Infiniti G35 (V35) Sedan. Manual - part 238

BRC-26

< FUNCTION DIAGNOSIS >

[VDC/TCS/ABS]

DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL 

UNIT)]

DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]

CONSULT-III Function (ABS)

INFOID:0000000000958517

FUNCTION

CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.

SELF-DIAG RESULTS MODE

Operation Procedure

1.

Before performing the self-diagnosis, start engine and drive vehicle at 30 km/h (19 MPH) or more for
approximately 1 minute.

How to Erase Self-diagnosis Results

1.

After erasing DTC memory, start engine and drive vehicle at 30 km/h (19 MPH) or more for approximately
1 minute as the final inspection, and make sure that the ABS warning lamp, VDC OFF indicator lamp,
SLIP indicator lamp and brake warning lamp turn OFF.

CAUTION:

If memory cannot be erased, perform applicably diagnosis.
NOTE:
• When the wheel sensor malfunctions, after inspecting the wheel sensor system, the ABS warning lamp,

VDC OFF indicator lamp, SLIP indicator lamp and brake warning lamp will not turn OFF even when the
system is normal unless the vehicle is driving at approximately 30 km/h (19 MPH) or more for approxi-
mately 1 minute.

• Brake warning lamp will turn ON in case of parking brake operation (when switch is ON) or of brake fluid

level switch operation (when brake fluid is insufficient).

• VDC OFF switch should not stay “ON” position.

Display Item List

Refer to 

BRC-87, "DTC No. Index"

.

DATA MONITOR MODE

Display Item List

×

: Applicable 

❏

: Optional item

Diagnostic test mode

Function

Work support

This mode enables a technician to adjust some devices faster and more accurately by following 
the indications on CONSULT-III.

Self-diagnostic results

Self-diagnostic results can be read and erased quickly.

Data monitor

Input/Output data in the ABS actuator and electric unit (control unit) can be read.

Active test

Diagnostic test mode is which CONSULT-III drives some actuators apart from the ABS actuator 
and electric unit (control unit) and also shifts some parameters in a specified range.

ECU part number

ABS actuator and electric unit (control unit) part number can be read.

CAN diagnostic support monitor

The results of transmit/receive diagnosis of CAN communication can be read.

Monitor item (Unit)

SELECT MONITOR ITEM

Remarks

ECU INPUT SIG-

NALS

MAIN SIGNLAS

FR LH SENSOR
[km/h (MPH)]

×

×

Wheel speed

FR RH SENSOR
[km/h (MPH)]

×

×

RR LH SENSOR
[km/h (MPH)]

×

×

RR RH SENSOR
[km/h (MPH)]

×

×

DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL 

UNIT)]

BRC-27

< FUNCTION DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

STOP LAMP SW
(ON/OFF)

×

×

Stop lamp switch signal status

BATTERY VOLT
(V)

×

×

Battery voltage supplied to the ABS actuator and electric 
unit (control unit)

GEAR

×

×

Gear position determined by TCM

SLCT LVR POSI

×

×

A/T selector lever position

OFF SW
(ON/OFF)

×

×

VDC OFF switch

YAW RATE SEN
(d/s)

×

×

Yaw rate detected by yaw rate/side G sensor

4WD MODE MON

×

×

AWD activated (only AWD models)

ACCEL POS SIG
(%)

×

❏

Throttle actuator opening/closing is displayed (Linked with 
accelerator pedal)

SIDE G-SENSOR

(m/s

2

)

×

❏

Transverse G detected by yaw rate/side G sensor

STR ANGLE SIG
(

°

)

×

❏

Steering angle detected by steering angle sensor

PRESS SENSOR
(bar)

×

❏

Brake fluid pressure detected by pressure sensor

ENGINE RPM
[tr/min (rpm)]

×

❏

Engine speed

FLUID LEV SW
(ON/OFF)

×

❏

Brake fluid level switch signal status

PARK BRAKE SW
(ON/OFF)

×

❏

Parking brake switch signal status

FR RH IN SOL
(ON/OFF)

❏

×

Operation status of each solenoid valve

FR RH OUT SOL
(ON/OFF)

❏

×

FR LH IN SOL
(ON/OFF)

❏

×

FR LH OUT SOL
(ON/OFF)

❏

×

RR RH IN SOL
(ON/OFF)

❏

×

RR RH OUT SOL
(ON/OFF)

❏

×

RR LH IN SOL
(ON/OFF)

❏

×

RR LH OUT SOL
(ON/OFF)

❏

×

MOTOR RELAY
(ON/OFF)

❏

×

Motor and motor relay operation

ACTUATOR RLY
(ON/OFF)

❏

×

Actuator relay operation

ABS WARN LAMP
(ON/OFF)

❏

×

ABS warning lamp

OFF LAMP
(ON/OFF)

❏

×

VDC OFF indicator lamp

Monitor item (Unit)

SELECT MONITOR ITEM

Remarks

ECU INPUT SIG-

NALS

MAIN SIGNLAS

BRC-28

< FUNCTION DIAGNOSIS >

[VDC/TCS/ABS]

DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL 

UNIT)]

ACTIVE TEST MODE

CAUTION:

• Do not perform active test while driving vehicle.
• Make sure to completely bleed air from brake system.
• The active test cannot be performed with the ABS warning lamp, VDC OFF indicator lamp, SLIP indi-

cator lamp and brake warning lamp are on.

