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BRC-25
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MOTOR RELAYOperation status of mo-
tor and motor relayIgnition switch ON or running
(ABS not activated)O INFINITI QX56 2007 Factory Service Manual TROUBLE DIAGNOSIS
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MOTOR RELAYOperation status of mo-
tor and motor relayIgnition switch ON or running
(ABS not activated)O](/manual-img/42/57029/w960_57029-952.png)
TROUBLE DIAGNOSIS
BRC-25
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MOTOR RELAYOperation status of mo-
tor and motor relayIgnition switch ON or running
(ABS not activated)OFF
BRC-39, "
Actuator Motor,
Motor Relay, and Circuit
Inspection"Ignition switch ON or engine
running (ABS activated)ON
ACTUATOR RLYActuator relay opera-
tion statusVehicle stopped (Ignition
switch ON)OFF
BRC-39, "
Actuator Motor,
Motor Relay, and Circuit
Inspection"Vehicle stopped (Engine run-
ning)ON
OFF LAMPVDC OFF indicator
lamp status (Note 3) When VDC OFF indicator
lamp is ONON
LAN-7
When VDC OFF indicator
lamp is OFFOFF
SLIP LAMPSLIP indicator lamp
status (Note 4)When SLIP indicator lamp is
ONON
LAN-7
When SLIP indicator lamp is
OFFOFF
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 SOLSolenoid valve opera-
tionActuator (solenoid) is active
(“ACTIVE TEST” with CON-
SULT-II) or actuator relay is in-
active (in fail-safe mode).ON
BRC-38, "
Solenoid and
VDC Change-Over Valve
System Inspection"
When actuator (solenoid) is not
active and actuator relay is ac-
tive (ignition switch ON).OFF
CV1
CV2
SV1
SV2VDC switch-over valve
statusWhen 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-SENLongitudinal accelera-
tion detected by Decel
G-SensorVehicle stopped Approx. 0 GBRC-37, "
Yaw Rate/Side/
Decel G Sensor System
Inspection"Vehicle running -1.7 to 1.7 G
PRESS SENSORBrake fluid pressure
detected by pressure
sensorDo not step on the Brake pedal
(When ignition switch is ON)Approx. 0 bar
—
Step on the Brake pedal (When
ignition switch is ON)-40 to 300 bar
FLUID LEV SWON/OFF status of
brake fluid level switchWhen brake fluid level switch
ONON
DI-26
When brake fluid level switch
OFF OFF
VDC SIGNAL
TCS SIGNAL
ABS SIGNAL
EBD SIGNALSignal statusVDC active
TCS active
ABS active
EBD activeON
VDC system
TCS system
ABS system
EBD system VDC not active
TCS not active
ABS not active
EBD not activeOFF Monitor item Display contentData monitor
Note: Error inspection
checklist
ConditionReference value in
normal operation
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< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Note 1: Confirm tire pressure is normal.
Note 2: ON/OFF timing of ABS warning lamp
ON: For approximately 2 seconds after ignition switch i INFINITI QX56 2007 Factory Service Manual BRC-26
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Note 1: Confirm tire pressure is normal.
Note 2: ON/OFF timing of ABS warning lamp
ON: For approximately 2 seconds after ignition switch i](/manual-img/42/57029/w960_57029-953.png)
BRC-26
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
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) and TCS/VDC function is not
activated.
Note 3: ON/OFF timing of VDC OFF indicator lamp
ON: For approximately 2 seconds after ignition switch is turned ON, or when a malfunction is detected and VDC OFF switch is ON.
OFF: Approximately 2 seconds 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: For approximately 2 seconds after ignition switch is turned ON, or when a malfunction is detected and TCS/VDC function is acti-
vated while driving.
OFF: Approximately 2 seconds after ignition switch is turned ON (when system is in normal operation) and TCS/VDC function is not
activated.
Flashing: TCS/VDC function is active during driving
CONSULT-II Function (ABS)INFOID:0000000003532783
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II START PROCEDURE
Refer to GI-36, "CONSULT-II Start Procedure".
SELF-DIAGNOSIS
Description
If an error is detected in the system, the ABS warning lamp will 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 carries out CAN communication.
