Infiniti G35 (V35). Manual - part 247

TROUBLE DIAGNOSIS FOR SYSTEM

BRC-49

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

2. 

CHECK CONNECTOR

1.

Turn ignition switch OFF and disconnect VDC/TCS/ABS control unit connector. Then reconnect it
securely.

2.

Perform self-diagnosis.

Do any self-diagnosis items appear?

YES

>> GO TO 3.

NO

>> Poor connection. Repair or replace connector.

3. 

CHECK VDC/TCS/ABS CONTROL UNIT POWER SYSTEM (1)

1.

Turn ignition switch OFF and disconnect VDC/TCS/ABS control
unit connector.

2.

Turn ignition switch ON (but do not start engine). Check voltage
between VDC/TCS/ABS control unit harness connector M93
and ground.

OK or NG

OK

>> GO TO 4.

NG

>> GO TO 5.

4. 

CHECK VDC/TCS/ABS CONTROL UNIT GROUND CIRCUIT

Turn ignition switch OFF and check VDC/TCS/ABS control unit
ground circuit.

OK or NG

OK

>> Perform VDC/TCS/ABS control unit self-diagnosis

again.

NG

>> Poor installation of VDC/TCS/ABS control unit, or har-

ness malfunction

5. 

CHECK VDC/TCS/ABS CONTROL UNIT POWER SYSTEM (2)

1.

Check fuse 10 A.

2.

Check continuity between battery positive terminal and VDC/
TCS/ABS control unit harness connector M93.

OK or NG

OK

>> Check for non-standard conditions in battery (terminal

looseness, low voltage, etc.) And alternator.

NG

>>

●

Replace 10 A fuse.

●

Open or short in harness.

VDC/TCS/ABS control unit

Ground

Voltage

1

—

Battery voltage (Approx. 12V)

SFIA1378E

VDC/TCS/ABS control unit

Ground

Continuity

28, 29

—

Yes

SFIA1374E

VDC/TCS/ABS control unit

Battery positive terminal

Continuity

1

—

Yes

SFIA1380E

BRC-50

[VDC/TCS/ABS]

TROUBLE DIAGNOSIS FOR SYSTEM

When “SHIFT POSITION ERROR” Appears in Self-Diagnostic results Display (A/
T Models)

NFS0007C

INSPECTION PROCEDURE

1. 

CHECK SELF-DIAGNOSTIC RESULTS 

Check the self-diagnostic results.

Is above displayed in the self-diagnosis item?

YES

>> GO TO 2.

NO

>> INSPECTION END

2. 

CHECK DATA MONITOR 

1.

Connect CONSULT-II and CONSULT-II CONVERTER to data link connector. Start engine.

2.

In “DATA MONITOR” select “MAIN SIGNALS” and then check select lever position.

OK or NG

OK

>> Perform VDC/TCS/ABS control unit self-diagnosis again.

NG

>> GO TO 3.

3. 

CHECK A/T PARK/NEUTRAL POSITION SWITCH

Perform the A/T park/neutral position switch inspection. Refer to 

AT-106, "DTC P0705 PARK/NEUTRAL POSI-

TION SWITCH"

 .

Do any self-diagnosis items appear?

YES

>> Repair the indicated items and perform VDC/TCS/ABS control unit self-diagnosis again.

NO

>> Perform VDC/TCS/ABS control unit self-diagnosis again.

VDC/TCS/ABS Control Unit 2

NFS0007D

INSPECTION PROCEDURE

1. 

CHECK SELF-DIAGNOSTIC RESULTS 

Check the self-diagnostic results.

When any item other than “EMERGENCY BRAKE” is indicated in self-diagnosis display, follow the instructions
below.

CAUTION:

“EMERGENCY BRAKE” is displayed when a malfunction is detected in VDC/TCS/ABS control unit
itself. If this display item appears, replace VDC/TCS/ABS control unit.

Is above displayed in the self-diagnosis item?

YES

>> Replace VDC/TCS/ABS control unit, and perform self-diagnosis again.

