Infiniti G35 (V35). Manual — part 244
TROUBLE DIAGNOSIS FOR SYSTEM
BRC-37
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
Engine System
NFS00072
INSPECTION PROCEDURE
1.
CHECK SELF-DIAGNOSTIC RESULTS
Check the self-diagnostic results.
Is above displayed on self-diagnosis display?
YES
>> GO TO 2.
NO
>> INSPECTION END
2.
CHECK ENGINE SYSTEM
1.
Perform ECM self-diagnosis. Repair or replace items indicated, then perform ECM self-diagnosis again.
2.
Perform VDC/TCS/ABS control unit self-diagnosis again.
OK or NG
OK
>> INSPECTION END
NG
>> Repair or replace the items indicated. Then perform self-diagnosis again.
VDC/TCS/ABS Control Unit 1
NFS00073
INSPECTION PROCEDURE
1.
CHECK SELF-DIAGNOSTIC RESULTS
Check the self-diagnostic results.
Is above displayed on self-diagnosis display?
YES
>> Repair or replace the items indicated. Then perform self-diagnosis again.
NO
>> Replace VDC/TCS/ABS control unit. Then perform VDC/TCS/ABS control unit self-diagnosis
again.
Self-diagnostic results
ENGINE SIGNAL 1
ENGINE SIGNAL 2
ENGINE SIGNAL 3
ENGINE SIGNAL 4
ENGINE SIGNAL 5
ENGINE SIGNAL 6
Self-diagnostic results
CONTROLLER FAILURE
BRC-38
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM
Pressure Sensor System
NFS00074
INSPECTION PROCEDURE
1.
CHECK SELF-DIAGNOSTIC RESULTS
Check the self-diagnostic results.
Is above displayed on self-diagnosis display?
YES
>> GO TO 2.
NO
>> INSPECTION END
2.
CHECK STOP LAMP SWITCH CONNECTOR
1.
Turn ignition switch OFF and disconnect stop lamp switch connector and VDC/TCS/ABS control unit con-
nector.
2.
Reconnect connectors securely.
3.
Start engine.
4.
Repeat pumping brake pedal carefully several times, then perform self-diagnosis.
Do any self-diagnostic items appear?
YES
>> GO TO 3.
NO
>> Poor connection. Repair or replace connector.
3.
CHECK STOP LAMP SWITCH
1.
Turn ignition switch OFF and disconnect stop lamp switch har-
ness connector.
2.
Operate stop lamp switch and check continuity between stop
lamp switch harness connector terminals.
OK or NG
OK
>> GO TO 4.
NG
>> Replace stop lamp switch. Refer to
Self-diagnostic results
PRESS SEN CIRCUIT
Terminal
Condition
Continuity
3
−
4
Release stop lamp switch
(When brake pedal is depressed.)
Yes
Push stop lamp switch
(When brake pedal is released.)
No
SFIA3390E
TROUBLE DIAGNOSIS FOR SYSTEM
BRC-39
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
4.
CHECK STOP LAMP SWITCH CIRCUIT
1.
Turn ignition switch OFF and disconnect VDC/TCS/ABS control
unit harness connector.
2.
Check continuity between VDC/TCS/ABS control unit harness
connector M93 terminal 48 and ground.
OK or NG
OK
>> GO TO 5.
NG
>> Open or short in harness between VDC/TCS/ABS control unit and stop lamp switch
5.
CHECK PRESSURE SENSOR CONNECTOR
1.
Turn ignition switch OFF and disconnect VDC actuator (pressure sensor) connector and VDC/TCS/ABS
control unit connector. Then reconnect them securely.
2.
Perform VDC/TCS/ABS control unit self-diagnosis again.
OK or NG
OK
>> Poor connection of connectors. Repair or replace suspect connector. Perform self-diagnosis
again.
NO
>> GO TO 6.
6.
CHECK PRESSURE SENSOR CIRCUIT
1.
Turn ignition switch OFF and disconnect VDC actuator (pres-
sure sensor) connector and VDC/TCS/ABS control unit connec-
tor.
2.
Check continuity between VDC/TCS/ABS control unit harness
connector M93 and VDC actuator (pressure sensor) harness
connector E50.
OK or NG
OK
>> GO TO 7.
NG
>> Open or short in harness. Repair or replace the suspect harness.
SFIA2450E
VDC/TCS/ABS control unit
Ground
Measurement condition
Voltage
48
—
Brake pedal depressed
Battery voltage (Approx. 12 V)
Brake pedal not depressed
Approx. 0 V
VDC/TCS/ABS control unit
Pressure sensor
Continuity
69
30
Yes
68
31
67
32
SFIA1367E
BRC-40
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM
7.
CHECK PRESSURE SENSOR
1.
Connect VDC actuator (pressure sensor) connector and VDC/TCS/ABS control unit connector.
2.
Check “DATA MONITOR” for “PRESS SENSOR”. Check if results are normal.
OK or NG
OK
>> Perform VDC/TCS/ABS control unit self-diagnosis again.
NG
>> Pressure sensor malfunction. Replace VDC actuator (inside pressure sensor).
Steering Angle Sensor System
NFS00075
INSPECTION PROCEDURE
1.
CHECK SELF-DIAGNOSTIC RESULTS
Check the self-diagnostic results.
Is above displayed on self-diagnosis display?
YES
>> GO TO 2.
NO
>> INSPECTION END
2.
CHECK CONNECTOR
1.
Turn ignition switch OFF and disconnect steering angle sensor connector and VDC/TCS/ABS control unit
connector. Then reconnect them securely.
2.
Perform VDC/TCS/ABS control unit self-diagnosis again.
OK or NG
OK
>> Poor connection of connectors. Repair or replace suspect connector. Perform self-diagnosis
again.
NO
>> GO TO 3.
3.
CHECK STEERING ANGLE SENSOR CIRCUIT
1.
Turn ignition switch OFF and disconnect VDC/TCS/ABS control
unit connector and steering angle sensor connector.
2.
Check continuity between VDC/TCS/ABS control unit harness
connector M93 and steering angle sensor harness connector
M22.
OK or NG
OK
>> GO TO 4.
NG
>> Open or short in harness. Repair or replace the suspect
harness.
Condition
Data monitor display
Brake pedal depressed
−
40 to 300 bar
When brake pedal is released.
Approx. 0 bar
Self-diagnostic results
ST ANGLE SEN CIRCUIT
VDC/TCS/ABS control unit
Steering angle sensor
Continuity
2
3
Yes
SFIA1368E
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