Infiniti M45 (Y34). Manual - part 272

TROUBLE DIAGNOSIS

BRC-31

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

×

: Applicable

–: Not applicable

ACTIVE TEST

CAUTION:

●

Do not perform active test while driving the vehicle.

●

Make sure to completely bleed air from brake system.

●

Active test cannot be performed when ABS warning lamp is on.

Operation Procedure

1.

Connect CONSULT-II and CONSULT-II CONVERTER to data link connector and start the engine.

2.

Touch 

″

START

″

 on the display.

OFF  SW (ON/OFF)

×

–

×

VDC OFF switch (ON/OFF) sta-
tus is displayed.

ABS WARN LAMP (ON/OFF)

–

×

×

ABS warning lamp (ON/OFF) sta-
tus is displayed.

EV SIGNAL FL  (ON/OFF)

–

×

×

Front LH IN ABS solenoid (ON/
OFF) status is displayed.

AV SIGNAL FL (ON/OFF)

–

×

×

Front LH OUT ABS solenoid (ON/
OFF) status is displayed.

EV SIGNAL RR (ON/OFF)

–

×

×

Rear RH IN ABS solenoid (ON/
OFF) status is displayed.

AV SIGNAL RR (ON/OFF)

–

×

×

Rear RH OUT ABS solenoid (ON/
OFF) status is displayed.

EV SIGNAL FR (ON/OFF)

–

×

×

Front RH IN ABS solenoid (ON/
OFF) status is displayed.

AV SIGNAL FR (ON/OFF)

–

×

×

Front RH OUT ABS solenoid (ON/
OFF) status is displayed.

EV SIGNAL RL (ON/OFF)

–

×

×

Rear LH IN ABS solenoid (ON/
OFF) status is displayed.

AV SIGNAL RL (ON/OFF)

–

×

×

Rear LH OUT ABS solenoid (ON/
OFF) status is displayed.

VDC OFF LAMP (ON/OFF)

–

×

×

OFF Lamp (ON/OFF) status is dis-
played.

USV SIGNAL P [FL-RR] (ON/OFF)

–

×

×

Primary-side USV solenoid valve 
(ON/OFF) status is displayed.

USV SIGNAL S [FR-RL] (ON/OFF)

–

×

×

Secondary-side USV solenoid 
valve (ON/OFF) status is dis-
played.

MAV SIGNAL P [FL-RR] (ON/OFF)

–

×

×

Primary-side HSV solenoid valve 
(ON/OFF) status is displayed.

MAV SIGNAL S [FR-RL] (ON/OFF)

–

×

×

Secondary-side HSV solenoid 
valve (ON/OFF) status is dis-
played.

M/R OUTPUT (ON/OFF)

–

×

×

Front motor relay activation signal 
(ON/OFF) status is displayed.

Item (Unit)

Monitor item selection

Remarks

ECU INPUT 

SIGNALS

MAIN SIGNALS

 SELECTION 

FROM MENU

BRC-32

[VDC/TCS/ABS]

TROUBLE DIAGNOSIS

3.

Touch 

″

VDC

″

 and 

″

ACTIVE TEST

″

.

4.

Test item selection screen is displayed.

5.

Touch necessary test item.

6.

Touch 

″

START

″

 with 

″

MAIN SIGNALS

″

 line inverted.

7.

Active test screen is displayed.

NOTE:

●

When the active test is conducted while depressing the pedal, the pedal depression amount will
change, but this is normal.

●

Approximately 10 seconds after the operation is begun, “TEST STOP” will be displayed.

●

To conduct a retest after “TEST STOP” is displayed, touch “BACK” and conduct the test from the step 6.

SFIA0799E

SFIA2436E

SFIA0801E

TROUBLE DIAGNOSIS

BRC-33

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

Test Item

SOLENOID VALVE

1.

To perform active test of ABS functions, select major items for
each test item. To perform active test of VDC/TCS functions,
select item menu for each test item.

2.