VDC FAIL SIG
TCS FAIL SIG
ABS FAIL SIG
EBD FAIL SIGFail signal statusVDC fail
TCS fail
ABS fail
EBD failON
VDC system
TCS system
ABS system
EBD system VDC normal
TCS normal
ABS normal
EBD normalOFF Monitor item Display contentData monitor
Note: Error inspection
checklist
ConditionReference value in
normal operation
ABS diagnostic mode Description
WORK SUPPORTSupports inspection and adjustments. Commands are transmitted to the ABS actuator and electric unit
(control unit) for setting the status suitable for required operation, input/output signals are received from
the ABS actuator and electric unit (control unit) and received data is displayed.
SELF-DIAG RESULTS Displays ABS actuator and electric unit (control unit) self-diagnosis results.
DATA MONITOR Displays ABS actuator and electric unit (control unit) input/output data in real time.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
FUNCTION TEST Conducted by CONSULT-II instead of a technician to determine whether each system is "OK" or "NG".
ECU PART NUMBER ABS actuator and electric unit (control unit) part number can be read.
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3. Turn ignition switch ON.
4. Start engine and drive at approximately 30 km/h (19 MPH) or more for appro INFINITI QX56 2007 Factory Service Manual TROUBLE DIAGNOSIS
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3. Turn ignition switch ON.
4. Start engine and drive at approximately 30 km/h (19 MPH) or more for appro](/manual-img/42/57029/w960_57029-954.png)
TROUBLE DIAGNOSIS
BRC-27
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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 the engine running, touch “START (NISSAN BASED VHCL)”, “ABS”,
“SELF-DIAG RESULTS” in order on the CONSULT-II screen.
CAUTION:
If “START (NISSAN BASED VHCL)” is touched immediately after starting the engine or turning on
the ignition switch, “ABS” might not be displayed in the SELECT SYSTEM screen. In this case,
repeat the operation from step 1.
6. The self-diagnostic results are displayed. (If necessary, the self-diagnostic results can be printed out by
touching “PRINT”.)
• When “NO DTC IS DETECTED” is displayed, check the ABS warning lamp, SLIP indicator lamp and
VDC OFF indicator 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, the ABS warning lamp will not turn off even if the malfunction is repaired.
9. Turn ignition switch OFF to prepare for erasing the memory.
10. Start the engine and touch “START (NISSAN BASED VHCL)”, “ABS”, “SELF-DIAG RESULTS”, “ERASE”
in order on the CONSULT-II screen to erase the error memory.
If “ABS” is not indicated, go to GI-38, "
CONSULT-II Data Link Connector (DLC) Circuit".
CAUTION:
If the error memory is not erased, re-conduct the operation from step 5.
11. For the final inspection, drive at approximately 30 km/h (19 MPH) or more for approximately 1 minute and
confirm that the ABS warning lamp, SLIP indicator lamp, and VDC OFF indicator lamp are off.
Display Item List
Self-diagnostic item Malfunction detecting condition Check system
FR LH SENSOR 1
[C1104]Circuit of front LH wheel sensor is open, shorted or sensor power
voltage is unusual.
BRC-34, "
Wheel Sensor
System Inspection"
(Note 1) RR RH SENSOR 1
[C1101]Circuit of rear RH wheel sensor is open, shorted or sensor power
voltage is unusual.
FR RH SENSOR 1
[C1103]Circuit of front RH wheel sensor is open, shorted or sensor power
voltage is unusual.
RR LH SENSOR 1
[C1102]Circuit of rear LH wheel sensor is open, shorted or sensor power
voltage is unusual.
FR LH SENSOR 2
[C1108]ABS actuator and electric unit (control unit) cannot identify sensor
pulses, because of large gap between wheel sensor and sensor
rotor.
RR RH SENSOR 2
[C1105]ABS actuator and electric unit (control unit) cannot identify sensor
pulses, because of large gap between wheel sensor and sensor
rotor.
FR RH SENSOR 2
[C1107]ABS actuator and electric unit (control unit) cannot identify sensor
pulses, because of large gap between wheel sensor and sensor
rotor.
