Nissan Murano Z50 (2005 year). Manual — part 53
TROUBLE DIAGNOSIS
BRC-67
[VDC/TCS/ABS]
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Revision: 2005 August
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Control Unit Input/Output Signal Standard
AFS00200
REFERENCE VALUE FROM CONSULT-II
CAUTION:
The display shows the control unit calculation data, so a normal value might be displayed even in the
event the output circuit (harness) is open or short - circuited.
Monitor item
Display content
Data monitor
Check item
Condition
Reference value in
normal operation
SLCT LVR POSI
Select shift position
CVT shift position = P, R, D, L,
N position
Display selected
shift position one
of P, R, D, L, and
N.
–
S position
##
FR RH SENSOR
FR LH SENSOR
RR RH SENSOR
RR LH SENSOR
Wheel speed
Vehicle stopped
0 [km/h]
BRC-84, "Inspection 1
Wheel Sensor Circuit"
Vehicle running (Note 1)
Almost in accor-
dance with speed-
ometer display
(within
±
10%)
ACCEL POS SIG
Open/close condition
of throttle valve (linked
with accelerator pedal).
Accelerator pedal not
depressed (ignition switch is
ON)
0%
Communication circuit
between ABS actuator
and electric unit (control
unit) and ECM
Depress accelerator pedal
(ignition switch is ON)
0 - 100%
ENGINE SPEED
With engine running
With engine stopped
0 rpm
BRC-86, "Inspection 2
Engine System"
Engine running
Almost in accor-
dance with
tachometer display
STR ANGLE SIG
Steering angle
detected by steering
angle sensor
Straight-ahead
Approx. 0
°
BRC-90, "Inspection 5
Steering Angle Sensor
Circuit"
Steering wheel turned
–756 - 756
°
YAW RATE SEN
Yaw rate detected by
yaw rate/side G sensor
Vehicle stopped
Approx. 0 d/s
BRC-91, "Inspection 6
Yaw Rate/Side/Decel G
sensor Circuit"
Vehicle running
–100 - 100 d/s
SIDE G SENSOR
Transverse G detected
by yaw rate/side G
sensor
Vehicle stopped
Approx. 0 m/s
2
BRC-91, "Inspection 6
Yaw Rate/Side/Decel G
sensor Circuit"
Vehicle running
–16.7 - 16.7 m/s
2
PRESS SENSOR
Brake fluid pressure
detected by pressure
sensor
With ignition switch turned ON
and brake pedal released
Approx. 0 bar
BRC-88, "Inspection 4
Pressure Sensor Circuit"
With ignition switch turned ON
and brake pedal depressed
–0 - 170 bar
BATTERY VOLT
Battery voltage sup-
plied to ABS actuator
and electric unit (con-
trol unit)
Ignition switch ON
10 - 16 V
STOP LAMP SW
Brake pedal operation
Brake pedal depressed
ON
BRC-96, "Inspection 10
Stop Lamp Switch Cir-
cuit"
Brake pedal not depressed
OFF
OFF SW
VDC OFF switch
ON/OFF status
VDC OFF switch ON
(When VDC OFF indicator
lamp is ON)
ON
VDC OFF switch OFF
(When VDC OFF indicator
lamp is OFF)
OFF
BRC-68
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2005 August
2005 Murano
ABS WARN LAMP
ABS warning lamp ON
condition (Note 2)
ABS warning lamp ON
ON
ABS warning lamp OFF
OFF
MOTOR RELAY
Operation status of
motor and motor relay
Ignition switch ON or engine
running (ABS not operated)
OFF
BRC-94, "Inspection 8
Actuator Motor, Motor
Relay, and Circuit"
Ignition switch ON or engine
running (ABS operated)
ON
ACTUATOR RLY
Actuator relay opera-
tion status
Vehicle stopped (Ignition
switch ON)
OFF
BRC-94, "Inspection 8
Actuator Motor, Motor
Relay, and Circuit"
Vehicle stopped (Engine run-
ning)
ON
OFF LAMP
VDC OFF indicator
lamp status (Note 3)
When VDC OFF indicator
lamp is ON
ON
BRC-99, "Inspection 16
VDC OFF Indicator Lamp
Does Not Illuminate"
When VDC OFF indicator
lamp is OFF
OFF
SLIP LAMP
SLIP indicator lamp
status (Note 4)
When SLIP indicator lamp is
ON
ON
When SLIP indicator lamp is
blinking
When SLIP indicator lamp is
OFF
OFF
FR LH IN SOL
FR LH OUT SOL
FR RH IN SOL
FR RH OUT SOL
RR RH IN SOL
RR RH OUT SOL
RR LH IN SOL
RR LH OUT SOL
Solenoid valve opera-
tion
Actuator (solenoid) is active
(“ACTIVE TEST” with CON-
SULT-II) or actuator relay is
inactive (in fail-safe mode).
ON
BRC-93, "Inspection 7
Solenoid and VDC
Change-Over Valve Cir-
cuit"
When actuator (solenoid) is
not active and actuator relay is
active (ignition switch ON).
