On/Off)
×
×
VDC OFF switch
YAW RATE SEN
(d/s)
×
×
Yaw rate detected by yaw rate/side/decel G sensor
DECEL G-SEN
(G)
×
×
Decel G detected by yaw rate/side/decel G sensor
ACCEL POS SIG
(%)
×
Throttle actuator opening/closing is displayed (Linked with accelera-
tor pedal)
SIDE G-SENSOR
(m/s
2
)
×
Transverse G detected by yaw rate/side/decel G sensor
STR ANGLE SIG
(
°
)
×
Steering angle detected by steering angle sensor
ENGINE RPM
[tr/min (rpm)]
×
Engine speed
FLUID LEV SW
(On/Off)
×
Brake fluid level switch
PRESS SENSOR
(bar)
×
Brake fluid pressure detected by pressure sensor
FR RH IN SOL
(On/Off)
×
Operation status of front RH ABS IN valve
FR RH OUT SOL
(On/Off)
×
Operation status of front RH ABS OUT valve
FR LH IN SOL
(On/Off)
×
Operation status of front LH ABS IN valve
FR LH OUT SOL
(On/Off)
×
Operation status of front LH ABS OUT valve
RR RH IN SOL
(On/Off)
×
Operation status of rear RH ABS IN valve
RR RH OUT SOL
(On/Off)
×
Operation status of rear RH ABS OUT valve
BRC-30
< SYSTEM DESCRIPTION >
[VDC/TCS/ABS]
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
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:
RR LH IN SOL
(On/Off)
×
Operation status of rear LH ABS IN valve
RR LH OUT SOL
(On/Off)
×
Operation status of rear LH ABS OUT valve
MOTOR RELAY
(On/Off)
×
Motor and motor relay operation
ACTUATOR RLY
(On/Off)
×
Actuator relay operation
ABS WARN LAMP
(On/Off)
×
ABS warning lamp
OFF LAMP
(On/Off)
×
VDC OFF indicator lamp
SLIP/VDC LAMP
(On/Off)
×
VDC warning lamp
CV1
(On/Off)
Cut valve 1 (CV1) monitor
CV2
(On/Off)
Cut valve 2 (CV2) monitor
SV1
(On/Off)
Suction valve 1 (SV1) monitor
SV2
(On/Off)
Suction valve 2 (SV2) monitor
EBD SIGNAL
(On/Off)
EBD operation
ABS SIGNAL
(On/Off)
ABS operation
TCS SIGNAL
(On/Off)
TCS operation
VDC SIGNAL
(On/Off)
VDC operation
EBD FAIL SIG
(On/Off)
EBD fail-safe status
ABS FAIL SIG
(On/Off)
ABS fail-safe status
TCS FAIL SIG
(On/Off)
TCS fail-safe status
VDC FAIL SIG
(On/Off)
VDC fail-safe status
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
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
• 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 warning lamp and brake warning
lamp is ON.
• ABS warning lamp, VDC warning 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.
• “TEST IS STOPPED” in “ABS” with CONSULT is displayed 10 seconds after operation start.
• After “TEST IS STOPPED” in “ABS” with CONSULT is displayed, to perform test again.
Test Item
ABS IN Valve and ABS OUT valve
• Select “Up”, “Keep” and “Down” of “ACTIVE TEST” in “ABS” with CONSULT. Then use screen monitor to
check that each 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 IN Valve (ACT) and ABS OUT valve (ACT)
• Select “Up”, “ACT UP” and “ACT KEEP” of “ACTIVE TEST” in “ABS” with CONSULT. Then use screen mon-
itor to check that each valve operates as shown in the table below.
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*
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
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