RR LH SENSOR 2
[C1106]ABS actuator and electric unit (control unit) cannot identify sensor
pulses, because of large gap between wheel sensor and sensor
rotor.
ABS SENSOR
[ C 111 5 ]Wheel sensor input is abnormal.
STOP LAMP SW
[ C 111 6 ]Stop lamp switch or circuit malfunction.BRC-40, "
Stop Lamp
Switch System Inspec-
tion"
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< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
DECEL G SEN SET
[C1160]ABS decel sensor adjustment is incomplete.BRC-49, "Inspection for
Self-Diagnosis Result
"DECEL G SEN SET""
ST ANG INFINITI QX56 2007 Factory Service Manual BRC-28
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
DECEL G SEN SET
[C1160]ABS decel sensor adjustment is incomplete.BRC-49, "Inspection for
Self-Diagnosis Result
"DECEL G SEN SET""
ST ANG](/manual-img/42/57029/w960_57029-955.png)
BRC-28
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
DECEL G SEN SET
[C1160]ABS decel sensor adjustment is incomplete.BRC-49, "Inspection for
Self-Diagnosis Result
"DECEL G SEN SET""
ST ANGL SEN SAFE
[C1163]When steering angle sensor is in safe mode.BRC-47, "Steering Angle
Sensor Safe Mode In-
spection"
ST ANG SEN CIRCUIT
[C1143]Neutral position of steering angle sensor is dislocated, or steering
angle sensor is malfunctioning.BRC-36, "Steering Angle
Sensor System"
YAW RATE SENSOR
[C1145]Yaw rate sensor has generated an error, or yaw rate sensor signal
line is open or shorted.BRC-37, "Yaw Rate/
Side/Decel G Sensor
System Inspection"
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-38, "
Solenoid and
VDC Change-Over Valve
System Inspection"
FR LH OUT ABS SOL
[C1121]Circuit of front LH OUT ABS solenoid is open or shorted, or control
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 control
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 control
line is open or shorted to power supply or ground.
CV1
[C1164]Front side VDC switch-over solenoid valve (cut valve) 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) 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) is open
or shorted, or control line is open or shorted to power supply or
ground.
SV2
[C1167]Rear side VDC switch-over solenoid valve (suction valve) is open
or shorted, or control line is open or shorted to power supply or
ground.
PUMP MOTOR
[ C 1111 ]During actuator motor operation with ON, when actuator motor
turns OFF or when control line for actuator motor relay is open.BRC-39, "
Actuator Mo-
tor, Motor Relay, and Cir-
cuit Inspection"During actuator motor operation with OFF, when actuator motor
turns ON or when control line for relay is shorted to ground.
BATTERY VOLTAGE
[ABNORMAL]
[C1109]ABS actuator and electric unit (control unit) power voltage is too
low.BRC-41, "
ABS/TCS/VDC
Control Unit Power and
Ground Systems Inspec-
tion"
ST ANG SEN SIGNAL
[C1144]Neutral position correction of steering angle sensor is not finished.BRC-48, "Inspection for
Self-Diagnosis Result
"ST ANG SEN SIGNAL""
ST ANG SEN COM CIR
[C1156]CAN communication line or steering angle sensor has generated
an error.BRC-36, "Steering Angle
Sensor System"
G-SENSOR
[ C 111 3 ]Longitudinal G-sensor is malfunctioning, or signal line of longitu-
dinal G-sensor is open or shorted.BRC-37, "Yaw Rate/
Side/Decel G Sensor
System Inspection"
Self-diagnostic item Malfunction detecting condition Check system
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Note 1: If wheel sensor 2 for each wheel is indicated, check ABS actuator and electric unit (control unit INFINITI QX56 2007 Factory Service Manual TROUBLE DIAGNOSIS
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Note 1: If wheel sensor 2 for each wheel is indicated, check ABS actuator and electric unit (control unit](/manual-img/42/57029/w960_57029-956.png)
TROUBLE DIAGNOSIS
BRC-29
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Note 1: If wheel sensor 2 for each wheel is indicated, check ABS actuator and electric unit (control unit) power supply voltage in addition
to wheel sensor circuit check.