• ABS warning lamp, VDC OFF indicator lamp, SLIP indicator lamp and brake warning lamp are on

during active test.

• Erase memory of ICC system after implementing active test.
NOTE:
• When active test is performed while depressing the pedal, the pedal depression amount will change. This is

normal. (Only solenoid valve and ABS motor.)

• “TEST IS STOPPED” is displayed 10 seconds after operation start.

SLIP LAMP
(ON/OFF)

❏

×

SLIP indicator lamp

BST OPER SIG

❏

❏

Not applied but displayed.

EBD SIGNAL
(ON/OFF)

❏

❏

EBD operation

ABS SIGNAL
(ON/OFF)

❏

❏

ABS operation

TCS SIGNAL
(ON/OFF)

❏

❏

TCS operation

VDC SIGNAL
(ON/OFF)

❏

❏

VDC operation

EBD FAIL SIG
(ON/OFF)

❏

❏

EBD fail-safe signal

ABS FAIL SIG
(ON/OFF)

❏

❏

ABS fail-safe signal

TCS FAIL SIG
(ON/OFF)

❏

❏

TCS fail-safe signal

VDC FAIL SIG
(ON/OFF)

❏

❏

VDC fail-safe signal

CRANKING SIG
(ON/OFF)

❏

❏

Crank operation

USV [FR-RL]
(ON/OFF)

❏

❏

VDC switch-over valve

USV [FL-RR]
(ON/OFF)

❏

❏

HSV [FR-RL]
(ON/OFF)

❏

❏

HSV [FL-RR]
(ON/OFF)

❏

❏

V/R OUTPUT
(ON/OFF)

❏

❏

Solenoid valve relay activated

M/R OUTPUT
(ON/OFF)

❏

❏

Actuator motor and motor relay activated

4WD FAIL REQ
(ON/OFF)

❏

❏

AWD control unit fail-safe signal (only AWD models)

SNOW MODE SW
(ON/OFF)

❏

❏

SNOW mode switch

M-MODE SIG
(ON/OFF)

❏

❏

Manual mode activated (only A/T models)

Monitor item (Unit)

SELECT MONITOR ITEM

Remarks

ECU INPUT SIG-

NALS

MAIN SIGNLAS

DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL 

UNIT)]

BRC-29

< FUNCTION DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

• After “TEST IS STOPPED” is displayed, to perform test again, touch BACK and repeat step 3.

Test Item

SOLENOID VALVE

• When performing an active test of the ABS function, select the “MAIN SIGNALS” for each test item. In addi-

tion, when performing an active test of the VDC/TCS function, select the item menu for each test item.

• For ABS solenoid valve, touch “UP”, “KEEP”, and “DOWN” on the display screen. For ABS solenoid valve

(ACT), touch “UP”, “ACT UP”, “ACT KEEP” and confirm that solenoid valves (IN, OUT, USV, HSV) operate
as shown in the table below.

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

NOTE:

A brief moment of ON/OFF condition occurs every 20 seconds after ignition switch turned ON. This is malfunction because it is an oper-
ation for checking.

ABS MOTOR

• Touch “ON” and “OFF” on screen. Make sure motor relay and actuator relay operates as shown in table

below.

NOTE:

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.

Operation

(Note)

ABS solenoid valve

ABS solenoid valve (ACT)

UP

KEEP

DOWN

UP

ACT UP

ACT KEEP

FR RH IN SOL

OFF

ON

ON

OFF

OFF

OFF

FR RH OUT SOL

OFF

OFF

ON*

OFF

OFF

OFF

FR LH IN SOL

OFF

ON

ON

OFF

OFF

OFF

FR LH OUT SOL

OFF

OFF

ON*

OFF

OFF

OFF

RR RH IN SOL

OFF

ON

ON

OFF

OFF

OFF

RR RH OUT SOL

OFF

OFF

ON*

OFF

OFF

OFF

RR LH IN SOL

OFF

ON

ON

OFF

OFF

OFF

RR LH OUT SOL

OFF

OFF

ON*

OFF

OFF

OFF

USV [FR-RL]

OFF

OFF

OFF

OFF

ON

ON

USV [FL-RR]

OFF

OFF

OFF

OFF

ON

ON

HSV [FR-RL]

OFF

OFF

OFF

OFF

ON*

OFF

HSV [FL-RR]

OFF

OFF

OFF

OFF

ON*

OFF

Operation

ON

OFF

MOTOR RELAY

ON

OFF

ACTUATOR RLY (Note)

ON

ON