Infiniti G37 Coupe. Manual - part 277

BRC-82

< ECU DIAGNOSIS >

[VDC/TCS/ABS]

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

NOTE:

• 1: Confirm tire pressure is normal.

• 2: A brief moment of On/Off condition occurs every 20 seconds after ignition switch turned ON. This is not malfunction because it is an

operation for checking.

• 3: On and off timing for warning lamp and indicator lamp.

- ABS warning lamp: Refer to 

BRC-75, "Description"

.

- Brake warning lamp: Refer to 

BRC-76, "Description"

.

- VDC OFF indicator lamp: Refer to 

BRC-77, "Description"

.

- SLIP indicator lamp: Refer to 

BRC-78, "Description"

.

CRANKING SIG

Crank operation

Crank is active

On

Crank is inactive

Off

USV [FL-RR]
(Note 2)

VDC switch-over valve

When actuator (switch-over valve) is ac-
tive (“ACTIVE TEST” with CONSULT-III) 
or actuator relay is inactive (when in fail-
safe mode)

On

When actuator (switch-over valve) is not 
active and actuator relay is active (igni-
tion switch ON)

Off

USV [FR-RL]
(Note 2)

VDC switch-over valve

When actuator (switch-over valve) is ac-
tive (“ACTIVE TEST” with CONSULT-III) 
or actuator relay is inactive (when in fail-
safe mode)

On

When actuator (switch-over valve) is not 
active and actuator relay is active (igni-
tion switch ON)

Off

HSV [FL-RR]
(Note 2)

VDC switch-over valve

When actuator (switch-over valve) is ac-
tive (“ACTIVE TEST” with CONSULT-III) 
or actuator relay is inactive (when in fail-
safe mode)

On

When actuator (switch-over valve) is not 
active and actuator relay is active (igni-
tion switch ON)

Off

HSV [FR-RL]
(Note 2)

VDC switch-over valve

When actuator (switch-over valve) is ac-
tive (“ACTIVE TEST” with CONSULT-III) 
or actuator relay is inactive (when in fail-
safe mode)

On

When actuator (switch-over valve) is not 
active and actuator relay is active (igni-
tion switch ON)

Off

V/R OUTPUT
(Note 2)

Solenoid valve relay activated

When the solenoid valve relay is active 
(When ignition switch OFF)

On

When the solenoid valve relay is not ac-
tive (in the fail-safe mode)

Off

M/R OUTPUT

Actuator motor and motor relay activated

When the actuator motor and motor relay 
are active
(“ACTIVE TEST” with CONSULT-III)

On

When the actuator motor and motor relay 
are inactive

Off

 Monitor item

Display content

Data monitor

Condition

Reference value in 

normal operation

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

BRC-83

< ECU DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

Wiring Diagram - BRAKE CONTROL SYSTEM -

INFOID:0000000001635145

JCFWA0068GB

BRC-84

< ECU DIAGNOSIS >

[VDC/TCS/ABS]

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

JCFWA0069GB

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

BRC-85

< ECU DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

JCFWA0070GB