Infiniti Q45. Manual — part 269
TROUBLE DIAGNOSIS FOR SYSTEM
BRC-41
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
3.
CHECK CONNECTOR
1.
Turn ignition switch “OFF”.
2.
Disconnect steering angle sensor connector M52 and VDC/TCS/ABS control unit connector E218. And
check terminals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair
or replace terminal.
3.
Reconnect connectors and then perform the self-diagnosis.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 4.
4.
CHECK STEERING ANGLE SENSOR CIRCUIT
1.
Turn ignition switch “OFF”.
2.
Disconnect VDC/TCS/ABS control unit connector and steering angle sensor connector.
3.
Check continuity between VDC/TCS/ABS control unit harness
connector E218 and steering angle sensor harness connector
M52.
OK or NG
OK
>> GO TO 5.
NG
>> Open or short in harness. Repair or replace suspect har-
ness.
5.
CHECK DATA MONITOR
With CONSULT-II
1.
Turn ignition switch “ON”. (Do not start engine.)
2.
Select “DATA MONITOR” mode for “VDC” with CONSULT-II.
3.
Execute “DATA MONITOR” for “STEERING ANGLE SIGNAL”. Make sure that results are normal.
OK or NG
OK
>> Perform VDC/TCS/ABS control unit self-diagnosis again.
NG
>> Replace spiral cable (steering angle sensor) and adjust neutral position of steering angle sensor.
Refer to
BRC-6, "Adjustment of Steering Angle Sensor Neutral Position"
.
2 - 3
: Continuity should exist.
SFIA2314E
Steering condition
Data monitor
Driving straight
-5
°
to +5
°
Turn 90
°
to right
Approx. +90
°
Turn 90
°
to left
Approx. -90
°
BRC-42
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM
Yaw Rate/Side G Sensor
NFS000D3
CAUTION:
●
Sudden turns (such as spin turns, acceleration turns), drifting, etc. When VDC function is off (VDC
OFF switch “ON”) may cause yaw rate/side G sensor system 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.
●
If vehicle is on turn-table at entrance to parking garage, or on other moving surface, VDC OFF
indicator lamp may illuminate and CONSULT-II self-diagnosis may indicate yaw rate sensor sys-
tem malfunction. 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 function is off (VDC OFF switch “ON”),
too, the results will return to a normal state by re-starting vehicle.
INSPECTION PROCEDURE
1.
CHECK SELF-DIAGNOSIS RESULTS
With CONSULT-II
1.
Turn ignition switch “ON”. (Do not start engine.)
2.
Select “SELF-DIAG RESULTS” mode for “VDC” with CONSULT-II.
3.
Touch “ERASE”.
4.
Turn ignition switch “OFF” and wait at least 10 seconds.
5.
Check the self-diagnostic results.
Is above displayed in the self-diagnosis display?
YES
>> GO TO 2.
NO
>> INSPECTION END
2.
CHECK CONNECTOR
1.
Turn ignition switch “OFF”.
2.
Disconnect yaw rate/side G sensor connector M99 and VDC/TCS/ABS control unit connector E218 and
check terminals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair
or replace terminal.
3.
Reconnect connectors and then perform the self-diagnosis.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 3.
Self-diagnosis results
YAW RATE SENOR
SIDE G-SENSOR CIRCUIT
TROUBLE DIAGNOSIS FOR SYSTEM
BRC-43
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
3.
CHECK YAW RATE/SIDE G SENSOR POWER SUPPLY CIRCUIT
1.
Turn ignition switch “OFF”.
2.
Disconnect yaw rate/side G sensor connector M99.
3.
Turn ignition switch “ON” or “OFF”.
4.
Check voltage between yaw rate/side G sensor harness con-
nector M99 terminal 3 and ground.
OK or NG
OK
>> GO TO 4.
NG
>>
●
Repair or replace malfunctioning components.
●
Perform the self-diagnosis, and make sure that the result shows
″
NO DTC IS DETECTED
″
.
4.
CHECK YAW RATE/SIDE G SENSOR HARNESS
1.
Turn ignition switch “OFF”.
2.
Disconnect yaw rate/side G sensor connector and VDC/TCS/ABS control unit connector.
3.
Check continuity between VDC/TCS/ABS control unit harness
connector E218 and yaw rate/side G sensor harness connector
M99.
OK or NG
OK
>> GO TO 5.
NG
>> Open or short in harness. Repair or replace suspect harness.
5.
CHECK DATA MONITOR
With CONSULT-II
1.
Turn ignition switch “ON”. (Do not start engine.)
2.
Select “DATA MONITOR” mode for “VDC” with CONSULT-II.
3.
Check “DATA MONITOR” for yaw rate /side G sensor. Make sure that 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 sensor and perform VDC/TCS/ABS control unit
self-diagnosis again.
Yaw rate/side G sen-
sor
Ground
Condition
Voltage
3
—
Ignition switch
ON
Battery voltage
(Approx. 12 V)
Ignition switch
OFF
Approx. 0V
SFIA3044E
78 - 1
: Continuity should exist.
77 - 2
: Continuity should exist.
79 - 4
: Continuity should exist.
18 - 5
: Continuity should exist.
80 - 6
: Continuity should exist.
PFIA0774E
Vehicle condition
Yaw rate sensor
(Data monitor stan-
dard)
Side G sensor
(Data monitor stan-
dard)
Stopped
Approx. 0 deg/s
Approx. 0 m/s
2
Turning right
Negative value
Negative value
Turning left
Positive value
Positive value
BRC-44
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM
Solenoid and VDC Switching Valve
NFS000D4
INSPECTION PROCEDURE
1.
CHECK SELF-DIAGNOSIS RESULTS
With CONSULT-II
1.
Turn ignition switch “ON”. (Do not start engine.)
2.
Select “SELF-DIAG RESULTS” mode for “VDC” with CONSULT-II.
3.
Touch “ERASE”.
4.
Turn ignition switch “OFF” and wait at least 10 seconds.
5.
Check the self-diagnostic results.
Is above displayed in the 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 E218 and VDC actuator
connector E21, E22, check terminal for deformation, disconnection, and so on. If any malfunction is found,
repair or replace terminal.
2.
Reconnect connectors and then perform the self-diagnosis.
OK or NG
OK
>> INSPECTION END.
NG
>> GO TO 3.
Self-diagnosis results
FR LH IN ABS SOL
FR LH OUT ABS SOL
RR RH IN ABS SOL
RR RH OUT ABS SOL
FR RH IN ABS SOL
FR RH OUT ABS SOL
RR LH IN ABS SOL
RR LH OUT ABS SOL
PRIMARY SIDE USV CIRCUIT
SECONDARY SIDE USV CIRCUIT
PRIMARY SIDE HSV CIRCUIT
SECONDARY SIDE HSV CIRCUIT
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст