Infiniti G35 (V35). Manual — part 245
TROUBLE DIAGNOSIS FOR SYSTEM
BRC-41
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
4.
CHECK DATA MONITOR
1.
Connect VDC/TCS/ABS control unit connector and steering angle sensor connector.
2.
Check “DATA MONITOR” for “STR ANGLE SIG”. Check if results are normal.
OK or NG
OK
>> Perform VDC/TCS/ABS control unit self-diagnosis again.
NG
>> Replace steering angle sensor and adjust neutral position of steering angle sensor. Refer to
6, "Adjustment of Steering Angle Sensor Neutral Position"
Yaw Rate/Side G Sensor System
NFS00076
CAUTION:
Sudden turns (such as spin turns, acceleration turns), drifting, etc.; When VDC function is OFF (VDC
OFF indicator lamp is turned on) may cause yaw rate/side G sensor circuit to indicate a malfunction.
However, this is not a malfunction, if normal operation can be resumed after restarting engine. Then
erase memory of self-diagnosis.
INSPECTION PROCEDURE
1.
CHECK SELF-DIAGNOSTIC RESULTS
Check the self-diagnostic results.
CAUTION:
If vehicle is on turn-table at entrance to parking garage, or on other moving surface, VDC OFF indica-
tor lamp may illuminate and CONSULT-II self-diagnosis may indicate yaw rate sensor system malfunc-
tion. However, in this case there is no malfunction in yaw rate sensor system. Take vehicle off of turn-
table or other moving surface, and start engine. Results will return to normal. And after doing spin
turns or acceleration turns with VDC “OFF” (VDC OFF switch “ON”), too, the results will return to a
normal state by re-starting vehicle.
Do “YAW RATE SENSOR ” and “SIDE G-SEN CIRCUIT” appear on self-diagnosis display?
YES
>> GO TO 2.
NO
>> INSPECTION END
2.
CHECK CONNECTOR
1.
Turn ignition switch OFF and disconnect yaw rate/side G 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.
Steering condition
DATA MONITOR
Driving straight
-5 to +5
°
Turned 90
°
to right
Approx. +90
°
Turned 90
°
to left
Approx. -90
°
Self-diagnostic results
YAW RATE SENSOR
SIDE G-SEN CIRCUIT
BRC-42
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM
3.
CHECK YAW RATE/SIDE G SENSOR CIRCUIT
1.
Turn ignition switch OFF and disconnect yaw rate/side G sensor
connector and VDC/TCS/ABS control unit connector.
2.
Check continuity between VDC/TCS/ABS control unit harness
connector M93 and yaw rate/side G sensor harness connector
M51.
OK or NG
OK
>> GO TO 4.
NG
>> Open or short in harness. Repair or replace the suspect harness.
4.
CHECK DATA MONITOR
1.
Connect VDC/TCS/ABS control unit connector and yaw rate/side G sensor connector.
2.
Check “DATA MONITOR” for yaw rate /side G sensor. Make sure results are normal.
OK or NG
OK
>> Perform VDC/TCS/ABS control unit self-diagnosis again.
NG
>> Malfunction of yaw rate/side G sensor. Replace yaw rate/side G sensor and perform VDC/TCS/
ABS control unit self-diagnosis again.
SFIA2446E
VDC/TCS/ABS control unit
Yaw rate/ Side G sensor
Continuity
78
1
Yes
77
2
34
3
79
4
18
5
80
6
Vehicle condition
Yaw rate sensor
(Data monitor standard)
Side G sensor
(Data monitor standard)
Stopped
-4 to +4 deg/s
-1.1 to +1.1 m/s
2
Turning right
Negative value
Negative value
Turning left
Positive value
Positive value
TROUBLE DIAGNOSIS FOR SYSTEM
BRC-43
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
Solenoid and VDC Change-Over Valve System
NFS00077
INSPECTION PROCEDURE
1.
CHECK SELF-DIAGNOSTIC RESULTS (1)
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 VDC/TCS/ABS control unit connector and VDC actuator con-
nectors. Then reconnect them securely.
2.
Reconnect connectors securely and perform self-diagnosis again.
Do any self-diagnosis items appear?
YES
>> GO TO 3.
NO
>> Poor connection. Repair or replace connector.
3.
CHECK ACTUATOR SOLENOID
1.
Turn ignition switch OFF and disconnect VDC relay box connec-
tor E222 and VDC actuator connectors.
2.
Check resistance of VDC actuator solenoid.
OK or NG
OK
>> GO TO 4.
NG
>> Check harness open or short between VDC relay box and VDC actuator. If harness is OK, replace
VDC actuator.
Self-diagnostic results
IN ABS SOL
OUT ABS SOL
USV LINE [FL-RR]
USV LINE [FR-RL]
HSV LINE [FL-RR]
HSV LINE [FR-RL]
SFIA2447E
VDC actuator connector
VDC relay box
Resistance value
7, 3, 5, 1, 25, 26
16
6.0 - 11
Ω
17, 15, 16, 14, 27, 28
3.0 - 5.0
Ω
BRC-44
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM
4.
CHECK SOLENOID CIRCUIT
1.
Disconnect VDC/TCS/ABS control unit and VDC actuator con-
nectors.
2.
Check continuity between VDC/TCS/ABS control unit harness
connector M93 and VDC actuator harness connector E49 and
E50.
OK or NG
OK
>> Replace VDC actuator.
NG
>> If the open or short in harness, repair or replace harness.
Actuator Motor and Motor Relay System
NFS00078
INSPECTION PROCEDURE
1.
CHECK SELF-DIAGNOSTIC RESULTS
Check self-diagnostic results.
Is the above displayed in the self-diagnosis display items?
YES
>> GO TO 2.
NO
>> INSPECTION END
2.
CHECK CONNECTOR
1.
Turn ignition switch OFF and disconnect VDC/TCS/ABS control unit connector and VDC relay box con-
nectors.
2.
Reconnect connectors securely and perform self-diagnosis again.
Do any self-diagnosis items appear?
YES
>> GO TO 3.
NO
>> Poor connection. Repair or replace connector.
SFIA1371E
VDC/TCS/ABS control unit
VDC actuator
Continuity
5
1
Yes
3
14
6
7
4
17
26
3
55
15
53
5
25
16
49
26
50
25
54
28
52
27
Self-diagnostic results
PUMP MOTOR
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