Qashqai J11. Brake control system — part 3
SYSTEM
BRC-33
< SYSTEM DESCRIPTION >
[WITH ESP]
C
D
E
G
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J
K
L
M
A
B
BRC
N
O
P
BRAKE ASSIST FUNCTION : System Description
INFOID:0000000010329795
• When the driver brakes hard in an emergency, the stopping distance is reduced by increasing brake fluid
pressure.
• Fail-safe function is adopted. When a malfunction occurs in Brake assist function, the control is suspended
for ESP/VDC function, TCS function, Brake limited slip differential (BLSD) function, Brake assist function, hill
start assist function and Brake force distribution function. The vehicle status becomes the same as models
without ESP/VDC function, TCS function, Brake limited slip differential (BLSD) function, Brake assist func-
tion, hill start assist function and Brake force distribution function. However, ABS function and EBD function
are operated normally. Refer to
SYSTEM DIAGRAM
INPUT SIGNAL AND OUTPUT SIGNAL
Major signal transmission between each unit via communication lines is shown in the following table.
ALFIA0420GB
Component
Signal description
ECM
Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• Accelerator pedal position signal
• Engine speed signal
• Engine torque signal
Mainly receives the following signals from ABS actuator and electric unit (control unit) via CAN
communication.
• Engine torque request signal
TCM
Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• Current gear position signal
Chassis control module
Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• Active trace control signal
BRC-34
< SYSTEM DESCRIPTION >
[WITH ESP]
SYSTEM
hill start assist FUNCTION
hill start assist FUNCTION : System Description
INFOID:0000000010329798
• This function maintains brake fluid pressure so that the vehicle does not move backwards even if brake
pedal is released to depress accelerator pedal to start the vehicle while it is stopped on an uphill slope by
depressing brake pedal.
• This function operates when the vehicle is in stop status on a uphill slope of slope ratio 5% or more and
selector lever is in the position other than P or N.
• hill start assist function is only for the start aid. It maintains the brake fluid pressure for approx. 2 seconds
after releasing the brake pedal, and then decreases the pressure gradually. If the vehicle can start by the
accelerator operation, the brake is released automatically and a smooth start can be performed.
• Fail-safe function is adopted. When a malfunction occurs in hill start assist function, the control is suspended
for ESP/VDC function, TCS function, Brake limited slip differential (BLSD) function, Brake assist function, hill
start assist function and Brake force distribution function. The vehicle status becomes the same as models
without ESP/VDC function, TCS function, Brake limited slip differential (BLSD) function, Brake assist func-
tion, hill start assist function and Brake force distribution function. However, ABS function and EBD function
are operated normally. Refer to
.
Combination meter
Mainly receives the following signals from ABS actuator and electric unit (control unit) via CAN
communication.
• Brake fluid level switch signal
• Parking brake switch signal
Mainly receives the following signals from ABS actuator and electric unit (control unit) via CAN
communication.
• ESP/VDC warning lamp signal
• ESP/VDC OFF indicator lamp signal
Steering angle sensor
Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• Steering angle sensor signal
• Steering angle sensor malfunction signal
Component
Signal description
SYSTEM
BRC-35
< SYSTEM DESCRIPTION >
[WITH ESP]
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A
B
BRC
N
O
P
SYSTEM DIAGRAM
INPUT SIGNAL AND OUTPUT SIGNAL
Major signal transmission between each unit via communication lines is shown in the following table.
BRAKE FORCE DISTRIBUTION FUNCTION
E1FIA0167GB
Component
Signal description
ECM
Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• Accelerator pedal position signal
• Engine speed signal
• Engine torque signal
Mainly receives the following signals from ABS actuator and electric unit (control unit) via CAN
communication.
• Engine torque request signal
TCM
Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• Current gear position signal
Combination meter
Mainly receives the following signals from ABS actuator and electric unit (control unit) via CAN
communication.
