Nissan Murano Z50 (2004 year). Manual — part 41
TROUBLE DIAGNOSIS
BRC-17
[ABS]
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Revision: 2004 November
2004 Murano
TFWA0064E
BRC-18
[ABS]
TROUBLE DIAGNOSIS
Revision: 2004 November
2004 Murano
Control Unit Input/Output Signal Standard
AFS0018R
REFERENCE VALUE FROM CONSULT-II
CAUTION:
The display shows control unit calculation data, so a normal value might be displayed even in the
event the output circuit (harness) is open or short - circuited.
Note 1: Confirm tire pressure is normal.
Note 2: ON/OFF timing of ABS warning lamp
ON: For approximately 2 seconds after ignition switch is turned ON, or when a malfunction is detected.
OFF: Approximately 2 seconds after ignition switch is turned ON (when system is in normal operation).
Monitor item
Display content
Data monitor
Note: Error inspection
checklist
Condition
Reference value in
normal operation
FR RH SENSOR
FR LH SENSOR
RR RH SENSOR
RR LH SENSOR
Wheel speed
Vehicle stopped
0 [km/h]
BRC-29, "Inspection 1
Wheel Sensor System"
Vehicle running (Note 1)
Almost in accor-
dance with speed-
ometer display
(within
±
10 %)
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
–
Brake pedal not depressed
OFF
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-34, "Inspection 5
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-34, "Inspection 5
Actuator Motor, Motor
Relay, and Circuit"
Vehicle stopped (Engine run-
ning)
ON
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-33, "Inspection 3
Solenoid Valve System"
When actuator (solenoid) is
not active and actuator relay is
active (ignition switch ON).
OFF
ABS FAIL SIG
EBD FAIL SIG
Fail signal status
ABS fail
EBD fail
ON
ABS system
EBD system
EBD normal
ABS normal
OFF
DECEL G-SEN
Longitudinal accelera-
tion detected by Decel
G-Sensor
Vehicle stopped
Approx. 0G
BRC-37, "Inspection 7 G
Sensor System"
Vehicle running
-1.7 - +1.7G
EBD WARN LAMP
Brake warning lamp on
condition (Note 3)
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
TROUBLE DIAGNOSIS
BRC-19
[ABS]
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Revision: 2004 November
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Note3: Serves as EBD warning lamp.
CONSULT- II Functions
AFS0018S
CONSULT-II MAIN FUNCTION
In a diagnosis function (main function), there are “SELF-DIAGNOSTIC RESULTS”, “DATA MONITOR”, “CAN
DIAG SUPPORT MNTR”, “ACTIVE TEST”, “FUNCTION TEST”, “ECU PART NUMBER”.
CONSULT-II BASIC OPERATION PROCEDURE
1.
Turn ignition switch OFF.
2.
Connect CONSULT-II and CONSULT-II CONVERTER to 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 carry out CAN com-
munication.
3.
Turn ignition switch ON.
4.
Touch “START (NISSAN BASED VHCL)”.
5.
Touch “ABS” in “SELECT SYSTEM” screen.
Diagnostic
test mode
Function
Reference
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
Conducted 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
BRC-20
[ABS]
TROUBLE DIAGNOSIS
Revision: 2004 November
2004 Murano
If “ABS” is not indicated, go to
6.
Select required diagnostic location from “SELECT DIAG MODE”
screen.
PKIA2102E
SFIA2435E
TROUBLE DIAGNOSIS
BRC-21
[ABS]
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SELF-DIAGNOSIS
Description
If an error is detected in system, ABS warning lamp on 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 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)/h for approximately 1 minute.
5.
After stopping vehicle, with engine running at idle speed, touch “START (NISSAN BASED VHCL)”, “ABS”,
“SELF-DIAG RESULTS” in order on 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 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 System Selection screen. In this case, repeat
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, self-diagnostic results can be printed out by touch-
ing “PRINT”.)
●
When “NO FAILURE” is displayed, check ABS warning lamp.
7.
Conduct appropriate inspection from the display item list, and repair or replace malfunctioning component.
8.
Start engine and drive at approximately 30 km/h (19 MPH) for approximately 1 minute.
CAUTION:
●
When a wheel sensor “short-circuit” is detected, if vehicle is not driven at 30 km/h
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 CONSULT-II screen to erase the error memory.
CAUTION:
If the error memory is not erased, re-conduct the operation from step 5 again.
11. For final inspection, drive at approximately 30 km/h (19 MPH) for approximately 1 minute and confirm that
ABS warning lamp turn OFF.