NO

>> INSPECTION END

Self-diagnostic results

SHIFT POSITION ERROR

Select lever position

SLCT LVR POSI

(data monitor)

P position

P

R position

R

D position

D

Self-diagnostic results

EMERGENCY BRAKE

TROUBLE DIAGNOSIS FOR SYSTEM

BRC-51

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

Brake Fluid Level Switch System

NFS0007E

INSPECTION PROCEDURE

1. 

CHECK SELF-DIAGNOSTIC RESULTS

Check the self-diagnostic results.

Is above displayed in the self-diagnosis item?

YES

>> Check pad for wear. Check brake fluid for leakage.

NO

>> GO TO 2.

2. 

CHECK CONNECTOR

1.

Turn ignition switch OFF and disconnect brake fluid level switch connector and VDC/TCS/ABS control
unit connector.

2.

Reconnect connectors securely, then perform VDC/TCS/ABS control unit self-diagnosis again.

Does anything appear on self-diagnostic results display?

YES

>> GO TO 3.

NO

>> Poor connector connections. Repair or replace connectors.

3. 

CHECK HARNESS BETWEEN BRAKE FLUID LEVEL SENSOR AND VDC/TCS/ABS CONTROL UNIT

1.

Turn ignition switch OFF and disconnect brake fluid level switch
connector and VDC/TCS/ABS control unit connector.

2.

Check continuity between brake fluid level switch harness con-
nector E44 and VDC/TCS/ABS control unit harness connector
M93.

OK or NG

OK

>> Connect connectors and perform a VDC/TCS/ABS con-

trol unit self-diagnosis.

NG

>> If the open or short in harness, repair or replace har-

ness.

RAS Control Unit System (With RAS)

NFS000IM

INSPECTION PROCEDURE

1. 

CHECK SELF-DIAGNOSTIC RESULTS

Check self-diagnosis results.

Is above displayed on the self-diagnosis display?

YES

>> GO TO 2.

NO

>> INSPECTION END.

Self-diagnostic results

BR FLUID LEVEL LOW

VDC/TCS/ABS control unit

Brake fluid level switch

Continuity

40

1

Yes

Ground

No

Ground 2

Yes

SFIA2490E

Self-diagnosis results

RAS CIRCUIT

BRC-52

[VDC/TCS/ABS]

TROUBLE DIAGNOSIS FOR SYSTEM

2. 

CHECK RAS CONTROL UNIT CIRCUIT

1.

Perform RAS control unit self-diagnosis. Repair or replace items indicated, then perform RAS control unit
self-diagnosis again. Refer to 

STC-23, "Self-Diagnosis"

 .

2.

Perform VDC/TCS/ABS control unit self diagnosis.

OK or NG

OK

>> INSPECTION END

NG

>>

●

Repair or replace malfunctioning components.

●

Perform the self-diagnosis, and make sure that the result shows 

″

NO DTC IS DETECTED

″

.

CAN Communication Circuit

NFS0007F

INSPECTION PROCEDURE

1. 

CHECK CONNECTOR 

1.

Turn ignition switch OFF and disconnect VDC/TCS/ABS control unit connector and steering angle sensor
connector. Check terminal for deformation, disconnection, looseness, and so on. If any malfunction is
found, repair or replace terminal.

2.

Securely reconnect connectors and perform self-diagnosis.

Is above displayed in the self-diagnosis item?

YES

>> Print out self-diagnostic results and go to 

LAN-47, "CAN System Specification Chart"

 .

NO

>> Connector terminal connection is loose, damaged, open or shorted.

Component Inspection

NFS0007G

VDC OFF SWITCH

●

Turn ignition switch OFF and disconnect VDC OFF switch con-
nector. Check continuity between terminal 1 and terminal 2.

ABS MOTOR RELAY AND ACTUATOR RELAY

●

Turn ignition switch OFF and disconnect the VDC relay box con-
nector E47, E48, E222. 

●

Apply a voltage of 12V between the ABS motor relay terminal 8
and the actuator relay terminal 7 and then check the continuity
between the following terminals.

Self-diagnostic results

CAN COMM CIRCUIT

ST ANG SEN COM CIR

1 - 2:

Pressing switch will establish continuity, releasing 
it will break continuity.

PFIA0307E

ABS motor relay

Between terminal 4 to 10

Continuity should exist.

Actuator relay

Between terminal 9 to 16

Continuity should exist.

SFIA1384E