Nissan Pathfinder (2009 year). Manual — part 100
EBD
BRC-25
< FUNCTION DIAGNOSIS >
[TYPE 1]
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BRC
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EBD
System Diagram
INFOID:0000000003937727
System Description
INFOID:0000000003937728
• Electric Brake force Distribution is a following function. ABS actuator and electric unit (control unit) detects
subtle slippages between the front and rear wheels during braking. Then it electronically controls the rear
braking force (brake fluid pressure) to reduce rear wheel slippage. Accordingly, it improves vehicle stability.
• Electrical system diagnosis by CONSULT-III is available.
AWFIA0014GB
2009 Pathfinder
BRC-26
< FUNCTION DIAGNOSIS >
[TYPE 1]
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
CONSULT-III Function (ABS)
INFOID:0000000003937729
FUNCTION
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
SELF-DIAG RESULTS MODE
Operation Procedure
1.
Before performing the self-diagnosis, start engine and drive vehicle at 30 km/h (19 MPH) or more for
approximately 1 minute.
How to Erase Self-diagnosis Results
1.
After erasing DTC memory, start engine and drive 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 OFF indicator lamp,
SLIP indicator 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 OFF indicator lamp, SLIP indicator 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 approxi-
mately 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.
Display Item List
DATA MONITOR MODE
Display Item List
Diagnostic test mode
Function
Work support
Supports inspections and adjustments. Commands are transmitted to the ABS actuator and
electric unit (control unit) for setting the status suitable for required operation, input/output sig-
nals are received from the ABS actuator and electric unit (control unit) and received data is dis-
played.
Data monitor
Displays ABS actuator and electric unit (control unit) input/output data in real time.
Active test
Operation of electrical loads can be checked by sending drive signals to them.
Self-diagnostic result
Displays ABS actuator and electric unit (control unit) self-diagnosis results.
CAN diag support monitor
The result of transmit/receive diagnosis of CAN communication can be read.
ECU identification
ABS actuator and electric unit (control unit) part number can be read.
Item
(Unit)
Data monitor item selection
Remarks
ECU INPUT
SIGNALS
MAIN
SIGNALS
SELECTION
FROM MENU
GEAR
(1, 2, 3, 4, 5)
×
×
×
Gear position determined by TCM is
displayed.
FR RH SENSOR
(km/h, MPH)
×
×
×
Wheel speed calculated by front RH
wheel sensor signal is displayed.
FR LH SENSOR
(km/h, MPH)
×
×
×
Wheel speed calculated by front LH
wheel sensor signal is displayed.
RR RH SENSOR
(km/h, MPH)
×
×
×
Wheel speed calculated by rear RH
wheel sensor signal is displayed.
2009 Pathfinder
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
BRC-27
< FUNCTION DIAGNOSIS >
[TYPE 1]
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BRC
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RR LH SENSOR
(km/h, MPH)
×
×
×
Wheel speed calculated by rear LH
wheel sensor signal is displayed.
BATTERY VOLT
(V)
×
×
×
Voltage supplied to ABS actuator
and electric unit (control unit) is dis-
played.
N POSI SIG
(ON/OFF)
–
–
×
Shift position (ON/OFF) judged by
PNP switch signal.
P POSI SIG
(ON/OFF)
–
–
×
Shift position (ON/OFF) judged by
PNP switch signal.
ACCEL POS SIG
(%)
×
–
×
Throttle valve open/close status
judged by CAN communication sig-
nal is displayed.
ENGINE SPEED
(rpm)
×
×
×
Engine speed judged by CAN com-
munication signal is displayed.
STR ANGLE SIG
(deg)
×
–
×
Steering angle detected by steering
angle sensor is displayed.
YAW RATE SEN
(d/s)
×
×
×
Yaw rate detected by yaw rate sen-
sor is displayed.
SIDE G-SENSOR
(m/s
2
)
×
–
×
Transverse acceleration detected
by side G-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) status
is displayed.
