Infiniti G35 (V35) Sedan. Manual - part 251

BRC-78

< ECU DIAGNOSIS >

[VDC/TCS/ABS]

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

SIDE G-SENSOR

Transverse G detected by side G sensor

Vehicle stopped

Approx. 0 m/s

2

Vehicle turning right

Negative value 

(m/s

2

)

Vehicle turning left

Positive value

(m/s

2

)

STR ANGLE SIG

Steering angle detected by steering angle 
sensor

Straight-ahead

Approx. 0

°

Steering wheel turned

–720 to 720

°

 

4WD MODE MON
(Note 2)

AWD activated

Engine running

AUTO

PRESS SENSOR

Brake fluid pressure detected by pressure 
sensor

With ignition switch turned ON and brake 
pedal released

Approx. 0 bar

With ignition switch turned ON and brake 
pedal depressed

–40 to 300 bar

ENGINE RPM

With engine running

With engine stopped

0 rpm

Engine running

Almost in accor-
dance with tachome-
ter display

FLUID LEV SW

Brake fluid level switch signal status

When brake fluid level switch ON

ON

When brake fluid level switch OFF 

OFF

PARK BRAKE SW

Parking brake switch signal status

Parking brake switch is active

ON

Parking brake switch is inactive

OFF

FR RH IN SOL

Operation status of each solenoid valve 

Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III) or actua-
tor relay is inactive (in fail-safe mode)

ON

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

OFF

FR RH OUT SOL

Operation status of each solenoid valve 

Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III) or actua-
tor relay is inactive (in fail-safe mode)

ON

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

OFF

FR LH IN SOL

Operation status of each solenoid valve 

Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III) or actua-
tor relay is inactive (in fail-safe mode)

ON

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

OFF

FR LH OUT SOL

Operation status of each solenoid valve 

Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III) or actua-
tor relay is inactive (in fail-safe mode)

ON

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

OFF

RR RH IN SOL

Operation status of each solenoid valve 

Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III) or actua-
tor relay is inactive (in fail-safe mode)

ON

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

OFF

 Monitor item

Display content

Data monitor

Condition

Reference value in 

normal operation

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

BRC-79

< ECU DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

RR RH OUT SOL

Operation status of each solenoid valve 

Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III) or actua-
tor relay is inactive (in fail-safe mode)

ON

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

OFF

RR LH IN SOL

Operation status of each solenoid valve 

Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III) or actua-
tor relay is inactive (in fail-safe mode)

ON

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

OFF

RR LH OUT SOL

Operation status of each solenoid valve 

Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III) or actua-
tor relay is inactive (in fail-safe mode)

ON

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

OFF

MOTOR RELAY

Motor and motor relay operation

When the motor relay and motor are op-
erating

ON

When the motor relay and motor are not 
operating

OFF

ACTUATOR RLY
(Note 3)

Actuator relay operation

When the actuator relay is operating

ON

When the actuator relay is not operating

OFF

ABS WARN LAMP

ABS warning lamp
(Note 4)

When ABS warning lamp is ON

ON

When ABS warning lamp is OFF

OFF

OFF LAMP

VDC OFF indicator lamp
(Note 4)

When VDC OFF indicator lamp is ON

ON

When VDC OFF indicator lamp is OFF

OFF

SLIP LAMP

SLIP indicator lamp
(Note 4)

When SLIP indicator lamp is ON

ON

When SLIP indicator lamp is OFF

OFF

SNOW MODE SW

SNOW mode switch

When snow mode switch is ON

ON

When snow mode switch is OFF

OFF

4WD FAIL REQ
(Note 2)

AWD control unit fail-safe signal

When AWD control unit is fail-safe mode

ON

When AWD control unit is normal

OFF

BST OPER SIG

Not applied but displayed

—

OFF

M-MODE SIG

Manual mode activated

When the manual mode is active

ON

When the manual mode is inactive

OFF

EBD SIGNAL

EBD operation

EBD is active

ON

EBD is inactive

OFF

ABS SIGNAL

ABS operation

ABS is active

ON

ABS is inactive

OFF

TCS SIGNAL

TCS operation

TCS is active

ON

TCS is inactive

OFF

VDC SIGNAL

VDC operation

VDC is active

ON

VDC is inactive

OFF

EBD FAIL SIG

EBD fail-safe signal

In EBD fail-safe

ON

EBD is normal

OFF

 Monitor item

Display content

Data monitor

Condition

Reference value in 

normal operation

BRC-80

< ECU DIAGNOSIS >

[VDC/TCS/ABS]

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

NOTE:

• 1: Confirm tire pressure is normal.

• 2: Only AWD models.

• 3: 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.

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

- ABS warning lamp: Refer to 

BRC-73, "Description"

.

ABS FAIL SIG

ABS fail-safe signal

In ABS fail-safe

ON

ABS is normal

OFF

TCS FAIL SIG

TCS fail-safe signal

In TCS fail-safe

ON

TCS is normal

OFF

VDC FAIL SIG

VDC fail-safe signal

In VDC fail-safe

ON

VDC is normal

OFF

CRANKING SIG

Crank operation

Crank is active

ON

Crank is inactive

OFF

USV [FL-RR]
(Note 3)

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 3)

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 3)

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 3)

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 3)

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-81

< ECU DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

- Brake warning lamp: Refer to 

BRC-74, "Description"

.

- VDC OFF indicator lamp: Refer to 

BRC-75, "Description"

.

- SLIP indicator lamp: Refer to 

BRC-76, "Description"

.

TERMINAL LAYOUT

JSFIA0009ZZ