Infiniti QX56 (JA60). Manual — part 127
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EBD
BRC-21
< FUNCTION DIAGNOSIS >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
Component Parts Location
INFOID:0000000005206967
1.
Front wheel sensor LH E18
Front wheel sensor RH E117
2.
ABS actuator and electric unit (con-
trol unit) E125
3.
Combination meter M23, M24
4.
Rear wheel sensor LH C11
Rear wheel sensor RH C10
5.
Yaw rate/side/decel G sensor M108 6.
Steering angle sensor M17
AWFIA0572GB
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BRC-22
< FUNCTION DIAGNOSIS >
[VDC/TCS/ABS]
EBD
Component Description
INFOID:0000000005206968
7.
VDC OFF switch M253
8.
Active booster E49
9.
Delta stroke sensor E114
10. Brake fluid level switch E21
11. Front pressure sensor E31
12. Rear pressure sensor E32
Component parts
Reference
ABS actuator and electric unit (control unit)
Pump
Motor
Actuator relay
Solenoid valve
Wheel sensor
ABS warning lamp
Brake warning lamp
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DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
BRC-23
< FUNCTION DIAGNOSIS >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
CONSULT-III Function (ABS)
INFOID:0000000005147962
FUNCTION
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
SELF DIAGNOSTIC RESULT 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
This mode enables a technician to adjust some devices faster and more accurately by following
the indications on CONSULT-III.
Data Monitor
Input/Output data in the ABS actuator and electric unit (control unit) can be read.
Active Test
Diagnostic test mode is which CONSULT-III drives some actuators apart from the ABS actuator
and electric unit (control unit) and also shifts some parameters in a specified range.
Self Diagnostic Result
Self-diagnostic results can be read and erased quickly.
CAN diag support monitor
The results 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
FR LH SENSOR
(km/h, mph)
×
×
×
Wheel speed (km/h, mph) calculated by front LH
wheel sensor signal is displayed.
FR RH SENSOR
(km/h, mph)
×
×
×
Wheel speed (km/h, mph) calculated by front RH
wheel sensor signal is displayed.
RR LH SENSOR
(km/h, mph)
×
×
×
Wheel speed (km/h, mph) calculated by rear LH
wheel sensor signal is displayed.
RR RH SENSOR
(km/h, mph)
×
×
×
Wheel speed (km/h, mph) calculated by rear RH
wheel sensor signal is displayed.
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BRC-24
< FUNCTION DIAGNOSIS >
[VDC/TCS/ABS]
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
DECEL G-SEN
(G)
×
×
×
Longitudinal acceleration (G) detected by decel G-
sensor is displayed.
FR RH IN SOL
(On/Off)
–
×
×
Front RH IN ABS solenoid (On/Off) status is dis-
played.
FR RH OUT SOL
(On/Off)
–
×
×
Front RH OUT ABS solenoid (On/Off) status is dis-
played.
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 dis-
played.
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 dis-
played.
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 dis-
played.
EBD WARN LAMP
(On/Off)
–
–
×
Brake warning lamp (On/Off) status is displayed.
STOP LAMP SW
(On/Off)
×
×
×
Stop lamp switch (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 WARN LAMP
(On/Off)
–
×
×
ABS warning lamp (On/Off) status is displayed.
OFF LAMP
(On/Off)
–
×
×
VDC OFF Lamp (On/Off) status is displayed.
OFF SW
(On/Off)
×
×
×
VDC OFF switch (On/Off) status is displayed.
SLIP LAMP
(On/Off)
–
×
×
SLIP indicator lamp (On/Off) status is displayed.
BATTERY VOLT
(V)
×
×
×
Voltage (V) supplied to ABS actuator and electric unit
(control unit) is displayed.
GEAR
(1, 2, 3, 4, 5)
×
×
×
Gear position (1, 2, 3, 4, 5) judged by transmission
range switch signal is displayed.
SLCT LVR POSI
(P, N, D)
×
×
×
Shift position (P, N, D) judged by transmission range
switch signal.
ENGINE SPEED
(rpm)
×
×
×
Engine speed (rpm) judged by CAN communication
signal is displayed.
YAW RATE SEN
(d/s)
×
×
×
Yaw rate (d/s) detected by yaw rate sensor is dis-
played.
R POSI SIG
(On/Off)
–
–
×
Reverse shift position (On/Off) judged by PNP switch
signal.
4WD FAIL REQ
(On/Off)
–
–
×
Transfer control unit fail-safe mode (On/Off) is dis-
played.
N POSI SIG
(On/Off)
–
–
×
Shift position judged by transmission range switch
signal.
Item
(Unit)
Data monitor item selection
Remarks
ECU INPUT
SIGNALS
MAIN
SIGNALS
SELECTION
FROM MENU
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