For ABS solenoid valve, touch “UP”, “KEEP”, and “DOWN”. For
ABS solenoid valve (ACT), touch “UP,” “ACT UP,” and “ACT
KEEP”. Use screen monitor to make sure solenoid valve oper-
ates as shown in Solenoid Valve Operation Chart. Refer to
“Solenoid Valve Operation Chart”.

*: ON for 1 to 2 seconds after the touch, and then OFF

VDC OFF LAMP

●

Touch “ON” and “OFF” on the screen. Make sure that VDC
OFF lamp operates as shown in table below.

NOTE:
If “OFF” is touched on screen during active test, VDC OFF
lamp, SLIP lamp, and ABS warning lamp all turn on for a
moment. This is normal.

SFIA0802E

OPERATION

 SOLENOID VALVE

SOLENOID VALVE (ACT)

UP

KEEP

DOWN

UP

ACT UP

ACT KEEP

FR  RH 
ABS SOLENOID

EV SIGNAL FR (IN)

OFF

ON

ON

OFF

OFF

OFF

AV SIGNAL FR (OUT)

OFF

OFF

ON*

OFF

OFF

OFF

USV SIGNAL S 

OFF

OFF

OFF

OFF

ON

ON

MAV SIGNAL S 

OFF

OFF

OFF

OFF

ON*

OFF

FR  LH 
ABS SOLENOID

EV SIGNAL FL (IN)

OFF

ON

ON

OFF

OFF

OFF

AV SIGNAL FL (OUT)

OFF

OFF

ON*

OFF

OFF

OFF

USV SIGNAL S 

OFF

OFF

OFF

OFF

ON

ON

MAV SIGNAL S 

OFF

OFF

OFF

OFF

ON*

OFF

RR  RH 
ABS SOLENOID

EV SIGNAL RR (IN)

OFF

ON

ON

OFF

OFF

OFF

AV SIGNAL RR (OUT)

OFF

OFF

ON*

OFF

OFF

OFF

USV SIGNAL P 

OFF

OFF

OFF

OFF

ON

ON

MAV SIGNAL P 

OFF

OFF

OFF

OFF

ON*

OFF

RR LH 
ABS SOLENOID

EV SIGNAL RL (IN)

OFF

ON

ON

OFF

OFF

OFF

AV SIGNAL RL (OUT)

OFF

OFF

ON*

OFF

OFF

OFF

USV SIGNAL P 

OFF

OFF

OFF

OFF

ON

ON

MAV SIGNAL P 

OFF

OFF

OFF

OFF

ON*

OFF

Operation

ON

OFF

VDC OFF  LAMP

ON

OFF

SFIA1925E

BRC-34

[VDC/TCS/ABS]

TROUBLE DIAGNOSIS

ABS MOTOR

●

Touch “ON” and “OFF” on the screen. Make sure that motor
relay operates as shown in table below.

SLIP LAMP

●

Touch “ON” and “OFF” on the screen. Make sure that SLIP lamp
operates as shown in table below.

NOTE:
If “OFF” is touched on screen during active test, VDC  OFF
lamp, SLIP lamp, and ABS warning lamp all turn on for a
moment. This is normal.

ABS WARNING LAMP

●

Touch “ON” and “OFF” on the screen. Make sure that ABS warn-
ing lamp operates as shown in table below.

NOTE:
If “OFF” is touched on screen during active test, VDC  OFF
lamp, SLIP lamp, and ABS warning lamp all turn on for a
moment. This is normal.

ASCD OUTPUT

●

Touch “ON” and “OFF” on the screen. Make sure that ASCD out-
put is as shown in table below.

Operation

ON

OFF

M/R OUTPUT

ON

OFF

SFIA0804E

Operation

ON

OFF

SLIP LAMP

ON

OFF

SFIA0594E

Operation

ON

OFF

ABS WARN LAMP

ON

OFF

SFIA0595E

Operation

ON

OFF

ASCD SIGNAL

ON

OFF

SFIA2214E