ABS WARN LAMP
(ON/OFF)
–
×
×
ABS warning lamp (ON/OFF) status
is displayed.
SLIP LAMP
(ON/OFF)
–
×
×
SLIP indicator 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.
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.
Item
(Unit)
Data monitor item selection
Remarks
ECU INPUT
SIGNALS
MAIN
SIGNALS
SELECTION
FROM MENU
2009 Pathfinder
BRC-28
< FUNCTION DIAGNOSIS >
[TYPE 1]
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
CV1
(ON/OFF)
–
–
×
Front side switch-over solenoid
valve (cut valve) (ON/OFF) status is
displayed.
CV2
(ON/OFF)
–
–
×
Rear side switch-over solenoid
valve (cut-valve) (ON/OFF) status is
displayed.
SV1
(ON/OFF)
–
–
×
Front side switch-over solenoid
valve (suction valve) (ON/OFF) sta-
tus is displayed.
SV2
(ON/OFF)
–
–
×
Rear side switch-over solenoid
valve (suction valve) (ON/OFF) sta-
tus 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.
EBD WARN LAMP
(ON/OFF)
–
–
×
Brake warning lamp (ON/OFF) sta-
tus is displayed.
SLCT LVR POSI
(P, R, N, D)
×
×
×
Shift position judged by PNP switch
signal.
R POSI SIG
(ON/OFF)
–
–
×
Shift position judged by PNP switch
signal.
2WD/4WD
(2WD/4WD)
–
–
×
It recognizes on software whether it
is 2WD and whether it is in 4WD
state.
DECEL G-SEN*
(G)
×
×
×
Longitudinal acceleration detected
by decel G-sensor is displayed.
PRESS SENSOR**
(bar)
×
–
×
Brake pressure detected by pres-
sure sensor is displayed.
CRANKING SIG
(ON/OFF)
–
–
×
The input state of the key SW
START position signal is displayed.
PRESS SEN2**
(bar)
–
–
×
Brake pressure detected by pres-
sure sensor is displayed.
DELTA S SEN**
(in.)
–
–
×
The amount of stroke sensor move-
ments in the active booster detected
by DELTA S SEN is displayed.
Item
(Unit)
Data monitor item selection
Remarks
ECU INPUT
SIGNALS
MAIN
SIGNALS
SELECTION
FROM MENU
2009 Pathfinder
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
BRC-29
< FUNCTION DIAGNOSIS >
[TYPE 1]
C
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BRC
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×
: Applicable
–: Not applicable
*: with VQ40DE
**: with VK56DE
ACTIVE TEST MODE
CAUTION:
• Do not perform active test while driving vehicle.
• Make sure to completely bleed air from brake system.
• The active test cannot be performed with the ABS warning lamp, VDC OFF indicator lamp, SLIP indi-
cator lamp or brake warning lamp 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” is displayed 10 seconds after operation start.
• After “TEST IS STOPPED” is displayed, to perform test again, touch BACK.
Test Item
SOLENOID VALVE
• When performing an active test of the ABS function, select the “MAIN SIGNALS” for each test item. In addi-
tion, when performing an active test of the VDC/TCS function, select the item menu for each test item.
• For ABS solenoid valve, touch “Up”, “Keep”, and “Down” on the display screen. For ABS solenoid valve
(ACT), touch “Up”, “ACT UP”, “ACT KEEP” and confirm that solenoid valves operate as shown in the table
below.
RELEASE SW NO**
(ON/OFF)
–
–
×
Release switch signal (ON/OFF)
status is displayed. “ON” indicates
that the brake pedal is depressed.
“OFF”“ is that the brake pedal is re-
leased.
RELEASE SW NC**
(ON/OFF)
–
–
×
Release switch signal (ON/OFF)
status is displayed. “OFF” indicates
that the brake pedal is depressed
on. “ON” is that the brake pedal is
released.
OHB FAIL**
(ON/OFF)
–
–
×
OHB fail status is displayed.