BRC-22
[ABS]
TROUBLE DIAGNOSIS
Revision: 2004 November
2004 Murano
Display Item List
Self-diagnostic item
Malfunction detecting condition
Check system
FR LH SENSOR-1
[C1104]
Circuit of front LH wheel sensor is open, or shorted or sensor
power voltage is unusual.
BRC-29, "Inspection 1
Wheel Sensor System"
(Note 1)
RR RH SENSOR-1
[C1101]
Circuit of rear RH wheel sensor is open, or shorted or sensor
power voltage is unusual.
FR RH SENSOR-1
[C1103]
Circuit of front RH wheel sensor is open, or shorted or sensor
power voltage is unusual.
RR LH SENSOR-1
[C1102]
Circuit of rear LH wheel sensor is open, or shorted or sensor
power voltage is unusual.
FR LH SENSOR-2
[C1108]
ABS actuator and electric unit (control unit) cannot 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) cannot 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) cannot 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) cannot identify sen-
sor pulses, because of large gap between wheel sensor and sen-
sor rotor.
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-33, "Inspection 3
Solenoid Valve System"
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.
PUMP MOTOR (Note 2)
[C1111]
During actuator motor operation with ON, when actuator motor
turns OFF or when control line for actuator motor relay is open.
BRC-34, "Inspection 5
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-29, "Inspection 1
Wheel Sensor System"
(Note 1)
BATTERY VOLTAGE
[MALFUNCTION]
[C1109]
ABS actuator and electric unit (control unit) power voltage is too
low.
CONTROLLER FAILURE
[C1110]
Internal malfunction of ABS actuator and electric unit (control
unit)
BRC-32, "Inspection 2
ABS Actuator and Elec-
tric Unit (Control Unit)"
G - SENSOR
[C1113] (Only AWD model)
Decel G- sensor is malfunctioning, or signal line of Decel G- sen-
sor is open or shorted.
TROUBLE DIAGNOSIS
BRC-23
[ABS]
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Revision: 2004 November
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Note 1: After completing repairs of shorted sensor circuit, when ignition switch is turned ON, ABS warning
lamp turns on. Check that ABS warning lamp turns off while driving vehicle at approximately 30 km/h (19
MPH) for approximately 1 minute according to self-diagnosis procedure. In addition, if wheel sensor 2 is dis-
played for wheels, check wheel sensor circuit and also check control unit power voltage.
Note 2: When errors are detected in several systems, including CAN communication system [U1000], trouble-
shoot CAN communication system.
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 Monitor Item Selection 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
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-34, "Inspection 4
CAN Communication
Lines"
(Note 2)
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.
–
Self-diagnostic item
Malfunction detecting condition
Check system
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 real LH
sensor signal is displayed.
BATTERY VOLT
(V)
×
×
×
Voltage supplied to ABS actuator
and electric unit (control unit) is
displayed.
STOP LAMP SW
(ON/OFF)
×
×
×
Stop lamp switch (ON/OFF) status
is displayed.
ABS WARN LAMP
(ON/OFF)
–
×
×
ABS warning lamp (ON/OFF) sta-
tus is displayed.
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.
BRC-24
[ABS]
TROUBLE DIAGNOSIS
Revision: 2004 November
2004 Murano
×
: Applicable
–: Not applicable
NOTE:
Serves as EBD warning lamp.
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.
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.
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.
EBD SIGNAL
(ON/OFF)
–
–
×
EBD operation (ON/OFF) status is
displayed.
ABS SIGNAL
(ON/OFF)
–
–
×
ABS operation (ON/OFF) status is
displayed.
DECEL G SEN
(G) (Only AWD model)
×
×
×
Decel acceleration detected by
Decel G-sensor is displayed.
EBD WARN LAMP
(ON/OFF)
–
–
×
Brake warning lamp (ON/OFF)
status is displayed. (Note)
Monitor item
monitor item selection
Remarks
ECU INPUT
SIGNALS
MAIN
SIGNALS
SELECTION
FROM MENU
TROUBLE DIAGNOSIS
BRC-25
[ABS]
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Revision: 2004 November
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ACTIVE TEST
CAUTION:
●
Do not perform active test while driving vehicle.
●
Make sure to completely bleed air from brake system.
●
Active test cannot be performed when ABS warning lamp is on.
●
ABS and Brake Warming lamps turn on during 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 the 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”.
SFIA1802E
SFIA0678E
BRC-26
[ABS]
TROUBLE DIAGNOSIS
Revision: 2004 November
2004 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 Step 6.
ABS Motor
Touch “ON”, “OFF” on display screen and make sure ABS motor
relay is operating 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 has begun, “TEST
STOP” will be displayed.
●
To perform a retest after “TEST STOP” is displayed, touch “BACK” and perform test from step 6.