OFF
CV1
CV2
SV1
SV2
VDC/TCS switch-over
valve status
When actuator (switch-over
valve) is active (“ACTIVE
TEST” with CONSULT-II) or
actuator relay is inactive (when
in fail-safe mode).
ON
When actuator (switch-over
valve) is not active and actua-
tor relay is active (ignition
switch ON).
OFF
DECEL G-SEN
Longitudinal accelera-
tion detected by Decel
G Sensor (Note5)
Vehicle stopped
Approx. 0G
BRC-91, "Inspection 6
Yaw Rate/Side/Decel G
sensor Circuit"
Vehicle running
-1.7 - +1.7G
FLUID LEV SW
ON/OFF status of
brake fluid level switch
When brake fluid level switch
ON
ON
BRC-97, "Inspection 11
Brake Fluid Level Sensor
Circuit"
When brake fluid level switch
OFF
OFF
Monitor item
Display content
Data monitor
Check item
Condition
Reference value in
normal operation
TROUBLE DIAGNOSIS
BRC-69
[VDC/TCS/ABS]
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Revision: 2005 August
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Note 1: Confirm tire pressure is normal.
Note 2: ON/OFF timing of ABS warning lamp
ON: After ignition switch is turned ON, or when a malfunction is detected.
OFF: After ignition switch is turned ON (when system is in normal operation) condition by VDC.
Note 3: ON/OFF timing of VDC OFF indicator lamp
ON: After ignition switch is turned ON, or when a malfunction is detected and VDC OFF switch is ON.
OFF: After ignition switch is turned ON (when system is in normal operation.) And when VDC OFF switch is OFF.
Note 4: SLIP indicator lamp ON/OFF timing
ON: After ignition switch is turned ON, or when a malfunction is detected.
OFF: After ignition switch is turned ON (when system is in normal operation) and VDC/TCS function is not activated.
Blinking: VDC/TCS function is active during driving
Note 5: Only AWD model.
Note 6: Serves as EBD warning lamp.
VDC FAIL SIG
TCS FAIL SIG
ABS FAIL SIG
EBD FAIL SIG
Fail signal status
VDC fail
TCS fail
ABS fail
EBD fail
ON
VDC system
TCS system
ABS system
EBD system
VDC normal
TCS normal
ABS normal
EBD normal
OFF
EBD WARN LAMP
Brake warning lamp on
condition (Note 6)
Brake warning lamp ON
ON
Brake warning lamp OFF
OFF
EBD SIGNAL
EBD operation
EBD active
ON
–
EBD not active
OFF
ABS SIGNAL
ABS operation
ABS active
ON
ABS not active
OFF
TCS SIGNAL
TCS operation
TCS active
ON
TCS not active
OFF
VDC SIGNAL
VDC operation
VDC active
ON
VDC not active
OFF
CRANKING SIG
CRANKING status
Cranking
ON
Not cranking
OFF
4WD FAIL REQ
ETS fail status (Note 5)
ETS fail
ON
–
ETS normal
OFF
2WD/4WD
Drive axle
2WD model
2WD
AWD model
4WD
Monitor item
Display content
Data monitor
Check item
Condition
Reference value in
normal operation
BRC-70
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2005 August
2005 Murano
CONSULT-II Functions
AFS00201
CONSULT-II MAIN FUNCTION
In a diagnosis function (main function), there are “WORK SUPPORT”, “SELF-DIAGNOSTIC RESULTS”,
“DATA MONITOR”, “CAN DIAG SUPPORT MNTR”, “ACTIVE TEST”, “FUNCTION TEST”, “ECU PART NUM-
BER”.
CONSULT-II BASIC OPERATION PROCEDURE
1.
Turn ignition switch OFF.
2.
Connect CONSULT-II and CONSULT-II CONVERTER to the
data link connector.
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II
CONVERTER, malfunctions might be detected in self-diag-
nosis depending on control unit which performs CAN com-
munication.
3.
Turn ignition switch ON.
4.
Touch “START (NISSAN BASED VHCL)”.
Diagnostic
test mode
Function
Reference
WORK SUP-
PORT
This mode enables a technician to adjust some devices faster and more accurately
by following the indications on CONSULT-II.
BRC-49, "ON-VEHICLE SER-
VICE"
SELF-DIAG-
NOSTIC
RESULTS
Self-diagnostic results can be read and erased quickly.
DATA MONI-
TOR
Input/Output data in the ABS actuator and electric unit (control unit) can be read.
CAN DIAG
SUPPORT
MNTR
The results of transmit/receive diagnosis of communication can be read.
—
ACTIVE TEST
Diagnostic Test Mode in which CONSULT-II drives some actuators apart from the
ABS actuator and electric unit (control unit) and also shifts some parameters in a
specified range.
FUNCTION
TEST
Performed by CONSULT-II instead of a technician to determine whether each sys-
tem is “OK” or “NG”.
—
ECU PART
NUMBER
ABS actuator and electric unit (control unit) part number can be read.
