Infiniti FX35, FX50 (S51). Manual - part 269

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

BRC-107

< ECU DIAGNOSIS INFORMATION >

[VDC/TCS/ABS]

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BRC

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ECU DIAGNOSIS INFORMATION

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

Reference Value

INFOID:0000000005234640

VALUES ON THE DIAGNOSIS TOOL

CAUTION:

The display shows the control unit calculation data, so a normal value might be displayed even in the
event the output circuit (harness) is open or short-circuited.

 Monitor item

Display content

Data monitor

Condition

Reference value in 

normal operation

FR LH SENSOR

Wheel speed

Vehicle stopped

0 [km/h (MPH)]

Vehicle running 
(Note 1)

Nearly matches the 

speedometer dis-

play (

±

 10% or less)

FR RH SENSOR

Wheel speed

Vehicle stopped

0 [km/h (MPH)]

Vehicle running 
(Note 1)

Nearly matches the 

speedometer dis-

play (

±

 10% or less)

RR LH SENSOR

Wheel speed

Vehicle stopped

0 [km/h (MPH)]

Vehicle running 
(Note 1)

Nearly matches the 

speedometer dis-

play (

±

 10% or less)

RR RH SENSOR

Wheel speed

Vehicle stopped

0 [km/h (MPH)]

Vehicle running 
(Note 1)

Nearly matches the 

speedometer dis-

play (

±

 10% or less)

STOP LAMP SW

Stop lamp switch signal status

When brake pedal is depressed

On

When brake pedal is not depressed

Off

BATTERY VOLT

Battery voltage supplied to the ABS ac-
tuator and electric unit (control unit)

Ignition switch ON

10 – 16 V

 SLCT LVR POSI

A/T selector lever position

P position
R position
N position
D position

P
R
N
D

YAW RATE SEN

Yaw rate detected by yaw rate/side G 
sensor

Vehicle stopped

Approx. 0 d/s

Vehicle turning right

Negative value

Vehicle turning left

Positive value

ACCEL POS SIG 

Throttle actuator opening/closing is 
displayed (linked with accelerator ped-
al)

Accelerator pedal not depressed
(ignition switch is ON)

0 %

Depress accelerator pedal
(ignition switch is ON)

0 - 100 %

SIDE G-SENSOR

Transverse G detected by side G sen-
sor

Vehicle stopped

Approx. 0 m/s

2

Vehicle turning right

Negative value 

Vehicle turning left

Positive value

STR ANGLE SIG

Steering angle detected by steering an-
gle sensor

Driving straight

±

2.5

°

Turn 90

°

 to right

Approx. +90

°

Turn 90

°

 to left

Approx. –90

°

BRC-108

< ECU DIAGNOSIS INFORMATION >

[VDC/TCS/ABS]

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

PRESS SENSOR

Brake fluid pressure detected by pres-
sure sensor

With ignition switch turned ON and brake 
pedal released

Approx. 0 bar

With ignition switch turned ON and brake 
pedal depressed

Approx. 0 to 300 bar

ENGINE RPM

With engine running

With engine stopped

0 [tr/min (rpm)]

Engine running

Almost in accor-
dance with tachome-
ter display

OFF SW

VDC OFF switch signal status

When VDC OFF switch ON
(VDC OFF indicator lamp ON)

On

When VDC OFF switch OFF
(VDC OFF indicator lamp OFF)

Off

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” in “ABS” with CONSULT-III)

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” in “ABS” with CONSULT-III)

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” in “ABS” with CONSULT-III)

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” in “ABS” with CONSULT-III)

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” in “ABS” with CONSULT-III)

On

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

Off

RR RH OUT SOL

Operation status of each solenoid 
valve 

Actuator (solenoid valve) is active (“AC-
TIVE TEST” in “ABS” with CONSULT-III)

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” in “ABS” with CONSULT-III)

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-109

< ECU DIAGNOSIS INFORMATION >

[VDC/TCS/ABS]

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BRC

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RR LH OUT SOL

Operation status of each solenoid 
valve 

Actuator (solenoid valve) is active (“AC-
TIVE TEST” in “ABS” with CONSULT-III)

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 2)

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 3)

When ABS warning lamp is ON

On

When ABS warning lamp is OFF

Off

OFF LAMP

VDC OFF indicator lamp
(Note 3)

When VDC OFF indicator lamp is ON

On

When VDC OFF indicator lamp is OFF

Off

SLIP LAMP

SLIP indicator lamp
(Note 3)

When SLIP indicator lamp is ON

On

When SLIP indicator lamp is OFF

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

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 2)

VDC switch-over valve

When actuator (switch-over valve) is ac-
tive (“ACTIVE TEST” in “ABS” with CON-
SULT-III)

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” in “ABS” with CON-
SULT-III)

On

When actuator (switch-over 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

BRC-110

< ECU DIAGNOSIS INFORMATION >

[VDC/TCS/ABS]

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

HSV [FL-RR]
(Note 2)

VDC switch-over valve

When actuator (switch-over valve) is ac-
tive (“ACTIVE TEST” in “ABS” with CON-
SULT-III)

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” in “ABS” with CON-
SULT-III)

On

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

Off

BST OPER SIG

Booster operation signal

Booster is active

On

Booster is inactive

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 activat-
ed

When the actuator motor and motor relay 
are active
(“ACTIVE TEST” in “ABS” with CON-
SULT-III)

On

When the actuator motor and motor relay 
are inactive

Off

LDP) APP SEN
(Note 4)

Accelerator pedal position sensor sta-
tus

Accelerator pedal is not depressed (Igni-
tion switch ON)

0 %

Depress accelerator pedal
(Ignition switch ON)

0 - 100 %

LDP) ICC MAIN SW
(Note 4)

ICC main switch

ICC main switch is ON

On

ICC main switch is OFF

Off

LDP) LDP ON SW
(Note 4)

LDP switch

LDP switch is ON

On

LDP switch is OFF

Off

LDP) WIPER SIGNAL
(Note 4)

Front wiper operation

Front wiper is OFF.

Stop

Front wiper stops at fail-safe operation

PRTCT

Front wiper INT is operating.

1low

Front wiper LO is operating.

Low

Front wiper HI is operating.

High

LDP) BRAKE SW
(Note 4)

Brake switch signal status

When brake pedal is not depressed

On

When brake pedal is depressed

Off

LDP) STOP LMP SW
(Note 4)

Stop lamp switch signal status

When brake pedal is depressed

On

When brake pedal is not depressed

Off

LDP) LDW SW
(Note 4)

LDW switch condition

LDW switch is ON
(LDW ON indicator is ON)

On

LDW switch is OFF
(LDW ON indicator is OFF)

Off

LDP) SHIFT POSITION
(Note 4)

Shift position

Shift position is not received

Off

Selector lever position

P/R/N/D

When using manual mode

MM 1st – MM 7th

 Monitor item

Display content

Data monitor

Condition

Reference value in 

normal operation