OHB SIG**
(ON/OFF)
–
–
×
OHB operation (ON/OFF) status is
displayed.
Item
(Unit)
Data monitor item selection
Remarks
ECU INPUT
SIGNALS
MAIN
SIGNALS
SELECTION
FROM MENU
Operation
ABS solenoid valve
ABS solenoid valve (ACT)
Up
Keep
Down
Up
ACT UP
ACT KEEP
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*
—
—
—
2009 Pathfinder
BRC-30
< FUNCTION DIAGNOSIS >
[TYPE 1]
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
*: On for 1 to 2 seconds after the touch, and then Off
ABS MOTOR
• Touch “On” and “Off” on screen. Make sure motor relay and actuator relay operates as shown in table below.
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
CV1
—
—
—
Off
On
On
SV1
—
—
—
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
CV2
—
—
—
Off
On
On
SV2
—
—
—
Off
On*
Off
REAR SOL
This item is not used for this model.
Operation
ABS solenoid valve
ABS solenoid valve (ACT)
Up
Keep
Down
Up
ACT UP
ACT KEEP
Operation
On
Off
MOTOR RELAY
On
Off
ACTUATOR RLY
On
On
2009 Pathfinder
APPLICATION NOTICE
BRC-31
< COMPONENT DIAGNOSIS >
[TYPE 1]
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COMPONENT DIAGNOSIS
APPLICATION NOTICE
Application Notice
INFOID:0000000003937730
Service information
Remarks
TYPE 1
VDC/TCS/ABS
TYPE 2
HILL DESCENT CONTROL/HILL START ASSIST/VDC/TCS/ABS
2009 Pathfinder
BRC-32
< COMPONENT DIAGNOSIS >
[TYPE 1]
C1101, C1102, C1103, C1104 WHEEL SENSOR-1
C1101, C1102, C1103, C1104 WHEEL SENSOR-1
Description
INFOID:0000000003937731
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:0000000003937732
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
CHECK SELF-DIAGNOSIS RESULTS
Check the self-diagnosis results.
Is above displayed on the self-diagnosis display?
YES
>> Proceed to diagnosis procedure. Refer to
.
NO
>> Inspection End
Diagnosis Procedure
INFOID:0000000003937733
CAUTION:
Do not check between wheel sensor terminals.
INSPECTION PROCEDURE
1.
CONNECTOR INSPECTION
Disconnect the ABS actuator and electric unit (control unit) connector and wheel sensor connector of malfunc-
tioning code.
Check the terminals for deformation, disconnection, looseness or damage.
Is the inspection result normal?
YES
>> GO TO 2
NO
>> Repair or replace as necessary.
2.
CHECK WHEEL SENSOR OUTPUT SIGNAL
1.
Connect ABS active wheel sensor tester (J-45741) to wheel sensor using appropriate adapter.
2.
Turn on the ABS active wheel sensor tester power switch.
NOTE:
The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the
battery in the ABS active wheel sensor tester before proceeding.
3.
Spin the wheel of the vehicle by hand and observe the red SENSOR indicator on the ABS active wheel
sensor tester. The red SENSOR indicator should flash on and off to indicate an output signal.
DTC
Display item
Malfunction detected condition
Possible cause
C1101
RR RH SENSOR-1
Circuit of rear RH wheel sensor is open. Or when the sen-
sor power voltage is outside the standard.
• Harness or connector
• Wheel sensor
• ABS actuator and electric unit
(control unit)
C1102
RR LH SENSOR-1
Circuit of rear LH wheel sensor is open. Or when the sen-
sor power voltage is outside the standard.
C1103
FR RH SENSOR-1
Circuit of front RH wheel sensor is open. Or when the
sensor power voltage is outside the standard.
C1104
FR LH SENSOR-1
Circuit of front LH wheel sensor is open. Or when the
sensor power voltage is outside the standard.
Self-diagnosis results
RR RH SENSOR-1
RR LH SENSOR-1
FR RH SENSOR-1
FR LH SENSOR-1
2009 Pathfinder
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