Infiniti G35 (V35). Manual — part 242

TROUBLE DIAGNOSIS

BRC-29

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

STR ANGLE SIG
(

°

)

×

–

×

Steering angle detected by steering angle sensor is
displayed.

YAW RATE SEN
(d/s)

×

×

×

Yaw rate detected by yaw rate sensor is displayed.

SIDE G- SENSOR

(m/s

2

)

×

–

×

Transverse acceleration detected by side G sensor is
displayed.

PRESS SENSOR
(bar)

×

–

×

Brake fluid pressure detected by pressure sensor is
displayed.

STOP LAMP SW
(ON/OFF)

×

×

×

Stop lamp switch (ON/OFF) condition is displayed.

PARK BRAKE SW
(ON/OFF)

×

–

×

Parking brake switch (ON/OFF) condition is dis-
played.

OFF SW
(ON/OFF)

×

×

×

VDC OFF switch (ON/OFF) condition is displayed.

ABS WARN LAMP
(ON/OFF)

–

×

×

ABS warning lamp (ON/OFF) condition is displayed.

SLIP LAMP
(ON/OFF)

–

×

×

SLIP indicator lamp (ON/OFF) condition is displayed.

FR LH IN SOL
(ON/OFF)

–

×

×

Front LH IN ABS solenoid (ON/OFF) condition is dis-
played.

FR LH OUT SOL
(ON/OFF)

–

×

×

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

RR RH IN SOL
(ON/OFF)

–

×

×

Rear RH IN ABS solenoid (ON/OFF) condition is dis-
played.

RR RH OUT SOL
(ON/OFF)

–

×

×

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

FR RH IN SOL
(ON/OFF)

–

×

×

Front RH IN ABS solenoid (ON/OFF) condition is dis-
played.

FR RH OUT SOL
(ON/OFF)

–

×

×

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

RR LH IN SOL
(ON/OFF)

–

×

×

Rear LH IN ABS solenoid (ON/OFF) condition is dis-
played.

RR LH OUT SOL
(ON/OFF)

–

×

×

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

OFF LAMP
(ON/OFF)

–

×

×

VDC OFF indicator Lamp (ON/OFF) condition is dis-
played.

MOTOR RELAY
(ON/OFF)

–

×

×

ABS motor relay (ON/OFF) condition is displayed.

ACTUATOR RLY
(ON/OFF)

–

×

×

Solenoid valve relay (ON/OFF) condition is displayed.

USV [FL-RR]
(ON/OFF)

–

–

×

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

USV [FR-RL]
(ON/OFF)

–

–

×

Secondary-side USV solenoid valve (ON/OFF) condi-
tion is displayed.

HSV [FL-RR]
(ON/OFF)

–

–

×

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

HSV [FR-RL]
(ON/OFF)

–

–

×

Secondary-side HSV solenoid valve (ON/OFF) condi-
tion is displayed.

V/R OUTPUT
(ON/OFF)

–

–

×

Valve relay operation signal (ON/OFF) condition is
displayed.

Display item

SELECT MONITOR ITEM

Remarks

ECU INPUT

SIGNALS

MAIN SIGNALS

SELECTION

FROM MENU

BRC-30

[VDC/TCS/ABS]

TROUBLE DIAGNOSIS

×

: Applicable

–: Not applicable

Active Test

NFS000L9

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 indicator lamp and SLIP
indicator lamp are on.

OPERATION PROCEDURE

1.

Perform “CONSULT-II Start Procedure”. Refer to

GI-37, "CONSULT-II Start Procedure"

.

2.

Touch “ACTIVE TEST”.

3.

The test item selection screen is displayed.

4.

Touch necessary test item.

5.

With the “MAIN ITEM” display shown in reverse, touch “START”.

6.

The “ACTIVE TEST” screen will be displayed, so conduct the
following test.

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.

M/R OUTPUT
(ON/OFF)

–

–

×

Front motor relay activation signal (ON/OFF) condi-
tion is displayed.

VDC FAIL SIG
(ON/OFF)

–

–

×

VDC fail signal (ON/OFF) condition is displayed.

TCS FAIL SIG
(ON/OFF)

–

–

×

TCS fail signal (ON/OFF) condition is displayed.

ABS FAIL SIG
(ON/OFF)

–

–

×

ABS fail signal (ON/OFF) condition is displayed.

EBD FAIL SIG
(ON/OFF)

–

–

×

EBD fail signal (ON/OFF) condition is displayed.

FLUID LEV SW
(ON/OFF)

×

–

×

Brake fluid level switch (ON/OFF) condition is dis-
played.