• Brake fluid level switch signal
• Parking brake switch signal
Mainly receives the following signals from ABS actuator and electric unit (control unit) via CAN
communication.
• ESP/VDC warning lamp signal
• ESP/VDC OFF indicator lamp signal
BCM
Transmits the following signals to the ABS via CAN.
• Stop lamp switch
USM
Transmits the following signals to the ABS via CAN.
• Neutral position switch
• Reverse position switch
BRC-36
< SYSTEM DESCRIPTION >
[WITH ESP]
SYSTEM
BRAKE FORCE DISTRIBUTION FUNCTION : System Description
INFOID:0000000010329799
• Brake force distribution function is controlled by ABS actuator and electric unit (control unit).
• Brake force distribution function helps provide a more stable and
secure feeling.
• During cornering, when brake operation is performed brake fluid
pressure of each wheel is controlled based on steering operation
amount by the driver and vehicle cornering status amount detected
by each sensor.
• Fail-safe function is adopted. When a malfunction occurs in Brake
force distribution function, the control is suspended for VDC func-
tion, TCS function, Brake limited slip differential (BLSD) function,
Brake assist function, hill start assist function and Brake force dis-
tribution function. The vehicle status becomes the same as models
without ESP/VDC function, TCS function, Brake limited slip differ-
ential (BLSD) function, Brake assist function, hill start assist func-
tion and Brake force distribution function. However, ABS function
and EBD function are operated normally. Refer to
NOTE:
Brake force distribution function may not always be operates in all driving conditions.
SYSTEM DIAGRAM
INPUT SIGNAL AND OUTPUT SIGNAL
Major signal transmission between each unit via communication lines is shown in the following table.
JPFIC0171GB
JPFIC0172GB
ALFIA0420GB
SYSTEM
BRC-37
< SYSTEM DESCRIPTION >
[WITH ESP]
C
D
E
G
H
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J
K
L
M
A
B
BRC
N
O
P
ACTIVE TRACE CONTROL FUNCTION
ACTIVE TRACE CONTROL FUNCTION : System Description
INFOID:0000000010329800
• Active trace control function controls the braking utilizing the ABS actuator and electric unit (control unit),
depending on cornering condition calculated from driver's steering input and plural sensors.
• Active trace control function is aimed to enhance traceability at corners and smooth the vehicle movement to
provide confident driving.
• When the ESP/VDC OFF switch is used to turn OFF the ESP/VDC system, the active trace control system is
also turned OFF.
• When the active trace control is operated, active trace control graphics are shown on the information display
of combination meter. These are shown only when “Chassis control” is selected on the information display.
Refer to
MWI-17, "INFORMATION DISPLAY : System Description"
• When the active trace control is not functioning properly, the master warning lamp illuminates. Warning mes-
sage “Chassis control” will also appear on information display.
NOTE:
• The active trace control may not be effective depending on the driving condition. Always driving carefully and
attentively.
• Brake pedal may vibrate and brake pedal feel may change during active trace control operation. Also opera-
tion noise may be noticeable during operation. These are not abnormal conditions.
• When the active trace control is selected OFF, some functions will be kept ON to assist driver. (For example,
avoidance condition.)
OPERATION CHARACTERISTICS
Component
Signal description
ECM
Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• Accelerator pedal position signal
• Engine speed signal
• Engine torque signal
Mainly receives the following signals from ABS actuator and electric unit (control unit) via CAN
communication.
• Engine torque request signal
TCM
Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• Current gear position signal
Chassis control module
Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• Active trace control signal
Combination meter
Mainly receives the following signals from ABS actuator and electric unit (control unit) via CAN
communication.
• Brake fluid level switch signal
• Parking brake switch signal
Mainly receives the following signals from ABS actuator and electric unit (control unit) via CAN
communication.