Note 2: If multiple malfunctions are detected including CAN communication line [U1000], perform diagnosis for CAN communication line
first.
DATA MONITOR
Display Item List
CONTROLLER FAILURE
[ C 111 0 ]Internal malfunction of ABS actuator and electric unit (control
unit).BRC-35, "ABS/TCS/VDC
Control Unit Inspection"
CAN COMM CIRCUIT
[U1000]• CAN communication line is open or shorted.
• ABS actuator and electric unit (control unit) internal malfunction
• Battery voltage for ECM is suddenly interrupted for approxi-
mately 0.5 second or more.LAN-7 (Note 2)
SIDE G-SEN CIRCUIT
[C1146]Lateral G-sensor is malfunctioning, or signal line of lateral G-sen-
sor is open or shorted.BRC-37, "
Yaw Rate/
Side/Decel G Sensor
System Inspection"
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-42, "Brake Fluid
Level Switch System In-
spection"
ENGINE SIGNAL 1
[C1130]Based on the signal from ECM, ABS actuator and electric unit
(control unit) judges that engine fuel cut system is malfunctioning.
BRC-35, "
Engine System
Inspection"
ENGINE SIGNAL 2
[C1131]Based on the signal from ECM, ABS actuator and electric unit
(control unit) judges that engine fuel cut system is malfunctioning.
ENGINE SIGNAL 3
[C1132]Based on the signal from ECM, ABS actuator and electric unit
(control unit) judges that engine fuel cut system is malfunctioning.
ENGINE SIGNAL 4
[C1133]Based on the signal from ECM, ABS actuator and electric unit
(control unit) judges that engine fuel cut system is malfunctioning.
ENGINE SIGNAL 6
[C1136]Based on the signal from ECM, ABS actuator and electric unit
(control unit) judges that engine fuel cut system is malfunctioning.
ACTUATOR RLY
[C1140]ABS actuator relay or circuit malfunction.BRC-39, "
Actuator Mo-
tor, Motor Relay, and Cir-
cuit Inspection"
PRESS SEN CIRCUIT
[C1142]ABS pressure sensor circuit malfunction.BRC-45, "Pressure Sen-
sor System Inspection"
VARIANT CODING
[C1170]V coding is not malfunctioning.BRC-35, "ABS/TCS/VDC
Control Unit Inspection"
ABS ACTIVE BOOSTER SV NG
[C1178]Active booster solenoid is malfunctioning, or signal line of active
booster servo is open or shorted.BRC-43, "Active Booster
System Inspection"
ABS DELTA S SEN NG
[C1179]Delta stroke sensor malfunctioning, or signal line of delta stroke
sensor is open or shorted.BRC-44, "Delta Stroke
Sensor System Inspec-
tion"
ABS ACTIVE BOOSTER RE-
SPONSE NG
[C1181]Active booster response is malfunctioning, or signal line of active
booster response is open or shorted.BRC-43, "Active Booster
System Inspection"
ABS BRAKE RELEASE SW NG
[C1184]Brake release switch is malfunctioning, or signal line of brake re-
lease switch is open or shorted.BRC-43, "Active Booster
System Inspection"
ABS ACC CU INTERNAL NG
[C1185]ICC control unit internal malfunction.BRC-48, "ICC System In-
spection"
ABS BRAKE BOOSTER DEFECT
[C1189]Brake booster is defective or malfunctioning.BRC-43, "Active Booster
System Inspection"
Self-diagnostic item Malfunction detecting condition Check system
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TROUBLE DIAGNOSIS
Item
(Unit)Data monitor item selection
Remarks
ECU INPUT
SIGNALSMAIN
SIGNALSSELECTION
FROM MENU
GEAR×××Gear position judged by PNP swi INFINITI QX56 2007 Factory Service Manual BRC-30
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TROUBLE DIAGNOSIS
Item
(Unit)Data monitor item selection
Remarks
ECU INPUT
SIGNALSMAIN
SIGNALSSELECTION
FROM MENU
GEAR×××Gear position judged by PNP swi](/manual-img/42/57029/w960_57029-957.png)
BRC-30
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Item
(Unit)Data monitor item selection
Remarks
ECU INPUT
SIGNALSMAIN
SIGNALSSELECTION
FROM MENU
GEAR×××Gear position judged by PNP switch
signal 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.