—
PBIB1300E
SKIA3098E
TROUBLE DIAGNOSIS
BRC-71
[VDC/TCS/ABS]
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Revision: 2005 August
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5.
Touch “ABS” in the “SELECT SYSTEM” screen.
If “ABS” is not indicated, go to
.
6.
Select the required diagnostic location from the “SELECT DIAG
MODE” screen.
For further information, see the CONSULT-II Operation Manual.
SFIA2160E
SFIA2436E
BRC-72
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2005 August
2005 Murano
SELF-DIAGNOSIS
Description
If an error is detected in the system, ABS warning lamp, VDC OFF indicator lamp, SLIP indicator lamp on the
combination meter turn on. In this case, perform self-diagnosis as follows.
Operation Procedure
1.
Turn ignition switch OFF.
2.
Connect CONSULT-II and CONSULT-II CONVERTER to the data link connector.
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which performs CAN communication.
3.
Turn ignition switch ON.
4.
Start engine and drive at approximately 30 km/h (19 MPH) or more for approximately 1 minute.
5.
After stopping the vehicle, with engine running at idle speed, touch “START (NISSAN BASED VHCL)”,
“ABS”, “SELF-DIAG RESULTS” in order on the CONSULT-II screen.
If “ABS” is not indicated, go to
GI-39, "CONSULT-II Data Link Connector (DLC) Circuit"
CAUTION:
●
If there is no error during CONSULT-II use, ABS warning lamp, VDC OFF indicator lamp, SLIP
indicator lamp may be turned ON/OFF.
●
If “START (NISSAN BASED VHCL)” is touched immediately after starting engine or turning on
ignition switch, “ABS” might not be displayed in the System Selection screen. In this case,
repeat the operation from step 1. If it connect be shown after several attempts, ABS actuator
and electric unit (control unit) may have malfunction. Repair or replace control unit.
6.
The self-diagnostic results are displayed. (If necessary, the self-diagnostic results can be printed out by
touching “PRINT”.)
●
When “NO FAILURE” is displayed, check ABS warning lamp, VDC OFF indicator lamp, and SLIP indi-
cator lamp.
7.
Conduct the appropriate inspection from the display item list, and repair or replace the malfunctioning
component.
8.
Start engine and drive at approximately 30 km/h (19 MPH) or more for approximately 1 minute.
CAUTION:
●
When a wheel sensor “short-circuit” is detected, if the vehicle is not driven at 30 km/h (19 MPH)
for at least 1 minute, ABS warning lamp will not turn off even if everything is normal.
●
Check again to make sure that there is no malfunction on other parts.
9.
Turn ignition switch OFF to prepare for erasing the memory.
10. Start engine and touch “START (NISSAN BASED VHCL)”, “ABS”, “SELF-DIAG RESULTS”, “ERASE
MEMORY” in order on the CONSULT-II screen to erase the error memory.
CAUTION:
If the error memory is not erased, re-conduct the operation from step 5.
11. For final inspection, drive at approximately 30 km/h (19 MPH) or more for approximately 1 minute and
confirm that ABS warning lamp, VDC OFF indicator lamp, and SLIP indicator lamp are OFF.
CAUTION:
VDC “OFF” switch should not stay in the “ON” position.
TROUBLE DIAGNOSIS
BRC-73
[VDC/TCS/ABS]
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Revision: 2005 August
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Display Item List
Self-diagnostic item
Malfunction detecting condition
Check item
FR LH SENSOR- 1
[C1104]
Circuit of front LH wheel sensor is open or sensor power voltage
is unusual.
BRC-84, "Inspection 1
Wheel Sensor Circuit"
(Note 1)
RR RH SENSOR- 1
[C1101
Circuit of rear RH wheel sensor is open or sensor power voltage
is unusual.
FR RH SENSOR- 1
[C1103]
Circuit of front RH wheel sensor is open or sensor power voltage
is unusual.
RR LH SENSOR- 1
[C1102]
Circuit of rear LH wheel sensor is open or sensor power voltage
is unusual.
FR LH SENSOR- 2
[C1108]
ABS actuator and electric unit (control unit) can not identify sen-
sor pulses, because of large gap between wheel sensor and sen-
sor rotor.
RR RH SENSOR- 2
[C1105]
ABS actuator and electric unit (control unit) can not identify sen-
sor pulses, because of large gap between wheel sensor and sen-
sor rotor.
FR RH SENSOR- 2
[C1107]
ABS actuator and electric unit (control unit) can not identify sen-
sor pulses, because of large gap between wheel sensor and sen-
sor rotor.
RR LH SENSOR- 2
[C1106]
ABS actuator and electric unit (control unit) can not identify sen-
sor pulses, because of large gap between wheel sensor and sen-
sor rotor.
STOP LAMP SW
[C1116]
Stop lamp switch circuit is open or shorted.
BRC-96, "Inspection 10
Stop Lamp Switch Cir-
cuit"
PRESS SEN CIRCUIT
[C1142]
Pressure sensor signal line is open or shorted, sensor power
voltage is unusual, or pressure sensor is malfunctioning.