• Brake warning lamp signal
• ABS warning lamp signal
• ESP/VDC warning lamp signal
• ESP/VDC OFF indicator lamp signal
Steering angle sensor
Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• Steering angle sensor signal
• Steering angle sensor malfunction signal
BRC-38
< SYSTEM DESCRIPTION >
[WITH ESP]
SYSTEM
Active trace control helps enhance the transition from braking into
and then accelerating out of corners. Active trace control utilizes the
vehicle
′
s electrically-driven intelligent brake system to help improve
cornering feel by automatically applying brakes. Furthermore, Active
trace control will apply selective braking to help create increased
steering response in S-turns. For example, if driving through an S-
turn that starts with steering to the right, the right-side brakes are
engaged to create a yaw momentum and help turn the vehicle.
• Brake control amount is controlled according to steering operation status by the driver and vehicle cornering
status.
JPFIC0167GB
JSFIA2098GB
SYSTEM
BRC-39
< SYSTEM DESCRIPTION >
[WITH ESP]
C
D
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BRC
N
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• During cornering, the brake control system limits changes in steer-
ing angle by controlling the inner ring brakes according to acceler-
ator pedal operation and allows smooth movement of the vehicle
to achieve stable cornering.
SYSTEM DIAGRAM
INPUT SIGNAL AND OUTPUT SIGNAL
Major signal transmission between each unit via communication lines is shown in the following table.
JSFIA2009GB
ALFIA0422GB
BRC-40
< SYSTEM DESCRIPTION >
[WITH ESP]
SYSTEM
WARNING/INDICATOR/CHIME LIST
WARNING/INDICATOR/CHIME LIST : Warning Lamp/Indicator Lamp
INFOID:0000000010329801
Component
Signal description
ECM
Mainly transmits the following signals to chassis control module via CAN communication.
• Accelerator pedal position signal
• Engine torque signal
• Engine speed signal
TCM
Mainly transmits the following signals to chassis control module via CAN communication.
• Current gear position signal
ABS actuator and electric unit (control
unit)
Mainly transmits the following signals to chassis control module via CAN communication.
• Front LH wheel speed signal
• Front RH wheel speed signal
• Rear LH wheel speed signal
• Rear RH wheel speed signal
• ABS operation signal
• TCS operation signal
• VDC operation signal
• Stop lamp switch signal
• Vehicle speed signal (ABS)
• Yaw rate signal
• Side G signal
• Decel G signal
• ESP/VDC OFF switch signal
• Brake fluid pressure signal
• Steering angle sensor signal
Mainly receives the following signals from chassis control module via CAN communication.
• Active trace control signal
Steering angle sensor
Mainly transmits the following signals to chassis control module via CAN communication.
• Steering angle sensor signal
Chassis control module
Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• Active Trace Control signal
• Drive mode signal
Display control unit
Mainly transmits the following signals to chassis control module via CAN communication line.
• System selection signal
Combination meter
Mainly receives the following signals from chassis control module via CAN communication.
• Chassis control malfunction signal
• Active trace control display signal
Name
Design
Layout/Function
ABS warning lamp
or
For layout: Refer to
BRC-28, "ABS FUNCTION : System Description"
.
For function: Refer to
BRC-125, "Component Function Check"
Brake warning lamp
or
For layout: Refer to
BRC-36, "BRAKE FORCE DISTRIBUTION FUNCTION : System De-
For function: Refer to
SYSTEM
BRC-41
< SYSTEM DESCRIPTION >
[WITH ESP]
C
D
E
G
H
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J
K
L
M
A
B
BRC
N
O
P
ESP/VDC OFF indi-
cator lamp
For function: Refer to
BRC-24, "VDC FUNCTION : System Description"
ESP/VDC warning
lamp
For function: Refer to
BRC-24, "VDC FUNCTION : System Description"
Name
Design
Layout/Function
BRC-42
< SYSTEM DESCRIPTION >
[WITH ESP]
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
CONSULT Function
INFOID:0000000010329802
APPLICATION ITEMS
CONSULT can display each diagnostic item using the diagnostic test modes as follows.