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 – –×Shift position judged by PNP switch
signal.
P POSI SIG – –×Shift position 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.
DECEL G-SEN
(d/s)×××Longitudinal acceleration detected
by decel G-sensor 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.
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RR LH IN SOL
(ON/OFF)–××Rear LH IN ABS solenoid (ON/OFF)
status is displayed.
RR LH OUT SOL
(ON/OFF) INFINITI QX56 2007 Factory Service Manual TROUBLE DIAGNOSIS
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RR LH IN SOL
(ON/OFF)–××Rear LH IN ABS solenoid (ON/OFF)
status is displayed.
RR LH OUT SOL
(ON/OFF)](/manual-img/42/57029/w960_57029-958.png)
TROUBLE DIAGNOSIS
BRC-31
< SERVICE INFORMATION >[VDC/TCS/ABS]
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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) (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 – –×Brake warning lamp (ON/OFF) sta-
tus is displayed.
SLCT LVR POSI×××Shift position judged by PNP switch
signal.
R POSI SIG – –×Shift position judged by PNP switch
signal.
4WD FAIL REQ – –×The state of 4WD controller is dis-
played by CAN communication sig-
nal.
2WD/4WD – –×It recognizes on software whether it
is 2WD and whether it is in 4WD
state. Item
(Unit)Data monitor item selection
Remarks
ECU INPUT
SIGNALSMAIN
SIGNALSSELECTION
FROM MENU
Page 960 of 3061
![INFINITI QX56 2007 Factory Service Manual BRC-32
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
×: Applicable
–: Not applicable
ACTIVE TEST
CAUTION:
• Do not perform active test while driving.
• Make sure to completely bleed ai INFINITI QX56 2007 Factory Service Manual BRC-32
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
×: Applicable
–: Not applicable
ACTIVE TEST
CAUTION:
• Do not perform active test while driving.
• Make sure to completely bleed ai](/manual-img/42/57029/w960_57029-959.png)
BRC-32
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
×: Applicable
–: Not applicable
ACTIVE TEST
CAUTION:
• Do not perform active test while driving.
• Make sure to completely bleed air from the brake system.
• The ABS and brake (EBD) warning lamps turn on during the active test.
Solenoid Valve Operation Chart
BST OPER SIG – –×Active booster operation (ON/OFF)
status is displayed.
PRESS SENSOR×–×Brake pressure detected by pres-
sure sensor is displayed.
CRANKING SIG – –×The input state of the key SW
START position signal is displayed.
PRESS SEN 2 – –×Brake pressure detected by pres-
sure sensor is displayed.
DELTA S SEN – –×The amount of stroke sensor move-
ments in the active booster detected
by DELTA S SEN is displayed.
RELEASE SW NO – –×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 – –×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 – –×OHB fail status is displayed.
HBA FAIL – –×HBA fail status is displayed.
OHB SIG – –×OHB operation (ON/OFF) status is
displayed.
HBA SIG – –×HBA operation (ON/OFF) status is
displayed.
PRES CTRL ACC – –×Pressure control state (ON/OFF) is
displayed. It is applied only to an
ICC vehicle.
PRES FAIL ACC – –×Pressure control fail state (ON/OFF)
is displayed. It is applied only to an
ICC vehicle.
STP OFF RLY – –×Stop lamp relay signal (ON/OFF)
status is displayed. Item
(Unit)Data monitor item selection
Remarks
ECU INPUT
SIGNALSMAIN
SIGNALSSELECTION
FROM MENU
OperationABS solenoid valve ABS solenoid valve (ACT)
UP KEEP DOWN UPACTUA-
TOR UPACTUA-
TOR KEEP
FR RH SOL
FR RH ABS SOLE-
NOID (ACT)FR RH IN SOL OFF ON ON OFF OFF OFF
FR RH OUT SOL OFF OFF ON* OFF OFF OFF