BRC-88, "Inspection 4
Pressure Sensor Circuit"
ST ANGLE SEN CIRCUIT
[C1143]
Neutral position of steering angle sensor is dislocated, or steer-
ing angle sensor is malfunctioning.
BRC-98, "Inspection 12
When “ST ANG SEN
SIGNAL” Appears on
Self-Diagnosis Results
Display"
YAW RATE SENSOR
[C1145]
Yaw rate/side G sensor has generated an error, or yaw rate/side
G sensor signal line is open or shorted.
BRC-74
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2005 August
2005 Murano
FR LH IN ABS SOL
[C1120]
Circuit of front LH IN ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.
BRC-93, "Inspection 7
Solenoid and VDC
Change-Over Valve Cir-
cuit"
FR LH OUT ABS SOL
[C1121]
Circuit of front LH OUT ABS solenoid is open or shorted, or con-
trol line is open or shorted to power supply or ground.
RR RH IN ABS SOL
[C1126]
Circuit of rear RH IN ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.
RR RH OUT ABS SOL
[C1127]
Circuit of rear RH OUT ABS solenoid is open or shorted, or con-
trol line is open or shorted to power supply or ground.
FR RH IN ABS SOL
[C1122]
Circuit of front RH IN ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.
FR RH OUT ABS SOL
[C1123]
Circuit of front RH OUT ABS solenoid is open or shorted, or con-
trol line is open or shorted to power supply or ground.
RR LH IN ABS SOL
[C1124]
Circuit of rear LH IN ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.
RR LH OUT ABS SOL
[C1125]
Circuit of rear LH OUT ABS solenoid is open or shorted, or con-
trol line is open or shorted to power supply or ground.
CV1
[C1164]
Front side VDC switch-over solenoid valve (cut valve 1) is open
or shorted, or control line is open or shorted to power supply or
ground.
CV2
[C1165
Rear side VDC switch-over solenoid valve (cut valve 2) is open
or shorted, or control line is open or shorted to power supply or
ground.
SV1
[C1166]
Front side VDC switch-over solenoid valve (suction valve 1) is
open or shorted, or control line is open or shorted to power sup-
ply or ground.
SV2
[C1167]
Rear side VDC switch-over solenoid valve (suction valve 2) is
open or shorted, or control line is open or shorted to power sup-
ply or ground.
PUMP MOTOR (Note 3)
[C1111]
During actuator motor operation with ON, when actuator motor
turns OFF or when control line for actuator motor relay is open.
BRC-94, "Inspection 8
Actuator Motor, Motor
Relay, and Circuit"
During actuator motor operation with OFF, when actuator motor
turns ON or when control line for relay is shorted to ground.
ABS SENSOR
[MALFUNCTION SIGNAL]
[C1115]
Wheel sensor input is malfunction.
BRC-84, "Inspection 1
Wheel Sensor Circuit"
(Note 1)
BATTERY VOLTAGE
[MALFUNCTION]
[C1109]
ABS actuator and electric unit (control unit) power voltage is too
low.
ST ANGLE SEN SIGNAL
[C1144]
Neutral position correction of steering angle sensor is not fin-
ished.
BRC-98, "Inspection 12
When “ST ANG SEN
SIGNAL” Appears on
Self-Diagnosis Results
Display"
ST ANG SEN COM CIR
[C1156]
CAN communication line or steering angle sensor has generated
an error.
SIDE G-SEN CIRCUIT
[C1146]
Yaw rate/side G sensor is malfunctioning, or signal line of yaw
rate/side G sensor is open or shorted.
BRC-91, "Inspection 6
Yaw Rate/Side/Decel G
sensor Circuit"
CONTROLLER FAILURE
[C1110]
Internal malfunction of ABS actuator and electric unit (control
unit)
BRC-87, "Inspection 3
VDC/TCS/ABS Control
Unit Circuit"
Self-diagnostic item
Malfunction detecting condition
Check item
TROUBLE DIAGNOSIS
BRC-75
[VDC/TCS/ABS]
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Revision: 2005 August
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Note 1: After completing repairs of shorted sensor circuit, when ignition switch is turned ON, ABS warning lamp turns on. Make sure that
ABS warning lamp turns off while driving vehicle at approximately 30 km/h (19 MPH) or more for approximately 1 minute according to
self-diagnosis procedure. In addition, if wheel sensor 2 is displayed for wheels, check wheel sensor circuit and also check control unit
power voltage.
Note 2: If multiple malfunctions are detected including CAN communication line [U1000], perform diagnosis for CAN communication line
first.
CAN COMM CIRCUIT
[U1000]
●
CAN communication line is open or shorted.
●
ABS actuator and electric unit (control unit) internal malfunc-
tion
●
Battery voltage for EMC is suddenly interrupted for approxi-
mately 0.5 seconds or more.