*
: The following diagnosis information is erased by erasing.
• DTC
• Freeze frame data (FFD)
ECU IDENTIFICATION
ABS actuator and electric unit (control unit) part number can be read.
SELF DIAGNOSTIC RESULT
.
When “CRNT” is displayed on self-diagnosis result,
• The system is presently malfunctioning.
When “PAST” is displayed on self-diagnosis result,
• System malfunction in the past is detected, but the system is presently normal.
Freeze frame data (FFD)
The following vehicle status is recorded when DTC is detected and is displayed on CONSULT.
ACTIVE TEST
The active test is used to determine and identify details of a malfunction, based on self-diagnosis test results
and data obtained in the DATA MONITOR. In response to instructions from CONSULT, instead of those from
ABS actuator and electric unit (control unit) on the vehicle, a drive signal is sent to the actuator to check its
operation.
CAUTION:
• Never perform ACTIVE TEST while driving the vehicle.
• Always bleed air from brake system before active test.
• Never perform active test when system is malfunctioning.
NOTE:
• When active test is performed while depressing the pedal, the pedal depressing stroke may change. This is
not a malfunction.
• “TEST IS STOPPED” is displayed approx. 10 seconds after operation start.
Mode
Function description
ECU identification
Parts number of ABS actuator and electric unit (control unit) can be read.
Self Diagnostic Result
Self-diagnostic results and freeze frame data 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
Diagnostic Test Mode in which CONSULT drives some actuators apart from the ABS actuator and elec-
tric unit (control unit) and also shifts some parameters in a specified range.
WORK SUPPORT
Components can be quickly and accurately adjusted.
Re/programming, Configura-
tion
• Read and save the vehicle specification (TYPE ID).
• Write the vehicle specification (TYPE ID) when replacing ABS actuator and electric unit (control unit).
Item name
Display item
IGN counter
(0
−
39)
The number of times that ignition switch is turned ON after the DTC is detected is displayed.
• When “0” is displayed: It indicates that the system is presently malfunctioning.
• When except “0” is displayed: It indicates that system malfunction in the past is detected, but the system is pres-
ently normal.
NOTE:
Each time when ignition switch is turned OFF to ON, numerical number increases in 1
→
2
→
3...38
→
39. When
the operation number of times exceeds 39, the number do not increase and “39” is displayed until self-diagnosis
is erased.
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
BRC-43
< SYSTEM DESCRIPTION >
[WITH ESP]
C
D
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A
B
BRC
N
O
P
• When performing active test again after “TEST IS STOPPED” is displayed, select “BACK”.
• ABS warning lamp, brake warning lamp and VDC warning lamp may turn ON during active test. This is not a
malfunction.
ABS IN Valve and ABS OUT Valve
When “Up”, “Keep” or “Down” is selected on display screen, the following items are displayed when system is
normal.
*: Immediately after being selected, status is “On”. Status changes to “Off” after approx. 2 seconds.
ABS IN Valve (ACT) and ABS OUT Valve (ACT)
When “Up”, “ACT UP” or “ACT KEEP” is selected on display screen, the following items are displayed when
system is normal.
*: Immediately after being selected, status is “On”. Status changes to “Off” after approx. 10 seconds.
ABS MOTOR
When “On” or “Off” is selected on display screen, the following items are displayed when system is normal.