Operation
ABS solenoid valve
UP
KEEP
DOWN
FR RH IN SOL
OFF
ON
ON
FR RH OUT SOL
OFF
OFF
ON*
FR LH IN SOL
OFF
ON
ON
FR LH OUT SOL
OFF
OFF
ON*
RR RH IN SOL
OFF
ON
ON
RR RH OUT SOL
OFF
OFF
ON*
RR LH IN SOL
OFF
ON
ON
RR LH OUT SOL
OFF
OFF
ON*
Operation
ON
OFF
ABS motor relay
ON
OFF
ABS actuator relay
ON
ON
SFIA0593E
TROUBLE DIAGNOSIS
BRC-27
[ABS]
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Revision: 2004 November
2004 Murano
For Fast and Accurate Diagnosis
AFS0018T
PRECAUTIONS FOR DIAGNOSIS
●
Before performing trouble diagnosis, always read general information (GI) to confirm general precautions.
Refer to
●
After completing service, always erase self-diagnosis results. Refer to
BRC-19, "CONSULT- II Functions"
.
●
When inspection of continuity or voltage between units is performed, check connector terminals for dis-
connection, looseness, bends, or collapses. If any non-standard condition is detected, repair or replace
applicable part.
●
Intermittent errors may be caused by a poor connection in harness, connector, or terminal. Move har-
nesses, harness connectors, or terminals by hand to make sure all connections are solid and undamaged.
●
If a circuit tester is used for check, be careful not to forcibly extend any connector terminal.
●
ABS is a system that uses electronic control to perform brake control. Therefore, phenomena like those
shown in the following table may occur, but this is because system is working normally.
●
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”.
●
When CONSULT-II issued, ABS warning lamp may be ON/OFF.
ON and OFF Timing for ABS Warning Lamp
×
: ON
–: OFF
Symptom
Symptom description
Result
Motor operation noise
This is the noise of motor operating inside ABS actuator and electric unit
(control unit). Slight noise may occur during ABS operation.
Normal
Just after the engine starts, the motor operating noise may be heard.
This is a normal status of the system operation check.
System operation check
noise
When the engine is started, you may barely be able to hear a slight
thudding sound from the engine room, but this sound is made by the
system operation check and is normal.
Normal
ABS operation (longer stop-
ping distance)
Stopping distance may be longer for vehicles with ABS when the vehicle
drives on rough or snow-covered roads. Use lower speeds when driving
on these kinds of roads.
Normal
Condition
ABS warning lamp
Remarks
Ignition switch OFF
–
—
For approximately “2” second after ignition switch
is turned ON.
×
—
After approximately “2” second after ignition
switch ON. (When system is normal)
–
Turns OFF 2 second after ignition SW is turned
ON.
ABS error
×
When there is an ABS actuator and electric unit
(control unit) error (power or ground malfunction)
BRC-28
[ABS]
TROUBLE DIAGNOSIS
Revision: 2004 November
2004 Murano
Basic Inspection
AFS0018U
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 brake fluid.
2.
Check brake piping and around ABS actuator and electric unit (control unit) for leaks. If leakage or seep-
age is found, check the following items.
●
If ABS actuator and electric unit (control unit) connection is loose, tighten piping to the specified torque
and re-conduct the leak inspection to make sure there are no leakage.
●
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 leakage.
●
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 than 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 and electric unit (control unit) body cannot be disassembled.
3.
Check the brake disc rotor and pads. Refer to
BR-28, "Removal and Installation of Brake Pad"
in “Front
Disc 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 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 alternator is normal.
BASIC INSPECTION 3 ABS WARNING LAMP INSPECTION
1.
Check that ABS warning lamp turned on approximately 2 second when ignition switch is turned ON.
Check CAN communications. Refer to
BRC-34, "Inspection 4 CAN Communication Lines"
. If there are no
errors with CAN communication system, check ABS warning lamp and combination meter. Refer to
2.
Check that ABS warning lamp turned OFF approximately 2 second after ignition switch is turned on. If
ABS warning lamp does not turn OFF, perform self-diagnosis.
3.
Check that ABS warning lamp turns OFF 2 seconds after engine is started. If ABS warning lamp has not
turned OFF 10 seconds after engine has been started, perform self-diagnosis of ABS actuator and electric
unit (control unit).
4.
After performing self-diagnosis, be sure to erase the error memory. Refer to
TROUBLE DIAGNOSIS
BRC-29
[ABS]
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BRC
Revision: 2004 November
2004 Murano
Inspection 1 Wheel Sensor System
AFS001ZE
After using CONSULT-II SELF-DIAG RESULTS to determine position of malfunctioning wheel sensor, check
all areas to determine the component to be replaced.