BRC-98, "Inspection 13
CAN Communication
Circuit"
(Note 2)
BR FLUID LEVEL LOW
[C1155]
Brake fluid level drops or circuit between ABS actuator and elec-
tric unit (control unit) and brake fluid level switch is open or
shorted.
BRC-97, "Inspection 11
Brake Fluid Level Sensor
Circuit"
VARIANT CODING
[C1170]
V coding is not functioning.
ABS actuator and elec-
tric unit (control unit) and
circuit
G - SENSOR
[C1113]
Decel G sensor is malfunctioning, or signal line of Decel G sen-
sor is open or shorted.
BRC-91, "Inspection 6
Yaw Rate/Side/Decel G
sensor Circuit"
ENGINE SIGNAL 1
[C1130]
Based on the signal from ECM, ABS actuator and electric unit
(control unit) judges that engine fuel cut system is malfunction-
ing.
–
ENGINE SIGNAL 2
[C1131]
Based on the signal from ECM, ABS actuator and electric unit
(control unit) judges that engine ETC system is malfunctioning.
–
ENGINE SIGNAL 3
[C1132]
Based on the signal from ECM, ABS actuator and electric unit
(control unit) judges that engine CAN system is malfunctioning.
–
ENGINE SIGNAL 4
[C1133]
Based on the signal from ECM, ABS actuator and electric unit
(control unit) judges that engine torque down system is malfunc-
tioning.
–
ENGINE SIGNAL 6
[C1136]
Based on the signal from ECM, ABS actuator and electric unit
(control unit) judges that engine control system is malfunctioning.
–
ACTUATOR RLY
[C1140]
●
Actuator solenoid valve relay is ON, even if control unit sends
off signal.
●
Actuator solenoid valve relay is OFF, even if control unit sends
on signal.
BRC-94, "Inspection 8
Actuator Motor, Motor
Relay, and Circuit"
DECEL G SEN SET
[C1160]
Neutral position correction of Decel G -sensor is not finished.
BRC-99, "Inspection 14
When “DECEL G SEN
SET” Appears on Self-
Diagnosis Results Dis-
play"
Self-diagnostic item
Malfunction detecting condition
Check item
BRC-76
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2005 August
2005 Murano
DATA MONITOR
Operation Procedure
1.
Touch “ABS”, “DATA MONITOR” in order on CONSULT-II screen.
If “ABS” is not indicated, go to
GI-39, "CONSULT-II Data Link Connector (DLC) Circuit"
CAUTION:
When “START (NISSAN BASED VHCL)” is touched immediately after starting engine or turning on
ignition switch, “ABS” might not be displayed in system selection screen. In this case, repeat the
operation from step 2.
2.
Return to “SELECT MONITOR ITEM” screen, and touch “ECU INPUT SIGNALS”, “MAIN SIGNALS” or
“SELECTION FROM MENU”. Refer to following information.
3.
When “START” is touched, data monitor screen is displayed.
Display Item List
Monitor item
Monitor item selection
Remarks
ECU INPUT
SIGNALS
MAIN
SIGNALS
SELECTION
FROM MENU
FR RH SENSOR
(km/h)
×
×
×
Wheel speed calculated by front
RH wheel sensor signal is dis-
played.
FR LH SENSOR
(km/h)
×
×
×
Wheel speed calculated by front
LH wheel sensor signal is dis-
played.
RR RH SENSOR
(km/h)
×
×
×
Wheel speed calculated by rear
RH wheel sensor signal is dis-
played.
RR LH SENSOR
(km/h)
×
×
×
Wheel speed calculated by rear
LH wheel sensor signal is dis-
played.
BATTERY VOLT
(V)
×
×
×
Voltage supplied to ABS actuator
and electric unit (control unit).
SLCT LVR POSI
×
×
×
Shift position judged by CVT PNP
switch signal.
ACCEL POS SIG
(%)
×
–
–
Throttle valve open/close status
judged by CAN communication
signal is displayed.
ENGINE SPEED
(rpm)
×
×
×
Engine speed judged by CAN
communication signal is displayed.
STR ANGLE SIG
(
°
)
×
–
–
Steering angle detected by steer-
ing angle sensor is displayed.
YAW RATE SEN
(d/s)
×
×
–
Yaw rate detected by yaw rate side
G sensor is displayed.
DECEL G SEN
(G) (Only AWD model)
×
×
×
Decel acceleration detected by
Decel G sensor is displayed.
SIDE G-SENSOR
(m/s
2
)
×
–
–
Lateral acceleration detected by
yaw rate/side G sensor is dis-
played.
PRESS SENSOR
(bar)
×
–
–
Brake fluid pressure detected by
pressure sensor is displayed.
STOP LAMP SW
(ON/OFF)
×
×
×
Stop lamp switch (ON/OFF) status
is displayed.
OFF SW
(ON/OFF)
×
×
×
VDC OFF switch (ON/OFF) sta-
tus is displayed.
ABS WARN LAMP
(ON/OFF)
–
×
×
ABS warning lamp (ON/OFF) sta-
tus is displayed.