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*
CV2
Off
Off
Off
FR LH SPL
FR LH IN SOL
Off
On*
On*
FR LH OUT SOL
Off
Off
On*
CV1
Off
Off
Off
RR RH SOL
RR RH IN SOL
Off
On*
On*
RR RH OUT SOL
Off
Off
On*
CV1
Off
Off
Off
RR LH SOL
RR LH IN SOL
Off
On*
On*
RR LH OUT SOL
Off
Off
On*
CV2
Off
Off
Off
Test item
Display Item
Display
Up
ACT UP
ACT KEEP
FR RH SOL (ACT)
FR RH IN SOL
Off
Off
Off
FR RH OUT SOL
Off
Off
Off
CV2
Off
On*
On*
FR LH SOL (ACT)
FR LH IN SOL
Off
Off
Off
FR LH OUT SOL
Off
Off
Off
CV1
Off
On*
On*
RR RH SOL (ACT)
RR RH IN SOL
Off
Off
Off
RR RH OUT SOL
Off
Off
Off
CV1
Off
On*
On*
RR LH SOL (ACT)
RR LH IN SOL
Off
Off
Off
RR LH OUT SOL
Off
Off
Off
CV2
Off
On*
On*
Test item
Display Item
Display
On
Off
ABS MOTOR
MOTOR RELAY
On
Off
ACTUATOR RLY
(Note)
On
On
BRC-44
< SYSTEM DESCRIPTION >
[WITH ESP]
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
NOTE:
Display occasionally changes On/Off for a moment after ignition switch is turned ON. This is operation for
checking purposes and is not a malfunction.
DATA MONITOR
NOTE:
The following table includes information (items) inapplicable to this vehicle. For information (items) applicable
to this vehicle, refer to CONSULT display items.
×
: Applicable
Item (Unit)
Monitor item selection
Note
INPUT SIGNALS
MAIN SIGNALS
FR LH SENSOR
[km/h (MPH)]
×
×
Wheel speed calculated by front LH wheel sensor is dis-
played.
FR RH SENSOR
[km/h (MPH)]
×
×
Wheel speed calculated by front RH wheel sensor is dis-
played.
RR LH SENSOR
[km/h (MPH)]
×
×
Wheel speed calculated by rear LH wheel sensor is dis-
played.
RR RH SENSOR
[km/h (MPH)]
×
×
Wheel speed calculated by rear RH wheel sensor is dis-
played.
DECEL G-SEN
(m/s
2
)
×
Decel G detected by decel G sensor is displayed.
FR RH IN SOL
(On/Off)
×
Operation status of front RH wheel ABS IN valve is dis-
played.
FR RH OUT SOL
(On/Off)
×
Operation status of front RH wheel ABS OUT valve is dis-
played.
FR LH IN SOL
(On/Off)
×
Operation status of front LH wheel ABS IN valve is dis-
played.
FR LH OUT SOL
(On/Off)
×
Operation status of front LH wheel ABS OUT valve is dis-
played.
RR RH IN SOL
(On/Off)
×
Operation status of rear RH wheel ABS IN valve is dis-
played.
RR RH OUT SOL
(On/Off)
×
Operation status of rear RH wheel ABS OUT valve is dis-
played.
RR LH IN SOL
(On/Off)
×
Operation status of rear LH wheel ABS IN valve is dis-
played.
RR LH OUT SOL
(On/Off)
×
Operation status of rear LH wheel ABS OUT valve is dis-
played.
EBD WARN LAMP
(On/Off)
Brake warning lamp ON/OFF status is displayed.
(Note 1)
STOP LAMP SW
(On/Off)
×
×
Stop lamp switch signal input status is displayed.
MOTOR RELAY
(On/Off)
×
ABS motor and motor relay status is displayed.
ACTUATOR RLY
(On/Off)
×
ABS actuator relay status is displayed.
ABS WARN LAMP
(On/Off)
×
ABS warning lamp ON/OFF status is displayed.
(Note 1)
OFF LAMP
(On/Off)
×
ESP/VDC OFF indicator lamp ON/OFF status is dis-
played.
(Note 1)
SLIP/VDC LAMP
(On/Off)
×
ESP/VDC warning lamp ON/OFF status is displayed.
(Note 1)
BATTERY VOLT
(V)
×
×
Voltage supplied to ABS actuator and electric unit (control
unit) is displayed.
GEAR
×
×
Current gear position judged from current gear position sig-
nal is displayed.
