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-
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
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
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