SLIP LAMP
(ON/OFF)
–
×
×
SLIP indicator lamp (ON/OFF) sta-
tus is displayed.
TROUBLE DIAGNOSIS
BRC-77
[VDC/TCS/ABS]
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Revision: 2005 August
2005 Murano
FR LH IN SOL
(ON/OFF)
–
×
×
Front LH IN ABS solenoid (ON/
OFF) status is displayed.
FR LH OUT SOL
(ON/OFF)
–
×
×
Front LH OUT ABS solenoid (ON/
OFF) status is displayed.
RR RH IN SOL
(ON/OFF)
–
×
×
Rear RH IN ABS solenoid (ON/
OFF) status is displayed.
RR RH OUT SOL
(ON/OFF)
–
×
×
Rear RH OUT ABS solenoid (ON/
OFF) status is displayed.
FR RH IN SOL
(ON/OFF)
–
×
×
Front RH IN ABS solenoid (ON/
OFF) status is displayed.
FR RH OUT SOL
(ON/OFF)
–
×
×
Front RH OUT ABS solenoid (ON/
OFF) status is displayed.
RR LH IN SOL
(ON/OFF)
–
×
×
Rear LH IN ABS solenoid (ON/
OFF) status is displayed.
RR LH OUT SOL
(ON/OFF)
–
×
×
Rear LH OUT ABS solenoid (ON/
OFF) status is displayed.
OFF LAMP
(ON/OFF)
–
×
×
OFF Lamp (ON/OFF) status is dis-
played.
MOTOR RELAY
(ON/OFF)
–
×
×
ABS motor relay signal (ON/OFF)
status is displayed.
ACTUATOR RLY
(ON/OFF)
–
×
×
ABS actuator relay signal (ON/
OFF) status is displayed.
CV1
(ON/OFF)
–
–
×
Front side switch-over solenoid
valve (cut valve 1) (ON/OFF) sta-
tus is displayed.
CV2
(ON/OFF)
–
–
×
Rear side switch-over solenoid
valve (cut-valve 2) (ON/OFF) sta-
tus is displayed.
SV1
(ON/OFF)
–
–
×
Front side switch-over solenoid
valve (suction valve 1) (ON/OFF)
status is displayed.
SV2
(ON/OFF)
–
–
×
Rear side switch-over solenoid
valve (suction valve 2) (ON/OFF)
status is displayed.
VDC FAIL SIG
(ON/OFF)
–
–
×
VDC fail signal (ON/OFF) status is
displayed.
TCS FAIL SIG
(ON/OFF)
–
–
×
TCS fail signal (ON/OFF) status is
displayed.
ABS FAIL SIG
(ON/OFF)
–
–
×
ABS fail signal (ON/OFF) status is
displayed.
EBD FAIL SIG
(ON/OFF)
–
–
×
EBD fail signal (ON/OFF) status is
displayed.
FLUID LEV SW
(ON/OFF)
×
–
–
Brake fluid level switch (ON/OFF)
status is displayed.
EBD SIGNAL
(ON/OFF)
–
–
×
EBD operation (ON/OFF) status is
displayed.
ABS SIGNAL
(ON/OFF)
–
–
×
ABS operation (ON/OFF) status is
displayed.
TCS SIGNAL
(ON/OFF)
–
–
×
TCS operation (ON/OFF) status is
displayed.
VDC SIGNAL
(ON/OFF)
–
–
×
VDC operation (ON/OFF) status is
displayed.
Monitor item
Monitor item selection
Remarks
ECU INPUT
SIGNALS
MAIN
SIGNALS
SELECTION
FROM MENU
BRC-78
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2005 August
2005 Murano
×
: Applicable
–: Not applicable
Note: Serves as EBD warning lamp.
EBD WARN LAMP
(ON/OFF)
–
–
×
Brake warning lamp (ON/OFF)
status is displayed. (Note)
CRANKING SIG
(ON/OFF)
–
–
×
Cranking condition (ON/OFF) sta-
tus is displayed.
4WD FAIL REQ
(ON/OFF)
–
–
×
AWD fail-safe signal (ON/OFF)
status is displayed.
2WD/4WD
(2WD/4WD)
–
–
×
Distinguish 2WD and AWD
Monitor item
Monitor item selection
Remarks
ECU INPUT
SIGNALS
MAIN
SIGNALS
SELECTION
FROM MENU
TROUBLE DIAGNOSIS
BRC-79
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
Revision: 2005 August
2005 Murano
ACTIVE TEST
CAUTION:
●
Do not perform active test while driving vehicle.
●
Make sure to completely bleed air from the brake system.
●
Active test can not be performed when ABS warning lamp is on.
●
ABS and brake warning lamps turn on during the active test.
Operation Procedure
1.
Touch “ABS”.
If “ABS” is not indicated, go to
GI-39, "CONSULT-II Data Link Connector (DLC) Circuit"
2.
Touch “ACTIVE TEST”.
3.
Test item selection screen is displayed.
4.
Touch necessary test item.