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
BRC-45
< SYSTEM DESCRIPTION >
[WITH ESP]
C
D
E
G
H
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J
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L
M
A
B
BRC
N
O
P
SLCT LVR POSI
×
×
Current gear position judged from current gear position sig-
nal is displayed.
YAW RATE SEN
(d/s)
×
×
Yaw rate detected by yaw rate sensor is displayed.
R POSI SIG
(On/Off)
R range signal input status judged from R range signal is
displayed.
4WD MODE MON
(Note 2)
(AUTO/LOCK/2WD)
×
×
AWD control status is displayed.
N POSI SIG
(On/Off)
N range signal input status judged from N range signal is
displayed.
P POSI SIG
(On/Off)
P range signal input status judged from P range signal is dis-
played.
ACCEL POS SIG
(%)
×
Displays the Accelerator pedal position
SIDE G-SENSOR
(m/s
2
))
×
Side G detected by side G sensor is displayed.
STR ANGLE SIG
×
Steering angle detected by steering angle sensor is dis-
played.
PRESS SENSOR
(bar)
×
Brake fluid pressure detected by pressure sensor is dis-
played.
EBD SIGNAL
(On/Off)
EBD operation status is displayed.
ABS SIGNAL
(On/Off)
ABS operation status is displayed.
TCS SIGNAL
(On/Off)
TCS operation status is displayed.
VDC SIGNAL
(On/Off)
ESP/VDC operation status is displayed.
EBD FAIL SIG
(On/Off)
EBD fail-safe signal status is displayed.
ABS FAIL SIG
(On/Off)
ABS fail-safe signal status is displayed.
TCS FAIL SIG
(On/Off)
TCS fail-safe signal status is displayed.
VDC FAIL SIG
(On/Off)
ESP/VDC fail-safe signal status is displayed.
CRANKING SIG
(On/Off)
Cranking status is displayed.
FLUID LEV SW
(On/Off)
×
Brake fluid level signal input status via CAN communication
is displayed.
PARK BRAKE SW
(On/Off)
×
Parking brake switch signal input status via CAN communi-
cation is displayed.
USV[FL-RR]
(On/Off)
Primary side USV solenoid valve (On/Off) status is dis-
played.
USV[FR-RL]
(On/Off)
Secondary side USV solenoid valve (On/Off) status is dis-
played.
HSV[FL-RR]
(On/Off)
Primary side HSV solenoid valve (On/Off) status is dis-
played.
HSV[FR-RL]
(On/Off)
Secondary side USV solenoid valve (On/Off) status is dis-
played.
Item (Unit)
Monitor item selection
Note
INPUT SIGNALS
MAIN SIGNALS
BRC-46
< SYSTEM DESCRIPTION >
[WITH ESP]
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
Note 1: Refer to
for ON/OFF conditions of each warning lamp and indicator
lamp.
Note 2: AWD models
Note 3: “USS” means “hill start assist”
WORK SUPPORT
V/R OUTPUT
(On/Off)
Valve relay operation signal (On/Off) status is displayed.
M/R OUTPUT
(On/Off)
Motor relay operation signal (On/Off) status is displayed.
ENGINE RPM
(tr/min)
×
Engine speed status is displayed.
USS SIG
(Note 3)
(On/Off)
hill start assist operation status is displayed.
Item (Unit)
Monitor item selection
Note
INPUT SIGNALS
MAIN SIGNALS
Conditions
Description
ST ANGLE SENSOR ADJUSTMENT
Perform neutral position adjustment of steering angle sensor.
DECEL G SEN CALIBRATION
Perform decel G sensor calibration.
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
BRC-47
< ECU DIAGNOSIS INFORMATION >
[WITH ESP]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
ECU DIAGNOSIS INFORMATION
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
Reference Value
INFOID:0000000010427931
CONSULT DATA MONITOR STANDARD VALUE
NOTE:
The following table includes information (items) inapplicable to this vehicle. For information (items) applicable
to this vehicle, refer to CONSULT display items.