CRANKING SIG
(ON/OFF)

–

–

×

Ignition switch (START) switch signal input condition
is displayed.

EBD SIGNAL
(ON/OFF)

–

–

×

EBD operation (ON/OFF) condition is displayed.

ABS SIGNAL
(ON/OFF)

–

–

×

ABS operation (ON/OFF) condition is displayed.

TCS SIGNAL
(ON/OFF)

–

–

×

TCS operation (ON/OFF) condition is displayed.

VDC SIGNAL
(ON/OFF)

–

–

×

VDC operation (ON/OFF) condition is displayed.

Display item

SELECT MONITOR ITEM

Remarks

ECU INPUT

SIGNALS

MAIN SIGNALS

SELECTION

FROM MENU

PFIA0301E

TROUBLE DIAGNOSIS

BRC-31

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

TEST ITEM
Solenoid Valve

CAUTION:

The example shown is for the from right wheel. The procedure for the other wheels is the same as
given below.

●

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.

●

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.

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

ABS Motor

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

SFIA0591E

Operation

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

USV [FR-RL]

OFF

OFF

OFF

OFF

ON

ON

HSV [FR-RL]

OFF

OFF

OFF

OFF

ON*

OFF

Operation

ON

OFF

MOTOR RELAY

ON

OFF

ACTUATOR RLY

ON

ON

SFIA0593E

BRC-32

[VDC/TCS/ABS]

TROUBLE DIAGNOSIS

For Fast and Accurate Diagnosis

NFS0006Z

PRECAUTIONS FOR DIAGNOSIS

●

Before performing diagnosis, always read General Information (GI) to confirm general precautions. Refer
to

GI-3, "PRECAUTIONS"

.

●

If VDC/TCS/ABS control unit, steering angle sensor, steering system parts, suspension system parts, or
tires have been replaced, or if wheel alignment has been adjusted, be sure to adjust neutral position of
steering angle sensor before driving. Refer to

BRC-6, "Adjustment of Steering Angle Sensor Neutral Posi-

tion"

.

●

When replacing VDC/TCS/ABS control unit, be sure label on control unit are the same color.

●

After diagnosis is finished, be sure to erase memory. Refer to

BRC-26, "ERASE MEMORY"

.

●

When checking continuity and voltage between unit, be sure to check for disconnection, looseness, bend,
or collapse of connector terminals. If any malfunction is found, repair or replace connector terminals.

●

For intermittent symptoms, possible cause is malfunction in harness, harness connector, or terminals.
Move harness, harness connector, and terminals to check for poor connections.

●

If a circuit tester is used for the check, be careful not to forcibly extend any connector terminal.

●

To use CONSULT-II to perform self-diagnosis of VDC/TCS/ABS control unit, active tests, or work support,
first stop work, then connect CONSULT-II and select “ABS”.

●

CONSULT-II self-diagnostic results are displayed without regard to occurrence timing. In some cases later
ones (timing value is small) appear on former screen.

●

While self-diagnostic results of CONSULT-II shows malfunction, if CONSULT-II active test is performed,
an engine system error may be indicated. In this case, start engine to resume normal screen.

●

VDC/TCS/ABS system electronically controls brake operation and engine output. The following symptoms
may be caused by normal operations:

Symptom

Symptom description

Result

Motor operation sound

This is sound of motor inside VDC/TCS/ABS actuator. Slight sound may
occur during VDC, TCS, and ABS operation.

Normal

Just after engine starts, the motor operating sound may be heard. This is a
normal condition of the system operation check.

System operation check
sound

When engine starts, slight “click” sound may be heard from engine room.
This is normal and is part of system operation check.

Normal

TCS operation
(SLIP indicator lamp ON)

TCS may activate momentarily if wheel speed changes when driving over
location where friction coefficient varies, when downshifting, or when fully
depressing accelerator pedal.

Normal
Cancel the VDC/TCS
function for the inspec-
tion on a chassis dyna-
mometer.

When checking speed meter etc. With a 2-wheel-drive chassis dynamome-
ter, vehicle speed is not increased by pressing down on the accelerator.

ABS operation
(Longer stopping distance)

On roads with low friction coefficients, such as snowy roads or gravel
roads, vehicles with ABS may require a longer stopping distance. There-
fore, when driving on such roads, avoid overconfidence and keep speed
sufficiently low.

Normal

Insufficient feeling of acceler-
ation

Depending on road conditions, driver may feel that feeling of acceleration
is insufficient. This is because traction control, which controls engine and
brakes to achieve optimal traction, has the highest priority (for safety). As a
result, there may be times when acceleration is slightly less than usual for
the same accelerator pedal operation.

Normal