5.
With “SELECT TEST SIGNALS” display shown in reverse, touch “START”.
6.
“ACTIVE TEST” screen will be displayed, so conduct following test.
Test Item
Solenoid valve
CAUTION:
The example shown is for front right wheel. The procedure for the other wheels is the same as given
below.
1.
For ABS solenoid valve, touch “UP”, “KEEP”, and “DOWN”.
Then use screen monitor to check that solenoid valve operates
as shown in Solenoid Valve Operation Chart. Refer to “Solenoid
Valve Operation Chart”.
SFIA2162E
SFIA0678E
BRC-80
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2005 August
2005 Murano
Solenoid Valve Operation Chart
*: ON for 1 to 2 seconds after the touch, and then OFF
NOTE:
●
When active test is performed while depressing pedal, pedal depression amount will change, but this is
normal.
●
Approximately 10 seconds after operation is begun, “TEST STOP” will be displayed.
●
To perform retest after “TEST STOP” is displayed, touch “BACK” and conduct the test from the Step 6.
ABS Motor
Touch “ON” and “OFF” on the screen. Make suer ABS motor relay
operates as shown in table below.
NOTE:
●
When active test is performed while depressing pedal, pedal
depression amount will change, but this is normal.
●
Approximately 10 seconds after operation is begun, “TEST
STOP” will be displayed.
●
To perform retest after “TEST STOP” is displayed, touch “BACK” and conduct the test from the Step 6.
Operation
ABS solenoid valve
ABS solenoid valve (ACT)
UP
KEEP
DOWN
UP
ACTUATOR
UP
ACTUATOR
KEEP
FR RH IN SOL
OFF
ON
ON
OFF
OFF
OFF
FR RH OUT SOL
OFF
OFF
ON*
OFF
OFF
OFF
FR LH IN SOL
OFF
ON
ON
OFF
OFF
OFF
FR LH OUT SOL
OFF
OFF
ON*
OFF
OFF
OFF
RR RH IN SOL
OFF
ON
ON
OFF
OFF
OFF
RR RH OUT SOL
OFF
OFF
ON*
OFF
OFF
OFF
RR LH IN SOL
OFF
ON
ON
OFF
OFF
OFF
RR LH OUT SOL
OFF
OFF
ON*
OFF
OFF
OFF
Primary side VDC switch over
valve 1 (SV 1)
OFF
OFF
OFF
OFF
ON*
OFF
Primary side VDC switch over
valve 1 (CV 1)
OFF
OFF
OFF
OFF
ON
ON
Secondary side VDC switch
over valve 2 (SV 2)
OFF
OFF
OFF
OFF
ON*
OFF
Secondary side VDC switch
over valve 2 (CV 2)
OFF
OFF
OFF
OFF
ON
ON
Operation
ON
OFF
ABS actuator relay
ON
ON
ABS motor relay
ON
OFF
SFIA0593E
TROUBLE DIAGNOSIS
BRC-81
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
Revision: 2005 August
2005 Murano
For Fast and Accurate Diagnosis
AFS00202
PRECAUTIONS FOR DIAGNOSIS
●
Before performing diagnosis, always read precautions. Refer to
.
●
If ABS actuator and electric unit (control unit), steering angle sensor, steering system parts, suspension
system parts, or tires have been replaced, or if alignment has been adjusted, be sure to adjust neutral
position of steering angle sensor before driving. Refer to
BRC-49, "Adjustment of Steering Angle Sensor
.
●
After diagnosis is finished, be sure to erase memory. Refer to
.
●
When checking continuity and voltage between units, be sure to check for disconnection, looseness,
bend, or collapse of connector terminals. If any malfunction is found, repair or replace connector termi-
nals.
●
For intermittent symptoms, possible cause is malfunction in harness, harness connector, or terminals.
Move harness, harness connector, and terminals to check for poor connections.
●
If a circuit tester is used for the check, be careful not to forcibly extend any connector terminal.
●
To use CONSULT-II to perform self-diagnosis of ABS actuator and electric unit (control unit), active tests,
or work support, first stop work, then connect CONSULT-II and select “ABS”.
●
While self-diagnosis results of CONSULT-II shows malfunction, if CONSULT-II active test is performed, an
engine system error may be indicated. In this case, start engine to resume the normal screen.
●
VDC/TCS/ABS system electronically controls brake operation and engine output. The following symptoms
may be caused by normal operations:
●
When CONSULT-II is used, ABS warning lamp, VDC OFF indicator lamp, SLIP indicator lamp may be
ON/OFF.
Symptom
Symptom description
Result
Motor operation noise
This is noise of motor inside ABS actuator and electric unit (control unit).
Slight noise may occur during VDC, TCS, and ABS operation.
Normal
When the vehicle speed goes over 20 km/h (12.5MPH), the motor and
valves operating noise may be heard. It happens only once after IGN
(ignition) is ON. This is a normal status of the system operation check.
System operation check
noise
When engine starts, slight “click” noise may be heard from engine com-
partment. This is normal and is part of system operation check.