Monitor item
Condition
Reference values in normal operation
FR LH SENSOR
Vehicle stopped
0.00 km/h (MPH)
When driving
(Note 1)
Nearly matches the speedometer dis-
play (within
±
10%)
FR RH SENSOR
Vehicle stopped
0.00 km/h (MPH)
When driving
(Note 1)
Nearly matches the speedometer dis-
play (within
±
10%)
RR LH SENSOR
Vehicle stopped
0.00 km/h (MPH)
When driving
(Note 1)
Nearly matches the speedometer dis-
play (within
±
10%)
RR RH SENSOR
Vehicle stopped
0.00 km/h (MPH)
When driving
(Note 1)
Nearly matches the speedometer dis-
play (within
±
10%)
BATTERY VOLT
Ignition switch ON
10 – 16 V
STOP LAMP SW
Brake pedal depressed
On
Brake pedal not depressed
Off
OFF SW
VDC OFF switch ON
On
VDC OFF switch OFF
Off
YAW RATE SEN
Vehicle stopped
Approx. 0 d/s
Turning right
Negative value
Turning left
Positive value
FR RH IN SOL
Active
On
Not activated
Off
FR RH OUT SOL
Active
On
Not activated
Off
FR LH IN SOL
Active
On
Not activated
Off
FR LH OUT SOL
Active
On
Not activated
Off
RR RH IN SOL
Active
On
Not activated
Off
RR RH OUT SOL
Active
On
Not activated
Off
RR LH IN SOL
Active
On
Not activated
Off
RR LH OUT SOL
Active
On
Not activated
Off
BRC-48
< ECU DIAGNOSIS INFORMATION >
[WITH ESP]
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
MOTOR RELAY
Active
On
Not activated
Off
ACTUATOR RLY
Active
On
When not operating (in fail-safe mode)
Off
ABS WARN LAMP
When ABS warning lamp is ON
(Note 2)
On
When ABS warning lamp is OFF
(Note 2)
Off
OFF LAMP
When VDC OFF indicator lamp is ON
(Note 2)
On
When VDC OFF indicator lamp is OFF
(Note 2)
Off
SLIP/VDC LAMP
When VDC warning lamp is ON
(Note 2)
On
When VDC warning lamp is OFF
(Note 2)
Off
ACCEL POS SIG
Never depress accelerator pedal
(with ignition switch ON)
0%
Depress accelerator pedal
(with ignition switch ON)
0 – 100%
SIDE G-SENSOR
Vehicle stopped
Approx. 0 m/s
2
Right turn
Negative value
Left turn
Positive value
DECEL G-SEN
When stopped
Approx.
±
0.01 G
During acceleration
Positive value
During deceleration
Negative value
STR ANGLE SIG
When driving straight
0
±
3.5
°
When steering wheel is steered to RH by 90
°
Approx. +90
°
When steering wheel is steered to LH by 90
°
Approx. –90
°
ENGINE SPEED
Engine stopped
0 tr/min
Engine running
Almost same reading as tachometer
PRESS SENSOR
Brake pedal not depressed
Approx. 0 bar
Brake pedal depressed
(
−
40) – (+300 bar)
FLUID LEV SW
When brake fluid level switch is ON (brake fluid level
is less than the specified level)
On
When brake fluid level switch is OFF
Off
PARK BRAKE SW
When parking brake is active
On
Parking brake is released
Off
CV1
Active
On
Not activated
Off
CV2
Active
On
Not activated
Off
EBD SIGNAL
EBD activated
On
EBD not activated
Off
ABS SIGNAL
ABS is activated
On
ABS is not activated
Off
TCS SIGNAL
TCS activated
On
TCS not activated
Off
VDC SIGNAL
VDC activated
On
VDC not activated
Off
Monitor item
Condition
Reference values in normal operation
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