CAUTION:
●
Do not measure resistance value and also voltage between sensor terminal with tester etc.,
because sensor is an active sensor.
●
Do not expand terminal of connector with a tester terminal stick, when it does inspection with
tester.
INSPECTION PROCEDURE
1.
CHECK SELF-DIAGNOSIS RESULT
Check self-diagnosis results.
Is above displayed in self-diagnosis display items?
YES
>> GO TO 2.
NO
>> Inspection END
2.
CHECK CONNECTOR
1.
Disconnect ABS actuator and electric unit (control unit) connector E24 and malfunctioning wheel sensor
connector E20 (FR - LH) or E27 (FR - RH) or B202 (RR - LH), B203 (RR - RH). Check terminal to see if it
is deformed, disconnected, loose, etc., and repair or replace it if any malfunction condition is found.
2.
Reconnect connectors and check that interference with other parts has not cut wheel sensor cables, drive
vehicle at a speed of 30 km/h (19 MPH) or above for at least 1minute, and perform self-diagnosis.
OK or NG
OK
>> Connector terminal contact is loose, damaged, open or shorted.
NG
>> GO TO 3.
Self-diagnosis results
FR RH SENSOR-1,-2
FR LH SENSOR- 1,-2
RR RH SENSOR-1,-2
RR LH SENSOR-1,- 2
ABS SENSOR
SFIA0625E
BRC-30
[ABS]
TROUBLE DIAGNOSIS
Revision: 2004 November
2004 Murano
3.
CHECK WHEEL SENSOR HARNESS
1.
Turn ignition switch OFF and disconnect wheel sensor connec-
tor E20 (FR - LH), E27 (FR - RH), B202 (RR - LH), B203 (RR -
RH) and ABS actuator and electric unit (control unit) connector
E24.
2.
Check continuity between terminals. (Also check continuity
when steering wheel is turned right and left and when sensor
harness inside wheel well is moved.)
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace harness and connector that have malfunction.
4.
CHECK TIRE
Check air pressure, wear, and size.
Are air pressure, wear, and size within the standard values?
YES
>> GO TO 5.
NO
>> Adjust air pressure, or replace tire.
5.
CHECK SENSOR AND SENSOR ROTOR
●
Check condition of sensor mount (for looseness, etc.).
●
Check surface of front sensor rotor rubber for damage.
●
Check rear sensor rotor for damage.
OK or NG
OK
>> GO TO 6.
NG
>> Repair or replace the malfunctioning component.
PFIA0426E
Power system
Signal system
Ground system
Wheel
ABS actuator
and electric unit
(control unit)
Wheel sensor
ABS actuator
and electric unit
(control unit)
Wheel sensor
ABS actuator
and electric unit
(control unit)
ABS actuator
and electric unit
(control unit)
(Ground)
Front RH
34 (B)
1 (B)
33 (W)
2 (W)
33 (W), 34 (B)
16 (B), 47 (B)
Front LH
45 (G)
1 (G)
46 (R)
2 (R)
45 (G), 46 (R)
Rear RH
43 (LG)
1 (LG)
42 (V)
2 (V)
43 (LG), 42 (V)
Rear LH
36 (L)
1 (L)
37 (P)
2 (P)
36 (L), 37 (P)
Power system
: Continuity should exist.
Signal system
: Continuity should exist.
Ground system
: Continuity should not exist.
TROUBLE DIAGNOSIS
BRC-31
[ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
Revision: 2004 November
2004 Murano
6.
CHECK WHEEL SENSOR
1.
Replace wheel sensor that resulted in malfunction by self-diagnosis.
2.
Reconnect connectors, drive vehicle at 30 km/h (19 MPH) or more for approximately 1 minute, and then
perform self-diagnosis.
Is above displayed on self-diagnosis display?
OK
>> Wheel sensor has malfunction.
NG
>>
●
Replace ABS actuator and electric unit (control unit).
●
Perform to self-diagnosis again, and make sure that the result shows “NO DTC IS DETECTED.
FURTHER TESTING MAY BE REQUIRED”.
BRC-32
[ABS]
TROUBLE DIAGNOSIS
Revision: 2004 November
2004 Murano
Inspection 2 ABS Actuator and Electric Unit (Control Unit)
AFS0018X
INSPECTION PROCEDURE
1.
CHECK SELF-DIAGNOSIS RESULT
Check self-diagnosis results.
Is above displayed in self-diagnosis display items?
YES
>> Replace ABS actuator and electric unit (control unit). Re-conduct ABS actuator and electric unit
(control unit) self-diagnosis.
NO
>> Inspection END
Self-diagnosis results
CONTROLLER FAILURE
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