Normal
VDC/TCS operation
(SLIP lamp Blinking)
TCS may activate momentarily if wheel speed changes when driving
over location where friction coefficient varies, when downshifting, or
when fully depressing accelerator pedal.
Normal
Cancel the VDC/TCS
function for the
inspection on a chas-
sis dynamometer.
For inspection of speedometer or other instruments, press
VDC OFF SW to turn VDC/TCS function off.
When accelerator pedal is depressed on a chassis dynamometer (fixed
front-wheel type), vehicle speed will not increase. This is not normal. It is
result of TCS being activated by stationary front wheels. Warning lamp
may also illuminate to indicate “sensor system error”. This is also nor-
mal, and is the result of the stationary front wheels being detected. To be
certain, restart engine, and drive vehicle at 30 km/h (19 MPH) or above.
Make sure that warning lamp does not illuminate.
ABS operation (Longer stop-
ping distance)
On roads with low friction coefficients, such as snowy roads or gravel
roads, vehicles with ABS may require a longer stopping distance. There-
fore, when driving on such roads, avoid overconfidence and keep speed
sufficiently low.
Normal
Insufficient feeling of accel-
eration
Depending on road conditions, driver may feel that feeling of accelera-
tion is insufficient. This is because traction control, which controls
engine and brakes to achieve optimal traction, has the highest priority
(for safety). As a result, there may be times when acceleration is slightly
less than usual for the same accelerator pedal operation.
Normal
BRC-82
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2005 August
2005 Murano
ON and OFF Timing for ABS Warning Lamp, VDC OFF Indicator Lamp, SLIP Indicator Lamp,
Brake Warning Lamp
×
: ON
–: OFF
NOTE:
1.
Brake warning lamp will turn on in case of operating parking brake (switch turned on) or of actuating brake
fluid level switch (brake fluid is insufficient).
2.
After starting engine, turn OFF.
Basic Inspection
AFS00203
BASIC INSPECTION 1 BRAKE FLUID LEVEL, LEAKS, AND BRAKE PADS
1.
Check fluid level in the brake reservoir tank. If fluid level is low, refill the brake fluid.
2.
Check the brake piping and around the ABS actuator and electric unit (control unit) for leaks. If leakage or
seepage is found, check the following items.
●
If ABS actuator and electric unit (control unit) connection is loose, tighten the piping to the specified
torque and make sure there are no leaks.
●
If there is damage to the connection flare nut or ABS actuator and electric unit (control unit) screw,
replace the damaged part and re-conduct the leak inspection to make sure there are no leaks.
●
If there is leakage or seepage at any location other than ABS actuator and electric unit (control unit)
connection, wipe away leakage or seepage with clean cloth. Then inspect again and confirm the there
is on leakage.
●
If there is leakage from ABS actuator and electric unit (control unit), wipe away leakage or seepage with
clean cloth. Then inspect again. If there is leakage or seepage, replace ABS actuator and electric unit
(control unit).
CAUTION:
ABS actuator body can not be disassembled.
3.
Check brake disc and pads. Refer to
BR-28, "Removal and Installation of Brake Pad"
Brake” and
BR-34, "Removal and Installation of Brake Pad"
in “Rear Disc Brake”.
BASIC INSPECTION 2 POWER SYSTEM TERMINAL LOOSENESS AND BATTERY INSPECTION
Make sure the battery positive cable, negative cable and ground connection are not loose. If looseness is
detected, tighten the piping to the specified torquer. In addition, check the battery voltage to make sure it has
not dropped and the altimeter is normal.
BASIC INSPECTION 3 ABS WARNING LAMP, VDC OFF INDICATOR LAMP, SLIP INDICATOR
LAMP INSPECTION
1.
Make sure that ABS warning lamp, VDC OFF indicator lamp (when VDC OFF switch is OFF), and SLIP
indicator lamp turn ON when ignition switch is turned ON. If they do not, check the VDC OFF indicator
lamp and then VDC OFF switch. Refer to
. Check CAN communications.
Refer to
BRC-98, "Inspection 13 CAN Communication Circuit"
. If there are no errors with VDC OFF
Condition
ABS warning
lamp
VDC OFF indi-
cator lamp
SLIP indicator
lamp
Brake warning
lamp [Note 1]
Remarks
Ignition SW OFF.
–
–
–
—
—
Approx. 2 seconds after igni-
tion switch is turned ON.
×
×
×
×
[Note 2]
—
Approx. 2 seconds later after
ignition switch ON.
–
–
–
×
[Note 2]
Go out 2 seconds after
ignition switch is turned
ON.
VDC OFF SW is turned ON.
(VDC/TCS function is OFF.)
–
×
–
—
—
VDC/TCS/ABS error.
×
×
×
—
There is an ABS actua-
tor and electric unit
(control unit) error.
(Power, ground or sys-
tem malfunction)
When VDC/TCS is not func-
tioning normally.
–
×
×
—
—
EBD error.
×
×
×
×
—
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